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Freelance OpenAI Developer - Kazi Sohan
Freelance OpenAI Developer5.0 (154 reviews)
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I love to teach what I know. I think I can explain things easily with examples. I have been working as a Software Engineer for the last 5 years and have worked with some of the world's most reputed companies like **Open AI, Scale AI, Doloras Lab**, etc as a freelancer.

Freelance OpenAI Developer - Umair Jameel
Freelance OpenAI Developer5.0 (18 reviews)

● AI Powered development using Javascript and its frameworks/libraries like Angular, React, Next.js, Express, Node, Express, mongodb, mongoose etc. ● AI agents, prompt engineering, RAG, MCP servers, vibe coding. ● Full stack development in next.js including frontend, backend and databases. ● Architecture projects from scratch as well as building new features in existing projects. ● Debug and fix errors in existing projects. ● Database architecture using mongodb, postgres, ORMs like prisma and drizzle. ● Implement the best practices of code structure, logic building and making code efficient. ● Follow pure Object Oriented Programming and Data Structures for solving problems. ● REST API development using node and its frameworks (mainly express). ● Know best practices of writing test cases (it includes unit testing and automation testing). ● Decision making in choosing programming languages, frameworks and libraries for a particular project. ● Good communication skills and understanding client requirements. ● Do research and development to stay up to date with new technologies and always keen to adopt better approaches in solving any kind of problem. ● Experience in CI/CD, docker, github actions etc. ● Teaching experience for over 5 years now. These are some projects I have worked on: https://learnwith.flashclass.io/ https://www.getconch.ai/ https://eahousing.es/ https://www.blackbox.ai/ https://unation.com/

Freelance OpenAI Developer - Calvin T
Freelance OpenAI Developer5.0 (433 reviews)

- 5+ projects in freelancing mobile+website games in Construct 3 for clients - 1 year of daily tutoring in Construct 3 and C++ - 3 years of school learning experience with Java - 5 months of tutoring in Unity game dev - published one commercial Construct 2 game on Wii U "Reversi 32" - tutored Intro to Computer Science material using Python with Minecraft every week since Dec 2019

Freelance OpenAI Developer - Qaiser Mehmood
Freelance OpenAI Developer5.0 (7 reviews)

I **define the architecture**. For 21 years, I've been the person CTOs and lead developers call when systems fail under load, migrations are at risk, or AI integration needs to work right the first time. With expertise in **C#, .NET, Blazor, ASP.NET Core, SQL, Python,** and production AI agents (**Semantic Kernel, LangGraph, custom tool-calling**), I design systems where performance, reliability, and intelligent automation aren't optional—they're the baseline. I've shipped AI to **production** — not to a Jupyter notebook. I'm the creator of **FreeAIVoice** — a live AI voice platform with AI Voice Generation, Voice Cloning, and Speech-to-Text across **30+ spoken languages** and a developer API. I provided production systems for The New York Times. --- **Here's where I'm most useful to you:** - **The AI Integration Trap** — You've been asked to add AI to your existing .NET system but don't know whether to use *Semantic Kernel*, raw OpenAI APIs, or a Python sidecar. I've made that decision dozens of times. I'll make it faster and safer for you. - **The Blazor Bottleneck** — Your Blazor app is slow, state management is tangled, and you're unsure if you chose *Server or WASM* incorrectly. I can diagnose what went wrong and map a clean path forward — often in a single session. - **The Legacy Modernization Cliff** — You have a 10-year-old .NET system that needs AI or modern tooling but wasn't designed for it. I specialize in *incremental refactoring paths* that don't require a full rewrite and don't break what's already working. --- **What I Do Best:** - **Software Architecture & System Design** — scalable, maintainable systems from greenfield to enterprise - **AI Agent Development** — production-grade agents with Semantic Kernel, LangGraph & AutoGen — *not demos* - **Blazor & ASP.NET Core** — Server, WASM, hybrid — full-cycle development and performance tuning - **Python & AI Automation** — RAG pipelines, workflow automation, voice AI, LLM integrations - **Legacy .NET Modernization** — refactoring strategy, migration paths, incremental upgrades - **Architecture Audits** — identifying structural risk before it becomes a production incident, not after - **Debugging Complex Systems** — when the stack trace doesn't tell the whole story **If any of this sounds like your current situation — DM me. I respond to every message.**

Freelance OpenAI Developer - Kiril Mladenovski
Freelance OpenAI Developer5.0 (1 reviews)

Full Stack Engineer with 5 years of experience specializing in React, TypeScript and Next.js, delivering solutions that prioritize client satisfaction. Led 8 projects throughout his career, the latest being a cutting-edge AI SaaS app. Known for attention to detail, constantly delivering high-quality work including pixel-perfect design implementations. Always seeking new challenges and learning opportunities, with a commitment to shipping value-driven solutions.

Freelance OpenAI Developer - Saurabh Gupta
Freelance OpenAI Developer

I am 2013 CS graduate having 10+ years of work experience in web and hybrid mobile development. My area of expertise is Full stack development with JavaScript as the primary tech stack. I work with all kinds of modern Javascript frameworks like React, Next.js, Vue, Node.js, Deno, Typescript Other technologies I work with include MySQL, Postgres, Supabase, Docker, AWS, Ionic, Electron.js, Tauri I have experience developing Web, Hybrid mobile applications and Desktop applications My latest experience involve end to end feature development with AI Integrations and specialization in building interfaces for AI-native applications that require high transparency, audit trails, and source attribution.

Freelance OpenAI Developer - Nishant Tiwari
Freelance OpenAI Developer

- A Full-stack software developer - Passionate about new technologies - Always ready to help - Experience .Net ecosystem, Java and react - Clean coder

Freelance OpenAI Developer - Tanisha Bhayani
Freelance OpenAI Developer5.0 (318 reviews)

8 years of experience in building and managing AI Systems. * I develop end-to-end AI systems from requirements analysis, and data gathering to deployment, implementing new methods/research papers, and turning projects into research outcomes. I have achieved substantial performance in DL/ML/RL models for CV and NLP domain problems. * Implementing and deploying projects handling and maintaining scalability, research papers as well as POCs. * Project planning, requirements gathering, and analysing requirements to define the system's architecture, and implementation timeline. * Provide mentoring to junior developers for ML projects. Website: [roshantanisha.github.io/?ref=codementor](http://roshantanisha.github.io/?ref=codementor) Summary: I like to work on technology that is smart, simple and sophisticated. This sums up the vast knowledge required to work on projects to excel in a working product. I like to train Deep Neural Networks and understand them well. I have mentored many students for their AI careers, teaching them Machine Learning and Mathematics. I am a mentor for the RFS (Reach for the Stars) Programme by the Aga Khan Education Board for India. I am an alumnus of this program as well. I have a cumulative experience of 8 years working in the product and service-based industry for creating Machine Learning projects. I have done some innovative work that I am proud of and am continuing to do so. I try my best to contribute my expertise to the project I am working on. Highly Experienced in Machine Learning, Deep Learning, Advanced Deep Learning, Artificial Intelligence, and Algorithms, including models in the production environment, and deploying ML models. Working with top Indian colleges like BITS, niche NLP and CV, real-estate startups, MNCs, and Fortune top 20 companies, working with sensitive anonymized datasets, and creating state-of-the-art models are some of my achievements. I have strong and correct knowledge of Deep Learning concepts from the above experiences.

Freelance OpenAI Developer - Maria Samuel
Freelance OpenAI Developer5.0 (14 reviews)

I am a Microsoft Certified Professional with over 15 years of development and solutions Architect experience. I have several MSFT certifications to back my skills and prove my expertise. I am also well versed in all Azure AI services and can work on small-mid projects that require GenAI features including RAG pipelines. I can work on backend and frontend applications. I have worked on a number of projects ranging from fully Azure based cloud app, DevOps set up from scratch to Mobile development using React Native. I have a range of hands on skills and also the ability to architect and maintain complete solutions.

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Frequently asked questions

How long do OpenAI projects normally take?

The length of a project depends on many factors, including the scope of your project and the technical complexity of it. When you post a freelance OpenAI project request on Codementor, you’ll have the option to indicate when you’d expect the project to be completed. We suggest chatting with the interested developers to ensure both sides are on the same page. For more information on how to post a freelance OpenAI request on Codementor, check out our article.

How much does it cost to hire a freelance OpenAI developer?

We don’t charge anything when you post a freelance hiring request for OpenAI developers! You’ll have the chance to determine what the budget for your project is when you post the request. You’ll only need to pay the developer if you’re 100% satisfied with their work. Please know that Codementor charges a small service fee when a developer completes the job.

What makes Codementor OpenAI developers different?

We do a comprehensive technical and communications screen of all OpenAI developers at Codementor. Our network includes book authors, popular open source contributors, top Stack Overflow users and engineers at top tech companies. In addition, to continually ensure the quality of our freelancers, we regularly check in on existing OpenAI developers’ user satisfaction rates.

What happens if I’m not happy with the freelancer’s work?

As a platform, we strive to ensure you’re always happy with your OpenAI project’s results. If you’re unsatisfied with the results, you can choose to get a refund for the project. Additionally, you can contact our support team should you need any further assistance with your project.

For more answers to frequently asked questions, see here.

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