C++ Backend Engineer - AI Data Platforms

* Design, build, and optimize high-performance C++ systems that power AI data pipelines and evaluation workflows * Develop backend services and tooling for large-scale data annotation, validation, and quality control * Improve reliability, performance, and correctness across existing C++ codebases * Identify bottlenecks and edge cases in data and system behavior, and implement scalable solutions * Collaborate closely with data, research, and engineering teams to support model training and evaluation * Participate in synchronous design reviews to iterate on system architecture and implementation decisions

Who You Are

* 5+ years of professional experience writing production-grade C++ * Strong background in asynchronous network programming — event loops, RPC frameworks, or high-performance microservices * Experience working with high-throughput databases or message queues * Native or fluent English speaker with clear written and verbal communication skills * Able to commit 20–40 hours per week with consistency and reliability * Self-directed and comfortable operating in fast-moving engineering environments

Nice to Have

* Prior experience with data annotation, data quality pipelines, or evaluation systems * Familiarity with AI/ML workflows, model training, or benchmarking infrastructure * Experience with distributed systems architecture or developer tooling * Background working alongside research teams or in AI-adjacent environments

Why Join Us

* Work directly with leading AI labs on production systems that matter * Fully remote — work from wherever you do your best work * Flexible hours with meaningful, high-impact engineering challenges * Contribute to the infrastructure that shapes how next-generation AI is built and evaluated * Potential for ongoing work and contract extension as projects evolve