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Backend Developer - AI Data Services
Backend Developer - AI Data ServicesAlignerr • Los Angeles, CA, United States
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Backend Developer - AI Data Services

Backend Developer - AI Data Services

Alignerr • Los Angeles, CA, United States
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  • [job_card.full_time]
[job_card.job_description]

Join to apply for the Backend Developer - AI Data Services role at Alignerr .

Base pay range

$50.00 / hr - $75.00 / hr

About The Job

Alignerr connects top technical experts with leading AI labs to build, evaluate, and improve next-generation models. We work on real production systems and high-impact research workflows across data, tooling, and infrastructure.

Position

Senior C# Full-Stack Engineer AI Data & Infrastructure

Type : Contract, Remote

Commitment : 2040 hours / week

Compensation : Competitive, hourly (based on experience)

Role Responsibilities

  • Design, build, and optimize high-performance systems in C# supporting AI data pipelines and evaluation workflows
  • Develop full-stack tooling and backend services for large-scale data annotation, validation, and quality control
  • Improve reliability, performance, and safety across existing C# codebases
  • Collaborate with data, research, and engineering teams to support model training and evaluation workflows
  • Identify bottlenecks and edge cases in data and system behavior, and implement scalable fixes
  • Participate in synchronous reviews to iterate on system design and implementation decisions

Qualifications

Must-Have

  • Native or fluent English speaker
  • Full-stack developer experience with a strong systems programming background
  • 5+ years of professional experience writing production C#.
  • Strong skills in data modeling and database access using ORM frameworks or micro-ORMs for high-performance SQL interactions.
  • Experience building secure, documented endpoints for data access and manipulation.
  • Clear written and verbal communication skills.
  • Ability to commit 2040 hours per week.

    • Preferred

  • Prior experience with data annotation, data quality, or evaluation systems
  • Familiarity with AI / ML workflows, model training, or benchmarking pipelines
  • Experience with distributed systems or developer tooling

    • Application Process

  • Submit your resume
  • Complete a short technical screening
  • Project matching and onboarding

    • Seniority level

    Mid-Senior level

    Employment type

    Contract

    Job function

    Engineering and Information Technology

    Industries

    Technology, Information and Internet

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