{"schemaVersion":"jobsearcher.job.v1","id":"1c749d10d7cf59b70ff8ca27","url":"https://jobsearcher.com/jobs/1c749d10d7cf59b70ff8ca27","canonicalUrl":"https://jobsearcher.com/jobs/1c749d10d7cf59b70ff8ca27","title":"Backend Developer - AI Data Services","description":"Backend Developer - AI Data ServicesWhat if your C# expertise could directly shape the infrastructure powering the world's most advanced AI systems? We're looking for a seasoned C# engineer to design and build the data pipelines, annotation tooling, and evaluation systems that leading AI labs depend on to train and improve next-generation models.This is a fully remote contract role with meaningful, high-impact work on real production systems — not toy projects. If you thrive on complex engineering challenges and want your work to matter at scale, this is the opportunity.Organization: AlignerrType: Hourly ContractLocation: RemoteCommitment: 20–40 hours/weekWhat You'll DoDesign, build, and optimize high-performance C# systems that support AI data pipelines and model evaluation workflowsDevelop full-stack tooling and backend services for large-scale data annotation, validation, and quality controlImprove reliability, performance, and safety across existing C# codebasesCollaborate closely with data, research, and engineering teams to support model training and evaluation pipelinesIdentify bottlenecks and edge cases in data and system behavior — then implement scalable, production-ready fixesParticipate in synchronous design reviews to iterate on architecture and implementation decisionsWho You AreNative or fluent English speaker with clear written and verbal communication skillsFull-stack developer with a strong systems programming background5+ years of professional experience writing production-grade C#Strong skills in data modeling and database access — ORMs, micro-ORMs, and high-performance SQLExperienced building secure, well-documented endpoints for data access and manipulationAble to commit 20–40 hours per week consistentlyNice to HavePrior experience with data annotation, data quality systems, or evaluation pipelinesFamiliarity with AI/ML workflows, model training, or benchmarking infrastructureExperience with distributed systems or developer tooling at scaleWhy Join UsWork directly with leading AI research labs on systems that influence next-generation model developmentFully remote — work from wherever you do your best workFlexible contract engagement with a consistent, meaningful workloadCollaborate with a sharp, mission-driven team across data, research, and engineeringPotential for ongoing work and expanded scope as projects growApply now","company":"Alignerr","rawCompany":"alignerr","city":"Albemarle","state":"NC","isRemote":false,"isActive":false,"createdAt":"2026-06-17T03:27:03.789Z","occupations":[{"code":"15-1252.00","title":"Software Developers","slug":"software-developers"},{"code":"15-1251.00","title":"Computer Programmers","slug":"computer-programmers"},{"code":"15-1254.00","title":"Web Developers","slug":"web-developers"}],"industries":[{"code":"541511","title":"Custom Computer Programming Services","slug":"custom-computer-programming-services"},{"code":"541512","title":"Computer Systems Design Services","slug":"computer-systems-design-services"},{"code":"513210","title":"Software Publishers","slug":"software-publishers"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"Backend Developer - AI Data Services","description":"Backend Developer - AI Data ServicesWhat if your C# expertise could directly shape the infrastructure powering the world's most advanced AI systems? We're looking for a seasoned C# engineer to design and build the data pipelines, annotation tooling, and evaluation systems that leading AI labs depend on to train and improve next-generation models.This is a fully remote contract role with meaningful, high-impact work on real production systems — not toy projects. If you thrive on complex engineering challenges and want your work to matter at scale, this is the opportunity.Organization: AlignerrType: Hourly ContractLocation: RemoteCommitment: 20–40 hours/weekWhat You'll DoDesign, build, and optimize high-performance C# systems that support AI data pipelines and model evaluation workflowsDevelop full-stack tooling and backend services for large-scale data annotation, validation, and quality controlImprove reliability, performance, and safety across existing C# codebasesCollaborate closely with data, research, and engineering teams to support model training and evaluation pipelinesIdentify bottlenecks and edge cases in data and system behavior — then implement scalable, production-ready fixesParticipate in synchronous design reviews to iterate on architecture and implementation decisionsWho You AreNative or fluent English speaker with clear written and verbal communication skillsFull-stack developer with a strong systems programming background5+ years of professional experience writing production-grade C#Strong skills in data modeling and database access — ORMs, micro-ORMs, and high-performance SQLExperienced building secure, well-documented endpoints for data access and manipulationAble to commit 20–40 hours per week consistentlyNice to HavePrior experience with data annotation, data quality systems, or evaluation pipelinesFamiliarity with AI/ML workflows, model training, or benchmarking infrastructureExperience with distributed systems or developer tooling at scaleWhy Join UsWork directly with leading AI research labs on systems that influence next-generation model developmentFully remote — work from wherever you do your best workFlexible contract engagement with a consistent, meaningful workloadCollaborate with a sharp, mission-driven team across data, research, and engineeringPotential for ongoing work and expanded scope as projects growApply now","datePosted":"2026-06-17T03:27:03.789Z","dateModified":"2026-06-17T03:27:03.789Z","hiringOrganization":{"@type":"Organization","name":"Alignerr","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Albemarle","addressRegion":"NC","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"1c749d10d7cf59b70ff8ca27"},"url":"https://jobsearcher.com/jobs/1c749d10d7cf59b70ff8ca27"}}