Backend & Tooling Engineer (Rust)Alignerr • Denver, CO, United States

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Backend & Tooling Engineer (Rust)

Alignerr • Denver, CO, United States

[job_card.variable_days_ago]

[job_preview.job_type]

[job_card.full_time]

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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.

Proficiency building high-performance backend web services and robust, user-friendly command-line interface (CLI) tools.

Experience with type-safe database interactions and connection pooling for handling large-scale data.

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

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