Senior Fullstack Software Engineer (Python) - AA, Remote: Colombia - Costa Rica,

Gorilla Logic is looking for a Senior Software Engineer, Full-Stack with strong backend expertise in Python to join an established engineering team building and scaling an automated evaluation platform for agent-oriented software products.

This is a backend-heavy, hands-on engineering role focused on building production services and durable workflows that evaluate third-party applications through APIs and browser-driven interactions.

You will work with significant autonomy, taking technical problems from discovery and design through implementation, testing, and production release.

You’ll collaborate directly with a US-based client team and cross-functional partners while working with technologies including Python, FastAPI, durable execution frameworks, Docker, Kubernetes, Argo CD, and AWS.

Responsibilities

Design, build, and maintain production backend services using Python and FastAPI. Build and extend systems that orchestrate automated evaluations of third-party software products. Develop long-running background jobs and durable workflows that are resumable, reliable, and observable.

Integrate with third-party APIs and systems, including authentication, rate limiting, retries, partial failures, and changing external contracts. Build and improve browser-driven automation workflows when APIs are unavailable or insufficient.

Instrument evaluation workflows to ensure results and failures are measurable, reproducible, traceable, and easy to diagnose. Analyze evaluation results and continuously improve configurations, fidelity, and coverage. Design solutions that are scalable, maintainable, observable, and production ready.

Build, test, and maintain containerized applications deployed through established CI/CD and Kubernetes environments. Use AI-assisted and agentic software engineering tools throughout planning, development, testing, and maintenance.

Take ambiguous technical requirements and independently develop practical, defensible implementation approaches. Identif