C++ Developer - Internal Tooling & Optimization

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 production C++ codebases
• Profile and benchmark code to identify bottlenecks in data processing systems and implement scalable solutions
• Create flexible, extensible internal tools by embedding scripting languages within C++ applications
• Collaborate with data, research, and engineering teams to accelerate model training and evaluation
• Participate in synchronous design reviews to iterate on system architecture and implementation decisions

Who You Are

• A native or fluent English speaker with strong written and verbal communication skills
• A full-stack developer with a deep systems programming background
• With 3–5+ years of professional experience writing production-grade C++
• Experienced in embedding scripting languages within C++ applications for flexible tooling
• Skilled at profiling code and identifying performance bottlenecks in data-intensive systems
• Able to commit 20–40 hours per week consistently
• Self-directed and reliable when working in a remote, asynchronous environment

Nice to Have

• Prior experience with data annotation, data quality, or AI evaluation systems
• Familiarity with AI/ML workflows, model training pipelines, or benchmarking infrastructure
• Experience with distributed systems or developer tooling at scale
• Background in systems design for high-throughput or low-latency environments