15 days ago

Backend Developer AI Data Services

Alignerr

Hybrid
Contractor
$80,000
Hybrid
Apply

Job Overview

Job TitleBackend Developer AI Data Services
Job TypeContractor
Offered Salary$80,000
LocationHybrid
Map of Hybrid

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Job Description

Backend Developer — AI Data Services

About The Role

What if your C# expertise could directly shape the infrastructure powering next-generation 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 real production systems — not toy projects. You'll collaborate with data, research, and engineering teams at the frontier of AI development, solving hard infrastructure problems that have a direct impact on how the world's most advanced models are built.

Organization: AlignerrType: Hourly ContractLocation: RemoteCommitment: 20–40 hours/week

What You'll Do

  • Design, build, and optimize high-performance C# systems supporting AI data pipelines and model evaluation workflows
  • Develop full-stack tooling and backend services for large-scale data annotation, validation, and quality 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 scalable, production-ready fixes
  • Participate in synchronous design reviews to iterate on architecture and implementation decisions

Who You Are

  • Native or fluent English speaker with clear written and verbal communication skills
  • Full-stack developer with a strong systems programming foundation and 5+ years of professional C# experience
  • Skilled in data modeling and database access — including ORM frameworks and micro-ORMs for high-performance SQL interactions
  • Experienced building secure, well-documented APIs and endpoints for data access and manipulation
  • Able to commit reliably to 20–40 hours per week on an ongoing basis
  • Self-directed and comfortable working asynchronously across a remote-first environment

Nice to Have

  • Prior experience with data annotation platforms, data quality 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 substance of meaningful, technically challenging work
  • Contribute to infrastructure that shapes how next-generation AI models are built and evaluated
  • Potential for ongoing work and contract extension as projects grow and evolve

Key skills/competency

  • C#
  • Backend Development
  • AI Data Services
  • Data Pipelines
  • Model Evaluation
  • API Development
  • Database Management
  • Systems Programming
  • Remote Work
  • Contract Role

Tags:

Backend Developer
C#
AI
Data Services
Data Pipelines
Annotation Tooling
Model Evaluation
API Development
Systems Programming
Remote

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How to Get Hired at Alignerr

  • Tailor your resume: Highlight C# systems programming, AI data services, and API development experience.
  • Showcase remote work skills: Emphasize asynchronous communication and self-direction in your application.
  • Prepare for technical interviews: Be ready to discuss C# performance optimization and database interactions.
  • Understand the AI impact: Articulate your interest in shaping AI model development through infrastructure.
  • Network if possible: Connect with Alignerr employees on LinkedIn for insights into their culture.

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