API Development is an effective way for software to communicate and interact with each other over the internet. It’s a great way for developers to expand the capabilities of a program or systems by creating interfaces and allow data to be shared between different types of technology. With an API, existing systems can connect and more advanced solutions can be made. Hiring an API Developer can enable businesses to streamline processes and enable a much faster integration of existing software solutions.

API Developers are skilled engineers specialized in creating new APIs and maintaining existing ones. They are responsible for developing and troubleshooting current APIs, designing APIs from standards-based web services, maintaining inventory and implementing authorization mechanisms. Additionally, they incorporate different technologies together to create advanced software solutions that integrate cloud systems like Amazon Web Services or MongoDB and APIs with point-and-click platforms, like WordPress or HubSpot.

Here’s some projects that our expert API Developer made real:

  • Creating advanced databases on different cloud systems
  • Linking between two cameras from a microscope
  • Interfacing with customizing Wordpress themes, Woocommerce themes and SMS services
  • Building secure back end systems to analyze different public APIs
  • Applying sophisticated authorization mechanisms
  • Creating comprehensive ecommerce websites using MERN Stack
  • Developing node APIs for exchange markets using Node.js, Web3.js, Ether.js
  • Automatically out of stocking items from supplier’s stock through an API system.

It is no surprise that good API Development is the cornerstone of many successful software solutions. Our expert API Developers are well experienced in developing suitable solutions for projects ranging from app development to SaaS applications, game development to enterprise system integrations. WithFreelancer.com, businesses can easily hire one of these skilled professionals to build their own bespoke projects that are perfectly tailored for their needs. So why not post your own project on Freelancer today and hire an expert API Developer?

From 93,871 reviews, clients rate our API Developers 4.9 out of 5 stars.
Hire API Developers

API Development is an effective way for software to communicate and interact with each other over the internet. It’s a great way for developers to expand the capabilities of a program or systems by creating interfaces and allow data to be shared between different types of technology. With an API, existing systems can connect and more advanced solutions can be made. Hiring an API Developer can enable businesses to streamline processes and enable a much faster integration of existing software solutions.

API Developers are skilled engineers specialized in creating new APIs and maintaining existing ones. They are responsible for developing and troubleshooting current APIs, designing APIs from standards-based web services, maintaining inventory and implementing authorization mechanisms. Additionally, they incorporate different technologies together to create advanced software solutions that integrate cloud systems like Amazon Web Services or MongoDB and APIs with point-and-click platforms, like WordPress or HubSpot.

Here’s some projects that our expert API Developer made real:

  • Creating advanced databases on different cloud systems
  • Linking between two cameras from a microscope
  • Interfacing with customizing Wordpress themes, Woocommerce themes and SMS services
  • Building secure back end systems to analyze different public APIs
  • Applying sophisticated authorization mechanisms
  • Creating comprehensive ecommerce websites using MERN Stack
  • Developing node APIs for exchange markets using Node.js, Web3.js, Ether.js
  • Automatically out of stocking items from supplier’s stock through an API system.

It is no surprise that good API Development is the cornerstone of many successful software solutions. Our expert API Developers are well experienced in developing suitable solutions for projects ranging from app development to SaaS applications, game development to enterprise system integrations. WithFreelancer.com, businesses can easily hire one of these skilled professionals to build their own bespoke projects that are perfectly tailored for their needs. So why not post your own project on Freelancer today and hire an expert API Developer?

From 93,871 reviews, clients rate our API Developers 4.9 out of 5 stars.
Hire API Developers

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    160 jobs found

    My Replit project needs a WhatsApp integration that can both send and receive messages in real time. I work exclusively in Python on Replit, so the entire solution must run within that environment without relying on locally installed services. What the finished module should handle for me: • Message templates so I can reuse common replies and broadcast texts. • File attachments (images, PDFs, etc.) sent and received, with the files saved to Replit storage or an S3-style bucket I can configure. • Message scheduling that lets me queue outbound messages for future delivery, preferably via a simple cron-style or timestamp trigger. I’ll need setup with meta api and setting up business api account with templates once the basic scaffolding is in place. Clean, well-comme...

    ₹6970 Average bid
    ₹6970 Avg Bid
    31 bids
    AI Chatbot Development
    6 days left
    Verified

    I need an AI-driven chatbot built specifically for customer support on our website. Its main responsibility will be handling technical support questions—everything from first-tier troubleshooting to guiding users toward relevant documentation and, when needed, routing them to a live agent. The API must be of you can choose any model but should use less token to fit in Helyx AI free 100k tokens per day Quota

    ₹11171 Average bid
    ₹11171 Avg Bid
    68 bids

    I need a compact, rock-solid middleware/API that keeps fingerprint templates in our legacy MySQL database perfectly synchronized with a fleet of new Android terminals that carry X Brand sensors. The service must pull any template changes from MySQL, push them to every terminal, and confirm successful enrollment on the device side without manual intervention. Beyond the basic sync loop I also want: • real-time data validation before a template leaves the server, • detailed logging of every synchronization event, and • smart error handling that notifies me immediately if a template fails to copy, a device is offline, or any other exception appears. The stack is open: please propose the language and framework you believe will deliver low-latency performance and easy mai...

    ₹41627 Average bid
    ₹41627 Avg Bid
    134 bids

    The mobile front-end is ready; now I need a solid Node.js backend that exposes clean REST APIs, persists data in PostgreSQL, and secures every call with JWT-based authentication. You will design the schema, write the services, wire up the auth flow, and make sure everything runs smoothly in test and production environments. Familiarity with cloud deployment (AWS, GCP, or similar) will help you hit the ground running, but the immediate focus is on well-structured code, documented endpoints, and reliable integration with the existing React Native UI. Key deliverables • Fully documented REST API (OpenAPI/Swagger preferred) • PostgreSQL schema & migration scripts • JWT auth implementation with role-based authorization hooks • Environment-specific configs plus a...

    ₹7542 Average bid
    ₹7542 Avg Bid
    46 bids

    I’m looking for one trusted full-stack developer to take over an existing mobile chat app and bring it to production. The project already has: 1. Flutter mobile app UI/screens 2. Existing backend codebase 3. Admin panel 4. Database schema and API work started 5. Existing app concept, design assets, and APK builds The remaining work is mainly: Review and clean up the existing codebase Connect the Flutter app to the backend APIs Complete authentication and user onboarding Complete real-time chat functionality Fix backend issues and missing production features Implement safety/reporting/blocking flows Complete media sharing and notification flows Prepare app for production deployment Improve testing, security, and reliability Support app store readiness if needed Required Skills 1. F...

    ₹52225 Average bid
    ₹52225 Avg Bid
    47 bids

    I need a comprehensive online shop for both trading and collectible card games. The platform should allow users to create accounts, with profiles to track their transactions and collections. Essential features: - User Accounts: Profiles for tracking collections and transactions. - Shopping Cart & Checkout: Seamless purchase process. - Search & Filter: Easily find specific cards or sets. - Direct Buy/Sell Option: Users can trade or sell cards directly. Ideal Skills & Experience: - E-commerce development - Experience with user account systems - Strong search/filter functionality implementation - Familiarity with card trading mechanics I'm looking for a developer who can create a user-friendly, secure, and efficient platform. Please provide a portfolio of similar work. mai...

    ₹107027 Average bid
    ₹107027 Avg Bid
    187 bids

    i want to create a website for catalogue of my bakery and the customer shoul be able to filter design as per category choose required weight and flavour to get the price and his order should get exported to whatsapp

    ₹6397 Average bid
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    89 bids

    I am ready to overhaul the way my business runs by building a single, tightly-integrated environment that covers everything from back-office workflows to online sales. My first milestone is a robust Backend Management (ERP) system. It must handle inventory in real time, tie every product movement to accurate financial accounting, and give me a clear picture of each customer through a built-in CRM. Staff management—including clock-in/clock-out attendance—needs to live in the same dashboard so HR data flows straight into payroll and reporting without manual imports. Once the ERP core is stable, the next layer is an in-store POS that reads and writes to the same database. A sale at the counter should instantly update stock levels, customer history, and daily financials inside ...

    ₹193145 Average bid
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    65 bids

    I’m building a prototype that relies on Hugging Face’s models, and I need a clear, recorded walkthrough that shows—step by step—how to take a pre-trained model and put it into production. The focus is deployment, not training, so please cover the process from selecting a model on the Hub through exposing it as an accessible API via Hugging Face Inference Endpoints or Spaces. Because I learn best by doing, the core of the tutorial should be an interactive demo: a live notebook or lightweight web app that I can spin up, tweak, and extend. As you record the session, narrate what you’re doing and why—showing the essential commands, environment setup, and any common pitfalls. By the end, I should be able to hit an endpoint from a simple front-end snippet a...

    ₹3151 Average bid
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    23 bids

    لدي منظومة تعمل بالفعل وأحتاج إلى مطوّر برمجيات خلفية محترف يركّز حصرياً على تحسين الأداء فيها، وبالتحديد رفع درجة تحمّلها عندما تتعرّض لأحمال مرتفعة. الهدف هو أن يستمر النظام بالاستجابة بثبات وسرعة حتى عند الذروة. سأزوّدك بكل ما يلزم من شفرة حالية، سجلّات، وبيانات الاختبار. المطلوب منك تحليل عنق الزجاجة، تنفيذ التعديلات اللازمة — سواء كانت إعادة كتابة أجزاء من الكود، تحسين الاستعلامات، أو إدخال حلول تخزين مؤقت وتوزيع الأحمال — ثم توثيق النتائج بالأرقام. قبولي للتسليم يعتمد على: • تقرير قياس أداء قبل/بعد يتضمّن أوامر الاختبار والأدوات المستخدمة • كود مُحسَّن ومعلَّق بوضوح • إرشادات نشر سريعة تمكّنني من تفعيل التغييرات على بيئة الإنتاج إن كنت متمرساً في ضبط الأداء، أدوات القياس، واختبار الضغط، فسيسعدني العمل معك.

    ₹5156 / hr Average bid
    ₹5156 / hr Avg Bid
    23 bids
    Client Engagement Portal
    6 days left
    Verified

    This is not a freelancing marketplace like Upwork or Freelancer. Instead, it is a client-facing platform where individuals and businesses can submit their IT project requirements directly to OpsBridges. Our internal team will review each enquiry, communicate with the client, prepare quotations, collect payments, manage project progress, and deliver the final solution. The application should be modern, responsive, secure, and easy to use, with a clean user interface and scalable architecture. Project Overview The platform will include a responsive landing page where visitors can learn about our services and submit their project requirements through a prominent "Post Your Project" call-to-action. Clients should be able to register, create their profile, submit IT project requir...

    ₹30456 Average bid
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    58 bids

    Our organization, is looking for an experienced Developer who can recommend the quickest, optimal and efficient method to upload multiple video and Jpg files(from 1 to 12 files at a time) to our existing Cloud Storage provider AWS like buckets(viz. Wassabi) for our new OTT platform soon to be launched. Currently, our content files are being uploaded via our php admin panel and which is extremely slow and tedious.

    ₹7065 Average bid
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    45 bids

    I’m putting together a courier tracking system for our Lion Parcel kurir operation and the priority right now is clear, reliable access to historical delivery data. Every parcel scan—pickup, transit, attempted drop-off, completion—needs to be captured, stored, and then surfaced through a web-based dashboard that’s quick to search, filter, and export. The core of the job is therefore twofold: • build or connect an API layer that ingests our existing scan events and stores them in a tidy, query-friendly structure, and • design a responsive web dashboard where authorised staff can log in, choose a date range, filter by AWB, courier, hub, or status, and instantly see the journey summary in table or chart form (CSV/PDF export included). Real-time maps...

    ₹1814 / hr Average bid
    ₹1814 / hr Avg Bid
    123 bids

    We are looking for an experienced developer to upgrade our existing Python/FastAPI backend and implement a new subscription model in our React Native mobile application. Additionally, you will be responsible for setting up automated video rendering and social media posting workflows. Milestone 1: Backend Refactoring (Python/FastAPI) Completely remove the Playwright dependency to reduce RAM and CPU overhead. Integrate a premium JSON Search API (details provided upon hire) to fetch image data quickly. Ensure our custom extraction logic (OpenCV) and integration with our internal APIs remains intact and performs efficiently on the new data stream. New Feature: Implement functionality to extract data directly from specific "creator profiles" as an additional data source. Ensure robu...

    ₹9452 Average bid
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    63 bids

    We are looking for an experienced team or individual to build a modern digital marketplace and social platform where users can buy and sell digital assets such as websites, domains, online businesses, SaaS products, e-commerce stores, apps, source code, digital services, and other legally transferable online assets. The platform should be similar to a combination of Facebook Marketplace, Flippa, and a social network, with built-in escrow and private messaging. Please provide your fixed-price quote, estimated timeline, technology stack recommendation, and examples of similar marketplace or social platforms you have built. Required functionality: • User registration and login via email, Google, and Apple.
• User profiles with official name, username, profile photo.
• Verified ...

    ₹120680 Average bid
    ₹120680 Avg Bid
    196 bids

    I need a seasoned reverse engineer who can take a deep dive into a particular video-streaming site and return with a clear, thorough explanation of how it actually works. While I want the full end-to-end picture, my main curiosity lies in the video-player layer—specifically how it performs AI-based upscaling during playback. Here is what I expect you to uncover and document: • Front-end stack in use and any frameworks that stand out. • Detailed breakdown of the video player itself—controls, custom scripts, third-party libraries, and, most importantly, the AI upscaling workflow (models employed, in-browser processing vs. server-side inference, adaptive behaviour, fall-backs). • Exact video delivery approach: HLS, DASH, WebRTC, peer-assist, or any hybrid they...

    ₹3819 Average bid
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    23 bids

    Developer Instruction Specification: Web3 Liquidity Engine Integration Client: PROMPTLORD AI Systems Inc. Corporate Motto: We Excavate the Entropy & Engineer the GAIN. Target Architecture: Fractionalized Real Estate RWA Tokenization Layer 1. Project Overview & Objective The goal of this sprint is to construct and deploy the bridging middleware and frontend connection layer that transforms static, illiquid real estate data structures into an active, high-velocity blockchain asset engine. You are building the connective tissue between our localized property registry schemas (data payloads) and a decentralized smart contract architecture (fractional tokenization). 2. Technical Stack & Environmental Requirements Frontend/App Framework: (App Router, React 19) or standard robust Typ...

    ₹32461 Average bid
    ₹32461 Avg Bid
    92 bids

    I need a self-contained module that plugs into our existing vehicle management software and lets me drop an entire folder of images—often 1,000 – 2,500 at a time—and have every photo land on the correct vehicle record automatically. Key behaviour • The module reads the Vehicle ID embedded in each filename and uses that to match the photo to the right record. No manual pairing screens or look-ups. • Supported formats must include JPEG, PNG and GIF. • The system should be comfortable handling batches in the low-thousands without timing out, losing images or duplicating records. Workflow example I export photos from the camera, rename them with the Vehicle ID (e.g. , ) and place them in one folder. When I trigger the upload, the module should detect each...

    ₹1090 Average bid
    ₹1090 Avg Bid
    24 bids

    **This is not a job portal** **A landing page is Must** The platform should enable companies to register using their official business email address and submit hiring requirements through the portal. Once a requirement is created, it should be assigned to a recruitment manager, who can further allocate it to the most suitable recruiter. Recruiters should be able to work on assigned requirements, submit candidate profiles, update hiring progress, and maintain a centralized candidate database. Clients should be able to log in at any time to track the progress of their hiring requirements and view the status of submitted candidates. One of the key objectives of this project is to build a reusable Candidate Database. Every candidate added by recruiters should become part of a centralized dat...

    ₹25813 Average bid
    ₹25813 Avg Bid
    95 bids
    Urgent Node.js Web App Build
    5 days left
    Verified

    I’m looking for a skilled Node.js developer who can start right away and take full ownership of building a production-ready web application. The core goal is clear: deliver a solid, scalable Node.js backend that serves a modern web interface. Here’s what I need from you: • Set up the project structure (preferably Express or a comparable lightweight framework) with clean, well-commented code. • Advise on and integrate the most suitable database layer. • Establish routing, middleware, and any environment configuration required for a smooth deployment flow (dev, staging, production). • Collaborate with me to refine any missing feature details and map them into a clear sprint plan so that we keep velocity high. I can share the domain concept and user flo...

    ₹1397 Average bid
    ₹1397 Avg Bid
    57 bids

    I want to launch a fully-featured online poker platform that players can access directly or that operators can bolt onto an existing casino / sportsbook via a clean, well-documented API. The core games are Texas Hold'em and Omaha, both running on a provably fair RNG with real-time hand history and rake tracking. Players should be able to register, log in and start a table or join an existing one, then deposit through Credit or Debit Card and the most popular cryptocurrencies (BTC, ETH, USDT). A cashier module with KYC hooks, risk limits and automated withdrawals is required so the site can run at the lowest possible operational fee. The user interface must follow a completely custom design. I will provide brand guidelines; everything from lobby to table animations should match that ...

    ₹3628 Average bid
    ₹3628 Avg Bid
    69 bids

    Hi i am looking for lead generation saas app from different sources. You must have knowledge cold traffic lead generation. Need proper devloper both front end and backend. We will talk our to get lead, once you apply the job. --Please don't bid with ai description, just use your own language--- ai bid will be rejected Only you must devlop anyting as per requirements. if you have cold lead genration idea then bid with your thought. Thank You

    ₹14608 Average bid
    ₹14608 Avg Bid
    62 bids

    I’m looking for one trusted full-stack developer to take over an existing mobile chat app and bring it to production. The project already has: 1. Flutter mobile app UI/screens 2. Existing backend codebase 3. Admin panel 4. Database schema and API work started 5. Existing app concept, design assets, and APK builds The remaining work is mainly: Review and clean up the existing codebase Connect the Flutter app to the backend APIs Complete authentication and user onboarding Complete real-time chat functionality Fix backend issues and missing production features Implement safety/reporting/blocking flows Complete media sharing and notification flows Prepare app for production deployment Improve testing, security, and reliability Support app store readiness if needed Required Skills 1. F...

    ₹25874 Average bid
    ₹25874 Avg Bid
    101 bids
    Escrow Website & Android App
    5 days left
    Verified

    I need a complete escrow solution delivered as both a responsive website and a native Android application. The core objective is to safeguard buyers who purchase goods from unfamiliar vendors by holding funds in escrow until the package is confirmed as received. Key functions I must see working end-to-end: • Multi-payment gateway integration: PayPal, M-Pesa, and Visa Card should all process deposits, releases, and refunds seamlessly. • Straightforward email-and-password authentication so users can register, log in, and manage their accounts without social logins. • A buyer-seller workflow that automatically locks the payment, notifies each party of status changes, and releases funds on my defined trigger (package delivered or dispute resolved). • Built-in dispu...

    ₹36567 Average bid
    ₹36567 Avg Bid
    182 bids

    # SalonPro SaaS ## Software Requirements Specification (SRS) ### Version 1.0 ### Project Type Multi-Tenant SaaS Platform for Salon Management ### Target Market * Beauty Salons * Barbershops * Spa Centers * Beauty Clinics * Wellness Centers --- # 1. Project Overview SalonPro is a cloud-based Software as a Service (SaaS) platform designed to help salons manage appointments, customers, employees, services, invoices, and business performance. The system will support multiple salons under a single SaaS platform with subscription-based pricing. --- # 2. Objectives The system aims to: * Digitize salon operations * Reduce manual appointment management * Improve customer experience * Increase employee productivity * Provide business insights through reporting * Generate recurring sub...

    ₹28356 Average bid
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    215 bids

    I'm looking to build an AI-powered end-to-end platform for CarSauda that connects clients, customers, employees, vendors, and all subsidiaries. The initial focus will be on automating auctions. The platform needs to include: - Real-time bidding: Enable live bidding activities. - Automated notifications: Send alerts for bids and updates. - Bidder analytics: Provide insights on bidder behavior. The platform should integrate seamlessly with our internal systems. Ideal skills and experience: - Expertise in AI and automation - Strong background in developing auction platforms - Experience with system integration - Knowledge in analytics and real-time data processing - Proficiency in building user-friendly interfaces Looking for a reliable freelancer to bring this vision to life.

    ₹104012 Average bid
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    83 bids

    Project Title Fuel Management System (Petrol Pump Management Software) – Web Based Project Description I need a web-based Fuel Management System for my petrol pump. The system should be simple, fast, user-friendly, and work on desktop, laptop, and mobile browsers. This is for a petrol pump with: * 1 Petrol Tank (25,000 Liters) * 2 Diesel Tanks (25,000 Liters & 15,000 Liters) * 3 Fuel Dispensers * Multiple Nozzles * Lubricants Shop * Cash & Digital Payments The software should have the following modules. ⸻ 1. Dashboard * Daily Sales * Monthly Sales * Current Tank Stock * Today’s Fuel Purchase * Lubricants Sales * Cash Collection * Credit Sales * Profit Summary * Low Stock Alert ⸻ 2. Tank Management * Create/Edit Tanks * Tank Capacity * Current Stock * Opening...

    ₹18999 Average bid
    ₹18999 Avg Bid
    110 bids

    I need a solid Python script that connects to my Brokers account through the official API, automates live order execution, and performs the data analysis I normally run by hand. Here’s the flow I have in mind: I have code for zerodha broking account, that need to modifyed in mstock broker account Automate Options:(choose by tickbox) candle Buy(Red-Green) Candle Price Jump(Live 10Mins) candle (i will explain) Acceptance criteria –I dont know coding, if you insatll and run sucessfull then hire and release payment – Budget:Rs.700 for all work there is no negotiaion on price in any way(xpect more price dont waste your text) – if you show result with your talent, I give good review it is asset, if you have previously done similar projects and can show a portf...

    ₹955 Average bid
    ₹955 Avg Bid
    13 bids
    Fyers Trade Automation Coding
    5 days left
    Verified

    I need a developer who can turn my intraday stock-trading logic into a fully automated system inside the Fyers automation environment. The priority is simple and clear: once my entry parameters are met, orders must be sent to the Fyers API automatically—no manual clicks. Key expectations • Use Fyers automation tools and endpoints exclusively, wiring in any authentication, token refresh, and order-routing flows so the bot can run unattended during market hours. • Focus on placing trades automatically; position monitoring, reports, or other extras are not required at this stage. • Build the logic cleanly so I can later plug in new entry/exit rules without rewriting the framework. • Deliver well-commented source code, a short README that shows setup steps, a...

    ₹9166 Average bid
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    34 bids

    I'm looking for an experienced developer to create a custom bounty SMP plugin for Minecraft Java Edition on PaperMC. The plugin should include a system called "Bounty Credits." You earn 10 bounty credits for each bounty kill, which is defined as completing a bounty task. Key Requirements: - Bounty Credits System: Award 10 credits per bounty kill. which every 10 credit you get a extra heart until you reach 20 hearts and then you get permanent strength and speed 1 credits cap at 200 - Customizable bounties: Ability to set, manage, and complete bounties. - Multiple management commands: Develop several commands for bounty management. Ideal Skills and Experience: - Proficient in Java and Minecraft plugin development. - Experience with PaperMC and its ecosystem. - Strong command...

    ₹12698 Average bid
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    88 bids

    I have an idea for an automotive application that I would like to develop. The main problem is that when customers visit a repair workshop, the mechanic can usually diagnose the fault and estimate the labor cost. However, to know the price and availability of the required spare parts, the mechanic often has to contact or visit several spare parts stores. This wastes time for both the workshop and the customer. My application would solve this problem. How it works * The customer creates a simple profile (name, phone number, car model, and VIN/chassis number). * The customer or the mechanic enters the required spare part, adds a description, and can also upload a photo of the part if available. * The request is instantly sent to all spare parts suppliers registered on the platform. * Eac...

    ₹21673 Average bid
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    123 bids

    تحدي تطوير منصة "علمك" التعليمية بالذكاء الاصطناعي ​نبحث عن مطور أو فريق تقني متميز قادر على تحويل أفضل الحلول مفتوحة المصدر إلى منصة تعليمية SaaS متكاملة ومستقلة باسم "علمك". هذا ليس طلب عرض سعر أو مجرد تقديم أفكار نظرية، بل هو تحدٍ عملي خالص. من يرى في نفسه الكفاءة والقدرة على تقديم حل قوي، يمكنه البدء في تنفيذ رؤيته التقنية فوراً. سيتم تقييم النتائج الفعلية واختيار أفضل تنفيذ للتعاون معه بشكل مدفوع على تطوير المشروع. فكرة المشروع بدلاً من بناء نظام كامل من الصفر، نريد الاستفادة من أفضل المشاريع مفتوحة المصدر الموجودة عالمياً، ثم تخصيصها ودمجها وتطويرها وتحويلها إلى منتج تجاري جاهز ومتكامل. المطلوب: - رابط Demo أو نسخة قابلة للتجربة. - ذكر المشروع مفتوح المصدر المستخدم. - التعديلات والإضافات التي تم تنفيذها. - شرح مختصر للبنية التقنية. معايير الاختيار​ ​سيتم تقييم الم...

    ₹18999 Average bid
    ₹18999 Avg Bid
    80 bids

    I need a bilingual (Spanish-English) full-stack developer to build the first release of a SaaS platform that helps sellers import products from Amazon and AliExpress, run AI-powered optimizations, and publish listings seamlessly to Mercado Libre, eBay, and Shopify. Core workflow 1. Vendor import: Securely pull product data, images, and inventory from Amazon and AliExpress through their official APIs or reliable scraping alternatives. 2. AI optimization:
 • Product description enhancement
 • Price optimization
 • Keyword optimization 3. Marketplace publish: Push the optimized listings, images, and pricing to Mercado Libre, eBay, and Shopify with real-time inventory and order syncing. 4. Multitenant dashboard: One interface where users can connect accounts, map categori...

    ₹44396 Average bid
    ₹44396 Avg Bid
    198 bids

    Title: U.S.-Based Developers Needed for Active Software Project Collaboration I run a software development business that works on custom digital solutions for startups, businesses, and growing teams. We currently handle ongoing client work and are expanding our pool of reliable U.S.-based developers to support active and upcoming projects. This is not for one fixed project only. We are looking for long-term collaborators who can help with different client projects based on skill fit, availability, and project scope. Current and upcoming work may include: * Custom web applications * SaaS platforms * Business dashboards and admin panels * E-commerce systems * Automation tools * AI-powered features and integrations * API development and third-party integrations * Bug fixing, maintenance, ...

    ₹4869 / hr Average bid
    ₹4869 / hr Avg Bid
    90 bids

    I have a list of Discord servers operating in different countries and languages. The job is to send direct messages to users across each listed server. The message content will be customized for every server, with versions prepared in 10 different languages. Pricing Required 1. Test Run Send 1,000 test messages so I can evaluate whether your method works and whether the messages are successfully delivered. 2. Full Campaign Send 10,000 messages per month for 5 months. Total volume: 50,000 messages. Scope of Work You will handle the entire operation from start to finish, including the required accounts and setup. I will provide: graphics, message content, server links, instructions showing which message and language should be used for each server. The contract may be expanded if ...

    ₹2100 Average bid
    ₹2100 Avg Bid
    40 bids

    I have already designed and built most of C’8 – Coordinate, an open-source aid-coordination platform you can preview here: https://www.c8coordinate.com. The interface is in place; where I need help is on the backend. Your main task will be to implement and refine our internal APIs so the existing frontend can finally talk to the server smoothly. You will be shaping the data flow between the client app and the database layer: creating clean, well-documented endpoints, handling authentication hooks already stub-built, ensuring robust validation, and returning responses the UI expects. I am using a Git-based workflow and will grant access to the repo plus a small set of Postman collections that describe the calls I need. Key deliverables • Fully working internal API endpo...

    ₹1909 / hr Average bid
    ₹1909 / hr Avg Bid
    191 bids

    We are a financial service company looking for an experienced Full-Stack Developer or a small team to deploy our pre-built React-based Loan Management System, migrate its data layer from Firebase/Mock to a robust SQL Database (MySQL or PostgreSQL) with a secure Node.js backend, and build 2 companion Android apps that sync with this centralized database. The web portal's user interface, screens, states, and business logic are 100% complete and built in React (TypeScript) + Tailwind CSS + Vite. You only need to build the SQL backend, wire the API endpoints, build the Android applications, and go live on our custom domain.

    ₹12889 Average bid
    ₹12889 Avg Bid
    43 bids

    I need a production-ready chat agent that can handle frontline customer support in real time, generating dynamic answers instead of fixed scripts. The bot must: • Draw live information from my customer database, product catalog, support articles, and a separate set of internal training documents. • Create quizes, or downloadable PDFs in the users chosen language • Interpret a user’s intent, pull the correct data, and reply conversationally in clear English. • Maintain context across a session, hand off to a human seamlessly when confidence drops, and log the full conversation for analytics. You are free to build with Dialogflow, Rasa, LangChain, OpenAI, or a comparable NLP framework as long as you can deploy it to our existing platform (JavaScript - SEEDL) a...

    ₹279443 Average bid
    ₹279443 Avg Bid
    226 bids

    Project Brief: Development of an Auction & Classifieds Platform in Morocco (Similar to "Mzad Qatar") 1. Project Overview The objective is to develop a comprehensive digital ecosystem consisting of a Responsive Website, an Android App, and an iOS App. The platform will allow users in Morocco to publish classified ads and sell goods/services through either Live Auctions or Direct Sales. The system must feature a seamless, secure, and intuitive user experience tailored to the Moroccan market. * Target Market: Morocco * Supported Languages: Bilingual (Arabic & English) 2. Technical Scope of Work The project requires the development of a complete system architecture including: * Admin Panel (Web-based): For full management of users, ads, auctions, transactions, payments, re...

    ₹25205 Average bid
    ₹25205 Avg Bid
    254 bids

    I need a complete ecommerce mobile application built for both iOS and Android. The app will be dedicated to selling physical goods and should feel fast, modern, and secure from the first tap through checkout. Core functionality must include: • A clean product catalog that supports multiple images, variants, and stock levels • A smooth shopping cart flow that remembers items across sessions • Seamless payment gateway integration (Stripe, PayPal, or a comparable solution) with PCI-compliant handling of card data Beyond those essentials, I want intuitive search and filtering, push-notification support for order updates, and a lightweight analytics hook so I can track sales and user behavior. An admin console—whether web-based or baked into the app—should let m...

    ₹355070 Average bid
    ₹355070 Avg Bid
    110 bids

    I need a Ruby-based assistant to monitor my Twitter notifications daily. This tool should track specific keywords and compile a list of relevant posts. Requirements: - Use Ruby with Twitter gem - Track keywords: "Verbal offer", "offer", "Transfer", "offered" - Compile a daily list of posts with these keywords - Deliver the list via Google Sheets Ideal Skills: - Proficiency in Ruby - Experience with Twitter API (Twitter gem) - Familiarity with Google Sheets integration - Ability to set up daily automation

    ₹38190 Average bid
    ₹38190 Avg Bid
    155 bids

    Our in-house team built an ERP with React, Node, and MySQL that works, but the three main parts—Management of Projects, Billing for Clients, and Material Management—still feel like they are on their own. I need a full-stack developer to put them all together, finish the last few screens, and most importantly add the new tracking and intelligence features below. What needs to change? • AI-powered insights must be able to predict project finish dates and times, as well as flag cost overruns or budget deviations through easy-to-understand screens and reports that can be exported. • Tracking material theft and waste should be real-time. I don't want data to be updated once a day, once a week, or once a month; data needs to be updated all the time so a site manager...

    ₹1146 / hr Average bid
    ₹1146 / hr Avg Bid
    164 bids

    I’m building an Android application that must verify users through SMS-based one-time passwords. I already have the UI in place; what I need is a clean, reusable module that will: • Trigger an SMS-OTP request via a lightweight REST API you create (any language or framework you’re comfortable with). • Auto-read the incoming OTP on the device using Google’s SMS Retriever/User Consent API so the user never has to type it. • Enforce a resend option (configurable delay), show a visible countdown timer while the code is valid, and lock the flow after a defined number of failed attempts. Deliverables: 1. Android source (Kotlin or Java) wrapped as a library or clearly separated package. 2. Server-side endpoint(s) that generate and dispatch the SMS, plus s...

    ₹7542 Average bid
    ₹7542 Avg Bid
    57 bids

    Full Stack developer having 10+ .NET Core/Angular exp Design, develop, and maintain robust and scalable web applications using .NET Core for the backend and Angular 19 for the frontend. Implement server-side logic, APIs, and database interactions using C#, .NET Core, Entity Framework, and SQL Server (or other relevant databases). Develop responsive and interactive user interfaces using Angular, HTML, CSS, JavaScript/TypeScript, and related libraries (e.g., Angular Material, RxJS). Integrate frontend and backend components, ensuring seamless data flow and communication via RESTful APIs. Write clean, efficient, and testable code, adhering to coding standards and best practices. Participate in all phases of the Software Development Life Cycle (SDLC), including requirements gathering, design,...

    ₹1719 / hr Average bid
    ₹1719 / hr Avg Bid
    62 bids

    Need an expert in Claude Code to show me how to build a website where *Sellers can list holidays for sale *Purchaser can make payments for the holiday *Payment funds will be withheld & funds only released to seller once purchaser has approved the holiday has been transferred in their name *Only bid if you are an expert using Claude Code to build websites * You're willing to guide me and show me how to do it using screen-share or online meeting (eg. Zoom/Google-Meet) *You can speak good english I’m building an online marketplace where people can list package holidays for sale and buyers can pay for those holidays knowing their money is safe until the transfer is confirmed. I already have the concept mapped out and now need a Claude Code expert who can walk me through the ...

    ₹1050 / hr Average bid
    ₹1050 / hr Avg Bid
    229 bids

    1. Purpose This document defines the functional and non-functional requirements for developing a RetailMan-style Point of Sale (POS) system designed for retail businesses operating multiple branches, each running offline, with multiple terminals, multiple stock locations, and credit sales support. The system must be fast, reliable, offline-first, and suitable for supermarkets, electronics stores, hardware shops, and similar retail environments. 2. System Overview Each branch operates independently on its own local server and LAN. Multiple cashier terminals connect to the branch server. The system works 100% offline at branch level. A future sync module will allow consolidation between branches when internet is available. 3. Architecture Requirements 3.1 Deployment Model Branch Ser...

    ₹110082 Average bid
    ₹110082 Avg Bid
    122 bids

    Our occupational-health booking system is already live and about 99 % feature-complete, yet every time code is touched new problems appear. Built in Google AI Studio with a Node.js back end and a React front end, it now needs a steady pair of hands to make it production-reliable and to keep evolving it over the long term. Current pain points • Frequent bugs and crashes, especially around booking appointments, reviewing questionnaires, and granting certificates. • User-interface glitches that surface across every portal—client, company, and medical-technician views. What I need from you 1. Quickly audit the existing repo, trace the crash sources, and patch them without introducing regressions. 2. Clean up the React components so each interface feels consistent and ...

    ₹859 / hr Average bid
    ₹859 / hr Avg Bid
    189 bids

    I’m building an ASP.NET application that will run on IIS and I need reliable support throughout the back-end and database layers. The project covers three SQL-related areas: designing and structuring the database from scratch, migrating legacy data into the new schema, and then fine-tuning queries so performance stays sharp under load. On the application side I’m using Web Forms for the user interface, backed by a set of API services that expose selected functionality to other systems. Robust authentication and authorization must be baked in from the start so we can meet internal security policies. You’ll work mainly with Microsoft SQL Server, C#, and VB.NET (some legacy modules are in VB). Familiarity with Windows Server administration is a plus as it speeds up trouble...

    ₹1085 / hr Average bid
    ₹1085 / hr Avg Bid
    63 bids

    I am looking for a skilled Frontend Developer to build clean, responsive, high-performance interfaces for our web and mobile products. You'll work directly with our design and backend teams to turn Figma designs into pixel-perfect, production-ready UI. What you'll do: Build responsive web interfaces using React.js / Convert Figma/design files into clean, reusable components Integrate REST APIs and manage app state (Redux / Context / Zustand) Ensure cross-browser compatibility and mobile responsiveness Write maintainable, well-documented code Must-have skills: 5+ years with React.js and modern JavaScript (ES6+) Strong HTML5, CSS3, Tailwind CSS Experience with TypeScript and REST API integration Nice to have: , React Native, or Redux experience Familiarity with Git and CI/CD...

    ₹203170 Average bid
    ₹203170 Avg Bid
    201 bids

    I want to build a full-featured recruitment website that offers the same smooth experience people expect from Indeed or Naukri, but tailored to my own brand. The build must be clean, fast, and set up for the long run because I will rely on your company for lifetime support, maintenance, and future feature extensions. Core user roles • Employers – dedicated dashboard to post vacancies, manage incoming applications, and view detailed job-seeker profiles. • Administrators – full control panel for user, content, and payment oversight, plus site-wide analytics and moderation tools. Essential workflows Employers need to publish jobs in minutes, track applicant pipelines, and drill into résumé data without touching the database. Job seekers (public-fa...

    ₹102062 Average bid
    ₹102062 Avg Bid
    279 bids

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