Senior C# AI Data Pipeline Engineer (Remote)

Alignerr Corp.; Seattle (WA); Remote; USD 83,000 - 131,000; Part time

Benefits offered by this job

Fully remote

Job summary

Alignerr is seeking a senior C# engineer to design and build high-performance data pipelines, annotation tooling, and evaluation infrastructure powering AI systems. This fully remote hourly contract role offers 20-40 hours per week and the chance to contribute across production-grade C# systems used in leading AI research labs.

Ideal candidates have 5+ years writing C# in production, strong systems programming, and experience with streaming data pipelines and distributed data ingestion.

Qualifications

• 5+ years of professional experience writing production-grade C#.
• Experience building streaming data pipelines using asynchronous streams.
• Strong systems programming background.
• Able to commit 20-40 hours per week for a remote contract.
• Experience with distributed data ingestion and reliability improvements.

Responsibilities

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

Skills

C# expert

Streaming data pipelines

Async streams

I/O optimization

Distributed ingestion

Tools

.NET

Reactive Extensions

Job description

Alignerr is seeking a senior C# engineer to design and build high-performance data pipelines, annotation tooling, and evaluation infrastructure powering AI systems. This fully remote hourly contract role offers 20-40 hours per week and the chance to contribute across production-grade C# systems used in leading AI research labs.

Ideal candidates have 5+ years writing C# in production, strong systems programming, and experience with streaming data pipelines and distributed data ingestion.