Backend & Tooling Engineer (Rust)

Summary: The role of Senior Rust Full-Stack Engineer at Alignerr involves designing and optimizing high-performance systems in Rust for AI data pipelines and evaluation workflows. The position requires collaboration with various teams to enhance model training and evaluation processes while ensuring the reliability and performance of existing codebases. This is a contract position with a commitment of 20–40 hours per week, offering competitive hourly compensation based on experience.

Key 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

Key Skills:

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

Salary (Rate): £50.00/hr

City: undetermined

Country: United Kingdom

Working Arrangements: remote

IR35 Status: undetermined

Seniority Level: undetermined

Industry: IT