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Web developer

Mercor Toronto

Job Description

Backend Software Engineer: Python


Posted on January 02, 2026 by Mercor


Mercor is hiring experienced Python Engineers to support high-impact research collaborations with leading AI labs. Freelancers will help improve AI systems through work extending coding benchmarks that reflect real-world development across diverse languages and domains.


This is a unique opportunity to apply your engineering expertise toward shaping the next generation of intelligent systems.


Key Responsibilities



  • Develop and validate coding benchmarks in Python by curating issues, solutions, and test suites from real‑world repositories.

  • Ensure benchmark tasks include comprehensive unit and integration tests for solution verification.

  • Maintain consistency and scalability of benchmark task distribution.

  • Provide structured feedback on solution quality and clarity.

  • Debug, optimize, and document benchmark code for reliability and reproducibility.


Ideal Qualifications



  • 3?10 years of experience as a backend software engineer, ML engineer, or applied data scientist.

  • Degree in Software Engineering, Computer Science, or a related field.

  • Strong proficiency in Python.

  • Experience with debugging, testing, and validating code.

  • Comfortable with technical writing and attention to detail.


Project Timeline



  • Start Date: Immediate.

  • Duration: 1 month.

  • Commitment: Part‑time (15?20 hours/week).

  • Schedule: Fully remote and asynchronous, flexible working hours.


Compensation & Contract



  • $80 per hour plus lucrative bonus per approved task (1 task takes approximately 1 hour to complete).

  • Median average pay inclusive of bonuses is $200/hr.

  • Independent contractor.

  • Daily payment via Stripe Connect.


Application & Onboarding Process



  • Upload your resume.

  • AI interview: A short, 15‑minute conversational session to understand your background, experience, and interest in the role.

  • Brief assessment testing real‑world coding ability, technical depth, and debugging approach.

  • Follow‑up communication within a few days with next steps and onboarding details.


Apply today and leverage your software engineering expertise to help build the future of AI‑driven systems!


Location: Toronto, ON.


Work location: On site.


Salary: $200.00 DAY daily.


Terms of employment: Full time.


Starts as soon as possible.


Vacancies: 1 vacancy.


Source: Talent.com #88c6a5ca8c27.


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Frequently Asked Questions

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