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C++ Engineer - High Performance Computing (HPC)
Remote (Global)
$50 – $75/hr
June 26, 2026
Job description
C++ Engineer — High Performance Computing (HPC)
About the Role
What if your deep systems programming expertise could directly shape the infrastructure powering the next generation of AI? We're looking for senior C++ engineers to build, optimize, and scale the high-performance systems that leading AI labs depend on — from data pipelines and annotation tooling to evaluation infrastructure and backend services.
This is a fully remote, flexible contract role working at the frontier of AI development. If you live and breathe modern C++ and thrive on performance-critical engineering challenges, this is where your skills make the biggest impact.
- Organization: Alignerr
- Type: Hourly Contract
- Location: Remote
- Commitment: 20–40 hours/week
What You'll Do
- Design, build, and optimize high-performance C++ systems supporting AI data pipelines and evaluation workflows
- Develop backend services and full-stack tooling for large-scale data annotation, validation, and quality control
- Improve reliability, performance, and safety across existing C++ codebases
- Identify and resolve bottlenecks and edge cases in data and system behavior with scalable, production-ready solutions
- Collaborate with data, research, and engineering teams to support model training and evaluation workflows
- Participate in synchronous design reviews and contribute to system architecture decisions
Who You Are
- 5+ years of professional experience writing production-grade C++ — you're fluent in modern standards (C++17 or C++20 preferred)
- Deep understanding of computer architecture, SIMD intrinsics, and cache coherency — you know how to squeeze performance out of compute-heavy workloads
- Expert in lock-free programming and maximizing parallelism using threading libraries
- Strong full-stack developer with a solid systems programming background
- Native or fluent English speaker with clear written and verbal communication skills
- Available to commit 20–40 hours per week consistently
Nice to Have
- Prior experience with data annotation, data quality pipelines, or evaluation systems
- Familiarity with AI/ML workflows, model training, or benchmarking pipelines
- Experience with distributed systems or developer tooling
- Background in high-performance computing, game engines, or financial systems
Why Join Us
- Work on cutting-edge AI projects alongside leading research labs at the frontier of the field
- Fully remote and flexible — work from wherever you do your best thinking
- Freelance autonomy with the structure of meaningful, high-impact engineering work
- Tackle genuinely hard performance and systems challenges that push the limits of modern C++
- Potential for ongoing work and contract extension as new projects launch
Apply now
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