About this role · Coding
About the Role What if your Rust expertise could directly shape the infrastructure powering the next generation of AI? We're looking for a senior Rust engineer to build and optimize the high-performance systems, data pipelines, and developer tooling that leading AI labs depend on to train and evaluate cutting-edge models. This is a fully remote contract role for someone who takes genuine pride in writing safe, fast, production-grade Rust — and wants to work on systems where performance and reliability genuinely matter. - 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 that power AI data pipelines and evaluation workflows - Develop full-stack backend services and CLI tooling for large-scale data annotation, validation, and quality control - Improve reliability, performance, and safety across existing production Rust codebases - Collaborate closely with data, research, and engineering teams to support model training and evaluation at scale - Identify performance bottlenecks and edge cases in data and system behavior, then implement scalable, robust fixes - Participate in synchronous design reviews to iterate on architecture and implementation decisions Who You Are - Native or fluent English speaker with clear written and verbal communication skills - 5+ years of professional experience writing production-grade Rust - Proven ability to build high-performance backend web services and robust, user-friendly CLI tools - Experienced with type-safe database interactions and connection pooling for handling large-scale data workloads - Detail-oriented and systematic — you think carefully about correctness, edge cases, and system behavior - Able to commit 20–40 hours per week with consistency and reliability Nice to Have - Prior experience with data annotation, data quality, or evaluation systems - Familiarity with AI/ML workflows, model training pipelines, or benchmarking infrastructure - Experience with distributed systems design or developer tooling ecosystems Why Join Us - Work on real production systems used by leading AI research labs - Fully remote and async-friendly — work when and where you do your best work - Freelance autonomy with the structure of meaningful, high-impact technical work - Contribute directly to infrastructure that shapes how next-generation AI models are built and evaluated - Potential for ongoing work and contract extension as new projects launch
