Senior Software Development Engineer

Mercor

Full-time toronto, montreal (administrative region), calgary, vancouver, winnipeg, quebec, edmonton, ottawa, mississauga, moncton, ontario, quebec, alberta, metro vancouver regional district, manitoba, capitale nationale, division no. 11, ontario, peel region, moncton parish IT & Technology

Posted:

June 08, 2026

Location:

toronto, montreal (administrative region), calgary, vancouver, winnipeg, quebec, edmonton, ottawa, mississauga, moncton, ontario, quebec, alberta, metro vancouver regional district, manitoba, capitale nationale, division no. 11, ontario, peel region, moncton parish, Canada

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 Details 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 op...
                

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Job Overview

Job Type: Full-time

Location: toronto, montreal (administrative region), calgary, vancouver, winnipeg, quebec, edmonton, ottawa, mississauga, moncton, Canada

Posted: June 08, 2026

Deadline: July 18, 2026