Rust Software Engineer

About the role

Are you ready to utilize your Rust skills to influence the infrastructure behind advanced AI models? Alignerr is in search of a Senior Rust Software Engineer to develop and enhance the data pipelines, annotation tools, and evaluation systems relied upon by top AI laboratories daily.

Key facts

What you'll do

• Create and refine high-performance distributed systems in Rust that facilitate AI data pipelines and evaluation processes.
• Build full-stack tools and backend services for extensive data annotation, validation, and quality assurance.
• Diagnose and resolve intricate concurrency challenges, including deadlocks, race conditions, and subtle asynchronous bugs.
• Enhance the reliability, performance, and safety of existing Rust codebases.
• Collaborate with data, research, and engineering teams to support workflows for model training and evaluation.
• Detect bottlenecks and edge cases in system performance and implement scalable, production-ready solutions.
• Engage in synchronous design reviews and collaborate with peers to iterate on architectural decisions.

Requirements

• 3-5+ years of hands-on experience in production Rust development is essential.
• Solid experience in creating distributed services using RPC frameworks, distributed state, or consensus protocols.
• Demonstrated ability to troubleshoot complex concurrency issues utilizing asynchronous instrumentation and tracing tools.
• Proficient in English, both written and spoken, with strong communication skills.
• Self-motivated and dependable, capable of committing to 20-40 hours per week and delivering results independently.
• A strong commitment to code quality, correctness, and safety alongside a focus on timely delivery.

Nice to have

• Experience with data annotation systems, data quality pipelines, or AI evaluation infrastructure.
• Familiarity with AI/ML workflows, model training, or benchmarking processes.
• Background in developer tooling, systems programming, or high-throughput data infrastructure.

Why Join Us

• Contribute to real-world production systems that support significant AI research in collaboration with leading AI labs.
• Enjoy a fully remote and asynchronous work environment that allows you to work from wherever you are most productive.
• Engage in meaningful and technically challenging projects - no trivial applications or filler tasks.
• Experience the freedom of freelance work within a structured, collaborative engineering team.
• Opportunity for ongoing collaboration and expanded responsibilities as new projects emerge.