About this role · Coding
About the Role What if your systems programming expertise could directly shape the infrastructure powering next-generation AI? We're looking for a Senior Rust Engineer to build and optimize the high-performance data pipelines, annotation tooling, and evaluation systems that sit at the heart of cutting-edge AI development. This is a fully remote contract role working alongside leading AI labs on real production systems — not toy projects. If you care deeply about performance, correctness, and building things that scale, this is the work you've been waiting for. - Organization: Alignerr - Type: Hourly Contract - Location: Remote - Commitment: 20–40 hours/week What You'll Do - Design, build, and optimize high-performance systems in Rust supporting AI data pipelines and evaluation workflows - Develop backend services and tooling for large-scale data annotation, validation, and quality control - Improve reliability, performance, and memory safety across existing Rust codebases - Collaborate with data, research, and engineering teams to support model training and evaluation workflows - Identify bottlenecks and edge cases in data and system behavior, and implement scalable, production-ready fixes - Participate in synchronous design reviews to iterate on system architecture and implementation decisions Who You Are - 5+ years of professional experience writing production-grade Rust - Strong systems programming background — you think deeply about performance, concurrency, and memory safety - Proven experience building backend services, developer tooling, or data pipelines - Clear and effective communicator in both written and verbal contexts - Able to commit 20–40 hours per week with reliability and consistency Nice to Have - Prior experience with data annotation, data quality systems, or evaluation pipelines - Familiarity with AI/ML workflows, model training, or benchmarking infrastructure - Experience with distributed systems or large-scale developer tooling - Background working with or alongside AI research teams Why Join Us - Work on cutting-edge AI infrastructure alongside leading research labs - Fully remote and flexible — work from wherever you do your best work - Freelance autonomy with the structure of meaningful, high-impact engineering work - Make a direct, tangible contribution to AI systems that operate at real scale - Potential for ongoing work and contract extension as new projects launch