Rust Software Engineer - Distributed Systems

Labelbox; Remote; GBP 80,000 - 100,000; Part time

Job summary

A leading AI infrastructure company is looking for a Senior Rust Full-Stack Engineer to design and optimize high-performance systems supporting AI data pipelines. The role focuses on developing backend services for data annotation and improving existing Rust codebases. Ideal candidates should have 3-5+ years of experience in Rust, with a strong background in distributed services and debugging complex systems. This is a remote contract position requiring a commitment of 20-40 hours per week, with competitive hourly compensation.

Qualifications

• 3-5+ years of professional experience writing production Rust.
• Strong background in building distributed services using RPC frameworks.
• Experience debugging complex concurrency issues using instrumentation tools.

Responsibilities

• Design, build, and optimize high-performance systems in Rust.
• Develop full-stack tooling and backend services for data annotation.
• Improve reliability, performance, and safety across existing Rust codebases.

Skills

Fluent English

Production Rust experience

Distributed services knowledge

Debugging concurrency issues

Clear communication

Job description

About the Job

Alignerr connects top technical experts with leading AI labs to build, evaluate, and improve next-generation models. We work on real production systems and high-impact research workflows across data, tooling, and infrastructure.

Position

Senior Rust Full-Stack Engineer — AI Data & Infrastructure

Type: Contract, Remote Commitment: 20–40 hours/week Compensation: Competitive, hourly (based on experience)

Role Responsibilities

• 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 reviews to iterate on system design and implementation decisions

Qualifications

Must-Have

• Native or fluent English speaker
• 3-5+ years of professional experience writing production Rust.
• Strong background in building distributed services using RPC frameworks and handling distributed state or consensus.
• Experience debugging complex concurrency issues (deadlocks, race conditions) using asynchronous instrumentation and tracing tools.
• Clear written and verbal communication skills.
• Ability to commit 20–40 hours per week.

Preferred

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

Application Process

• Submit your resume
• Complete a short technical screening
• Project matching and onboarding

$50 - $75 an hour