AI Developer / AI Coding Engineer

Freelance AI Developer / AI Coding Engineer
About the Project
We are looking for an experienced AI Developer / AI Coding Engineer to join us on a freelance/contract basis to build, integrate, and maintain AI-powered applications and an AI Code Development Platform.
The ideal developer should have strong experience in LLM integration, AI agents, AI code generation, API integration, SaaS development, and production-ready application development.
What You Will Work On
Develop AI-powered web and mobile applications
Build an AI Code Development / AI Coding Platform
Integrate LLM APIs such as OpenAI and other AI providers
Develop AI agents and automated workflows
Implement AI code generation and code modification features
Build AI chat interfaces and conversational systems
Integrate text, image, audio, and video AI capabilities where required
Build API integrations and backend AI services
Develop authentication, user management, subscriptions, and usage limits
Integrate payment gateways and subscription systems
Develop scalable REST APIs
Database design and optimization
Debug, test, secure, and optimize AI applications
Deploy applications to production servers/cloud infrastructure
Maintain and improve existing AI applications
Required Skills
AI / LLM
OpenAI API
LLM integration
Prompt engineering
AI Agents
RAG
Function/Tool Calling
Structured outputs
AI workflow automation
Vector databases
Embeddings
Context management
AI code generation
Development
PHP / Laravel OR Node.js
Python
JavaScript / TypeScript
React / Next.js
REST APIs
MySQL / PostgreSQL
Git/GitHub
Docker
Cloud & Deployment
AWS / Google Cloud / Azure
VPS/Linux
Docker
CI/CD
Production deployment
API security
Preferred Experience
Experience with any of the following is a major advantage:
AI coding assistants
AI IDEs
AI SaaS platforms
Code-generation platforms
Multi-agent AI systems
Cursor-like coding workflows
Replit-like development environments
AI website/app builders
SaaS subscription platforms
Open-source LLMs
Claude / Gemini / OpenAI integrations
Supabase / Firebase
WebSocket / real-time applications
Important Requirements
We are looking for someone who can actually build and deliver production-ready software, not just provide tutorials or proof-of-concepts.
You should be able to:
✅ Understand an existing codebase
✅ Design scalable architecture
✅ Write clean and maintainable code
✅ Integrate AI APIs correctly
✅ Build features independently
✅ Debug complex AI/application issues
✅ Deploy applications to production
✅ Work with Git/GitHub
✅ Communicate clearly about development progress
Engagement
Freelance / Contract
Part-time or full-time depending on project requirements
Long-term opportunity for the right developer
Remote
Project-based or hourly
Multiple AI projects available
Compensation
Negotiable based on experience, technical skills, and project scope.
Please mention your hourly rate or expected project fee when applying.
How to Apply
Please send:
Your CV/Resume or developer profile
GitHub/portfolio link
Examples of AI projects you have built
Your experience with OpenAI/LLM APIs
Your experience building AI agents or AI coding systems
Your preferred technology stack
Your hourly rate
Your availability per week
Your estimated start date
Bonus
If you have previously built an AI coding assistant, AI developer tool, AI SaaS, AI agent platform, or code-generation application, please include a demo or GitHub repository.
We are looking for a long-term technical partner who can help us build and scale multiple AI products.
If you want, I can also create a short, high-conversion version specifically for Upwork/Freelancer, with a strong job title, screening questions, budget, milestones, and a technical test for applicants.