Data Infrastructure Engineer (Rust) - High Performance Computing

Senior Rust Full-Stack Engineer - AI Data & Infrastructure

About the Role

What if your deep expertise in Rust could directly shape the infrastructure powering the next generation of AI? We're looking for a Senior Rust Engineer to build and optimize high-performance data pipelines, annotation tooling, and evaluation systems used by leading AI research labs - on real production systems that matter.

This is a fully remote, flexible contract role for an experienced Rust engineer who thrives at the intersection of performance engineering and AI infrastructure.

• 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 full-stack tooling and backend services for large-scale
  data annotation
  , validation, and quality control
• Improve reliability, performance, and 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 fixes
• Participate in synchronous design reviews to iterate on system 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
• Deep expertise in
  data parallelism and concurrency patterns
  to maximize CPU saturation
• Strong command of
  memory layout, SIMD optimizations, and heap allocation minimization
  to identify and resolve performance bottlenecks
• Self-directed and dependable - able to commit 20-40 hours per week and deliver without hand-holding

Nice to Have

• Prior experience with
  data annotation
  , data quality pipelines, or evaluation systems
• Familiarity with AI/ML workflows, model training, or benchmarking pipelines
• Experience building
  distributed systems
  or developer tooling at scale

Why Join Us

• Work on cutting-edge AI infrastructure alongside leading research labs
• Fully remote and flexible - work when and where it suits you
• Freelance autonomy with the structure of high-impact, technically challenging work
• Make a direct, tangible contribution to systems that shape how next-generation AI models are built and evaluated
• Potential for ongoing work and contract extension as new projects launch