Backend Engineer (Python / JavaScript)

Backend Engineer (Python / JavaScript)

Crossing Hurdles

May 15, 2026June 29, 2026Nigeria
Job Description
Job Overview:
Short-Term Contract (4 weeks) for a Backend Engineer focusing on multi-agent benchmark tasks.

Duties and Responsibilities:
Build multi-agent benchmark tasks based on real-world open-source code changes such as bug fixes, migrations, and refactors. Work with the Harbor evaluation framework to run and validate tasks inside Docker environments. Write clear and precise task instructions specifying file paths, function signatures, expected behavior, and constraints. Design and implement Python-based verification scripts to validate correctness of agent-generated code changes. Create decomposition strategies that split complex code changes across multiple independent sub-agents. Run, debug, and refine tasks within containerized environments to ensure reproducibility and determinism. Evaluate task performance signals and improve task quality, clarity, and difficulty. Contribute to benchmark development for advanced AI coding agents.

Required Qualifications:
Strong years of experience in Python and JavaScript development. Experience with AI coding benchmarks (e.g., SWE-bench, Terminal-Bench). Strong experience reading and navigating large open-source codebases (e.g., Django, Flask, FastAPI, Node.js, or similar). Familiarity with Git workflows including pull requests, diffs, cherry-picking, and working with specific commits. Comfortable with Docker including writing Dockerfiles, building images, and debugging container issues. Experience writing test scripts using pytest, unittest, or custom assertion-based testing. Ability to write clear, precise, and unambiguous technical specifications. Ability to work independently in a remote environment.

Additional Notes:
Compensation: $15 per hour. Commitment: 20-40 hours per week with 4 hours overlap with PST. Application Process: Apply/Easy Apply and check email for application form, fill Google form, assessment link after shortlisting to be completed within 24 hours.

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