Frontend Developer - Fully Remote

$85 per hour

Full-time

Mercor

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: Frontend Engineer (Coding Agent Experience)

Type: Contract

Compensation: $85/hour

Location: Remote

Role Responsibilities

Use frontier AI coding agents to complete and evaluate complex engineering tasks.
Review model-generated frontend code for correctness, quality, maintainability, accessibility, and performance.
Identify bugs, edge cases, and failure modes in model outputs.
Compare outputs from multiple frontier models and assess their strengths and weaknesses.
Apply professional engineering judgment to realistic frontend engineering scenarios.

Qualifications

Must-Have

2+ years of professional frontend engineering experience.
Experience building modern web applications using React , TypeScript , JavaScript , or similar technologies.
Regular use of AI coding agents such as Cursor, Claude Code, Codex, Windsurf, Gemini CLI, or similar tools.
Ability to evaluate model-generated frontend implementations, UI architecture, and performance optimizations.

Preferred

Experience working on large-scale consumer or enterprise applications.

Compensation & Legal

$400 per accepted task
Compensation tied to accepted work

Application Process (Takes 20–30 mins to complete)

Upload resume
AI interview based on your resume
Submit form

Resources & Support

For details about the interview process and platform information, please check:
For any help or support, reach out to: View email address on jobs.jobcopilot.com

PS: Our team reviews applications daily. Please complete your AI interview and application steps to be considered for this opportunity.

Apply

Vacancy posted more than 2 months ago

Similar jobs that could be interesting for youBased on the Frontend Developer - Fully Remote in Toronto, ON vacancy

Frontend Engineer - Fully Remote
$50 - $80 per hour
...years experience Type: Contract Compensation: $50–$80/hour Location: Remote Commitment: 20 hours/week Role Responsibilities Develop and maintain React applications to enhance user experience. Collaborate with cross-...
Remote work
Full time
Contract work
Summer work
Mercor
Toronto, ON
more than 2 months ago
Frontend Developer - Angular
$100k - $110k per year
...About the Job: Infoya is seeking a Senior Software Developer with deep Angular expertise to own frontend features from design through delivery. You will work independently, guide other developers through code reviews and troubleshooting, and collaborate with architects, business...
Suggested
Permanent employment
Full time
Work at office
Local area
Infoya
Toronto, ON
14 days ago
Frontend Developer, Intermediate (Remote Canada)
$90k - $110k per year
...find plenty of reasons to SMILE! The Intermediate Front End Developer is a technical role that supports building and maintaining the user... ...operational excellence. Some of the benefits we offer: * Remote Work Environment * Flexible Time Away From Work Policy...
Remote job
Remplacement
Full time
Flexible hours
Smile Digital Health
Toronto, ON
a month ago
Backend Developer - Fully Remote
$85 per hour
...Position: Backend Engineer (Coding Agent Experience) Type: Contract Compensation: $85/hour Location: Remote Role Responsibilities Use frontier AI coding agents to complete and evaluate complex engineering tasks. Review model...
Remote work
Full time
Contract work
Summer work
Mercor
Toronto, ON
more than 2 months ago
Python Developer - Fully Remote
$40 - $50 per hour
...Contract Compensation: $40–$50/hour Location: Remote Role Responsibilities Build MCP servers in... ...similar frameworks. Experience integrating third-party apps or developer tools. Familiarity with web apps, databases, and containerized...
Remote work
Full time
Contract work
Summer work
Local area
Mercor
Toronto, ON
more than 2 months ago
Open Source Developer - Fully Remote
$150 per hour
...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...
Remote work
Full time
Contract work
Summer work
Immediate start
Mercor
Toronto, ON
more than 2 months ago
Remote Senior Frontend React Engineer
...About the role: We are seeking a Frontend Developer to help build a best-in-class, consumer-... ...Phoenix & Raven telehealth clinicians work remotely, providing the highest quality care for... ...includes standard healthcare coverage, a remote-first holiday season, and holistic...
Remote work
Full time
Internship
The Phoenix
Toronto, ON
a month ago
Senior Front End Developer / Sénior Développeur d'applications Front End
$130k - $170k per year
...improvement - where every engineer can experiment, own, and make real impact. The Role We’re looking for a Senior Front-End Software Developer who is passionate about building exceptional user experiences and shaping a scalable, modern front-end architecture. You take full...
Long term contract
Full time
Work at office
3 days per week
Air-Tek
Toronto, ON
more than 2 months ago
Document Specialist - Fully Remote
$60 - $70 per hour
...Contract Compensation: $60–$70/hour Location: Remote Role Responsibilities Evaluate and utilize Word on macOS for long-form document authoring and review. Develop expertise in styles, referencing, and review processes for legal ,...
Remote work
Full time
Contract work
Summer work
Flexible hours
Mercor
Toronto, ON
27 days ago
FP&A Specialist - Fully Remote
$70 - $110 per hour
..., and Jack Dorsey . Position: FP&A Expert Type: Contract Compensation: $70–$110/hour Location: Remote Role Responsibilities Review and QA AI-agent rollouts in Financial Forecaster . Judge agent answers against the actual...
Remote work
Full time
Contract work
Summer work
Mercor
Toronto, ON
22 days ago
Consulting Specialist - Fully Remote
$100 - $150 per hour
...Dorsey . Position: Management Consulting Expert Type: Contract Compensation: $100–$150/hour Location: Remote Role Responsibilities Evaluate AI-generated artifacts for usability in a consulting context. Identify factual,...
Remote work
Full time
Contract work
Summer work
Work at office
Mercor
Toronto, ON
18 days ago
AI Safety Specialist - Fully Remote
$48 - $62 per hour
...Position: AI Safety Experts — English & Finnish Type: Contract Compensation: $48–$62/hour Location: Remote Role Responsibilities Red team conversational AI models and agents to identify jailbreaks, prompt injections, misuse cases...
Remote work
Full time
Contract work
Summer work
Mercor
Toronto, ON
4 days ago
UI Designer - Fully Remote
$50 - $80 per hour
...and Jack Dorsey . Position: Visual Designer Type: Contract Compensation: $50–$80/hour Location: Remote Commitment: 10–20 hours/week Role Responsibilities Write, review, and validate prompt-based questions to train AI...
Remote work
Contract work
Summer work
Mercor
Toronto, ON
20 days ago
Product Developer (Remote)
$80k - $95k per year
*This is a remote role open to candidates based in Ontario.* We're looking for a Product Developer to join our team as we enter our next stage of growth. As a Product Developer, you'll play a central role in how we build best-in-class SaaS products and AI agents across...
Remote job
Full time
Internship
Traction Rec
Toronto, ON
4 days ago
Blasting Specialist - Fully Remote
$65 - $75 per hour
...Dorsey . Position: Commercial Blasting Engineer Type: Contract Compensation: $65–$75/hour Location: Remote Role Responsibilities Write challenging single-turn prompts in energetic materials and propulsion . Label them as benign...
Remote work
Hourly pay
Full time
Contract work
For contractors
Summer work
Flexible hours
Mercor
Toronto, ON
26 days ago
Backend Engineer - Fully Remote
$55 - $65 per hour
...Position: Application Users - PyCharm on macOS - Code Type: Contract Compensation: $55–$65/hour Location: Remote Role Responsibilities Utilize PyCharm on macOS for specialized application tasks. Capture high-resolution...
Remote work
Full time
Contract work
Summer work
Mercor
Toronto, ON
27 days ago
Full Stack Django Developer (Frontend Focus) - Contract
$65k - $70k per year
...Description Position Summary The Full Stack Django Developer (Frontend Focus) is responsible for the design, development, and maintenance of the in-house software that Tayco's plant runs on, including label printing, assembly tracking, machine downtime reporting, and...
Full time
Contract work
Flexible hours
Shift work
1 day per week
Brc Group Ltd
Toronto, ON
26 days ago
Explosives Specialist - Fully Remote
$65 - $75 per hour
...Position: Energetic Materials Expert for Redteaming Type: Contract Compensation: $65–$75/hour Location: Remote Role Responsibilities Write challenging single-turn prompts in the domain of explosives and energetic materials. Label them...
Remote work
Full time
Contract work
Summer work
Mercor
Toronto, ON
26 days ago
Radiological Safety Specialist - Fully Remote
$65 - $75 per hour
...Contract Compensation: $65–$75/hour Location: Remote Role Responsibilities Write challenging single-turn prompts... ...answers with technical reasoning for correct responses. Develop prompts that sit on the dual-use line, ensuring models draw the...
Remote work
Full time
Contract work
Summer work
Mercor
Toronto, ON
26 days ago
Graphic Designer - Fully Remote
$30 - $40 per hour
...Application Users - Adobe Illustrator on Windows - Generalist Type: Contract Compensation: $30–$40/hour Location: Remote Role Responsibilities Utilize Adobe Illustrator on Windows for vector illustration, logo, and layout design....
Remote work
Full time
Contract work
Summer work
Flexible hours
Mercor
Toronto, ON
27 days ago
Apple Platform Specialist - Fully Remote
$60 - $70 per hour
...Contract Compensation: $60–$70/hour Location: Remote Role Responsibilities Evaluate and utilize macOS Sonoma... ...meet project deadlines and improve AI model performance . Develop and implement strategies for effective window and Space...
Remote work
Full time
Contract work
Summer work
Mercor
Toronto, ON
27 days ago
Code Editor Specialist - Fully Remote
$55 - $65 per hour
...Contract Compensation: $55–$65/hour Location: Remote Role Responsibilities Evaluate and utilize Visual... ...Collaborate asynchronously with teams to ensure effective use of developer tools . Maintain flexibility in working hours while...
Remote work
Full time
Contract work
Summer work
Mercor
Toronto, ON
27 days ago
Medical Content Specialist - Fully Remote
$94 - $119 per hour
...Position: Applied Health & Medicine Benchmark Specialist Type: Contract Compensation: $94–$119/hour Location: Remote Commitment: 10+ hours/week Role Responsibilities Author original health and medicine questions to test deep...
Remote work
Full time
Contract work
Summer work
Mercor
Toronto, ON
19 days ago
Effects Engineering Specialist - Fully Remote
$65 - $75 per hour
...Dorsey . Position: Propulsion & Effects Engineer Type: Contract Compensation: $65–$75/hour Location: Remote Role Responsibilities Write challenging single-turn prompts in propulsion and energetic materials . Classify them as...
Remote work
Full time
Contract work
Summer work
Mercor
Toronto, ON
24 days ago
Voice Acting Specialist - Fully Remote
$45 per hour
...Position: French-Canadian Professional Voice Actor Type: Contract Compensation: $45–$300/hour Location: Remote Commitment: 2–10 hours/week Role Responsibilities Collaborate with a leading AI lab to improve their model's audio...
Remote work
Full time
Contract work
Summer work
Mercor
Toronto, ON
27 days ago
Astrophysics Specialist - Fully Remote
$70 - $90 per hour
...Relativity, Astrophysics & Cosmology) Type: Contract Compensation: $70–$90/hour Location: Remote Role Responsibilities Develop high-quality data by creating challenging problems in General Relativity , Astrophysics , and Cosmology ....
Remote work
Full time
Contract work
Summer work
Mercor
Toronto, ON
more than 2 months ago
Cosmology Specialist - Fully Remote
$70 - $100 per hour
...Contract Compensation: $70–$100/hour Location: Remote Commitment: 15–20 hours/week Role Responsibilities... ...problems, from querying simulations to interpreting outputs. Develop experimental strategies to recover hidden information from data,...
Remote work
Full time
Contract work
Summer work
Mercor
Toronto, ON
more than 2 months ago
Banking Specialist - Fully Remote
$90 - $110 per hour
...Contract Compensation: $90–$110/hour Location: Remote Commitment: 15–20 hours/week Role Responsibilities... ...ensuring precise instruction following and accurate outputs. Develop complex, multi-step requests using real-world financial documents...
Remote work
Full time
Contract work
Summer work
Mercor
Toronto, ON
more than 2 months ago
Detective Specialist - Fully Remote
...Contract Compensation: $1500–$1700 Location: Remote Duration: 3–4 weeks Commitment: 20–40 hours/week... ...requests within your professional domain. Review peer-developed deliverables to improve AI research . Diagnose and solve...
Remote work
Hourly pay
Full time
Contract work
Summer work
Immediate start
Trial period
Flexible hours
Shift work
Mercor
Toronto, ON
more than 2 months ago
Office Manager - Fully Remote
$45 - $60 per hour
...Contract Compensation: $45–$60/hour Location: Remote Role Responsibilities Build long-horizon admin tasks... ...calendar triage, multi-timezone scheduling, and travel booking. Develop expense and procurement tasks such as expense reports and...
Remote work
Hourly pay
Full time
Contract work
For contractors
Summer work
Work at office
Mercor
Toronto, ON
more than 2 months ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Frontend Developer - Fully Remote. Be the first to apply!