Senior Python Engineer: Legacy Code Stabilizer & Builder

Tech Mirrors; San Jose (CA); On-site; USD 120,000 - 150,000; Full time

Job summary

Tech Mirrors seeks a Full Stack Python Developer to own stabilization and enhancement of an existing codebase in San Jose. The role emphasizes understanding legacy structures, debugging, and safe extension of features while maintaining compatibility with current APIs and databases.

You will balance fixing existing systems with building selective improvements, ensure robust logging and error handling, and provide efficient incident resolution in a fast-paced environment.

Qualifications

• Strong Python development and debugging.
• Ability to understand and troubleshoot legacy codebases.
• Experience enhancing existing code without unnecessarily redesigning it.
• Strong root-cause analysis and production issue resolution.
• Ability to fix, maintain, and extend existing applications.
• Comfortable following established/legacy coding patterns and frameworks.
• Ability to develop new functionality in the same legacy style for compatibility and consistency.
• Good understanding of APIs, databases, logging, exception handling, and integrations.
• Strong code-reading skills and ability to quickly understand undocumented code.
• Experience with production support, incident resolution, and performance troubleshooting.
• Ability to balance "fix what exists" vs. "build new" without introducing unnecessary modernization risks.

Responsibilities

• Stabilize an aging codebase and understand existing workflows.
• Implement enhancements that preserve legacy style and APIs for compatibility.
• Troubleshoot production issues, perform root-cause analysis, and resolve incidents.
• Read and understand undocumented code to extend functionality safely.
• Collaborate with teams to maintain coding standards and patterns.

Skills

Python development

Debugging

Legacy code understanding

API integration

Production support

Job description

Tech Mirrors seeks a Full Stack Python Developer to own stabilization and enhancement of an existing codebase in San Jose. The role emphasizes understanding legacy structures, debugging, and safe extension of features while maintaining compatibility with current APIs and databases.

You will balance fixing existing systems with building selective improvements, ensure robust logging and error handling, and provide efficient incident resolution in a fast-paced environment.