Software Engineer, C – Codebase Q&A
Employment Information
Report this job
Job expired or something wrong with this job?
Job Description
C engineer building runtime-grounded codebase Q&A tasks for Mercor’s AI agent training environments. Exploring major open-source systems and validating difficult engineering questions.
Responsibilities:
- Select tasks from a pre-validated pool of C repositories pinned to specific git commits
- 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
- Document work in task READMEs and submit for expert review
- Address reviewer feedback on returned tasks
Requirements:
- 3+ years of professional software engineering experience
- Substantial production C experience
- Ability to navigate large, unfamiliar C codebases and explain runtime behavior
- Comfort with preprocessor-heavy builds, platform conditionals, manual memory management, and autotools/CMake/Meson build graphs
- Experience with databases, cryptography, networking protocols, or systems programming is highly relevant
- Ability to use debuggers, sanitizers, tracing, and profilers
- Precise written English
- Identity verification, background check, signed Terms of Work and CIIAA, tax form, and passing a short calibration quiz required before task access
- Qualified applicants may be asked to complete a technical assessment or provide additional information
Benefits:
- Remote work
- Asynchronous work
- Payment per approved task
- Access to Mercor Studio
- Expert team lead support
- Reasonable accommodations upon request
- Up to $250 referral payment for each successful referral
Similar Jobs
Senior Oracle Software Developer
Senior Oracle developer building OCI functions, APIs, and Fusion Cloud integrations. Supporting CGI Federal’s government IT consulting and cloud modernization work.
Senior Full Stack Engineer
Senior Full Stack Engineer building and scaling a custom coaching and personal-development community platform. Owning backend-focused features, integrations, testing, and production reliability.
Senior Software Engineer
Senior Software Engineer owning Verisma’s regulated enterprise application systems. Building React and C#/.NET features, cloud-native integrations, and AI-assisted engineering practices.
Software Engineer, C – Codebase Q&A
C engineer creating runtime-focused codebase Q&A tasks for Mercor’s AI training datasets. Exploring production repositories and validating rubrics for AI-agent reasoning.
Software Engineer, TypeScript
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.
Senior Software Engineer – Java
Senior Java Software Engineer architecting secure, scalable cloud microservices for Tight Line. Leading technical delivery, mentoring engineers, and supporting production systems for global clients.
Senior Fullstack Engineer
Senior Fullstack Engineer architecting scalable Elixir and React systems for DICE’s live-entertainment ticketing platform. Driving fan engagement through growth-focused product development.
Senior Full-Stack Developer, C# / React
Desenvolvedor Fullstack sênior desenvolvendo APIs C# e interfaces React para a i4pro, líder brasileira em soluções SaaS para seguradoras. Construindo sistemas escaláveis, seguros e observáveis.
Senior Data Tech Lead
Senior Data Tech Lead leading architecture and engineering for a centralized Supply Chain data platform. Delivering scalable analytics solutions for CI&T’s global enterprise clients.
Technical Lead – Java
Líder Técnico Java no Grupo SysMap, ecossistema brasileiro de tecnologia e transformação digital. Liderando equipes, arquitetura e aplicações Java em projetos corporativos críticos.
Principal Software Engineer
Principal Software Engineer developing, testing, and documenting software systems at Motorola Solutions. Building technology that helps protect people, property, and communities.
Lead Software Engineer
Lead Software Engineer building scalable full-stack features for CoderPad’s technical interview platform. Leading architecture, AI-assisted development, testing, and production deployments for EMEA engineering.
Lead Engineer – Generalist
Lead engineer owning full-stack architecture, delivery, and customer migrations for Trimble Transportation’s logistics management software. Building scalable AI-assisted solutions across cloud, data, and production systems.
Lead Fullstack Engineer
Lead Fullstack Engineer developing Humana healthcare insurance software across front-end, back-end, databases, and infrastructure. Leading projects and advising executives on complex technology strategies.
Senior Software Engineer, Frontend – Auth Experiences
Senior frontend engineer building secure authentication, verification, and fraud experiences for Affirm’s pay-over-time platform. Delivering high-availability systems with React or Vue across web and mobile interfaces.
Senior Desarrollador Full Stack – Java, React
Desarrollador Full Stack Senior construyendo servicios financieros con Java, React y AWS. Diseñando APIs, interfaces y arquitectura event-driven para una plataforma financiera LATAM.
Lead Software Engineer – CIAM
M&T Bank Lead CIAM Engineer designing secure customer identity, authentication, and authorization solutions. Leading enterprise software architecture, development, governance, and technical coaching.
Software Engineer, Networking – Dataplane
Software Engineer building secure client networking software for Tailscale’s connectivity platform. Improving connectivity, performance, and reliability across distributed customer networks.
Software Engineer, Networking – Dataplane
Software Engineer building secure client-side networking and dataplane software for Tailscale's connectivity platform. Improving connectivity, performance, reliability, and customer network integrations.
GTM Engineer
GTM Engineer building Clay-centered AI and RevOps systems for ASG’s portfolio of software companies. Driving outbound infrastructure, pipeline, bookings, and rep performance.