Senior Rust Engineer
AlignerrAbout the role
Senior Rust Engineer — AI Data & Infrastructure (AI Training)
About The Role
What if your Rust expertise could directly shape the infrastructure powering the world's most advanced AI models? We're looking for a Senior Rust Full-Stack Engineer to build and optimize the data pipelines, annotation tooling, and evaluation systems that leading AI labs depend on every day.
This is a fully remote, flexible contract role for an experienced engineer who lives and breathes Rust and wants to work on genuinely high-impact, production-grade systems — not toy problems.
Organization: Alignerr
Type: Hourly Contract
Location: Remote
Commitment: 20–40 hours/week
What You'll Do
Design, build, and optimize high-performance distributed 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
Hunt down and resolve complex concurrency issues — deadlocks, race conditions, and subtle async bugs
Improve reliability, performance, and safety across existing Rust codebases
Collaborate closely with data, research, and engineering teams to support model training and evaluation workflows
Identify bottlenecks and edge cases in system behavior and implement scalable, production-ready fixes
Participate in synchronous design reviews and iterate on architecture decisions with sharp peers
Who You Are
3–5+ years of professional experience writing production Rust — this is a must, not a nice-to-have
Strong background building distributed services using RPC frameworks, distributed state, or consensus protocols
Proven ability to debug complex concurrency issues using async instrumentation and tracing tools
Native or fluent English speaker with clear written and verbal communication skills
Self-directed and reliable — you can commit to 20–40 hours per week and deliver without hand-holding
You care about code quality, correctness, and safety as much as you care about shipping
Nice to Have
Prior experience with data annotation systems, data quality pipelines, or AI evaluation infrastructure
Familiarity with AI/ML workflows, model training, or benchmarking pipelines
Experience with developer tooling, systems programming, or high-throughput data infrastructure
Why Join Us
Work on real production systems powering cutting-edge AI research alongside leading AI labs
Fully remote and async-friendly — work from wherever you do your best thinking
Meaningful, technically interesting work — no CRUD apps, no filler projects
Freelance autonomy with the structure of a focused, collaborative engineering team
Potential for ongoing engagement and expanded scope as new projects launch
Responsibilities
- Design, build, and optimize high-performance distributed 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
- Hunt down and resolve complex concurrency issues — deadlocks, race conditions, and subtle async bugs
- Improve reliability, performance, and safety across existing Rust codebases
- Collaborate closely with data, research, and engineering teams to support model training and evaluation workflows
- Identify bottlenecks and edge cases in system behavior and implement scalable, production-ready fixes
- Participate in synchronous design reviews and iterate on architecture decisions with sharp peers
Qualifications
- 3–5+ years of professional experience writing production Rust
- Strong background building distributed services using RPC frameworks, distributed state, or consensus protocols
- Proven ability to debug complex concurrency issues using async instrumentation and tracing tools
- Native or fluent English speaker with clear written and verbal communication skills
- Self-directed and reliable — you can commit to 20–40 hours per week and deliver without hand-holding
- You care about code quality, correctness, and safety as much as you care about shipping
Benefits
- Work on real production systems powering cutting-edge AI research alongside leading AI labs
- Fully remote and async-friendly — work from wherever you do your best thinking
- Meaningful, technically interesting work — no CRUD apps, no filler projects
- Freelance autonomy with the structure of a focused, collaborative engineering team
- Potential for ongoing engagement and expanded scope as new projects launch
Skills mentioned
About Alignerr
We're looking for experts to help train better AI. At Alignerr, we offer paid, flexible projects for writers, coders, and subject matter experts to refine and align advanced artificial intelligence. Work when you want, where you want. Apply today at Alignerr.com or through our open Job Postings.