Software Engineer - Backend Specialist

Mercor; San Francisco (CA); On-site; USD 90,000 - 130,000; Full time

Job summary

Obsidian is hiring Software Engineers for its RL Studio platform. You will develop MCP servers and integrate software into sandbox environments, ensuring stability and production readiness.

The ideal candidate has strong Python skills and experience with APIs and Docker. Key duties include building applications, testing, and meeting deployment requirements.

Qualifications

• Strong proficiency in Python with experience in backend systems.
• Familiarity with APIs, Docker, Linux, and local testing workflows required.

Responsibilities

• Build MCP servers in Python using FastMCP.
• Integrate web or desktop applications into RL Studio.
• Test apps locally and debug build, runtime, and permission issues.

Skills

Strong Python skills

Experience with APIs

Backend systems and debugging

Familiarity with Docker

Linux environments

Service configuration

Problem-solving skills

Attention to detail

Tools

Docker

Linux

Job description

Role Overview

We’re hiring Software Engineers to build and ship apps for Mercor’s RL Studio platform. The role involves developing MCP servers and sometimes BUAs, integrating real software into sandbox environments, and ensuring apps are stable, testable, and production-ready.

What You’ll Do

• Build MCP servers in Python using FastMCP
• Integrate web or 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 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
• 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