C++ Developer - Internal Tooling & Optimization

What You'll Do

• Design, build, and optimize high-performance C++ systems supporting AI data pipelines and evaluation workflows
• Develop full-stack tooling and backend services for large-scale data annotation, validation, and quality control
• Profile and refactor existing C++ codebases to eliminate bottlenecks and improve reliability, performance, and safety
• Embed scripting languages within C++ applications to create flexible, extensible internal tools
• Identify edge cases and failure modes in complex data and system behavior — then implement scalable fixes
• Collaborate with research and engineering teams to align tooling with model training and evaluation needs
• Participate in synchronous design reviews to iterate on system architecture and implementation decisions

Who You Are

• 3–5+ years of professional experience writing production-grade C++
• Strong full-stack developer background with a deep systems programming foundation
• Experienced at embedding scripting languages (Python, Lua, etc.) within C++ applications to build flexible tooling
• Skilled at profiling and optimizing data processing pipelines — you know where the slowdowns hide
• Clear, confident communicator in written and verbal English
• Self-directed and reliable — you can deliver quality work with minimal hand-holding
• Able to commit 20–40 hours per week on a consistent basis

Nice to Have

• Prior experience with data annotation, data quality pipelines, or evaluation systems
• Familiarity with AI/ML workflows, model training infrastructure, or benchmarking pipelines
• Experience with distributed systems, developer tooling, or internal platform engineering
• Background contributing to or reviewing large, long-lived C++ codebases