MCP Engineer / AI Backend Engineer
New
SpainFull-Time
Salary not disclosed
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Job Details
- Required Skills
- Node.jsTypeScriptNest.jsNext.jsRESTful APIsPrompt Engineering
Requirements
- Strong professional experience with TypeScript and Node.js in backend development
- Experience building REST APIs, backend services, or distributed systems
- Familiarity with backend frameworks such as Hono, Fastify, NestJS, or Next.js API routes
- Experience with serverless or edge environments, ideally Cloudflare Workers or similar
- Solid understanding of API design, authentication, logging, error handling, and system observability
- Hands-on experience integrating services and building automation or internal tools
- Strong interest or experience in AI systems, LLMs, and prompt engineering
- Ability to write clean, maintainable, production-ready code with strong debugging skills
- High ownership mindset and comfort working independently in fast-moving environments
Responsibilities
- Design, build, and maintain MCP servers and MCP-based integrations, ensuring reliable communication between AI agents and backend systems
- Develop scalable backend services using TypeScript and Node.js, leveraging frameworks such as Hono, Fastify, NestJS, or Next.js APIs
- Build and deploy serverless/edge solutions using Cloudflare Workers and related services (KV, Durable Objects, Queues, R2, D1)
- Create and optimize AI-powered workflows, including prompt design, tool definitions, and LLM integrations
- Implement APIs, automation flows, and service-to-service integrations with strong focus on reliability, observability, and maintainability
- Debug and improve system behavior across MCP infrastructure, backend services, and AI workflows
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