Mercor

Principal Software Engineer

📍 Location
toronto, on
⏰ Job Type
Full-time
📅 Posted
June 04, 2026
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Job Description

About the job Mercor

connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors include

Benchmark ,

General Catalyst ,

Peter Thiel ,

Adam D'Angelo ,

Larry Summers , and

Jack Dorsey . Position:

Senior Open Source Engineer Type:

Contract Compensation:

$150/hour Location:

Remote Role Responsibilities Author and manage

Pull Requests (PRs)

to integrate new code into large, complex open-source codebases. Evaluate and enhance

AI model training

through active contributions to open-source repositories. Collaborate with

AI research teams

to improve

training data

quality and model outputs. Work

independently and asynchronously

to meet deadlines and deliver impactful code. Shape the future of open-source projects by providing structured feedback and ...

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