MCP Engineer / AI Backend Engineer

Ruby Labs

Remote regions

Global

Benefits

Unlimited PTO

MCP Development:

  • Design, build, and maintain MCP servers and MCP-based integrations.
  • Implement MCP tools, resources, prompts, and backend interfaces.
  • Build reliable communication between AI agents, tools, and backend systems.

Backend Development:

  • Build and maintain backend services using TypeScript and Node.js.
  • Work with backend frameworks such as Hono, Fastify, NestJS, and Next.js backend/API routes.
  • Implement REST APIs, internal endpoints, service-to-service integrations, and automation flows.

AI & Prompt Engineering:

  • Build AI-powered workflows and internal automation tools.
  • Design prompts, system instructions, and tool definitions for reliable AI behavior.
  • Improve the quality, consistency, and predictability of AI outputs.

Debugging & Reliability:

  • Investigate and fix issues across MCP servers, backend services, Cloudflare Workers, AI workflows, and API integrations.
  • Improve logging, monitoring, and observability for AI/backend systems.
  • Identify root causes of unreliable tool behavior or incorrect AI outputs.

Ruby Labs

Ruby Labs is a leading tech company that creates and operates innovative consumer products across health, education, and entertainment. We are an innovative team driving the future of consumer-led products, and we're always looking for passionate individuals to join us.

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