This job post has expired on May 16, 2026. It is likely that the position has already been filled.
Software Engineer at Mercor
posted 5 months agoSoftware Engineer | $40–50/hr | Worldwide Remote
Mercor is seeking skilled Software Engineers to build and ship applications for the RL Studio platform. You'll develop MCP servers, integrate real-world software into sandbox environments, and ensure apps are stable, testable, and production-ready. This is a contractor role ideal for engineers who thrive in backend and infrastructure-focused work.
What You'll Do
- Build MCP servers in Python using FastMCP
- Integrate web and desktop applications into RL Studio
- Work with APIs, Docker, Linux environments, and service configuration
- Implement populate/snapshot hooks for app state management
- Test apps locally and debug build, runtime, and permission issues
- Ensure apps meet platform validation and deployment requirements
What We're Looking For
- Strong Python development skills
- Experience with APIs, backend systems, and debugging
- Familiarity with Docker, Linux, and local testing workflows
- Ability to work with configuration files and deployment pipelines
- Strong problem-solving skills and attention to technical detail
Nice to Have
- Experience with FastMCP or similar frameworks
- Experience integrating third-party apps or developer tools
- Familiarity with web apps, databases, and containerized environments
How to apply for this role
- Upload your resume — keep it up-to-date and in English. Mercor will auto-fill your profile from it.
- Complete the AI interview — a 15-minute conversation about your experience. Be ready to discuss specific projects and challenges you've solved.
- Submit your application — only about 20% of applicants finish all the steps, so completing yours puts you well ahead.