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Freelance Prompt Engineering Developer - Rajesh Dhiman
Freelance Prompt Engineering Developer5.0 (22 reviews)

Is your AI-powered MVP built on a fragile 'vibe-coded' foundation? Are you struggling to scale a prototype that was built with lightning speed but is now plagued by bugs, security holes, and technical debt? I transform brittle AI prototypes into robust, **production-ready applications**. As a senior AI engineer specializing in the **Node.js** and **React** ecosystem, I bridge the gap between rapid, AI-assisted development and the disciplined engineering required for scalable, secure software. But robust software is only half the battle. The other half is making it *work for your business*. I design and implement **intelligent automation workflows** that connect your apps, eliminate manual tasks, and free up your team to focus on high-impact work. Whether you need to rescue a failing project, automate a core business process, or build a scalable MVP from the ground up, I provide the expert oversight to ensure your AI initiatives deliver real, measurable value. **My Core Services:** * **🤖 AI Code Rescue & Remediation:** I conduct deep **AI code audits** to debug, refactor, and secure fragile codebases (especially those built with LangChain.js). I turn unmaintainable prototypes into stable, scalable assets ready for real users. * **⚙️ Intelligent Workflow Automation & Integration:** I design and build digital assembly lines for your business. I offer a full spectrum of automation solutions: * **Rapid Integration:** Using **Zapier, Make.com & n8n** to connect your existing tools and solve immediate process bottlenecks. * **Custom API Development:** Building custom **Node.js** APIs and webhooks to connect proprietary systems or handle complex logic that no-code tools can't. * **AI-Powered Decisions:** Infusing your workflows with intelligence using the **OpenAI API** to triage support tickets, qualify sales leads, or generate content automatically. * **🚀 Custom AI Solution Development:** I architect and build bespoke AI solutions from scratch, from **Custom GPTs** and intelligent **AI Agents** to complex RAG (Retrieval-Augmented Generation) pipelines that leverage your private data. * **👨‍🏫 AI Engineer & Career Mentorship:** I provide 1-on-1 coaching to help developers navigate the AI landscape, master tools like LangChain.js, and build a successful career in AI engineering and automation. **My Tech Stack:** * **Languages:** Node.js, TypeScript, JavaScript * **Frameworks:** React, Next.js, Express.js, NestJS * **AI / LLM:** LangChain.js, OpenAI API, LlamaIndex, Vector Databases (Pinecone, Qdrant) * **Automation Platforms:** Zapier, Make.com, n8n Ready to move past the prototype phase and build a real business? **Send me a message with your project details or book a session to get started.** --- ### Service Packages * **Package 1: AI Code Audit & Production-Ready Roadmap** * **Description:** Have an AI-generated MVP that feels unstable? I'll perform a comprehensive review of your codebase. You'll receive a detailed report identifying security vulnerabilities, performance bottlenecks, and a concrete, actionable roadmap to make your application **production-ready**. This is the perfect first step to de-risk your project. * **Package 2: Intelligent Automation Workflow** * **Description:** Let's put a core business process on autopilot. We'll map out a high-impact workflow and I'll build a robust automation to solve it. Ideal for **automating lead qualification**, **triaging customer support tickets**, or **streamlining content pipelines** using the best tool for the job—Zapier, Make, or custom Node.js scripts. * **Package 3: Scalable AI MVP Development** * **Description:** Need to build an MVP the *right* way? I'll architect and develop a **scalable MVP** from day one, using professional, spec-driven development practices. We'll build a strong foundation with clean, documented code and a modern stack (Node.js, React) to avoid the technical debt that plagues "vibe-coded" projects.

Freelance Prompt Engineering Developer - JAGBIR SINGH
Freelance Prompt Engineering Developer5.0 (59 reviews)

Certified in UiPath and Microsoft Power Platform, with 15 years of IT experience in analysis, design, development, integration, testing, and maintenance . Proven expertise in designing and implementing end-to-end Robotic Process Automation (RPA) strategies for web, desktop, mainframe, PDF, SharePoint, and Excel applications using UiPath, integrated with Microsoft and Google OCR technologies. Delivered 100+ UiPath RPA bots globally, with major projects for US clients, ensuring on-time, quality delivery. Skilled in Microsoft Power Platform – including Power Automate Flows and Power Automate Desktop. Hands-on experience in LLM, RAG, Prompt Engineering, Agentic Automation, and AI Agents.

Freelance Prompt Engineering Developer - jayant pahuja
Freelance Prompt Engineering Developer

Data engineer | Machine Learning Engineer | Software engineer with proven record of 10 years in building data strategy and delivering ML/AI and data solutions

Freelance Prompt Engineering Developer - Gaurav Kumar Verma
Freelance Prompt Engineering Developer5.0 (57 reviews)

** Full refund if I fail to solve the problem.** Experienced Software Architect, Data Scientist and a polyglot programmer with 9+ years of experience in writing production software code using NodeJS, Go, C# .NET, Python, R, JavaScript, Java, C/C++, and others . In my stint at Research Lab, I worked on building Chatbots, Augmented Reality powered apps, Data Science and Machine Learning. I love explaining complicated things in the most simple way.

Freelance Prompt Engineering Developer - Siddhesh Dosi
Freelance Prompt Engineering Developer5.0 (32 reviews)

I have total 10+ year experience in data science, machine learning, python, NLP. I am expert in GenAI, Agentic AI, AI Agents, Langchain, LangGraph, CrewAI, Mutli Agent AI, LLM, Prompt, statistics analysis, regression, classification, recommendation, prediction, NLP, data analysis, feature engineering, python programming.

Freelance Prompt Engineering Developer - Olly Rennard
Freelance Prompt Engineering Developer5.0 (18 reviews)

Senior software engineer with 10 years of experience delivering scalable and high-impact systems, now bringing that expertise to AI-powered applications. Confident across the stack and fluent in Python, JavaScript, and TypeScript, with a strong grasp of cloud infrastructure and system design. Experience building solutions spanning modern LLM-based systems, deep learning, and classical machine learning, with a focus on integrating these capabilities into real products. Known for learning quickly, solving hard problems, and building pragmatic, reliable software. Right now I'm looking for my next adventure so feel free to reach out to me!

Freelance Prompt Engineering Developer - Eugenio Galioto
Freelance Prompt Engineering Developer5.0 (9 reviews)

Builder, Founder, On Deck Fellow. I have been building successful production GenAI applications in production since early 2023 in the Real Estate, Fashion and Entertaining industries. I successfully managed hundreds of thousands of AI interactions in contexts like Berkshire Hathaway, Dolce & Gabbana and others. Previously, I have spent the last decade building products and startups across Europe and the US in industries like Luxury Retail, Fintech, LegalTech, IoT, and Social Networking with Typescript, React, React Native, NodeJS, NestJS, Prisma, PostgreSQL, Python, Django, Flask and FastAPI.

Freelance Prompt Engineering Developer - RamKumar Manoharan
Freelance Prompt Engineering Developer5.0 (7 reviews)

As a Generative AI Engineer, I am responsible for developing, designing, and maintaining cutting-edge AI-based systems to ensure smooth and engaging user experiences. My role involves creating and developing generative models that have the ability to generate new content, such as images, text, and audio, based on patterns. I work across client teams to develop and architect Generative AI solutions using machine learning and other AI technologies. Additionally, I participate in activities which includes refining and optimizing prompts to improve the outcome of Large Language Models (LLMs). I also evaluate and select appropriate AI tools and machine learning models for tasks, as well as build and train working versions of those models using Python and other open-source technologies.

Freelance Prompt Engineering Developer - Mike Deck
Freelance Prompt Engineering Developer5.0 (7 reviews)

Business Intelligence Engineer with 10+ years of Looker/LookML experience and 1 year of Tableau experience. Former data scientist, web developer, and operations analyst. I'm happy to help you with building analytics solutions, whether it's just some quick questions or a longer consulting arrangement. I have worked within FAANG teams and other big tech organizations and have a great understanding of how things *should* work when the right structures are in place. I've seen enough examples of things breaking to have a good "sixth sense" with troubleshooting and take pride in my ability to solve urgent issues.

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Frequently asked questions

How long do Prompt Engineering 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 Prompt Engineering 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 Prompt Engineering request on Codementor, check out our article.

How much does it cost to hire a freelance Prompt Engineering developer?

We don’t charge anything when you post a freelance hiring request for Prompt Engineering 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 Prompt Engineering developers different?

We do a comprehensive technical and communications screen of all Prompt Engineering 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 Prompt Engineering 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 Prompt Engineering 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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