Senior Backend Engineer for AI Systems — Remote, Flexible

YO AI Labs is seeking a Senior Software Engineer for a remote contractor role (~15 hrs/week). You will work on challenging coding tasks to improve next-generation AI systems, build features, debug and optimize, and create deterministic verifiers to evaluate solutions.

The ideal candidate has strong backend experience, proven ability to build scalable APIs, and solid debugging and performance optimization skills; cybersecurity/SecOps is a plus.