Frontend Software Engineer

Mercor; Toronto; Remote; CAD 125,000 - 150,000; Part time

Job summary

A forward-thinking AI company in Toronto is seeking experienced frontend engineers to develop coding benchmarks in React, TypeScript, or JavaScript. This part-time role offers flexible remote working hours, competitive compensation of $90/hr plus bonuses. Ideal candidates should have 3–10 years of experience, a relevant degree, and a strong proficiency in modern frontend technologies. Apply today to leverage your expertise in shaping intelligent systems.

Benefits

Flexible working hours

Daily payment via Stripe Connect

Lucrative bonuses per approved task

Qualifications

• 3–10 years of experience as a frontend engineer.
• Strong proficiency in React, TypeScript, or JavaScript.
• Experience with debugging, testing, and validating code.

Responsibilities

• Develop and validate coding benchmarks in React, TypeScript, or JavaScript.
• Ensure benchmark tasks include comprehensive unit and integration tests.
• Provide structured feedback on solution quality and clarity.

Skills

React

TypeScript

JavaScript

Debugging

Testing

Technical writing

Education

Degree in Software Engineering or Computer Science

Job description

Mercor is hiring experienced frontend engineers to support a variety of 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 React, TypeScript, or JavaScript 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 frontend engineer

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

• Strong proficiency in React, Typescript or Javascript

• 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

• $90 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

**About Mercor **Mercor is a San Francisco-based company specializing in connecting elite professionals with cutting-edge AI initiatives. Our investors include Benchmark, General Catalyst, Adam D’Angelo, Larry Summers, and Jack Dorsey. Thousands of professionals across engineering, research, and creative fields have partnered with Mercor on frontier projects shaping the future of AI.

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