About the Role
What if your deep knowledge of Rust could directly shape the infrastructure powering the world's most advanced AI models? We're looking for a Senior Rust Engineer to build and optimize the high-performance distributed systems, data pipelines, and evaluation tooling that leading AI labs depend on every day.
This is a fully remote contract role with flexible hours. If you thrive on hard systems problems — concurrency, distributed state, performance at 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 production-grade Rust systems supporting large-scale AI data pipelines and model evaluation workflows
- Develop full-stack backend services and tooling for data annotation, validation, and quality control
- Improve reliability, performance, and safety across existing Rust codebases
- Debug complex concurrency issues — deadlocks, race conditions, and async edge cases — using instrumentation and tracing tools
- Collaborate with data, research, and engineering teams to support model training and evaluation infrastructure
- Identify bottlenecks and implement scalable, robust fixes
- Participate in synchronous design reviews to iterate on system architecture and implementation decisions
Who You Are
- 3–5+ years of professional experience writing production Rust
- Strong background in distributed systems — RPC frameworks, distributed state, consensus mechanisms
- Experienced at debugging complex concurrency issues using async instrumentation and tracing tools
- Native or fluent English speaker with clear written and verbal communication skills
- Able to commit 20–40 hours per week with reliable availability
- Self-directed and comfortable working asynchronously in a remote environment
Nice to Have
- Prior experience with data annotation, data quality, or evaluation systems
- Familiarity with AI/ML workflows, model training pipelines, or benchmarking infrastructure
- Background in developer tooling or systems-level software
- Experience contributing to or maintaining open-source Rust projects
Why Join Us
- Work directly with leading AI research labs on real production systems — not toy projects
- Fully remote and flexible — structure your week around the work, not the other way around
- Freelance autonomy with the depth and impact of meaningful engineering work
- Tackle some of the hardest distributed systems challenges in the AI space
- Potential for ongoing work and contract extension as projects scale and evolve