Job Description
C++ Backend Engineer — AI Data Platforms
About The Role
What if your systems programming expertise could directly shape the infrastructure powering next-generation AI? We're looking for senior C++ engineers to build, optimize, and scale the data pipelines, annotation tooling, and evaluation systems that leading AI labs depend on.
- This is a fully remote contract role with meaningful technical depth — real production systems, real impact, and the kind of engineering challenges that actually push your skills forward.
- 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 backend services and tooling for data annotation, validation, and quality control at scale
- Improve reliability, performance, and safety across existing C++ codebases
- Identify bottlenecks and edge cases in system and data behavior — then implement clean, scalable fixes
- Collaborate with data, research, and engineering teams to support model training and evaluation workflows
- Participate in synchronous design reviews to iterate on architecture and implementation decisions
- Who You Are
- Native or fluent English speaker with clear written and verbal communication
- 5+ years of professional experience writing production-grade C++
- Strong background in asynchronous network programming — event loops, RPC frameworks, or high-performance microservices
- Experienced working with high-throughput databases or message queues
- Full-stack developer mindset with a deep systems programming foundation
- 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 with distributed systems design or developer tooling
- Why Join Us
- Work directly with leading AI research labs on systems that matter
- Fully remote — work from wherever you do your best thinking
- Flexible contract engagement with meaningful, high-impact technical work
- Collaborate with top-tier engineers across data, research, and infrastructure
- Potential for ongoing work and contract extension as projects scale
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