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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) for AI
About the Role
What if your expertise in high-performance C++ could directly shape the infrastructure powering next-generation AI? We're looking for a Senior C++ Engineer to build and optimize the systems that leading AI labs depend on — from data pipelines and annotation tooling to evaluation infrastructure that influences how frontier models are trained and benchmarked.
This is a fully remote, flexible contract role for a seasoned systems engineer who wants meaningful, high-impact work at the cutting edge of AI development.
- 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 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, throughput, and safety across existing production C++ codebases
- Identify performance bottlenecks, edge cases, and systemic issues — then implement scalable, elegant fixes
- Collaborate with data, research, and engineering teams to accelerate model training and evaluation cycles
- Participate in synchronous design reviews to iterate on system architecture and implementation decisions
Who You Are
- Native or fluent English speaker with strong written and verbal communication skills
- Full-stack developer with a deep systems programming background
- 5+ years of professional experience writing production-grade C++ (C++17 or C++20 preferred)
- Deep understanding of computer architecture, SIMD intrinsics, and cache coherency for compute-heavy workloads
- Expertise in lock-free programming and maximizing parallelism using threading libraries
- Able 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 infrastructure
- Experience building distributed systems or developer tooling
Why Join Us
- Work directly on production systems used by leading AI research labs — your code ships and it matters
- Fully remote and async-friendly — work from wherever you do your best thinking
- Flexible hours with meaningful, technically challenging work
- Collaborate with world-class engineers and researchers on high-impact AI projects
- Potential for ongoing engagement and expanded scope as projects scale
Apply now
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