Software Engineer, TypeScript
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Job Description
TypeScript engineer creating runtime-grounded codebase Q&A tasks for Mercor’s AI-training datasets. Exploring production repositories, refining rubrics, and validating tasks for coding agents.
Responsibilities:
- Build difficult codebase-exploration tasks involving production TypeScript and JavaScript repositories
- Select tasks from a pre-validated pool of pinned TypeScript repositories with engineering questions, rubrics, foils, and golden solutions
- Explore repositories and relevant pull-request or issue history to understand subsystems
- Rewrite questions to challenge frontier coding agents while remaining well-defined and answerable
- Adjust rubrics and foils to reward correct reasoning and reject plausible-but-wrong answers
- Run the full validation loop in Mercor Studio — Check, Golden, Run, Analyze — and iterate until all stages pass
- Document work in task READMEs and submit tasks for expert review
- Address reviewer feedback on returned tasks
- Complete work in Mercor Studio with time tracked by Insightful and access provisioned through Okta
- Work is reviewed by a second engineer and a super reviewer before acceptance
Requirements:
- 3+ years of professional software engineering experience
- Substantial production TypeScript experience
- Ability to navigate large, unfamiliar TypeScript monorepos and explain runtime behavior
- Fluency in advanced type systems, module resolution, bundlers and transpilers, and Node and browser runtimes
- Comfort reading compiler and plugin internals
- Experience with developer tooling, compilers, test frameworks, GraphQL servers, or state machines highly relevant
- Precise written English
- Comfortable with git at commit level, containerized environments, and command-line tooling
- Must complete identity verification, background check, signed Terms of Work and CIIAA, tax form, and short calibration quiz before task access
- Qualified applicants may be asked to complete a brief technical assessment or provide additional information
Benefits:
- Remote work
- Fully asynchronous work
- Payment of $130 per approved task
- Expert team leads across US, India, and Nigeria time zones
- Identity verification, background check, signed Terms of Work and CIIAA, tax form, and calibration quiz as onboarding support/process
- Up to $250 referral bonus for each successful referral
- Reasonable accommodations upon request
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