Senior C# Engineer — AI Infra & Data Pipelines (Remote)

Alignerr Corp.; United States; Remote; MXN 1,029,000 - 1,544,000; Part time

Job summary

Alignerr Corp. seeks a senior full-stack C# engineer to design and build high-performance systems powering AI data pipelines and evaluation tooling.

You will work on production-grade code that sits at the heart of AI training and evaluation workflows, with remote collaboration across data, research, and engineering teams. The role emphasizes interoperability with Python, wrapping native libraries, and building benchmarking harnesses.

Qualifications

• 3–5+ years of professional experience writing production-grade C#.

Responsibilities

• Design high-performance C# systems for large-scale AI data pipelines and evaluation workflows.
• Develop full-stack tooling and backend services for data annotation, validation, and quality control at scale.
• Improve reliability, performance, and correctness across existing C# codebases.
• Build benchmarking and evaluation harnesses to measure system behavior.
• Implement interoperability—calling Python ML models from .NET or wrapping native libraries.
• Identify bottlenecks and ship scalable fixes.
• Collaborate with data, research, and engineering teams across model training and evaluation workflows.
• Participate in design reviews to iterate on architecture and implementation.

Skills

C# expertise

Full-stack development

Interoperability with Python

Benchmarking harnesses

Clear communication

English fluency

Part-time availability

Job description

Alignerr Corp. seeks a senior full-stack C# engineer to design and build high-performance systems powering AI data pipelines and evaluation tooling.

You will work on production-grade code that sits at the heart of AI training and evaluation workflows, with remote collaboration across data, research, and engineering teams. The role emphasizes interoperability with Python, wrapping native libraries, and building benchmarking harnesses.