{"id":3472563,"url":"https://alion.io/job/mercor-c-engineer-codebase-specialist","title":"C Engineer - Codebase Specialist","company":{"id":4960,"name":"Mercor","domain":"mercor.com","url":"https://alion.io/company/mercor","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":true,"listed_via":null,"ats_vendor":"Ashby","truth_index":{"grade":"A","score":88,"open_postings":15,"ghost_share":0,"stale_share":0.267,"repost_share":0,"time_to_fill_p50_days":76,"computed_at":"2026-10-30T05:48:23Z"}},"role":"Industrial Engineering","role_family":"Industrial Engineering","seniority":null,"employment_type":"contractor","work_mode":"remote","remote_scope":"stated_countries","remote_scope_basis":"inferred_payroll_markers","remote_working_hours":null,"hiring_geo_confidence":"inferred","locations":[],"countries":[],"hiring_countries":["NG"],"hiring_countries_total":1,"salary":null,"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Okta","optional":false}],"status":"live","first_seen_at":"2026-09-21T12:59:09Z","employer_posted_date":null,"last_verified_at":"2026-09-21T12:59:09Z","board_verified":false,"closed_at":null,"days_open":38,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":38},"description":"About the jobMercor 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.\nPosition: Software Engineer, C — Codebase Q&A\nType:Contract\nCompensation:$130 per approved task\nLocation:Remote\nRole Responsibilities\nSelect tasks from a pre-validated pool of C repositories, each with an engineering question and a golden solution.\n\nExplore the repository to understand the subsystem, including relevant PR or issue history.\n\nRewrite task questions to challenge frontier coding agents while ensuring clarity and fairness.\n\nAdjust rubrics and foils to reward correct reasoning and reject incorrect answers.\n\nRun the full validation loop in Mercor Studio and iterate until every stage passes.\n\nDocument work in the task README and address reviewer feedback on returned tasks.\n\nQualifications\nMust-Have\n\n3+ years of professional software engineering experience with substantial production C.\n\nAbility to navigate large, unfamiliar C codebases and explain runtime behavior.\n\nComfort with preprocessor-heavy builds, platform conditionals, and manual memory management.\n\nExperience with databases, cryptography, networking protocols, or systems programming.\n\nAbility to use debuggers, sanitizers, tracing, and profilers.\n\nPrecise written English for crafting questions and rubrics.\n\nWorking Details\nFully remote and asynchronous work with team leads across US, India, and Nigeria.\n\nWork is performed in Mercor Studio; time tracked with Insightful and access provisioned through Okta.\n\nOnboarding requires identity verification, a background check, signed Terms of Work and CIIAA, a tax form, and passing a short calibration quiz.\n\nApplication Process (Takes 20–30 mins to complete)\nSubmit your resume or relevant technical background to get started.\n\nQualified applicants may be asked to complete a brief technical assessment or provide additional information.\n\nResources & Support\nFor details about the interview process and platform information, please check: \n\nFor any help or support, reach out to: \n\nPS: Our team reviews applications daily. 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