Remote Senior C++ HPC Engineer - High-Impact AI Systems

Alignerr Corp.; Denver (CO); On-site; USD 124,000 - 193,000; Full time

Job summary

Alignerr is seeking a senior C++ engineer to design and optimize high-performance systems for AI data pipelines and evaluation tooling. You will work on production-grade C++ in a fully remote, flexible contract role and contribute to scalable, robust software used by leading labs.

The role requires 5+ years of production C++ experience, deep architectural understanding, and the ability to commit 20–40 hours weekly. Join a cutting-edge AI infrastructure effort with measurable impact.

Qualifications

• 5+ years of professional experience writing production C++ (modern C++17/20).
• Deep understanding of computer architecture, SIMD intrinsics, and cache coherency to optimize compute-heavy workloads.
• Able to commit 20–40 hours per week consistently.

Responsibilities

• Design, build, and optimize high-performance C++ systems for large-scale AI data pipelines and evaluation workflows.
• Develop full-stack tooling and backend services for data annotation, validation, and quality control at scale.
• Improve reliability, performance, and safety across existing production C++ codebases.
• Identify bottlenecks and edge cases in data and system behavior and implement scalable fixes.
• Collaborate with data, research, and engineering teams to support model training and evaluation workflows.
• Participate in synchronous design reviews to iterate on system architecture and implementation decisions.

Skills

C++

English fluency

Systems programming

Multithreading

Performance optimization

Job description

Alignerr is seeking a senior C++ engineer to design and optimize high-performance systems for AI data pipelines and evaluation tooling. You will work on production-grade C++ in a fully remote, flexible contract role and contribute to scalable, robust software used by leading labs.

The role requires 5+ years of production C++ experience, deep architectural understanding, and the ability to commit 20–40 hours weekly. Join a cutting-edge AI infrastructure effort with measurable impact.