Backend Engineer

Toronto, Ontario, Canada
Remote
Posted Oct 7, 2026
1 position

US$50–US$100 / hour

Opens LinkedIn

Employment type: Contract
Experience level: Mid-level · 2+ years
Posting language: English
Working hours: 40 hours per week
Location requirements: Country, Toronto, Ontario, Canada
Seniority: Not Applicable

Job summary

Complete software engineering tasks for AI training and evaluation projects, including code review, evaluation, and original task creation. Assess code and model outputs for correctness and quality, and deliver clear, well-documented work independently.

Job details

AfterQuery is looking for experts with experience in software engineering, computer science, or app/web development to help train and evaluate AI models. This is a remote, project-based role: qualify once through a single assessment and receive ongoing project matches spanning code review, evaluation, and original task creation. Pay ranges from $50 to $100/hour depending on the projects you qualify into. Why Apply Competitive Pay: $50–$100/hour across the project pool One Assessment, Ongoing Matches: qualify once, get matched to projects continuously Flexible Engagement: fully remote and asynchronous, on your own schedule Responsibilities Complete software engineering tasks across a range of AI training and evaluation projects Review and evaluate code and model outputs for correctness and quality Deliver clear, well-documented work independently Required Qualifications 2+ years of real-world software engineering experience (full-time or substantive internships count) Strong fundamentals in at least one major programming language Reliable, detail-oriented, and able to work independently Company Description AfterQuery is a research lab investigating the boundaries of artificial intelligence through novel datasets and experimentation. We're backed by top investors, including Y Combinator and Box Group, and support all leading AI labs.

What you’ll do

Requirements

Applicants need at least two years of real-world software engineering experience, including qualifying full-time work or substantive internships. They must have strong fundamentals in at least one major programming language and be reliable, detail-oriented, and able to work independently.