Frontend Software Engineer (React, TypeScript or JavaScript) jobs in United States
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Mercor · 1 month ago

Frontend Software Engineer (React, TypeScript or JavaScript)

positionSan Francisco, CA
timeFull-time
remoteOnsite
seniorityMid, Senior Level
money$90/hr - $200/hr
date3+ years exp

Mercor is a San Francisco-based company specializing in connecting elite professionals with cutting-edge AI initiatives. They are hiring experienced frontend engineers to support high-impact research collaborations with leading AI labs, focusing on developing and validating coding benchmarks.

Artificial Intelligence (AI)Data Collection and LabelingEmploymentMachine LearningRecruitingSoftware
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H1B Sponsor Likelynote

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

Qualification

ReactTypeScriptJavaScriptDebuggingTechnical writing

Required

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

Company

Mercor

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Mercor is an AI-based hiring platform that improves the recruitment process by matching talent with opportunities tailored to their skills.
dateFounded in 2023
location
San Francisco, California, USA
people-size51-200 employees
web-link
https://mercor.com

H1B Sponsorship

Mercor has a track record of offering H1B sponsorships. Please note that this does not guarantee sponsorship for this specific role. Below presents additional info for your reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (7)

Funding

Current Stage
Growth Stage
Total Funding
$483.6M
Key Investors
FelicisBenchmarkGeneral Catalyst
2025-10-27Series C· $350M
2025-02-20Series B· $100M
2024-09-19Series A· $30M

Leadership Team

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Adarsh Hiremath
Co-Founder / CTO
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Company data provided by crunchbase