Senior C# Full-Stack Engineer for AI Data Systems

Labelbox; Remote; GBP 80,000 - 100,000; Part time

Job summary

A leading AI solutions provider is seeking a Senior C# Full-Stack Engineer to develop high-performance systems for AI data management. The role includes building tools and services for data annotation and collaborating with interdisciplinary teams. The ideal candidate must have over 5 years of experience in C#, strong full-stack development skills, and the capacity to commit 20–40 hours per week. This is a competitive hourly contract role offered remotely from the United Kingdom.

Qualifications

• 5+ years of professional experience writing production C#.
• Strong systems programming background.
• Ability to commit 20–40 hours per week.

Responsibilities

• Design, build, and optimize high-performance systems in C#.
• Develop full-stack tooling and backend services for data annotation.
• Collaborate with teams to support model training workflows.

Skills

Fluent English

Full-stack development experience

C# programming

Data modeling

Database access using ORM

Clear communication skills

Job description

A leading AI solutions provider is seeking a Senior C# Full-Stack Engineer to develop high-performance systems for AI data management. The role includes building tools and services for data annotation and collaborating with interdisciplinary teams. The ideal candidate must have over 5 years of experience in C#, strong full-stack development skills, and the capacity to commit 20–40 hours per week. This is a competitive hourly contract role offered remotely from the United Kingdom.