MongoDB Specialists For Hire
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Hire shrec
Hi, I want to start by saying thank you for taking the time to read through my profile. I am an IT and Computer Science Specialist with over 15 years of experience in the industry. I have a genuine passion for my work, and love being able to use that passion to create original, creative projects for my clients. I...Hi, I want to start by saying thank you for taking the time to read through my profile. I am an IT and Computer Science Specialist with over 15 years of experience in the industry. I have a genuine passion for my work, and love being able to use that passion to create original, creative projects for my clients. I can work with a large list of different software and coding languages, including: • HTML • CSS • Javascript • Jquery • Front-End Frameworks (Bootstrap, Google's Material Design) • Javascript Frameworks (Angular, React, Vue) • Preprocessors (Less, Sass) • Building Tools (Gulp, Webpack, Grunt) In terms of Mobile Development, I can create projects using the following: • Java • Kotlin • Swift • Object-C • Android/iOS • Ionic Framework • React Native • Dart/Flutter I’ll happily sit down and work with you to build the best possible plan of attack to create and perfect your vision! less -
Hire logWeb
Freelancer software engineer and Information System Engineer with a passion for crafting innovative solutions. With +10 years of experience in the industry, I have developed a strong skill set in mobile app development, blockchain, microservices, unit testing, object-oriented programming, functional programming, web...Freelancer software engineer and Information System Engineer with a passion for crafting innovative solutions. With +10 years of experience in the industry, I have developed a strong skill set in mobile app development, blockchain, microservices, unit testing, object-oriented programming, functional programming, web development, and database management. My core skills: * BlockChain: Rust, Solidity, Smart Contracts, Trading Bot. * Mobile development: React Native, Flutter. * Front-end: HTML, CSS, JavaScript, React, jQuery. * Back-end: PHP (Laravel), Node.js, Rest, Kotlin, Solidity, Typescript. * Database: MySQL, PostgreSQL, MongoDB, Redis, Firebase. * Design Patterns, TDD/BDD/Junit/Mocking. * GitHub, GitLab, BitBucket, Jenkins, Docker, Kubernetes. I take a proactive and detail-oriented approach to problem-solving. I enjoy diving into complex challenges and finding elegant solutions. I believe in thorough planning, efficient coding practices, and continuous testing to ensure the highest quality deliverables. I value effective communication and collaboration. I believe in fostering strong client relationships by actively listening to their needs, providing regular project updates, and seeking feedback throughout the development process. I am adept at working independently as well as being a valuable team member when required. If you're looking for a skilled and reliable software engineer to bring your ideas to life, I would be thrilled to discuss your project further. I look forward to the opportunity to work together! less -
Hire Herculesz
Principal / Head AI Engineer with 25+ years of experience architecting and scaling complex software systems, now specializing in Large Language Models (LLMs), agentic workflows, and AI-first product development. Proven expertise in integrating OpenAI APIs, building RAG pipelines, and deploying scalable,...Principal / Head AI Engineer with 25+ years of experience architecting and scaling complex software systems, now specializing in Large Language Models (LLMs), agentic workflows, and AI-first product development. Proven expertise in integrating OpenAI APIs, building RAG pipelines, and deploying scalable, production-grade LLM features using LangChain, pgvector, Pinecone, and related technologies. Hands-on leader with a track record of transforming business workflows through intelligent systems—semantic search, AI copilots, and conversational agents—while maintaining rigorous engineering standards across DevOps, observability, and frontend/backend architecture. Deep experience in embedding optimization, prompt engineering, fine-tuning GPT models, and delivering generative AI(GenAI) products that drive measurable impact. Skilled in mentoring engineers, leading cross-functional AI initiatives, and aligning technical strategy with executive goals in fast-paced, innovation-driven environments. Passionate about building the next generation of human-centered AI systems. less -
Hire chima25
"We're very happy with Chima's work, and we're ending this project but still keeping him on our payroll." Those were the words of a happy client in the travel industry after I built an AI-powered travel booking web application. And he's continued to hire me over and over again. Now to you who're reading right..."We're very happy with Chima's work, and we're ending this project but still keeping him on our payroll." Those were the words of a happy client in the travel industry after I built an AI-powered travel booking web application. And he's continued to hire me over and over again. Now to you who're reading right now.. Clients come here when: - they want to build something AI-powered - their product needs to feel smarter. - their search is broken, - or their booking flow leaks users, And they need it built clean. That's the exact gap that gets closed here: Web applications that don't just render, but think and respond. AI woven into search, booking flows, discovery engines, and product logic. That's what I build for companies & businesses where UX directly moves revenue. WHAT I BUILD: 🔍Intent-aware search. Not just keywords. Hybrid pipelines (BM25 + vectors + re-ranking) that surface what users mean. ⚡ AI in live systems: booking flows, real APIs, real inventory. Not demos. Not wrappers around ChatGPT. 🏗️ Frontend architecture that scales: Next.js, TypeScript, component systems built to last. 🌍 Proven in production: currently shipping for a luxury travel group (Sweden/Spain) across trip discovery, cruise search & multi-destination booking. 🏠 Strong fit for: Luxury Travel · Real Estate · E-commerce · SaaS tools where search or AI interaction drives conversions. HOW I WORK: - Every project starts from the user problem, not the tech stack. - Whether it is semantic search, a vector database integration, or a streaming AI interface, the goal is always the same: fewer clicks, faster answers, higher conversions. SERVICES - AI integration into existing frontends. - RAG (Retrieval Augmented Generation) pipeline development. - AI-powered search & natural language search UX. - Next.js application development. - API integration. - Vercel AI SDK implementation. - Prompt engineering for product features. MY CORE FRONTEND SKILLS: - Next.js / React (React Hooks, App Router, Server Components, Server Actions) - TypeScript / JavaScript - Tailwind CSS3, SaSS, SCSS, HTML5, Responsive Design - Framer Motion - Radix UI, Shadcn/UI - React Hook Form, Zod, class-variance-authority - Web Performance, Core Web Vitals CORE AI ENGINEERING SKILLS - AI Integration - Vercel AI SDK - RAG (Retrieval-Augmented Generation) - Vector Database / Pinecone - Vector Search / Semantic Search - OpenAI API / ChatGPT Integration - Google Gemini - LLM Integration - AI Chatbot - Conversational AI: BM25 Hybrid, Search Embeddings, Text Embeddings. - Prompt Engineering, - AI-Powered Search, - Reranking / Reciprocal Rank Fusion. - Chunking - Intent Detection. - Natural Language Search. - AI Search UX / Tool Calling / Function Calling TOOLS & WORKFLOW - Git / GitHub - npm / pnpm - ESLint / Prettier - CI/CD Vercel Deployment - Google Maps API - Claude Code If your users deserve a smarter experience, Then do one thing: click the top-right green button, and LET'S BEGIN! Chima less -
Hire gotucat
SYMLINK TECHNOLOGIES LLP is a modern full-stack development company specializing in AI-powered SaaS platforms, custom web applications, mobile app development, eCommerce solutions, and scalable cloud infrastructure. With 12+ years of experience, we help startups, SMEs, and enterprises turn ideas into high-performance...SYMLINK TECHNOLOGIES LLP is a modern full-stack development company specializing in AI-powered SaaS platforms, custom web applications, mobile app development, eCommerce solutions, and scalable cloud infrastructure. With 12+ years of experience, we help startups, SMEs, and enterprises turn ideas into high-performance digital products. We combine strong engineering with modern technologies to build secure, scalable, and user-friendly solutions. Our expertise includes: AI-powered SaaS application development Custom web application development Cross-platform mobile app development with Flutter and React Native eCommerce development with Magento, WooCommerce, and Shopify Backend systems, APIs, and third-party integrations Cloud, DevOps, and Linux server management Technology stack: Frontend: React.js, Next.js, Angular, Bootstrap Backend: Node.js, Laravel, PHP, Express.js Mobile: Flutter, React Native, Ionic AI & Automation: OpenAI integrations, AI chatbots, workflow automation, smart business tools CMS / eCommerce: WordPress, Joomla, Magento, Shopify DevOps / Cloud: Docker, NGINX, cPanel, Linux servers Why clients choose us: 12+ years of real-world development experience Modern, scalable, and secure solutions Clear communication and fast response Clean code and reliable project delivery Long-term support and technical partnership Whether you need an AI SaaS platform, a Flutter mobile app, a custom web solution, or complete full-stack development support, we are ready to build solutions that help your business grow. less -
Hire REPLATechnology
REPLATechnology REPLATechnology
$30 USD / hour
Top Rated Verified & Confirmed By Freelancer.comPakistanHello, Thank's for taking the time to visit my profile. I’m a Full-stack Experienced Software & Mobile App developer with 10 years of industry experience / Blockchain, Mobile app & Software Development with over 10 years of experience operating as a high-end professional in the Blockchain & Software Industry. My...Hello, Thank's for taking the time to visit my profile. I’m a Full-stack Experienced Software & Mobile App developer with 10 years of industry experience / Blockchain, Mobile app & Software Development with over 10 years of experience operating as a high-end professional in the Blockchain & Software Industry. My clients consistently receive polished work in a timely manner with constant communications and updates. I offer a number of services through my expertise: ● ✔ BlockChain Development ● ✔ NFT Development ● ✔ Software Development ● ✔ Web App Development ● ✔ Artificial intelligence Projects ● ✔ Mobile App Development (IOS & Android) ● ✔ Website Development ● ✔ Application Design (UI / UX) ● ✔ Figma / XD ● ✔ Website Design ● ✔ Brand Identity Design My portfolio is chock full of these design elements, and I highly suggest you peruse it to better understand my style, work & vision. Along with a team of 18 professional developers who aide me in my design, I hold my skills in high regard & would love to use them to help you create a Best Product for your business. shoot me a message! I’m available through Freelancer & will respond ASAP so that we can break down your needs and decide exactly how we will tackle them. Thanks, & have a great day, Regards less -
Hire salmanshahid5432
salmanshahid5432 salmanshahid5432
$15 USD / hour
Full Stack Developer Who Builds What ShipsPakistanI have helped founders ship 60+ products. Some are now doing $80k+ MRR. Let's talk about yours. I have been building full stack products for 4 years web apps, mobile, and AI integrations. I do not just write code. I think about your product's growth, your users experience, and your team's ability to maintain what gets...I have helped founders ship 60+ products. Some are now doing $80k+ MRR. Let's talk about yours. I have been building full stack products for 4 years web apps, mobile, and AI integrations. I do not just write code. I think about your product's growth, your users experience, and your team's ability to maintain what gets built. If something is not feasible, I will tell you before you spend a dollar on it and I back that with a 100% refund guarantee if I ever set wrong expectations 𝐌𝐲 𝐒𝐭𝐚𝐭𝐬: 🌟 5 star review streak across all projects 💯 100% Job Success Score on time, on budget 💰 Helped startups reach $80k+ MRR 💸 $50k+ earned across platforms 🏅 4+ years of full stack experience 𝐌𝐲 𝐓𝐨𝐨𝐥𝐤𝐢𝐭: ◾ 𝐅𝐫𝐨𝐧𝐭𝐞𝐧𝐝: React.js, Next.js, Vue.js, TypeScript, Tailwind CSS, Sass/SCSS, Framer, Web Animations, Progressive Web Apps ◾𝐁𝐚𝐜𝐤𝐞𝐧𝐝: Node.js, Express.js, Nest.js, Laravel, Python, REST & GraphQL APIs, MERN Stack ◾ 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞𝐬: MongoDB, MySQL, PostgreSQL, NoSQL, API Integration, CMS platforms ◾ 𝐀𝐈 & 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧: LLMs, AI Agents, Generative AI, LLM Integration, Prompt Engineering, NLP, OpenAI APIs, Workflow Automation ◾ 𝐌𝐨𝐛𝐢𝐥𝐞: React Native, Android SDK, Kotlin, Java 𝐖𝐡𝐚𝐭 𝐘𝐨𝐮 𝐰𝐢𝐥𝐥 𝐆𝐞𝐭 𝐖𝐨𝐫𝐤𝐢𝐧𝐠 𝐖𝐢𝐭𝐡 𝐌𝐞: ◾ Responses under 30 minutes unless I am asleep ◾ Code that your future self can actually read and maintain ◾ A straight "no" when something won't work no runaround, no wasted time ◾ A product built around your users, not just your requirements doc 𝐌𝐲 𝐂𝐥𝐢𝐞𝐧𝐭𝐬 𝐒𝐚𝐲: ◾ "Salman is an amazing contractor, bringing a wealth of talent, intelligence, and experience to our team. His communication was superb, and he delivered code of excellent quality." ◾ "Excellent knowledge, willingness to share, and the ability to simplify complex topics." 𝐀𝐛𝐨𝐮𝐭 𝐌𝐞: I hve been building full stack products for 4 years first in house, then independently. Going freelance was not a fallback it was a deliberate move to work closer with founders and actually care about what ships. I have worked across early MVPs, mid stage SaaS builds, and complex AI integrations. I take on fewer projects so I can do each one properly 𝐖𝐞 𝐂𝐚𝐧 𝐁𝐞 𝐀 𝐆𝐨𝐨𝐝 𝐌𝐚𝐭𝐜𝐡 𝐈𝐟: ✅ You need someone who can jump in and contribute from day one ✅ You are building a SaaS, web app, mobile app, or AI powered product ✅ You want AI agents, LLM features, or automation baked into your stack ✅ You are looking for a partner wh will push back when something is not the right call ✅ You need a Chrome extension, web automation tool, or productivity layer on top of an existing app 𝐖𝐞 𝐌𝐢𝐠𝐡𝐭 𝐍𝐨𝐭 𝐁𝐞 𝐀 𝐆𝐨𝐨𝐝 𝐅𝐢𝐭 𝐈𝐟: ❌ You want someone to just execute without any input or questions ❌ Mutual respect isn't something you value ❌ Your product is in the betting or adult entertainment space less -
Hire SmartCodeDev
SmartCodeDev SmartCodeDev
$20 USD / hour
Web & Mobile & AI & Windows App & Devops EngineerTanzania, United Republic ofA passionate and results-driven Senior Software Engineer with over 8 years of experience in Full-Stack Web Development, Android App Development, and Artificial Intelligence (AI). Adept at building dynamic, high-performance applications and delivering secure, scalable solutions. Known for combining technical expertise...A passionate and results-driven Senior Software Engineer with over 8 years of experience in Full-Stack Web Development, Android App Development, and Artificial Intelligence (AI). Adept at building dynamic, high-performance applications and delivering secure, scalable solutions. Known for combining technical expertise with strong problem-solving and leadership skills to consistently meet and exceed project goals. Highly experienced in agile development environments, proficient in managing the entire software development lifecycle — from concept and architecture to deployment and maintenance. Skilled in cloud infrastructure, system administration, and DevOps practices, ensuring optimized performance, security, and reliability. Core Skills Full-Stack Development Languages: JavaScript, TypeScript, HTML5, CSS3, SQL, PHP, C#, C++, Go, Rust Frameworks & Libraries: React, Next.js, Node.js, Express.js, Django, Angular, Vue.js, Tailwind CSS, Bootstrap Databases: MongoDB, MySQL, PostgreSQL, Redis APIs: RESTful APIs, GraphQL, WebSockets Cloud & DevOps: AWS (EC2, S3, Lambda, RDS), Google Cloud Platform, Azure, Docker, Kubernetes, Jenkins, CI/CD Pipelines Testing & Quality: Jest, Cypress, Mocha, Chai Android & Mobile Development Languages: Kotlin, Java, Dart, Swift, Objective-C Frameworks & Libraries: Android SDK, Jetpack Compose, Firebase, SQLite, Room, Flutter, React Native Tools & IDEs: Android Studio, Gradle, Git Artificial Intelligence (AI) Development Languages: Python, R, Julia, MATLAB, JavaScript Tools & Libraries: TensorFlow, PyTorch, Keras, OpenCV, Scikit-learn, Hugging Face Transformers Expertise: Natural Language Processing (NLP), Computer Vision, Neural Networks, Data Analysis, Generative AI (Stable Diffusion, OpenAI API, LLaMA) Network & System Administration Expertise: Network configuration & troubleshooting, security protocols, server management, firewall setup, remote access tools Operating Systems: Linux (Ubuntu, CentOS), Windows Server Additional Skills: Shell scripting (Bash), PowerShell, performance optimization, server hardening, SSL/TLS setup Additional Professional Skills Agile & Scrum Methodologies API Integration (Payment Gateways, OAuth2, Third-Party APIs) UI/UX Optimization Performance & Scalability Engineering Key Strengths Proven ability to design and deliver end-to-end solutions for web, mobile, and AI platforms. Strong project management and leadership skills, capable of guiding teams to meet deadlines without compromising quality. Deep expertise in optimizing application performance and ensuring high system reliability. Committed to continuous learning and staying at the forefront of emerging technologies. less -
Hire Smart1902
I have 12+ years of experience in Mobile (iOS/Android/Flutter/React/Xamarin/Kotlin) app development and Web development(PHP, Laravel, .NET, JAVA, Springboot, MERN Stack, Node JS, Nest JS, Express JS, Angular, ReactJs, Next JS). I have already developed and published 182+ mobile apps to the mobile market. My...I have 12+ years of experience in Mobile (iOS/Android/Flutter/React/Xamarin/Kotlin) app development and Web development(PHP, Laravel, .NET, JAVA, Springboot, MERN Stack, Node JS, Nest JS, Express JS, Angular, ReactJs, Next JS). I have already developed and published 182+ mobile apps to the mobile market. My Skills. -Flutter apps using Dart -iOS / iPhone mobile apps using Objective-C & Swift , SwiftUI -Android mobile apps using Android Studio, Eclipse and Android Jni (Call logs, location tracking in background) -React Native apps using React js -Website development using MERN, ReactJS, NodeJS, PHP, LARAVEL, .NET,JAVA, Springboot, Hibernate -Xamarin using Xaml, Visual Studio , C# -Apple watch apps using Objective-C & Swift , SwiftUI -APNS and in-app purchase -JSON parsing, soap response and web service -Apple/google Play store submission -Source control(bitbucket, Github, Gitlab, Git) -Google map api, in-app billing, Facebook api, twitter api, fabric, Twilio -Facebook/Twitter/Linkedin/Instagram/youtube apis -Rest web services -push notification, ftp server -audio/vido streaming -Trello, jira, slack less -
Hire letscms
👋 Welcome! I’m a Senior Full-Stack Developer with 14+ years of experience building scalable, secure, and high-performing applications. With 62 successful projects delivered on Freelancer, I’ve helped startups and enterprises worldwide launch solutions in eCommerce, MLM, live streaming, and AI-driven platforms. 💡...👋 Welcome! I’m a Senior Full-Stack Developer with 14+ years of experience building scalable, secure, and high-performing applications. With 62 successful projects delivered on Freelancer, I’ve helped startups and enterprises worldwide launch solutions in eCommerce, MLM, live streaming, and AI-driven platforms. 💡 What I Offer ✅ Custom Web & Mobile Apps – Laravel, React, Node.js, Flutter, Kotlin ✅ Live Streaming Platforms – apps like Tiki, Tango, TikTalk ✅ WordPress & WooCommerce – custom plugins, themes, eCommerce stores, MLM solutions ✅ Magento & Drupal – extension & theme customization, bug fixing, speed optimization ✅ AI & Python Solutions – Flask, TensorFlow, OCR, automation, data-driven tools ✅ Industries Served ✅ eCommerce & Retail – online stores, marketplaces, custom plugins ✅ Network Marketing (MLM) – smart commission systems, plugins, extensions ✅ Media & Entertainment – live streaming apps, video platforms ✅ Enterprise Solutions – dashboards, workflow automation, data platforms ✅ AI & Data Applications – OCR, predictive analytics, image processing ✅ Tech Stack Shopify Development Expertise ✅ Shopify Custom App Development (Private & Public Apps) ✅ Shopify Theme Development & Customization ✅ Shopify Liquid Programming Languages & Frameworks ✅ PHP (Laravel, YII) ✅ JavaScript (React, Node.js, Angular, Vite.js) ✅ Python (Flask, TensorFlow, Pandas, OpenCV) ✅ Flutter, Kotlin Frontend & Design ✅ HTML5 ✅ CSS3/5 ✅ Tailwind ✅ Responsive UI CMS & eCommerce ✅ WordPress (Plugins, Themes, WooCommerce, WPML, BuddyPress) ✅ Magento (Extensions, Themes) ✅ Drupal (Modules, Themes) Databases & Tools ✅ MySQL ✅ PostgreSQL ✅ MongoDB ✅ Git ✅ Docker ✅ REST APIs ✅ GraphQL ✅ Why Clients Choose Me ✅ 62 completed projects on Freelancer with proven client satisfaction ✅ Pixel-perfect design & clean, well-documented code ✅ Free 1-month maintenance after delivery ✅ Issues resolved within 24 hours max ✅ Strong English communication & dedicated 24/7 support ✅ 14+ years of expertise delivering reliable solutions ✅ Let’s Build Together Whether you need a robust backend, a modern frontend, or a smart AI-powered platform, I bring the skills, experience, and commitment to make your vision a reality. 💬 Message me today — let’s create something impactful that grows your business! less
