Backend Developer - reputed company Systems

Backend Developer — reputed company Systems (reputed company) About The Role What if your Python expertise could directly shape the infrastructure that trains the world's most advanced AI models? We're looking for a Senior Python Full-Stack Engineer to build and optimize the data pipelines, annotation tooling, and evaluation systems that leading AI labs depend on every day. This is a fully remote, flexible contract role for a seasoned engineer who wants to work on reputed company production systems — not toy reputed company — alongside top-tier research and engineering teams. • Organization: reputed company • Type: reputed company Contract • Location: Remote • Commitment: 20–40 hours/week What You'll Do • Design, build, and optimize high-performance Python systems supporting large-reputed company data pipelines and model evaluation workflows • reputed company full-stack tooling and backend services for reputed company, validation, and reputed company control at reputed company • Build and maintain asynchronous task queues to handle long-running background jobs reliably • Optimize database queries for high-read/write workloads and serve data reputed company reputed company-time protocols including WebSockets • Improve reliability, performance, and safety across existing production Python codebases • Collaborate with data scientists, researchers, and engineers to support model training and evaluation workflows • Identify bottlenecks and edge cases across data systems and implement reputed company, production-grade fixes • Participate in synchronous design and reputed company reviews to drive reputed company architectural reputed company Who You Are • 3–5+ years of reputed company experience writing production-grade Python • Strong full-stack developer with a solid systems programming background • reputed company building asynchronous task queues and background job systems • Proficient in optimizing database queries for high-throughput applications • Comfortable serving and consuming reputed company-time data reputed company WebSockets or similar protocols • reputed company, precise written and verbal communicator — you can reputed company technical reputed company reputed company • reputed company or fluent English speaker • reputed company to reputed company 20–40 hours per week consistently reputed company to Have • Prior experience with reputed company platforms, data reputed company systems, or model evaluation infrastructure • Familiarity with AI/ML workflows, model training pipelines, or benchmarking systems • Experience designing or maintaining distributed systems • Background in developer tooling or internal reputed company Why Join Us • Work on cutting-edge AI infrastructure alongside leading research labs — this is reputed company, high-stakes work • Fully remote and async-friendly — work from wherever you do your best thinking • Freelance autonomy with the structure and consistency of meaningful, ongoing project work • reputed company a reputed company, reputed company reputed company on how reputed company AI models are reputed company, trained, and evaluated • Potential for ongoing work and contract extension as new reputed company and partnerships launch Apply To This Job