Hire the Best OpenAI Developers
San Francisco, California
👑𝗧𝗼𝗽 𝟭% 𝗘𝘅𝗽𝗲𝗿𝘁-𝗩𝗲𝘁𝘁𝗲𝗱 𝗧𝗮𝗹𝗲𝗻𝘁 | 𝗙𝘂𝗹𝗹 𝗦𝘁𝗮𝗰𝗸 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗲𝗿 | 𝗡𝗼𝗱𝗲.𝗷𝘀, 𝗣𝘆𝘁𝗵𝗼𝗻 & 𝗙𝗮𝘀𝘁𝗔𝗣𝗜 | 𝗪𝗲𝗯 & 𝗠𝗼𝗯𝗶𝗹𝗲 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 I am an expert Full Stack Developer with over 12 years of experience in building scalable, high-performance web and mobile applications. With a deep understanding of modern frameworks and technologies such as Node.js, Python, and FastAPI, I have consistently delivered innovative solutions to complex challenges, working across the full stack to build end-to-end solutions. As a top 1% Expert-Vetted Talent, I’ve been pre-screened by industry professionals and talent managers to ensure I meet the highest standards of technical expertise and quality. Throughout my career, I’ve had the privilege of working in dynamic, high-impact roles at some of the most renowned tech companies, where I gained extensive experience in leading engineering teams and architecting advanced systems. 𝗣𝗿𝗼𝗳𝗲𝘀𝘀𝗶𝗼𝗻𝗮𝗹 𝗘𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 1- 𝗦𝗲𝗻𝗶𝗼𝗿 𝗦𝗼𝗳𝘁𝘄𝗮𝗿𝗲 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿 | 𝗠𝗶𝗰𝗿𝗼𝘀𝗼𝗳𝘁 Spearheaded large-scale, cloud-based software systems that supported Microsoft’s enterprise solutions, focusing on security, performance optimization, and user experience. Led cross-functional teams to implement key features for Microsoft Azure and Office 365. 2- 𝗦𝗲𝗻𝗶𝗼𝗿 𝗦𝗼𝗳𝘁𝘄𝗮𝗿𝗲 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿 | 𝗙𝗮𝗰𝗲𝗯𝗼𝗼𝗸 Contributed to the core engineering teams responsible for Facebook’s backend services, handling millions of active users and optimizing real-time data processing. Played a pivotal role in building scalable APIs, improving system performance, and enhancing user experience. 𝟯- 𝗟𝗲𝗮𝗱 𝗦𝗼𝗳𝘁𝘄𝗮𝗿𝗲 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿 | 𝗛𝗲𝗹𝗹𝗼𝗴𝗼𝘃 𝗔𝗜 Directed a team to build AI-powered government solutions, improving efficiency and accessibility for public services. Collaborated with stakeholders to design innovative features while ensuring system reliability and scalability. 𝗞𝗲𝘆 𝗦𝗸𝗶𝗹𝗹𝘀 & 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝗶𝗲𝘀 1- Backend Development: Skilled in Node.js, Python, FastAPI, and Express.js for building scalable APIs and microservices. 2- Frontend Development: Experienced with React.js, Vue.js, and HTML/CSS for creating responsive web interfaces. 3- Mobile Development: Expertise in React Native and Flutter for cross-platform mobile app development. 4- Cloud & DevOps: Proficient in AWS, Azure, Google Cloud, Docker, Kubernetes, and CI/CD for scalable deployment. 5- Database Management: Strong in relational and NoSQL databases like PostgreSQL, MySQL, MongoDB, and Redis. 6- Agile & Leadership: Experienced in leading Agile teams, driving project success, and mentoring junior developers. 𝗙𝗹𝗲𝘅𝗶𝗯𝗹𝗲 𝗧𝗶𝗺𝗲𝘇𝗼𝗻𝗲 𝗔𝘃𝗮𝗶𝗹𝗮𝗯𝗶𝗹𝗶𝘁𝘆: I am comfortable working across a variety of time zones and can adapt to your team’s working hours, ensuring seamless collaboration no matter where you're based. Whether you need overlapping work hours or full-time availability, I am open to flexible arrangements that align with your team’s needs. 𝗛𝗶𝗴𝗵-𝗤𝘂𝗮𝗹𝗶𝘁𝘆, 𝗦𝗰𝗮𝗹𝗮𝗯𝗹𝗲 𝗦𝗼𝗹𝘂𝘁𝗶𝗼𝗻𝘀: I have a proven track record of building high-performance systems that scale efficiently, ensuring long-term stability and performance. I am committed to delivering robust solutions that meet business goals while optimizing user experience. 𝗙𝗮𝘀𝘁-𝗣𝗮𝗰𝗲𝗱 & 𝗥𝗲𝘀𝘂𝗹𝘁𝘀-𝗗𝗿𝗶𝘃𝗲𝗻: I thrive in fast-paced environments and understand the importance of meeting deadlines without compromising on quality. I take a results-driven approach to development, always focusing on delivering value quickly and effectively. 𝗣𝗿𝗼𝘃𝗲𝗻 𝗟𝗲𝗮𝗱𝗲𝗿𝘀𝗵𝗶𝗽 𝗮𝗻𝗱 𝗧𝗲𝗮𝗺 𝗖𝗼𝗹𝗹𝗮𝗯𝗼𝗿𝗮𝘁𝗶𝗼𝗻: Throughout my career, I’ve led multiple cross-functional teams, ensuring strong collaboration and clear communication at all stages of development. Whether working as a lead engineer or as part of a team, I take an active role in mentoring and guiding junior developers to achieve their full potential. 𝗜𝗻𝗻𝗼𝘃𝗮𝘁𝗶𝘃𝗲 & 𝗖𝗼𝗻𝘁𝗶𝗻𝘂𝗼𝘂𝘀 𝗟𝗲𝗮𝗿𝗻𝗲𝗿: I am passionate about staying ahead of the curve in an ever-evolving tech landscape. My curiosity drives me to constantly explore new tools, technologies, and techniques, so I can apply the best possible solutions to each project I undertake. 𝗟𝗲𝘁’𝘀 𝗕𝘂𝗶𝗹𝗱 𝗦𝗼𝗺𝗲𝘁𝗵𝗶𝗻𝗴 𝗚𝗿𝗲𝗮𝘁 𝗧𝗼𝗴𝗲𝘁𝗵𝗲𝗿! With expertise in Full Stack Development, cloud solutions, and Agile, I offer flexible timezone availability and a commitment to delivering high-quality, scalable applications, ready to collaborate and drive results. 𝗞𝗲𝘆𝘄𝗼𝗿𝗱𝘀: Full Stack Developer, Senior Software Engineer, Node.js, Python, FastAPI, React.js, Web Development, Mobile Development, Backend Development, Frontend Development, Full Stack Architecture, API Development, RESTful APIs, Microservices, Cloud Computing, AWS, Azure, Google Cloud, Docker, Kubernetes, CI/CD, Continuous Integration.
- Node.js
- React
- Mobile App
- React Native
- Full-Stack Development
- JavaScript
- TypeScript
- React Bootstrap
- Web Application Development
- API Development
- OpenAI API
- FastAPI
- Python
- MERN Stack
- SQL Programming
Layyah, Pakistan
# Top Rated AI Agent Engineer | RAG | Multi-Agent Systems | OpenAI & Claude | Automation Expert Are you looking to build AI that actually delivers business results—not just another chatbot demo? I help startups, SaaS companies, and enterprises build production-ready AI systems that automate workflows, improve decision-making, reduce operational costs, and scale reliably. 🔹 Built 100+ AI-powered solutions 🔹 Top Rated AI/ML Engineer 🔹 Specialized in AI Agents, RAG, and Business Automation 🔹 Focused on real-world deployment, scalability, and measurable ROI ## What I Can Help You Build ✅ AI Agents & Multi-Agent Systems * Autonomous AI workflows * Research and analysis agents * Customer support agents * Sales and lead-generation agents * Multi-agent orchestration using LangGraph ✅ RAG (Retrieval-Augmented Generation) * Knowledge base chatbots * Internal document assistants * Citation-based AI systems * Enterprise search solutions * Vector databases (Pinecone, FAISS, Chroma) ✅ Generative AI & LLM Applications * OpenAI GPT-4o * Claude API * Gemini * Custom AI assistants * AI-powered SaaS features ✅ Workflow Automation * n8n automation * Zapier automation * AI-driven business processes * CRM integrations * API integrations ✅ Backend & AI Infrastructure * Python * FastAPI * LangChain * LangGraph * Vector Databases * Cloud Deployment * Production AI Architecture ## Recent Results ✔ Built AI customer support agent that reduced support workload by 60% ✔ Developed enterprise RAG platform achieving 95%+ response accuracy ✔ Automated business workflows saving 100+ hours per month ✔ Built multi-agent systems for research, reporting, and operational automation ## Why Clients Hire Me Many developers can build an AI demo. I build systems that: ✅ Work reliably in production ✅ Scale as your business grows ✅ Integrate with your existing tools ✅ Deliver measurable business value ✅ Are maintainable and cost-efficient ## Industries I Work With ✔ SaaS Startups ✔ AI Product Companies ✔ E-commerce Businesses ✔ Consulting Firms ✔ Enterprise Teams ✔ Operations & Support Teams ## Let's Build Something That Creates Real Business Impact Whether you're building an AI product, implementing RAG, developing AI agents, or automating business processes, I can help you design and deploy a solution that works in production. Send me a message with your project idea, and I'll suggest the best approach to get started.
- Artificial Neural Network
- Deep Neural Network
- Python
- Machine Learning
- Computer Vision
- Object Detection
- LLaMA
- LangChain
- OpenAI Codex Prompt
- Microsoft Power BI Data Visualization
- AWS Lambda
- Pinecone
- LLM Prompt Engineering
- Retrieval Augmented Generation
- Chatbot Development
Lahore, Pakistan
𝐓𝐨𝐩 𝐑𝐚𝐭𝐞𝐝 𝐏𝐥𝐮𝐬 - Proudly Among Top 3% of Talent on Upwork ⏰ I work in US Eastern hours for real-time collaboration (because async has its limits!) Working building 𝐀𝐈 𝐀𝐠𝐞𝐧𝐭𝐬 𝐚𝐧𝐝 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧𝐬 for businesses, I've worked on some really great AI applications and have experience on tools such as SharePoint, Power Platform, Azure, Dynamics 365, AI/ML, LangChain, LangGraph, LlamaIndex, ElevenLabs, Hugging face models, 3D Reconstruction, RAG Pipelines and more. 👨💻 About me: Hello! I'm Azeem from the serene city of Islamabad. A passionate Software Engineer with over 7+ years of experience in building dynamic and scalable applications. 📌 What I Bring to the Table: Throughout my career, I’ve architected and developed applications across diverse industries, leveraging my deep expertise in both front-end and back-end technologies. If your project involves anything from crafting a responsive web app to optimizing database structures, I’m here to help! - 𝗦𝗵𝗮𝗿𝗲𝗣𝗼𝗶𝗻𝘁 𝗗𝗲𝘃𝗲𝗹𝗼𝗽𝗺𝗲𝗻𝘁 – Intranets, DMS, Portals, SPFx-based solutions, end-to-end SharePoint solutions -𝗣𝗼𝘄𝗲𝗿 𝗣𝗹𝗮𝘁𝗳𝗼𝗿𝗺 – Power Automate, Power BI, Power Apps (workflow automation, data-driven apps, custom dashboards) -𝗠𝗶𝗰𝗿𝗼𝘀𝗼𝗳𝘁 𝗗𝘆𝗻𝗮𝗺𝗶𝗰𝘀 𝟯𝟲𝟱 – CRM, Business Central (BC), NAV customization & integration - 𝗟𝗮𝗻𝗴𝘂𝗮𝗴𝗲𝘀 & 𝗙𝗿𝗮𝗺𝗲𝘄𝗼𝗿𝗸𝘀: Python, Django, FastAPI, Flask, React, Next.js, Streamlit. - 𝗔𝗜 & 𝗟𝗟𝗠 𝗧𝗼𝗼𝗹𝘀: OpenAI API, LangChain, LangGraph, MCP, Anthropic (Claude), LlamaIndex, ElevenLabs, Whisper, Hugging Face Transformers, Pinecone, Weaviate, ChromaDB - 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻𝘀 & 𝗔𝗣𝗜𝘀: CRMs (HubSpot, Salesforce), ERPs, Firebase, Slack, MS Teams, Zapier, Make, Stripe, PayPal, REST & GraphQL APIs - 𝗔𝗜 𝗔𝗽𝗽𝗹𝗶𝗰𝗮𝘁𝗶𝗼𝗻𝘀: AI Agents, Healthcare AI recommendations, AI Therapy App, Chatbots, Document & PDF Q&A, Voice AI, Text-to-Speech, Speech-to-Text, AI Content Generation, AI-Powered Search 🌟 A few feedbacks from projects below: 🏅 "This has been my 5th contract with Azeem, and he’s exceptional. He goes above and beyond, delivering tasks with dedication. Highly recommended for any full-stack MERN project!" 🏅 "I have been hiring freelancers since 2017. Azeem is one of the top 3 best developers I've ever hired. He completes work in hours that others take weeks to finish, with no need for oversight." 🏅 "Azeem is fantastic - he is great at taking business descriptions of technical problems and solving them with code. He is a proficient JavaScript developer and has a strong attention to detail." 🏅 "Working with Azeem was a blast. He's very skilled in the MERN stack, and I could always count on him whenever I needed a feature implemented for our mobile app. He has my full recommendation." 🏅 "Azeem solved a complex backend mapping issue with brilliant logic. Quick delivery, excellent recommendations, and flexibility despite time zone differences. Highly recommended!" 📅 Let’s Chat: Available for a free 15-minute consultation to discuss your project and explore how I can help make your vision a reality. Thanks for visiting my profile – let’s build something great together!
- AI App Development
- Generative AI
- Python
- AI Development
- OpenAI API
- LangChain
- Azure OpenAI Service
- AI Model Development
- Retrieval Augmented Generation
- Artificial Intelligence
- AI Agent Development
- AI Chatbot
- AI Model Integration
- Conversational AI
- LLM Prompt Engineering
Kyiv, Ukraine
I’m Pavlo Pohuliailo, Founder of Deveteria (AI Development Team) - raised $100k in the financial year 2025-2026) Over the last few years, I’ve led 20+ AI solutions from idea to enterprise-grade production. With a team of 50+ experienced AI Engineers, AI Agent Developers, AI Researchers, IOS Mobile developers (Flutter, React Native), Frontend developers, Backend developers, Product Manager, DevOps, MLOPS, and many more. ✅ We are a fit if: Your company has a minimum of 5+ people already executing. You are the direct decision maker or can approve technical direction. Your project budget is at least $5,000 USD+ for the first phase. You aim for at least $10,000+ measurable efficiency or operational savings within 90 days from AI deployment. You are ready to begin within the next 2 weeks. ❌ We are not a fit if: Pricing is the primary factor above outcome, speed, and quality. You expect provable meaningful results inside 14 days or less. Your business falls under gambling, adult, or similar restricted categories. You are not collaborative or not open to strategic guidance. ⚡ Real Results ✅ TOINGG – Handles 10,000+ AI calls/min with 99.9% uptime ✅ AI Outreach Engine – Converted 200 cold messages → 8 booked meetings ✅ Trusted globally – by startups, agencies & enterprises across the US, UK, UAE, Australia and many more.. 🧩 Our Expertise 🔊 AI Voice & Communication - AI calling agents (TOINGG – our own product) - Voice interviewers & virtual receptionists - WhatsApp + Voice chatbot integrations - Sentiment-aware, memory-powered bots 🧠 Autonomous AI Agents - Multi-agent systems for recruiting, trading & operations - GDPR & EEOC-compliant recruiter AI - RAG pipelines + LLM-based decision logic - Hybrid human + AI workflows 🛍️ eCommerce & Retail AI - Shopify-integrated voice bots - Dynamic product recommendation systems - AI-powered sales & support automation 📊 AI Analytics & Insights - Personalized recommendation engines - AI-driven dashboards & business forecasting - Automated reporting with natural-language summaries 💼 Custom AI Use-Cases - Legal AI (Spanish law databases – RAG-based) - AI content & script generators for marketing - Healthcare marketplaces with smart matching 💡 How We Help 🔨 End-to-End Product Development - From idea → MVP → scale 👥 Team Augmentation - Add our vetted AI engineers or full dev pod to your team ⚙️ Optimize or Scale Existing Systems - We take over, refactor, and scale existing products seamlessly 🤝 Why Teams Work With Us ✅ Proven AI & Product Experience – not just prototypes, we ship in production ✅ Startup-Minded Speed – we build like cofounders, not contractors ✅ Enterprise-Grade Quality – security, compliance, uptime built-in ✅ Transparent Estimates – no surprises, every milestone defined ✅ Expert-Led Team – 32 vetted AI engineers & product specialists 💬 Let’s Talk We usually respond within minutes. Whether you’re building a new AI product or scaling an existing one — let’s make it production-ready. 📩 Message me today and let’s bring your AI vision to life.
- NestJS
- Node.js
- Chatbot Development
- n8n
- Supabase
- Next.js
- Amazon Web Services
- Full-Stack Development
- React Native
- web3.js
- Blockchain
- PostgreSQL
- AI Bot
- React
Paderborn, Germany
⭐𝗜 𝗼𝗳𝗳𝗲𝗿 𝗮 𝗳𝗿𝗲𝗲 𝟭𝟱-𝗺𝗶𝗻𝘂𝘁𝗲 𝗔𝗜 𝘀𝘁𝗿𝗮𝘁𝗲𝗴𝘆 𝗮𝘂𝗱𝗶𝘁 𝘁𝗼 𝘀𝗵𝗼𝘄 𝘆𝗼𝘂 𝗵𝗼𝘄 𝗔𝗜 𝗰𝗮𝗻 𝗯𝗼𝗼𝘀𝘁 𝘆𝗼𝘂𝗿 𝗯𝘂𝘀𝗶𝗻𝗲𝘀𝘀 𝗶𝗻𝘀𝘁𝗮𝗻𝘁𝗹𝘆. ⭐𝗬𝗼𝘂𝗿 𝗕𝗼𝗻𝘂𝘀 𝗔𝗱𝘃𝗮𝗻𝘁𝗮𝗴𝗲 You get a developer with Agentic AI, OpenAI, RAG systems, automation, Full Stack dev, and backend expertise — all in one person. That means you hire one expert instead of 3 and save both time and cost. 𝗠𝗼𝘀𝘁 𝗯𝘂𝘀𝗶𝗻𝗲𝘀𝘀𝗲𝘀 𝘀𝘁𝗿𝘂𝗴𝗴𝗹𝗲 𝗯𝗲𝗰𝗮𝘂𝘀𝗲: ❗ AI tools don’t work the way they expect ❗ Developers deliver incomplete or unstable systems ❗ Integrations break at scale ❗ Workflows are manual, slow, or outdated ✅ 𝗠𝘆 𝗦𝗼𝗹𝘂𝘁𝗶𝗼𝗻 I build production-ready AI systems that actually work. From Agentic AI automation to RAG pipelines, OpenAI integrations, N8n workflows, and full-stack platforms — I deliver reliable solutions that boost efficiency and reduce workload. I combine AI engineering + backend expertise + full stack development to give you a complete, scalable solution from idea to deployment. ⭐ 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲 ✔ Agentic AI Systems ✔ LLM Integration & Automation ✔ RAG Pipelines ✔ N8n Workflow Automation ✔ Full Stack Development ✔ Backend APIs ✔ OpenAI / Vapi / ElevenLabs ✔ Python, JS, TypeScript ✔ Scalable Cloud Deployments ⭐ 𝗦𝗸𝗶𝗹𝗹𝘀 ✔ Python, JavaScript, TypeScript ✔ FastAPI, Node.js, Next.js ✔ OpenAI, Llama, DeepSeek ✔ Vector Databases ✔ Supabase, PostgreSQL ✔ Docker, Kubernetes ✔ API Development & Integrations ✔ Real-time Automation ✔ AI Agents & Multimodal Workflows ⭐ 𝗦𝗲𝗿𝘃𝗶𝗰𝗲𝘀 𝗜 𝗢𝗳𝗳𝗲𝗿 ➤ Agentic AI automation & multi-agent systems ➤ Custom RAG architecture & knowledge bases ➤ AI-powered chatbots, voicebots, virtual assistants ➤ N8n automations for CRM, email, workflow management ➤ Backend engineering (APIs, auth, scalable services) ➤ Full-stack platforms with Next.js & Supabase ➤ OpenAI, Vapi, ElevenLabs integrations ➤ API development and cloud deployments ➤ End-to-end AI MVPs & enterprise solutions ⭐ 𝗪𝗼𝗿𝗸𝗶𝗻𝗴 𝗘𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲 ✔ Built scalable backends for agentic AI platforms ✔ Developed job placement & scheduling platforms ✔ Worked with Llama 3.1, DeepSeek, custom models ✔ Built multi-agent automation frameworks ✔ Integrated Zoom, Calendly, Google Meet, Twilio ✔ Built dashboards, NLP systems, and automation pipelines ⭐ 𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝗶𝗲𝘀 ✔ SaaS ✔ Healthcare & Medical AI ✔ Recruitment & HR Tech ✔ Finance & Market Analytics ✔ E-commerce ✔ Automation & Operations ⭐ 𝗗𝗼𝗺𝗮𝗶𝗻𝘀 ✔ AI Automation ✔ NLP & LLM Apps ✔ Backend Architecture ✔ Full-Stack Platforms ✔ Data Processing ✔ Voice & Chat Automation ⭐ 𝗧𝗼𝗼𝗹𝘀 & 𝗧𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝗶𝗲𝘀 ✔ OpenAI, Llama, DeepSeek ✔ N8n, LangChain ✔ Supabase, PostgreSQL, Redis ✔ Docker, Kubernetes ✔ Vercel, AWS ✔ Vapi, ElevenLabs ✔ Git, CI/CD If you want AI systems that actually work, workflows that run automatically, and software that scales — let’s build it together. 👉 Send me a message now. I’ll review your needs and give you a free 15-minute strategy plan to get started. 🔑 𝗞𝗲𝘆𝘄𝗼𝗿𝗱𝘀 AI development, Agentic AI, RAG, OpenAI, LLM integration, Python, TypeScript, JavaScript, n8n automation, Vapi, ElevenLabs, FastAPI, Next.js, Supabase, backend development, full stack development, AI automation, vector database, chatbot development, workflow automation, NLP, machine learning, AI engineer, API development, cloud deployment, Docker, Kubernetes, Node.js, enterprise AI, custom LLMs, model integration, AI workflows, automation pipelines, AI agents, microservices, scalable systems, frontend backend integration, AI tools, SaaS development
- Python
- Generative AI
- OpenAI API
- LLaMA
- AI Agent Development
- Docker
- Next.js
- Kubernetes
- OpenAI Codex Prompt
- n8n
- AWS Development
- TypeScript
- FastAPI
- PostgreSQL
- LangChain
London, United Kingdom
I am a Senior AI/ML Engineer with 8+ years of experience designing and deploying scalable Artificial Intelligence systems. I specialize in Large Language Models (LLMs), Generative AI, Deep Learning, NLP, and AI-powered applications that help businesses automate processes, extract insights from data, and build intelligent products. I have strong experience building AI-powered platforms, chatbots, recommendation systems, computer vision solutions, and LLM-based applications using modern frameworks and cloud infrastructure. My expertise includes end-to-end AI system development from research and model training to production deployment and monitoring. What I can help you build • LLM Applications (GPT, LLaMA, Claude, Mistral) • RAG Systems with vector databases (Pinecone, FAISS, Weaviate, ChromaDB) • AI Chatbots & Conversational AI for web, Slack, WhatsApp, Telegram • Generative AI solutions (text, image, and code generation) • Custom NLP pipelines (NER, sentiment analysis, classification, summarization) • Deep Learning models for prediction, automation, and data intelligence • Computer Vision systems (object detection, image classification) • Agentic AI systems using LangChain, LangGraph, and LlamaIndex • Model training, fine-tuning and optimization (LoRA, PEFT, quantization) • MLOps pipelines and scalable AI deployment Technologies & Tools: AI / Machine Learning TensorFlow, PyTorch, Keras, Scikit-learn, Hugging Face LLM & GenAI OpenAI API, LangChain, LlamaIndex, Transformers, RAG architectures Deep Learning CNN, RNN, LSTM, Transformers, GANs, Autoencoders Vector Databases Pinecone, FAISS, Weaviate, Milvus, Qdrant Cloud & Infrastructure AWS, GCP, Azure, Docker, Kubernetes, CI/CD Languages Python, Bash/Shell scripting Why work with me ✔ 8+ years of AI/ML experience ✔ Production ready AI systems ✔ Scalable architectures for startups and enterprises ✔ Strong research + engineering background ✔ Clean, maintainable, well-documented code If you're looking to build AI products, LLM applications, intelligent chatbots, or scalable machine learning systems, feel free to reach out.
- Machine Learning
- Deep Learning
- Large Language Model
- LangChain
- Natural Language Processing
- Generative AI
- OpenAI API
- Retrieval Augmented Generation
- Python
- PyTorch
- TensorFlow
- AI Chatbot
- Computer Vision
- Hugging Face
- MLOps
How it works
Post a job for free Post a job
Tell us what you need. Create your own job post or generate one with AI then filter talent matches.
Hire top talent fast
Consult, interview, and hire quickly, so you can meet the freelancers you're excited about.
Collaborate easily
Use Upwork to chat or video call, share files, and track project progress right from the app.
Payment simplified
Manage payments in one place with flexible billing options. Only pay for approved work, hourly or by milestone.
Don't just take our word for it
“Upwork provides an umbrella-level of security. I can see a talent’s work history and ratings. I can hold payments in escrow. I can communicate through Upwork Messages instead of working through my email address.”
Kim Darling
Emerald Tiger
“Upwork is the best platform to hire skilled professionals when we're not looking for a full-time employee. All the companies in our portfolio use Upwork to find talent across a wide range of fields.”
David Merry
Kinetic Investments
“Our very specific requirements can be a challenge—With Upwork, we’re able to access a bigger community to ensure the success of our projects.”
Katja Krohn
Summa Linguae
OpenAI developer hiring guide
OpenAI developers help businesses harness the power of advanced AI to streamline operations, accelerate product development, and gain a competitive edge. Hiring an OpenAI developer gives organizations the technical expertise to deploy scalable, production-ready AI applications that drive measurable results.
What does an OpenAI developer do?
An OpenAI developer uses tools like the OpenAI API, SDKs, Python, JavaScript, and cloud infrastructure to design, build, and maintain AI‑powered applications such as chatbots, GPT-5 prototypes, multimodal systems, automation workflows, and custom reasoning models. Businesses hire them to create tailored AI systems, from custom endpoints and function calling setups to full‑cycle app development and production‑ready AI models.
These professionals bridge the gap between OpenAI's rapidly evolving platform and specific business needs. Their typical responsibilities include:
Managing model selection, prompt engineering, fine-tuning, and deployment while ensuring applications perform reliably at scale
Integrating ChatGPT into customer support systems
Building content-generation pipelines powered by the latest GPT models
Handling authentication, security, and cost optimization across OpenAI's token-based pricing structure to keep projects efficient and sustainable
Delivering solutions that align AI capabilities with real-world business objectives
Whether you need to fine-tune GPT models, build intelligent chatbots, integrate multimodal AI tools into existing workflows, or automate complex processes using the OpenAI API, these specialists translate cutting-edge AI capabilities into practical business solutions.
How to hire an OpenAI developer on Upwork
Upwork helps businesses of every size connect with dedicated AI professionals who specialize in OpenAI models, AI applications, real‑time automation, and back-end infrastructure.
Finding the right OpenAI developer requires a structured approach to evaluating technical proficiency and project alignment.
Step 1: Post your project
A clear, detailed job description helps attract qualified OpenAI developers who understand your specific requirements. Providing specific technical details and project context helps candidates self-select based on their relevant expertise.
Define your AI use case, preferred models, and expected deliverables up front.
Use Upwork's job description template for software developers to get started.
Define scope. Specify whether you need ChatGPT implementation, automation with OpenAI API, multimodal workflows, or enterprise reasoning models.
Mention tools and frameworks. Include OpenAI SDK, function calling, Azure OpenAI, GitHub, authentication, and deployment requirements.
Highlight the target outcome. State whether this is a startup MVP, full‑scale enterprise chatbot, content‑generation pipeline, or AI‑driven product.
The job posting process is even easier with the help of our Job Post Generator, powered by Uma™, Upwork's Mindful AI. Simply tell Uma what you need in a few sentences, and it will draft a customizable OpenAI developer job post, ready in seconds for your review.
Step 2: Review proposals
A systematic approach to proposal review helps you distinguish between developers with genuine OpenAI expertise and those with only surface-level familiarity. Prioritize candidates who demonstrate measurable outcomes from previous AI projects.
Focus on evidence of real-world deployments rather than theoretical knowledge alone when identifying developers with hands-on OpenAI experience.
Portfolio relevance. Look for projects involving GPT-4/GPT-5, ChatGPT, OpenAI API, real‑time AI workflows, and back-end frameworks.
Technical fluency. Ensure they understand endpoints, authentication, embedding, function calling, client libraries, and integration with GitHub or cloud services.
Feedback and trust. Prioritize professionals with strong reviews, repeat clients, and project descriptions showing structured outputs and automation.
You can use Upwork’s instant video interviews to screen applicants for a best-fit shortlist, with Uma providing side-by-side candidate comparisons.
Step 3: Conduct interviews
The interview step is your opportunity to evaluate how candidates approach complex AI challenges and whether their working style aligns with your team's needs. Prepare scenario-based questions that reveal both technical competence and collaborative ability.
Use this stage to verify technical depth, communication style, and alignment with your project's requirements. For OpenAI developers with deep model expertise, machine learning engineer interview questions can help assess foundational AI knowledge.
Review AI developer interview questions to structure your discussion.
Engine and model experience. Ask whether they've deployed GPT‑4 or GPT‑5 models in production and how they handled real‑time responses.
Integration and automation workflow. Ask how they set up function calling, managed API endpoints, and ensured structured outputs for your use case.
Collaboration and deployment. Ask for their process around version control (GitHub), deployment frameworks, cloud authentication, and monitoring.
Upwork Messages allows you to schedule and conduct live video interviews on the platform, with call transcripts and summaries available after the calls.
Step 4: Hire and collaborate
Once you've selected your OpenAI developer, formalize project terms in a contract. Establishing a strong foundation for collaboration from the outset helps prevent scope creep and miscommunication throughout the project life cycle.
Agree on the project structure: hourly for ongoing efforts or fixed-price for projects with finite deliverables.
Break work into milestones. For example: prototype fine‑tuning, production deployment, and post‑launch monitoring.
Set review cadence. Establish when you'll test model outputs, review endpoints, and validate user experience.
Stay on track. Track deliverables, approve milestones, manage communication, and share code via built-in tools in Upwork’s project workroom.
Upwork is not affiliated with and does not sponsor or endorse any of the tools or services discussed in this article. These tools and services are provided only as potential options, and each reader and company should take the time needed to adequately analyze and determine the tools or services that would best fit their specific needs and situation.
The rates and information provided in this article are based on current data and industry sources available at the time of publication. Freelance rates can vary depending on factors such as experience, location, project scope, and market conditions. Readers are encouraged to conduct their own research to confirm current rates and trends, as this information may change over time.
How much does hiring an OpenAI developer cost?
Hiring an OpenAI developer is similar in cost to hiring any AI developer, $30-$150 per hour. The range is large since costs depend on the developer's expertise, the complexity of the AI integration, and the scope of work required.
Project-based pricing can be a more reliable predictor when planning a budget. Review thse typical costs for OpenAI projects commonly found on Upwork:
ChatGPT API integration
$500-$2,000 /project
- Connect ChatGPT to an existing website or app
- Set up API endpoints and authentication
- Basic prompt configuration and testing
Custom GPT chatbot development
$2,000-$8,000 /project
- Build a branded chatbot with conversation flows
- Function calling and structured output setup
- Deployment to production environment
AI workflow automation system
$5,000-$20,000 /project
- Multistep automation using OpenAI API and cloud services
- Integration with existing business tools and databases
- Monitoring dashboard and error handling
Fine-tuned model application
$10,000-$30,000 /project
- Custom model fine-tuning with proprietary data
- Performance benchmarking and optimization
- Production deployment with scaling architecture
Enterprise multimodal AI platform
$25,000-$75,000+ /project
- Full-cycle AI application integrating text, image, and audio models
- Enterprise-grade security, SSO, and compliance
- Ongoing maintenance and model update retainer
FAQs about OpenAI developers
Frequently asked questions
Is hiring an OpenAI developer worth it?
Yes, when your business needs to leverage AI models like GPT‑5, Sora, or the OpenAI platform to automate workflows, generate content, or build real‑time applications, hiring an OpenAI development specialist pays off. Companies investing in AI development services see improved efficiency, faster time to market, and stronger competitive advantage. Demand for AI and machine‑ earning expertise is rising rapidly, and businesses with AI‑driven models are positioned to scale faster.
What types of businesses benefit most from hiring an OpenAI developer?
Businesses pursuing AI‑driven content generation, chatbot automation, enterprise API integrations, mobile AI apps, startup MVPs, or custom reasoning models benefit most from hiring OpenAI developers. If you're building apps using OpenAI models, fine‑tuning a GPT, automating workflows, or integrating AI at scale, then a dedicated OpenAI developer is an asset.
Smaller organizations without in‑house AI teams can outsource these capabilities, while startups can prototype quickly with expert help and scale as required without hiring full‑time data science or AI teams.
How long does it take to build an AI application using OpenAI models?
The time to build an AI application using OpenAI models depends on the use case. Simple prototypes (e.g., a ChatGPT-powered widget) can launch in a few weeks, while fully integrated, scalable AI systems with fine‑tuning, multimodal inputs, and production deployment may take three to six months or more. Iteration and testing of models, integrations, and workflows account for much of the timeline.
Creating and testing early prototypes help validate business value and reduce risk. Once core functionality is proven, you can move into optimization, scaling, monitoring, and enterprise deployment.
What kind of ongoing maintenance or support will my AI app need?
AI applications built with the OpenAI platform require ongoing work, typically including monitoring API usage and cost, updating models (e.g., switching to the latest available model, or changing models as prices change), refining prompts, securing authentication keys, handling content‑type variations, integrating user feedback, and scaling infrastructure. You may also need post‑launch tweaks, bug fixes, user‑experience improvements, and model governance.
Planning for a maintenance contract or retainer ensures your AI workflows stay performant, aligned with business goals, and responsive to new data or model updates.
Find more freelancers
Similar OpenAI Developer Skills
- Runway ML Developers
- Anthropic API Developers
- Word Embedding Specialists
- Perplexity Developers
- Twitter Developers
- Cursor AI Developers
- BigQuery Developers
- Data Annotators
- AI App Developers
- AI Assistant Developers
- Model Monitoring Specialists
- Apache Flume Developers
- FourSquare API Developers
- LangChain Developers
- AI Developers
- Oracle Complex Events Processing Specialists
Top Countries for OpenAI Developers
- BigQuery Developers in Indonesia
- BigQuery Developers in South Africa
- BigQuery Developers in Vietnam
- BigQuery Developers in Turkey
- BigQuery Developers in Poland
- R Developers & Programmers in Egypt
- R Developers & Programmers in Germany
- R Developers & Programmers in Brazil
- R Developers & Programmers in Ukraine
- BigQuery Developers in India
- R Developers & Programmers in India
- R Developers & Programmers in Pakistan
- Bioinformatics Developers in Egypt
- MATLAB Developers in Algeria
- MATLAB Developers in Turkey
- MATLAB Developers in China