About The Role
What if your systems programming expertise could directly shape the infrastructure behind some of the world's most advanced AI models? We're looking for a Senior Rust Engineer to build and optimize the high-performance data pipelines, annotation tooling, and evaluation systems that leading AI labs depend on to train and improve next-generation models.
This is a fully remote contract role with serious technical depth. You'll be working on real production systems — not toy projects — alongside research and engineering teams at the frontier of AI development.
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 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 — then implement scalable, production-ready fixes
Participate in synchronous design reviews to iterate on architecture and implementation decisions
Who You Are
5+ years of professional experience writing production-grade Rust
Strong systems programming foundation — you think carefully about performance, concurrency, and memory safety
Proven experience building backend services, developer tooling, or data pipelines
Clear, direct communicator — written and verbal — comfortable working across technical and research teams
Able to commit 20–40 hours per week with consistency and reliability
Nice to Have
Prior experience with data annotation systems, data quality pipelines, or model evaluation infrastructure
Familiarity with AI/ML workflows, model training, or benchmarking pipelines
Experience with distributed systems design or developer tooling at scale
Exposure to Go, Python, or C++ in a systems context
Why Join Us
Work directly with leading AI labs on real, production-grade infrastructure that matters
Fully remote — work from anywhere, on a schedule that fits your life
Freelance autonomy with the structure and focus of high-impact, technically challenging work
Contribute to systems that shape how the world's most advanced AI models are built and evaluated
Potential for ongoing engagement and expanded scope as projects grow