Software Engineer, C - Codebase Q&A

Weekday (YC W21)

. Select tasks from a pre-validated pool of C repositories pinned to specific git commits .

Posted 9/17/2026contractRemote • United StatesMid-LevelSenior💰 $130 per dayWebsite

Core Competencies

Role fit

Core Competencies

Use this summary to align your resume positioning with the role.

Demonstrates extensive experience in C programming, particularly in navigating and manipulating complex codebases, while effectively documenting and communicating technical processes. Proficient in utilizing debugging tools and build systems to enhance software development and validation processes.

Highest-signal resume keywords

C ProgrammingCodebase ExplorationDebugging ToolsBuild Systems (Autotools/CMake/Meson)Technical Documentation

ATS Keywords

Tailor your resume

Applicant Tracking System Keywords

Tip: use these terms in your resume and cover letter to boost ATS matches.

Hard Skills

C ProgrammingMemory ManagementPreprocessor-Heavy BuildsDatabase ExperienceCryptographyNetworking ProtocolsSystems ProgrammingDebuggersSanitizersProfilers

Soft Skills

Precise Written English

Certifications & Qualifications

Identity VerificationBackground CheckSigned Terms of WorkCIIAATax Form

Industry Keywords

Reinforcement LearningAI AgentsSoftware ValidationTask DocumentationPull Request History

About the role

Key responsibilities & impact

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 task questions to challenge advanced coding agents while remaining well-defined
Adjust rubrics and foils to reward correct reasoning and reject plausible but incorrect answers
Run the full Studio validation loop: Check, Golden, Run, Analyze
Document work in task READMEs and submit tasks for expert review
Address reviewer feedback on returned tasks
Build codebase-exploration tasks for reinforcement-learning environments that train AI agents to reason about unfamiliar software repositories

Requirements

What you’ll need

3+ years of professional software engineering experience with substantial production C
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 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 calibration quiz required before task access
Qualified applicants may be asked to complete a technical assessment or provide additional information

Benefits

Comp & perks

Fully remote and asynchronous work
Payment of $130 per approved task
Expert team leads across US, India, and Nigeria time zones
Work performed in Studio
Onboarding and platform access through Okta
Every task reviewed by a second engineer and super reviewer before acceptance
Reasonable accommodations upon request