Remote Senior C# AI Data Pipelines Engineer

Alignerr Corp.; Denver (CO); Remote; USD 96,000 - 179,000; Full time

Job summary

Alignerr is seeking a Senior C# Infrastructure Engineer to design and optimize AI data pipelines and evaluation systems. This fully remote, hourly-contract role offers 20–40 hours per week and meaningful, high-impact work across production systems with data, research, and engineering teams.

You will build streaming data pipelines, develop full-stack tooling for data annotation and validation, and drive reliability and performance improvements in C#.

Qualifications

• 5+ years of professional C# experience.
• Experience building production-grade data pipelines.
• Strong written and spoken English.

Responsibilities

• Design and optimize C# systems for AI data pipelines.
• Develop tooling and backend services for data annotation and evaluation.
• Improve reliability and performance of existing C# codebases.
• Collaborate with data, research, and engineering teams.
• Identify bottlenecks and implement scalable fixes.
• Participate in design reviews and architecture decisions.

Skills

C# development

Full-stack development

Streaming data pipelines

Reactive programming

Asynchronous I/O

Distributed systems

System optimization

Job description

Alignerr is seeking a Senior C# Infrastructure Engineer to design and optimize AI data pipelines and evaluation systems. This fully remote, hourly-contract role offers 20–40 hours per week and meaningful, high-impact work across production systems with data, research, and engineering teams.

You will build streaming data pipelines, develop full-stack tooling for data annotation and validation, and drive reliability and performance improvements in C#.