Senior C# Infra Eng - AI Data Pipelines (Remote)

Alignerr Corp.; United States; Remote; GBP 83,000 - 165,000; Part time

Job summary

Alignerr Corp. is seeking a Senior C# Engineer to design and build high-performance data pipelines and evaluation infrastructure powering AI training. The role focuses on scalable C# systems, annotation tooling, and reliable backend services in a fully remote setting.

You will collaborate with data, research, and engineering teams to optimize pipelines and support model training for cutting-edge AI workloads. 20–40 hours per week, hourly contract, with potential for ongoing opportunities.

Qualifications

• 5+ years of professional experience writing production-grade C#.
• Deep experience building streaming data pipelines using asynchronous streams and reactive patterns.
• Strong systems programming background as a full-stack developer.
• Excellent English communication and collaboration skills.
• Ability to commit 20–40 hours per week with consistency.

Responsibilities

• Design, build, and optimize high-performance C# systems powering AI data pipelines and evaluation workflows.
• Develop full-stack tooling and backend services for large-scale data annotation 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 design reviews to iterate on architecture and implementation decisions.

Skills

C# development

Async streams

Data pipelines

Distributed systems

Full-stack dev

Job description

Alignerr Corp. is seeking a Senior C# Engineer to design and build high-performance data pipelines and evaluation infrastructure powering AI training. The role focuses on scalable C# systems, annotation tooling, and reliable backend services in a fully remote setting.

You will collaborate with data, research, and engineering teams to optimize pipelines and support model training for cutting-edge AI workloads. 20–40 hours per week, hourly contract, with potential for ongoing opportunities.