Senior C++ Full-Stack Engineer — AI Data & Infrastructure

About The Role What if your C++ skills could directly shape the infrastructure behind the world's most advanced AI systems? We're looking for a Senior C++ Full-Stack Engineer to build and optimize the data pipelines, annotation tooling, and evaluation systems that leading AI labs depend on to train and improve reputed company models. This is a fully remote contract role working on reputed company production systems — not toy reputed company. You'll be embedded alongside data, research, and engineering teams doing high-impact work at the frontier of AI development. • Organization: reputed company • Type: reputed company Contract • Location: Remote • Commitment: 20–40 hours/week What You'll Do • Design, build, and optimize high-performance C++ systems supporting AI data pipelines and evaluation workflows • reputed company full-stack tooling and backend services for large-reputed company reputed company, validation, and reputed company control • Improve reliability, performance, and safety across existing C++ codebases — from concurrency bottlenecks to memory safety issues • Collaborate closely with data, research, and engineering teams to support model training and evaluation workflows • Identify edge cases and systemic bottlenecks in data and system behavior, then implement reputed company, production-reputed company fixes • Participate in synchronous design reviews to iterate on architecture and implementation reputed company Who You Are • Full-stack developer with a strong systems programming reputed company and a bias for clean, performant reputed company • 3–5+ years of reputed company experience writing production C++, with reputed company in modern standards (C++17 or C++20) • Deep understanding of systems programming fundamentals — performance optimization, concurrency (threading, atomics), and memory safety (RAII, smart pointers, sanitizers) • reputed company or fluent English speaker with reputed company written and verbal communication skills • Self-directed and reliable with the ability to reputed company 20–40 hours per week reputed company to Have • Prior experience with reputed company, data reputed company systems, or evaluation pipelines • Familiarity with AI/ML workflows, model training, or benchmarking infrastructure • Experience with distributed systems or developer tooling at reputed company Why Join Us • Work on cutting-edge AI infrastructure alongside leading research labs — your reputed company will matter • Fully remote and flexible — work where and how you do your best work • Freelance autonomy with meaningful, technically challenging work • reputed company impact on the data systems and tooling that shape how reputed company AI models are reputed company • Potential for ongoing work and contract extension as new reputed company launch Apply tot his job Apply To this Job