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Overview
Lead / Manager

Lead Systems Engineer (Rust) - AI Platform

Confirmed live in the last 24 hours

Labelbox

Labelbox

New York City
Remote
Posted December 16, 2025

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
- 5+ years of professional experience writing production Rust, with a focus on system architecture and API design.
- Deep expertise in FFI (Foreign Function Interface) and unsafe Rust boundaries to optimize interactions between Rust and other languages.
- Advanced knowledge of asynchronous runtimes and ensuring thread safety in complex, multi-threaded environments.
- Clear written and verbal communication skills for leading system design reviews.
- 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
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