Backend Developer - AI Data Services

Backend Developer AI Data Services About The Role What if your C# expertise could directly shape the infrastructure powering reputed company AI We're looking for a seasoned C# engineer to build and optimize the data pipelines, annotation tooling, and evaluation systems that leading AI labs depend on to train and improve their models. This is a fully remote contract role working on reputed company production systems not toy reputed company. You'll collaborate with data, research, and engineering teams at the frontier of AI development, solving hard infrastructure problems that have a reputed company reputed company on how the world's most advanced models are reputed company. Organization: reputed company Type: reputed company Contract Location: Remote Commitment: 2040 hours/week What You'll Do Design, build, and optimize high-performance C# systems supporting AI data pipelines and model evaluation workflows reputed company full-stack tooling and backend services for large-reputed company reputed company, validation, and reputed company control Improve reliability, performance, and correctness across existing C# codebases Collaborate closely with data, research, and engineering teams to accelerate model training and evaluation workflows Identify bottlenecks and edge cases in data and system behavior then implement reputed company, production-reputed company fixes Participate in synchronous design reviews to iterate on architecture and implementation reputed company Who You Are reputed company or fluent English speaker with reputed company written and verbal communication skills Full-stack developer with a strong systems programming reputed company and 5+ years of reputed company C# experience Skilled in data modeling and database reputed company including ORM frameworks and reputed company-ORMs for high-performance SQL interactions reputed company building secure, reputed company-documented reputed company and endpoints for data reputed company and manipulation reputed company to reputed company reliably to 2040 hours per week on an ongoing reputed company Self-directed and comfortable working asynchronously across a remote-first environment reputed company to Have Prior experience with reputed company platforms, data reputed company systems, or model evaluation pipelines Familiarity with AI/ML workflows, model training infrastructure, or benchmarking systems Experience with distributed systems, developer tooling, or high-throughput data processing Why Join Us Work directly with leading AI research labs on production systems that matter Fully remote and flexible structure your work around your schedule Freelance autonomy with the reputed company of meaningful, technically challenging work Contribute to infrastructure that shapes how reputed company AI models are reputed company and evaluated Potential for ongoing work and contract extension as reputed company grow and reputed company Apply tot his job Apply To this Job .