Senior Full Stack Developer

mercor; San Francisco (CA); Hybrid; GBP 83,000 - 135,000; Full time

Job summary

Mercor is hiring a Senior Software Engineer for a remote contract. You will design, develop, and maintain full-stack applications with Python, build APIs, and contribute to scalable MCP-based systems.

You will collaborate with engineering and product teams, write production-ready code, and help optimize performance. Strong communication and problem-solving are essential.

Qualifications

• Multiple years of experience as a Full Stack Developer.
• Strong proficiency in Python.
• Experience with MCP and API development.
• Excellent problem-solving and communication skills.

Responsibilities

• Design, develop, and maintain full-stack applications using Python.
• Build and integrate APIs and MCP-based systems.
• Collaborate with engineering and product teams to enhance system scalability.
• Write clean, scalable, production-ready code for robust performance.
• Troubleshoot, optimize, and improve application performance.
• Participate in architecture and technical design discussions.

Job description

About the job Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors include Benchmark , General Catalyst , Peter Thiel , Adam D'Angelo , Larry Summers , and Jack Dorsey . Position: Senior Software Engineer Expert Type: Contract Compensation: $80–$130/hour Location: Remote Role Responsibilities

• Design, develop, and maintain full-stack applications using Python .
• Build and integrate APIs and MCP-based systems .
• Collaborate closely with engineering and product teams to enhance system scalability.
• Write clean, scalable, and production-ready code for robust application performance.
• Troubleshoot, optimize, and improve application performance.
• Participate in architecture and technical design discussions to drive innovation.

Qualifications Must-Have

• Multiple years of experience as a Full Stack Developer.
• Strong proficiency in Python .
• Experience with MCP and API development .
• Ability to work at least 8 hours per day .
• Experience building and maintaining production-grade applications.
• Strong problem-solving and communication skills.

Application Process (Takes 20–30 mins to complete)

• Upload resume
• AI interview based on your resume
• Submit form

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