Senior Systems Engineer — AI Data & Infrastructure

Alignerr connects top technical experts with leading AI labs to build, evaluate, and improve next-generation models. The Senior Systems Engineer will design, build, and optimize high-performance systems while collaborating with various teams on model-facing infrastructure and maintaining reliable data pipelines.

Responsibilities:

• Design, build, and optimize high-performance systems using Go, Rust, Python, or C++
• Develop tooling and backend services for large-scale data annotation , validation, and evaluation workflows
• Build and maintain reliable data pipelines supporting AI training and benchmarking
• Improve performance, scalability, and safety across existing codebases
• Collaborate with data, research, and engineering teams on model-facing infrastructure
• Identify bottlenecks, edge cases, and failure modes in data and system behavior
• Participate in synchronous reviews to iterate on architecture and implementation decisions

Requirements:

• 5+ years of professional experience in Go, Rust, Python, or C++
• Strong systems or backend engineering background
• Experience building production services, tooling, or data pipelines
• Ability to reason about performance, reliability, and correctness
• Clear written and verbal communication skills
• Ability to commit 20–40 hours per week
• Experience with data annotation, data quality, or evaluation systems
• Familiarity with AI/ML workflows, model training, or benchmarking pipelines
• Experience with distributed systems or high-throughput data processing
• Background in developer tooling or internal infrastructure