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OSS Contributors; CTO​/Founders

Job in Toronto, Ontario, M5A, Canada
Listing for: Mercor
Full Time, Part Time position
Listed on 2026-01-02
Job specializations:
  • Security
    Cybersecurity, Data Security
Job Description & How to Apply Below
Position: OSS Contributors (CTO/Founders)

Mercor is seeking current or former CTOs or Founders with direct access and authority over their organization’s private codebase to partner on high-impact AI training and evaluation initiatives. You’ll be working with us and the AI company we engage to securely use your code to build realistic evals and, where permitted, train/improve coding models.

What you’ll do

  • Authorize & enable access:
    Verify you have the legal authority to grant a limited license for evaluation and (if agreed) training use; coordinate secure repository access (read-only, scoped).

  • Curate high-value datasets:
    Select representative modules/services, strip or mask secrets/PII, and define inclusion/exclusion rules.

  • Design realistic evaluations:
    Create task suites spanning your stack (e.g., refactors, bug-fixes, feature diffs, tests, performance work), grounded in your production code.

  • Develop test harnesses:
    Build/guide test cases and scoring that reflect real engineering constraints (builds, CI, style, coverage, perf).

  • Analyze outcomes:
    Review model behavior on your code, highlight failure modes, and propose improvements aligned to your architecture.

  • Ensure compliance & security:
    Partner with us on data handling (DPA/MSA/SOW), audit logs, redaction, secret scanning, and access revocation.

You’re a great fit if you

  • Are a CTO/founder (current or former) who controls or can authorize access to a substantial, production codebase (mono-repo or multi-service).

  • Can grant a time-boxed, purpose-limited license for evaluation and—if mutually agreed—training on selected code segments.

  • Have deep knowledge of your system’s architecture, tooling, and standards (Git, CI/CD, testing, observability).

  • Are fluent in one or more of: Python, Java, C/C++, JavaScript, Type Script (others welcome).

  • Can collaborate asynchronously with researchers/engineers and move quickly with minimal oversight.

  • Are an active OSS contributor on Git

Role details

  • Engagement:
    Part-time, flexible, 100% remote/asynchronous.

  • Scope:
    Evaluation-only by default; training usage optional and controlled by written agreement (purpose-limited, revocable).

  • Security:
    Read-only, least-privilege access; optional on-prem/VPC workflows; comprehensive auditability.

Compensation & legal

  • You’ll be engaged as an hourly contractor via Mercor; payments weekly via Stripe Connect.

  • For qualifying partners, we can structure separate, limited licenses (with fees) for evaluation and/or training use of selected code assets.

  • All work is governed by mutually executed MSA/SOW and data protection terms.

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