Senior Full-Stack Engineer — Python, APIs & MCP

Obsidian; San Francisco (CA); On-site; USD 100,000 - 150,000; Full time

Job summary

Obsidian is looking for experienced Senior Software Engineers to join a high-urgency project focused on closed-source application development.

The ideal candidates are full-stack developers who can work independently and contribute to both backend and frontend development. Candidates should have strong proficiency in Python, experience with API and MCP development, and a proven track record of maintaining production-grade applications.

Qualifications

• Multiple years of experience as a Full Stack Developer.
• Strong proficiency in Python.
• Experience with MCP and API development.

Responsibilities

• Design, develop, and maintain full‑stack applications.
• Build and integrate APIs and MCP-based systems.
• Collaborate closely with engineering and product teams.
• Write clean, scalable, and production-ready code.
• Troubleshoot, optimize, and improve application performance.
• Participate in architecture and technical design discussions.

Skills

Full Stack Development

Python

API Development

MCP

Job description

Obsidian is looking for experienced Senior Software Engineers to join a high-urgency project focused on closed-source application development.

The ideal candidates are full-stack developers who can work independently and contribute to both backend and frontend development. Candidates should have strong proficiency in Python, experience with API and MCP development, and a proven track record of maintaining production-grade applications.