AI Full-Stack Developer Needed for AI Agents, Automation & SaaS Development
Worldwide
We’re looking for an experienced AI-Native Full-Stack Developer to help us build and improve AI-powered products, automation workflows, and SaaS applications. The ideal developer should be comfortable working across both AI/automation and traditional full-stack development. We’re not looking for someone who only connects an LLM to an API — we need someone who can understand the bigger system, build reliable backend logic, create the frontend, integrate external services, and take features through deployment. What You’ll Be Working On Depending on the project, responsibilities may include: Building and integrating AI agents and AI assistants Developing LLM-powered features using OpenAI and/or Claude Creating RAG pipelines and tool-calling workflows Building custom MCP servers and integrations Automating business processes using n8n, Make, webhooks, and APIs Developing SaaS features using Next.js, React, TypeScript, Node.js, NestJS, or Python Designing and integrating PostgreSQL, Supabase, or MongoDB databases Connecting third-party APIs and external services Implementing authentication, user roles, dashboards, and billing Working with Stripe and other SaaS integrations Deploying applications using AWS, Docker, and CI/CD Debugging and improving existing AI workflows and applications What We’re Looking For You should have hands-on experience building real applications, not just prototypes. We value someone who can: Translate a business requirement into a practical technical solution Design clean and maintainable application architecture Build AI features that handle real-world edge cases Develop both frontend and backend components Integrate multiple APIs and services Troubleshoot existing systems independently Communicate clearly and provide regular progress updates Work in milestones and deliver production-ready features Preferred Tech Stack Frontend: Next.js, React, TypeScript, Tailwind CSS Backend: Node.js, NestJS, Python, FastAPI AI: OpenAI, Claude, RAG, AI Agents, LLMs, Tool Calling, MCP Automation: n8n, Make, Webhooks Database: PostgreSQL, Supabase, MongoDB Infrastructure: AWS, Docker, Git, CI/CD Payments: Stripe You don’t need to use every technology listed above, but strong full-stack experience combined with AI development and automation is important. How We’ll Work We’re looking for a developer who can take ownership of a feature or project from requirements → architecture → development → testing → deployment. We prefer clean, modular code and practical solutions over unnecessary complexity. Clear communication and consistent delivery are important to us. If you’re interested, please send: A short introduction about your experience with AI agents, automation, and full-stack development 2–3 relevant projects you’ve built Your experience with MCP, n8n/Make, RAG, or LLM integrations Your availability and preferred working arrangement We’re open to starting with a smaller task or milestone and expanding the engagement based on the quality of the work.
$15.00
Fixed-price- Entry levelExperience Level
- Remote Job
- One-time projectProject Type
Skills and Expertise
Activity on this job
- Proposals:15 to 20
- Last viewed by client:last week
- Interviewing:1
- Invites sent:1
- Unanswered invites:0
About the client
- SwedenStockholm5:25 AM
Explore similar jobs on Upwork
How it works
Create your free profileHighlight your skills and experience, show your portfolio, and set your ideal pay rate.
Work the way you wantApply for jobs, create easy-to-by projects, or access exclusive opportunities that come to you.
Get paid securelyFrom contract to payment, we help you work safely and get paid securely.
About Upwork
- 4.9/5(Average rating of clients by professionals)
- G2 2021#1 freelance platform
- 49,000+Signed contract every week
- $2.3BFreelancers earned on Upwork in 2020
Find the best freelance jobs
Growing your career is as easy as creating a free profile and finding work like this that fits your skills.
Trusted by