REST API Jobs

Proof Of Concept for the mobile app for this lending platform is already live, and every middleware endpoint has been built and tested in Spring Boot. Now I need the browser-based front end. Your task is to turn my finished Figma designs into a production-grade Angular application that mirrors the mobile experience and runs flawlessly on modern browsers. As part of this POC, around 3-4 screens are required to be developed based on Figma designs we have already ready. Entire project (around 20 Screens) will be outsourced after initial due diligence You will build responsive components, hook them into our existing REST and WebSocket endpoints, implement JWT authentication (including silent refresh), and deliver a fully tested codebase. Pixel-perfect fidelity with the designs, smooth real-t...

I need an Android-based ticketing ecosystem built end-to-end for a public-transport rollout in Mumbai. The core mobile app must allow commuters to create their own user profiles, purchase or recharge tickets, and share trip activity on social channels. Real-time notifications (e.g., low balance, journey start/finish, disruption alerts) are mandatory. Behind the scenes I also need a full Automatic Fare Collection (AFC) stack: • Fare Management Engine that applies zone-based or distance-based pricing in real time. • Secure QR Server to generate and validate dynamic codes both online and offline. • Single-Sign-On so passengers can move seamlessly between mobile, web portal and station devices. • Equipment Management module covering TOM, TVM and ECU terminals—...

My web platform is already live on AWS, powered by a Java/Spring back end and deployed through GitLab CI/CD. The weakest link is the front-end: the screens exist, but several core flows need a fresh look and smoother interactions. Your main mission is to re-design those screens and rebuild them in Angular. I have a design file in Figma; some pieces work, others will need a significant rethink before implementation. Once the new layouts are approved, you’ll code clean, responsive components (Angular 14+, SCSS, Angular Material) and hook them to the existing REST endpoints. Minor tweaks to the Java layer may be required, but the focus is firmly on UI development. Everything lives in GitLab, so your work will move through merge requests and be picked up by our pipeline. The review env...

We’re seeking a skilled React / developer to support and expand several existing web platform projects. The work focuses on improving the frontend experience, building responsive interfaces, integrating APIs, and developing new features across the platform. What you'll work on: Frontend enhancements and UI refinements Responsive and mobile-friendly layouts API integrations and dynamic data handling Feature development and page optimization Performance and usability improvements Required skills: Strong experience with React.js and Solid understanding of responsive web design Experience working with REST APIs Ability to write clean, maintainable, and scalable code Reliable communication and consistent availability Nice to have: Tailwind CSS TypeScript SEO and frontend perf...

I’m ready to push SmartTechHire’s platform forward and I need a skilled engineer who can split focus between a sizeable refresh and a new Web3 layer. The immediate priorities are tightening up our existing codebase, extending our Node.js REST/GraphQL APIs, and weaving in wallet authentication so users can sign in with their preferred crypto wallets. Day-to-day you’ll ship end-to-end features: model the data, expose it through cleanly designed APIs, surface it in React components, and secure the whole flow. Performance, testing, and reliability must stay top-of-mind while you work. Core stack you’ll touch: • Node.js, Express / Serverless functions • React / 13+ (app router) • SQL or NoSQL (your call, as long as schema design is solid) •...

Vision: HITTRO aims to become India’s most reliable, safe, and intelligent intercity ride-sharing platform by combining: • Real-time ride coordination • AI-assisted matching and routing • Strong passenger safety systems • Seamless multilingual user experience • Trust-first community and loyalty mechanics The goal is to launch a production-grade mobility ecosystem that significantly outperforms existing ride-sharing platforms such as BlaBlaCar in: • usability • matching efficiency • safety • speed • reliability • regional accessibility ________________________________________ Project Scope We are looking for an experienced product engineering team with proven expertise in: • Mobility platforms • Ride-hailing systems...

I am looking for a technical collaborator to refine and finalize a high-level publication regarding High-Frequency Trading (HFT) systems developed in Python. The goal is to produce a production-quality open-source repository and a comprehensive technical guide. The scope includes: Low-Latency Architecture: Optimizing Python code for execution speed using libraries like NumPy, Pandas, and Asyncio for concurrent data handling. REST & WebSocket Integration: Detailed examples of robust authentication, order routing, and real-time market data streaming from global exchanges. Risk Management Frameworks: Implementation of automated stop-loss, take-profit, and rate-limit handling to ensure system stability. Backtesting Engine: Developing a module for testing strategies against historical tick ...

I need a straightforward internal app that lets our country managers key in current prices or a price range for every product we sell, then instantly makes those numbers visible to the sales team. The same code-base should compile for iOS, Android and load in any modern browser so nobody is left out in the field. Core workflow • Country Managers log in and enter or edit prices once a week or bi-weekly or as frequently as they like. Leave it flexible • Sales reps open the app and see those figures laid out in a clean, sortable grid. They can flip the time selector to view prices for today, this week, or the last two weeks without downloading a separate report. • No fancy analytics—just fast loading, clear typography and a search bar so a rep can find an SKU in seco...

I am looking for an experienced Senior Full Stack Developer to assist me with a technical skill assessment for a new job opportunity. Tech Stack - React.js - TypeScript - Node.js - PostgreSQL - REST APIs - Modern full stack development practices What I Need - Guidance and support during the technical assessment - Help with architecture, clean code, and best practices - Strong debugging and problem-solving skills - Experience building scalable full stack applications - Ability to explain solutions clearly Preferred Qualifications - Senior-level experience in full stack development - Strong knowledge of React + TypeScript - Backend expertise with Node.js - Database design and PostgreSQL experience - Experience with coding tests or technical interviews Additional Notes - Good communicatio...

Position Details Comapny: Type: Full-time / Part-time Location: 100% Remote Compensation: $195K – $220K Qualifications Strong experience with Solidity and the EVM Ability to architect, implement, and deploy secure smart contracts High attention to detail with a strong sense of ownership Ability to write clean, well-documented code Nice to Have Experience with gRPC / REST API integrations Familiarity with Zero-Knowledge (ZK) concepts and tools (Circom, SnarkJS) Experience with audit tools such as Slither or MythX Ability to read and analyze existing smart contracts Hiring Process Test assignment: practical exercise relevant to the role Technical interview: discussion of your solution and technical approach Final interview: culture fit and expectations Candidates who successfu...

We are seeking a strong Full-Stack React Developer to help build and improve a cloud-based IoT / telematics platform involving connected devices, GPS/location data, mobile applications, dashboards, and real-time telemetry. This role will focus heavily on front-end development while also supporting API integration and backend-related development tasks. Responsibilities include: React / front-end development Dashboard and portal development API integration Data tables, filtering, and reporting tools Real-time telemetry visualization User authentication and permissions General full-stack development support Required Experience: React TypeScript REST APIs Full-stack web application development Strong UI/UX understanding for data-heavy applications Preferred Experience: IoT platforms T...

# Senior Laravel + React AI-Assisted Developer Needed (Cursor AI Expert Preferred) We are looking for a highly skilled Laravel + React developer to help build a completely new enterprise-grade CMS + Page Builder platform from scratch. This is NOT a simple website project. We are building a modern: * Corporate CMS * Dynamic Page Builder * SEO-first Website Platform * Marketing & Lead Management System * Student Application & Dashboard System * Future SaaS-ready architecture --- # Technology Stack Backend: * Laravel 12 * REST APIs * MySQL Frontend Admin: * React * Tailwind CSS * ShadCN UI AI Development Environment: * Cursor Pro * Claude Sonnet * GPT/Codex --- # VERY IMPORTANT REQUIREMENT We are specifically looking for developers who are: # VERY STRONG WITH AI-ASSIST...

Employee Learning Management System (LMS) – Web Application Project Overview We are looking for an experienced PHP/Laravel or Full Stack Developer to develop an Employee Learning Management System (LMS) for internal employee training, onboarding, assessments, and certifications. The system should help organizations manage employee learning and skill development in a centralized platform. Required Modules & Features 1. User Management Employee Login & Authentication Role-Based Access (Admin, Trainer, Employee) Employee Profile Management 2. Admin / HR Panel Manage Employees Assign Training Programs Monitor Employee Progress Generate Reports & Analytics 3. Trainer / Manager Panel Create Training Courses Upload Videos, PDFs, and Documents Create Assessments & Quizzes ...

I am looking for an experienced Senior Full Stack Developer to assist me with a technical skill assessment for a new job opportunity. Tech Stack - React.js - TypeScript - Node.js - PostgreSQL - REST APIs - Modern full stack development practices What I Need - Guidance and support during the technical assessment - Help with architecture, clean code, and best practices - Strong debugging and problem-solving skills - Experience building scalable full stack applications - Ability to explain solutions clearly Preferred Qualifications - Senior-level experience in full stack development - Strong knowledge of React + TypeScript - Backend expertise with Node.js - Database design and PostgreSQL experience - Experience with coding tests or technical interviews Additional Notes - ...

AI Outbound Caller for Construction Contractor — Complete, Integrate, Test & Deploy We have an existing Node.js / TypeScript AI outbound caller project that needs to be proof-checked, completed, connected to live services, debugged, tested, and prepared for deployment. This is for a construction contractor. The system will call prequalified commercial construction leads from HubSpot, speak with builders / estimators / PMs / CAs, identify the correct project contact, request project documents, update HubSpot, create follow-up tasks, and notify the business owner/director when documents are received. This is not a prototype job. We need someone who can complete the full working system. Current Project Includes The existing ZIP already contains: Node.js / TypeScript / Express ...

I need a full-featured mobile application that serves students end-to-end, running smoothly on both Android and iOS. The core experience revolves around interactive lessons, quizzes with automatic scoring, and clear progress tracking so users always see where they stand. Beyond the learning modules, the platform must blend study and career growth in one place. Flash-card style revision, professional badge rewards, résumé upload and profile-building screens all sit alongside an in-app jobs board. A website API will feed the latest news directly into the app, and YouTube videos must embed natively in lesson flows. Real-time connection is critical: one-to-one meetings (video or audio) and private chat need to be built in, giving mentors and students a direct line whenever supp...

I want a concise, hands-on guide that shows me exactly how to wire Claude AI into live trading on Binance, Zerodha, and Hyper Liquid. The goal is to have a small but solid framework I can run this weekend, capable of fully automated trading and rapid order execution. Here’s what the guide must cover: • Exchange integration – authenticated REST/WebSocket connections for all three platforms, plus secure key handling. • Prompt design – how to feed real-time price data into Claude, preserve trading context, and let the model decide when to buy or sell. • Trigger logic – code examples for scheduled, time-based checks and immediate actions when specific market conditions occur. • Order execution – sample functions that submit, confirm, an...

Title: Gen AI Expert Needed for Online Job Support (Weekdays – Remote) Description: We are looking for an experienced professional to provide online job support for a client working on Gen AI-related projects. Requirement Details: Remote online support 5 to 6 hours daily Weekdays only (Monday to Friday) Monthly payout: ₹50,000 Long-term opportunity for the right candidate Preferred Skills: Gen AI / AI application support Python & FastAPI REST APIs & Backend Development Cloud Platforms (GCP preferred) Docker / Kubernetes CI/CD pipelines SaaS & Microservices knowledge Candidate Profile: Looking for someone with strong backend and cloud experience who can assist in development, issue fixing, deployments, and technical guidance during client working hours. Important Te...

I’m ready to roll out Algolia on my e-commerce storefront and need an expert who can take me from zero to a fully functioning, lightning-fast product search. The core of the job is straight search implementation—no legacy migration or complex back-end refactors—just a clean, well-structured Algolia integration. Here’s what matters most to me: • Autocomplete and suggestions that feel instant and relevant. • Robust synonyms and typo tolerance so customers never hit a dead end. You’ll hook into our product feed (JSON via REST) and create an index that updates automatically as inventory changes. I’m comfortable exposing the data layer; you’ll focus on configuring the dashboard, pushing records, setting searchable attributes, and wir...

I’m expanding an enterprise-level web application built on ASP.NET Core MVC (.NET 6) and need a full-stack developer who can move comfortably between C#, Entity Framework Core, and the browser. You’ll own new features end-to-end: modelling data, writing optimized SQL Server queries and stored procedures, exposing REST endpoints, and bringing the interface to life with JavaScript, jQuery, and responsive HTML5/CSS3. Key focus areas • Front-end: solid command of JavaScript, jQuery, modern HTML5/CSS3, and responsive design techniques so screens render cleanly on desktop and mobile. • Back-end: clean C# code, well-structured controllers, and intermediate-level experience creating and consuming REST APIs. • Data: familiarity with Entity Framework Core and the ...

I already have a working prototype on Base44—built with Vite, Supabase, and a lightly-themed Claude/brand UI—but it’s still a developer sandbox. I now need it hardened and extended so my whole company can rely on it every day. Here’s where we stand • Front-end screens match our brand standards and most of the workflow is clearly mapped out. • Code lives in GitHub and builds with Vite. • Supabase is wired up for data storage but only basic tables exist. • A REST API from our management suite is reachable; endpoints are documented but not yet consumed. • Documentation is high-level: you’ll find user journeys, ERDs, and auth flow diagrams, yet many technical edge-cases still need definition. What needs to happen next ...

Title: Gen AI Expert Needed for Online Job Support (Weekdays – Remote) Description: We are looking for an experienced professional to provide online job support for a client working on Gen AI-related projects. Requirement Details: Remote online support 5 to 6 hours daily Weekdays only (Monday to Friday) Monthly payout: ₹50,000 Long-term opportunity for the right candidate Preferred Skills: Gen AI / AI application support Python & FastAPI REST APIs & Backend Development Cloud Platforms (GCP preferred) Docker / Kubernetes CI/CD pipelines SaaS & Microservices knowledge Candidate Profile: Looking for someone with strong backend and cloud experience who can assist in development, issue fixing, deployments, and technical guidance during client working hours. Important T...

Create a standalone AI Platform same as ChatGPT, Gemini, Perplexity platform to run agentic shopping with AI shopping tools including agentic checkout. Build the Commerce Backbone framework along with Multi-Agent Architecture. Embed advance levels of MCP -style commerce protocols, AI-readable catalogs, retailer APIs optimized for agents instead of humans, Explainability Metadata. Advance Commerce Platform Integrations and CRM + Loyalty Integrations. Data storage options. Detailed structure for merchant onboarding and fulfillment orchestration.

I already have the WhatsApp Business API wired into our web-based system, the phone number is fully verified, but every attempt to initiate a chat ends in message-delivery failures. I need someone who knows the Meta Developer Platform inside out to jump in, inspect the current configuration, and get outbound messages flowing without delay. What I expect you to do: • Audit the existing setup (keys, endpoints, webhooks, templates) and spot what is blocking message creation. • Patch the issue so that conversations can be opened and messages delivered reliably from the web platform. • Run a quick proof test with at least one successful outbound message and callback receipt. • Leave me with a short, clear hand-off note or screen recording that shows the working fl...

I’m building FixIt, a mobile marketplace that instantly connects homeowners with vetted plumbers, electricians, carpenters and painters. I want a single code-base solution that ships clean, native experiences on both iOS and Android, so feel free to lean on Flutter, React Native or any comparable cross-platform stack you’re comfortable with. Core features to deliver • User profile creation and editing, including photo upload, service history and payment preferences • A smooth, multi-step booking flow where customers select a service, pick time slots and confirm

 • Real-time chat so users and professionals can coordinate details without leaving the app Smart search and discovery Search must let people filter pros by service type, narrow results by current l...

I’m ready to roll out Algolia on my e-commerce storefront and need an expert who can take me from zero to a fully functioning, lightning-fast product search. The core of the job is straight search implementation—no legacy migration or complex back-end refactors—just a clean, well-structured Algolia integration. Here’s what matters most to me: • Autocomplete and suggestions that feel instant and relevant. • Robust synonyms and typo tolerance so customers never hit a dead end. You’ll hook into our product feed (JSON via REST) and create an index that updates automatically as inventory changes. I’m comfortable exposing the data layer; you’ll focus on configuring the dashboard, pushing records, setting searchable attributes, and wir...

We are hiring a Full-Stack Developer for an Energy-Tech / Grid Integration Platform. We are building a next-generation energy orchestration and market integration platform designed for renewable energy assets, battery systems, industrial flexibility, and grid-balancing participation. The goal is to build a scalable platform capable of supporting: Real-time telemetry and IoT data ingestion Battery and energy asset control Market integration with balancing and settlement systems Multi-tenant customer environments Event-driven energy workflows Automated reporting, scheduling, and compliance flows High-availability infrastructure for critical energy operations The platform will combine: Real-time device communication Cloud-native backend services Market communication and integrations Analytic...

Practice Better Expert Needed (Forms, Packages, Portal Setup, GHL Webhook Integration) Fixed Project · Remote · Immediate Start About the Project We are a digital marketing and conversion systems agency working with a functional health practitioner client. The client already has an existing Practice Better account with Stripe, Evexia Labs, and Fullscript connected. We are looking for someone with real hands-on Practice Better experience to configure the backend, connect it to GoHighLevel using a native webhook, and build the full client delivery experience inside PB. This is a fixed-scope project with a clear deliverable list. We are not looking for ongoing management at this stage. We are specifically looking for someone who understands client journey flow inside Prac...

I have six separate websites that must be polled for current pricing data in near-real time—think updates every few seconds rather than daily or weekly runs. Most of my internal tooling is built around Chrome so I can provide a starting point but your own solution may be more suitable so I am open to any approach you are comfortable with if it meets the timing and reliability goals. The workflow I envision is fully automated: • Each site is scraped continuously or on a tight schedule you configure, capturing only the pricing details I specify per site. • Captured records are pushed immediately to either a RESTful endpoint or an existing message queue; we can decide which option is cleaner once we speak. • Robust error handling, logging, and throttling controls should ...

Dear FirstSpirit Experts, We are currently looking for several FirstSpirit Experts for one of the leading tech companies in Germany. The position is 100% remote and long-term. QUICK FACTS: - Freelancing/Contracting - Start: ASAP - 100% remote - Duration: long-term 12+ months - Capacity: full-time, part-time also possible - Language: English - German business hours REQUIREMENTS: - Experience with FirstSpirit CMS, including development and platform customization. - Knowledge of software architecture in CMS or DXP environments. - Development skills with Java, JavaScript / TypeScript, HTML, and CSS. - Experience with content modeling and headless or hybrid CMS setups. - Familiarity with REST API integrations and connecting FirstSpirit with other systems. - Experience with multi-site / multi...

I’m building a cross-platform e-commerce sports mobile app and need a partner who is equally comfortable crafting polished UI/UX in Figma and wiring those screens to live APIs. The goal is one cohesive experience that feels native on both iOS and Android. First we’ll collaborate on user flows, then you’ll translate them into high-fidelity Figma frames and an interactive prototype I can test on device. Once the look and feel are approved, I’d like you to turn the designs into working code, connect every screen to our REST/GraphQL endpoints, and make sure checkout, product catalog, and account areas run smoothly and securely. Deliverables 1. Complete Figma file with design system, all screens, and a clickable prototype. 2. Source code for both platforms with API c...

Our Kingdee Cosmic instance needs targeted enhancements so the supply-chain modules truly match daily operations. Priority areas are sales and logistics processes as well as the approval workflows and management reports that keep them moving. Experience in Kingdee is a must. You will extend and refine the system through workflow configuration, form customization, and report customization, using the standard Kingdee BOS and PaaS tool-set. Clean, well-documented API integration is also required so external platforms can tap into orders, inventory status, and shipment data in real time. Essential scope: • Analyse current sales, dispatch, and logistics steps, then map them into streamlined Kingdee workflows with clear approval gates. • Create or modify forms and list views so front...

I’ve built a scenario that ties several third-party APIs together, but certain API modules keep failing and the run stops short. I’m looking for someone who knows Make inside out to step in, inspect the existing blueprint, and eliminate these issues so the automation runs end-to-end without errors. Here’s what I need from you: • Review every API module in the scenario, trace where requests or responses are breaking, and explain why. • Apply fixes or refactors directly in Make—adjusting module settings, authentication, data mapping, filters, or error handlers as required. • Validate the scenario with test data until it completes successfully across multiple runs. • Document the corrections so I can understand what was changed and why. Y...

Build a production-ready P2P property platform from scratch. What You'll Build - Auth flow: signup, login, email confirm, password reset - Property listings with form validation + image upload - Q&A system: buyers ask, investors answer - Offer engine: submit, accept, decline, counter - Investor dashboard: KPIs, questions, offers (side-by-side) - Admin panel: approvals, user management, alerts - Branded email workflows - Native mobile app (iOS + Android) with feature parity Tech Stack (Preferred) - Backend: Node.js + Express, SQLite/Postgres, REST API, JWT auth - Web: 14 + React + TypeScript + Tailwind - Mobile: React Native (or Flutter) - DevOps: Docker, PM2, Traefik + SSL, basic CI/CD You Are - 3+ years building production web + mobile apps - Strong ...

I use Stripe Checkout links to sell monthly subscriptions and I run my AI video service through the Runway ML API. What I need is a small, secure webhook that listens to Stripe events, recognises the subscription tier a customer just paid for, and immediately calls the Runway ML REST endpoint to top up that customer’s usage. The flow should handle multiple subscription tiers (Basic, Pro, etc.), mapping each tier to a different credit amount in Runway ML. On a successful payment— or —the webhook must: • validate the Stripe signature • read the product / price ID to identify the tier • post the correct credit to Runway ML via its REST API • log the action to prevent double-crediting and for later auditing • return a 200 response so Stripe ...

I run a waste-management company and I am ready to digitise the entire workflow—from the moment scrap is booked for pickup at a client’s site to its arrival at the recycling facility. The project calls for a full stack web developer who can produce a single code-base solution that serves both desktop (Windows) and mobile users (iOS and Android). Core workflow The software must let my staff and clients schedule pickups, monitor every consignment in real time, and manage client information in one place. Live tracking should show a vehicle’s location, load status and estimated arrival so that both the client and our dispatch team stay informed. A CRM layer is needed for contact histories, pricing tiers, quotation, invoicing, RFQ etc. Platform expectations • Deskto...

I need a production-ready crypto exchange site that lets users trade on a live spot market with Bitcoin, Ethereum, Ripple and USDT from day one, with the option to add more pairs later. Real-time order books, depth charts, trade history and WebSocket price feeds should feel as fast as the major exchanges. Security is the main priority. The build must ship with strong account protection (2FA, email/SMS verification), cold-wallet segregation for the majority of funds, hot-wallet limits, and an architecture that can absorb DDoS spikes without downtime. Please plan for regular penetration testing and clear audit logs. A clean React (or Vue) front-end talking to a Node.js, Go or comparable back-end is preferred, but I’m open to other proven stacks if you can demonstrate equal or better ...

I’m ready to turn my working title “GoGogogogogp” into a fully-featured Android application. The project is strictly app development—no web or iOS work for now—so I need someone who can take the idea from blank screen to a polished release on Google Play. Here’s what the engagement will look like: • Collaborate with me to refine the feature set, then translate it into a clean, modern Android interface. • Build the app natively in Kotlin or Java inside Android Studio, following Material Design best practices for performance and accessibility. • Connect any required back-end services (Firebase, REST API, or a solution you recommend) and implement secure local data storage. • Run thorough functional and usability tests, fix bugs,...

I’m building an AI-driven personal-assistant chatbot that runs on a Node.js + Express backend with MongoDB for persistence and Groq’s API for the language layer. The goal is to give users a fast, intelligent helper that works seamlessly on both web and mobile screens. Scope of work • Architect or refine the RESTful endpoints that receive user questions, forward them to Groq, and stream answers back in real time. • Create (or polish) a responsive web interface and a companion mobile experience so the conversation feels native on any device. • Persist every message, plus metadata needed for analytics, inside MongoDB and expose a history endpoint that can be filtered by user and date. • Build two key features into the assistant itself: – Task...

Our ServiceNow instance handles the full ITSM ticket load—incidents, changes, service requests, essentially every standard IT ticket we raise. Today many of those steps are still manual, scattered across e-mails and ad-hoc approvals. I need those repetitive touches removed and replaced with robust, auditable automation built directly in ServiceNow. Scope of work • Build advanced, rules-driven workflows for Incident, Change and Service Request management using Flow Designer (or the legacy Workflow Editor where it still makes sense). • Orchestrate cross-module hand-offs so a single ticket can trigger follow-on tasks or child records automatically—no swivel-chairing across modules. • Leverage IntegrationHub and REST/Scripted APIs where outside data or externa...