RAG Developers For Hire
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Sponsored Freelancers
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Hire bcosley
Let's build scalable products that create real impact. Over 15 years of experience building, training, and deploying Data Science, Machine Learning, and AI models, as well as developing production-grade applications. I have helped clients unlock real business value from advanced data and analytics across healthcare,...Let's build scalable products that create real impact. Over 15 years of experience building, training, and deploying Data Science, Machine Learning, and AI models, as well as developing production-grade applications. I have helped clients unlock real business value from advanced data and analytics across healthcare, software, sales, marketing, and retail. In addition to AI/ML, I bring extensive full-stack web and mobile development expertise. I have been building modern web applications for over a decade and am highly proficient with today’s frameworks, architectures, and best practices. From backend systems to polished user experiences, I can design and deliver complete, scalable solutions end-to-end. less -
Hire kolevk
Senior Full Stack AI Developer with 8+ years of software engineering experience building web applications, e-commerce platforms, backend systems, and AI-powered products. Strong across the full software development lifecycle, including architecture, development, integrations, deployment, and DevOps. Experienced with...Senior Full Stack AI Developer with 8+ years of software engineering experience building web applications, e-commerce platforms, backend systems, and AI-powered products. Strong across the full software development lifecycle, including architecture, development, integrations, deployment, and DevOps. Experienced with React, TypeScript, JavaScript, Node.js, PHP, .NET, C#, Shopify, MongoDB, SQL, and REST APIs. Skilled in building custom Shopify solutions, themes, API integrations, e-commerce functionality, and scalable database-driven applications. Experienced in integrating AI into production applications using Python, FastAPI, LLM APIs, RAG, NLP, AI agents, embeddings, vector databases, LangChain, OpenAI, Anthropic, Gemini, and n8n. Strong experience with Docker, CI/CD, cloud platforms, Linux, and production deployments. Able to take projects from requirements and system design through development, AI integration, deployment, and ongoing improvement. less -
Hire elvirt
Senior full-stack dev (React Native/Flutter + Shopify + AI). I build cross-platform mobile apps, custom Shopify solutions, and embed intelligent features like recommendations, search, and chatbots. Strong communicator, accurate estimator, and team mentor. Let's build something great. AI | Python | Mobile | Java |...Senior full-stack dev (React Native/Flutter + Shopify + AI). I build cross-platform mobile apps, custom Shopify solutions, and embed intelligent features like recommendations, search, and chatbots. Strong communicator, accurate estimator, and team mentor. Let's build something great. AI | Python | Mobile | Java | Javascript | Typescript | Node | React | Rest API | AWS | C | C++ | C# | Shopify | Fitness | PHP | Unity ........ less -
Hire miguelml87
I help startups and businesses build scalable, secure, and high-performance applications. With over a decade of software engineering experience, I've worked on everything from MVPs for startups to large-scale enterprise systems handling millions of users and transactions. I believe in writing clean, maintainable code...I help startups and businesses build scalable, secure, and high-performance applications. With over a decade of software engineering experience, I've worked on everything from MVPs for startups to large-scale enterprise systems handling millions of users and transactions. I believe in writing clean, maintainable code while keeping business goals at the center of every decision. My goal is simple: deliver software that works, scales, and creates value for your business. less -
Hire tonyc00
Hello, I am a full-stack developer with extensive DevOps experience, particularly in designing scalable systems using Kubernetes, Azure, and AWS. I also have expertise in AI/ML engineering and deliver high-quality, production-ready solutions. With over 5 years of experience, I’ve worked on everything from Generative...Hello, I am a full-stack developer with extensive DevOps experience, particularly in designing scalable systems using Kubernetes, Azure, and AWS. I also have expertise in AI/ML engineering and deliver high-quality, production-ready solutions. With over 5 years of experience, I’ve worked on everything from Generative AI to business analytics and automation, helping organizations turn complex data into meaningful, actionable insights. I love building scalable, real-world AI solutions—whether it’s improving recommendations, automating workflows, or pushing the boundaries of LLMs and RAG-based AI systems. My expertise spans LangChain, Python automation, advanced machine learning techniques, and cloud-based AI solutions using Azure OpenAI and Azure AI/ML. I have hands-on experience deploying AI models on Azure, optimizing LLM applications, and integrating AI into enterprise systems for enhanced scalability and performance. My Expertise -AI/ML : Large Language Model, NLP, RAG, PyTorch, Deep learning, MLOps, LLaMA, AI Agent Development, OpenAI API, AI App Development, LangChain, AI Chatbot, Azure OpenAI, Azure AI/ML -Data Engineering: Python, R, Numpy, Pandas, GeoPandas, Linear Algebra, Probability, Statistics, Databricks, Microsoft Power BI, snowflake, Big Data Processing, Azure Data Factory, Azure Synapse, Azure SQL, Azure AI Search -Programming Languages: JavaScript/TypeScript, Python, R, C#, C++, PHP -Frontend: HTML5, CSS3, React.js, Next.js, Angular11, Tailwind CSS, Antd, PrimeReact, ShadCN, TanStack, Redux, zustand, Context API, RSuite -Backend: Node, Express, Django, Flask, .NET Core, ASP.NET, Laravel, Firebase, Superbase, Docker, Kubenetes -Database: SQLite, MySQL, MariaDB, PostgreSQL, MongoDB, Redis,Oracle -Cloud: AWS (EC2, S3, Lambda, Elasticsearch, Sagemaker), Azure(Logic App, APIM, Function App, Blob Storage, Azure SQL, Virtual Network, Azure CosmosDB, Azure DevOps, CI/CD,Azure AI Search, Azure CLI, PowerShell, Terraform, Azure Portal) Beyond the tech, I thrive on solving tough problems, collaborating with brilliant minds, and creating AI-driven solutions that actually make an impact. If you’re working on something exciting in AI, let’s connect—I’m always up for an interesting challenge! less -
Hire AhmedHashimPro
Software architect with 11 years of building and running cloud, backend and mobile systems in production. For the last three years I've been the founding engineer at DroneLeaf, a UAE drone-fleet platform, where I own the AWS architecture end to end: the serverless backend, real-time IoT, the on-device software and the...Software architect with 11 years of building and running cloud, backend and mobile systems in production. For the last three years I've been the founding engineer at DroneLeaf, a UAE drone-fleet platform, where I own the AWS architecture end to end: the serverless backend, real-time IoT, the on-device software and the release pipeline. What I can build or fix for you: • AWS serverless backends: Lambda, AppSync/GraphQL, DynamoDB, Cognito, API Gateway, Amplify, CloudFormation/CDK • Architecture reviews, cloud migrations, and reliability or cost fixes • IoT and real-time systems: AWS IoT Core fleet provisioning, MQTT, WebSockets, WebRTC • Node.js/TypeScript and Python APIs with multi-tenant auth, RBAC and Stripe billing • Angular/Ionic apps for web, mobile and desktop, plus native Android (Kotlin, Jetpack Compose) • CI/CD: GitHub Actions with OIDC, multi-arch Docker builds, Debian packaging for embedded Linux • AI features: LLM integration, RAG, MCP servers, multi-provider LLM routing Recent work: • Moved a live production platform from AWS Bahrain to Frankfurt with minimal downtime (S3 replication, ECR migration, DynamoDB Global Tables). That replication setup is now its disaster-recovery base. • Designed a role-based authorization platform used by 8 Lambdas and the client app, dark-launched behind CI gates and Playwright tests. • Fixed an MQTT subscription bug that took subscribe failures on an 83-device tenant from 1,828 to 0. • Built My Stream alone: an AI publishing platform running on 7 LLM providers, with Stripe billing. • Published Online Quran, an Android app that has been live on Google Play for years. I also keep public, tested code on GitHub: a graph database written from scratch, an MCP server for safe LLM database access, and an LLM routing library. I work async across time zones (GMT+3), write clearly in English and Arabic, and document what I ship so your team can run it after me. Send me what you're working on. less -
Hire manuelm1ia
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Hire zacheryr4
I am responsible for managing small IT teams, overseeing their operations and ensuring project success. I thrive in dynamic environments where problem-solving and innovation are key. Taking on challenges motivates me and drives your professional growth.I am responsible for managing small IT teams, overseeing their operations and ensuring project success. I thrive in dynamic environments where problem-solving and innovation are key. Taking on challenges motivates me and drives your professional growth. less -
Hire adams436
I’m a Senior AI & Full-Stack Developer specializing in building scalable web applications, AI-powered solutions, and high-performance digital products. With strong expertise in modern frontend and backend technologies, I develop complete solutions using Next.js, React, TypeScript, JavaScript, Laravel, PHP, WordPress,...I’m a Senior AI & Full-Stack Developer specializing in building scalable web applications, AI-powered solutions, and high-performance digital products. With strong expertise in modern frontend and backend technologies, I develop complete solutions using Next.js, React, TypeScript, JavaScript, Laravel, PHP, WordPress, and Shopify. My experience includes: • AI-powered applications and automation solutions • Full-stack web application development • SaaS platforms and business systems • Custom WordPress websites and Shopify eCommerce stores • REST API development and third-party integrations • Responsive UI/UX implementation • Database design and backend architecture I have worked on projects across industries including AI, healthcare, fintech, blockchain, eCommerce, education, and SaaS platforms. My approach focuses on clean architecture, reliable performance, intuitive user experiences, and delivering solutions that help businesses grow. Core Technologies: - AI Integration & Automation - Next.js / React / TypeScript - JavaScript / HTML / CSS - Laravel / PHP - WordPress / Shopify - API Development - Database Design - Cloud & Deployment 𝐖𝐇𝐀𝐓 𝐘𝐎𝐔 𝐆𝐄𝐓 ✅ Senior full stack ownership ✅ Production focused AI integration ✅ Clean and scalable architecture ✅ Strong API and database engineering ✅ SaaS authentication and billing experience ✅ Reliable cloud deployment ✅ Clear communication and long term support 𝐀𝐕𝐀𝐈𝐋𝐀𝐁𝐈𝐋𝐈𝐓𝐘 - Full time freelancer - Available 40+ hours per week - Poland and European timezone - Available for EU, UK and US clients -> Open to long term product development less -
Hire pavlev8
AI, Data & Full-Stack Systems Architect with 6+ years of experience delivering 15+ production projects across six countries. I design, build, test and deploy complete software platforms—from data architecture and backend APIs to AI integration, user interfaces, cloud deployment and automated quality assurance. My...AI, Data & Full-Stack Systems Architect with 6+ years of experience delivering 15+ production projects across six countries. I design, build, test and deploy complete software platforms—from data architecture and backend APIs to AI integration, user interfaces, cloud deployment and automated quality assurance. My strongest technologies are Python, Django and PostgreSQL, supported by extensive JavaScript/TypeScript experience with MERN and MEAN applications. As an EU citizen, I offer convenient working-hour overlap for European and US clients. ## What I Build • AI & Generative AI: LLM applications, RAG systems, AI agents, chatbots, semantic search, structured outputs, function/tool calling, prompt engineering, model integration and evaluation. • Data Engineering: ETL/ELT pipelines, data ingestion, transformation and validation, database design, query optimization, time-series processing, IoT sensor integration and data-quality automation. • Full-Stack Systems: scalable APIs, responsive web applications, authentication, third-party integrations, background processing and real-time communication using WebSockets and SSE. • DevOps & Cloud: containerized deployment, Linux environments, CI/CD workflows, asynchronous services, production configuration and deployment automation. • QA Automation: API, integration, regression and end-to-end testing, validation scripts, test-data workflows and automated quality gates. ## Technical Stack AI: OpenAI API, Anthropic, Gemini, Hugging Face, LangChain, LlamaIndex, PyTorch, TensorFlow and scikit-learn. Vector infrastructure: FAISS, Chroma, Pinecone and pgvector. Backend & frontend: Python, Django, Django REST Framework, Falcon, Node.js, Express, React, Angular, JavaScript, TypeScript, C#/.NET and Java. Data: PostgreSQL, MongoDB, SQL Server, Redis, SQL, pandas, NumPy and SciPy. DevOps & real-time: Docker, Docker Compose, AWS S3, Heroku, Linux, Gunicorn, Celery, Redis Pub/Sub, Django Channels, WebSockets, SSE and cron. Testing: Pytest, Jest and Playwright. Integrations: Stripe, Firebase Cloud Messaging, Expo Push, OpenAI and other LLM APIs, Met.no, Meteostat and custom third-party services. ## What I Bring I take ownership from initial requirements through production deployment. I have independently built systems from zero, coordinated Android and iOS developers on API consistency, integrated complex external services and mentored junior engineers. My combined experience in backend engineering, data, AI and infrastructure enables me to solve problems across the entire platform—not just one isolated layer. I prioritize scalability, security, maintainability, clear communication and documentation, delivering systems that teams can confidently operate and extend. less
