Job Overview
Job TitleSenior C# Full-Stack Engineer
Job TypeContractor
Offered Salary$150,000
LocationHybrid
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Job Description
About The Job
Alignerr connects top technical experts with leading AI labs to build, evaluate, and improve next-generation models. We work on real production systems and high-impact research workflows across data, tooling, and infrastructure.
Position
Senior C# Full-Stack Engineer — AI Data & Infrastructure
- Type: Contract
- Remote
- Commitment: 20–40 hours/week
- Compensation: Competitive, hourly (based on experience)
Role Responsibilities
- Design, build, and optimize high-performance systems in C# supporting AI data pipelines and evaluation workflows
- Develop full-stack tooling and backend services for large-scale data annotation, validation, 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 reviews to iterate on system design and implementation decisions
Qualifications
Must-Have
- Native or fluent English speaker
- Full-stack developer experience with a strong systems programming background
- 5+ years of professional experience writing production C#.
- Strong skills in data modeling and database access using ORM frameworks or micro-ORMs for high-performance SQL interactions.
- Experience building secure, documented endpoints for data access and manipulation.
- Clear written and verbal communication skills.
- Ability to commit 20–40 hours per week.
Preferred
- Prior experience with data annotation, data quality, or evaluation systems
- Familiarity with AI/ML workflows, model training, or benchmarking pipelines
- Experience with distributed systems or developer tooling
Application Process
- Submit your resume
- Complete a short technical screening
- Project matching and onboarding
Key skills/competency
- C#
- Full-Stack Development
- Systems Programming
- Data Modeling
- Database Access
- SQL
- API Development
- Performance Optimization
- AI Data Services
- Remote Work
How to Get Hired at Alignerr
- Tailor your resume: Highlight your 5+ years of C# experience and full-stack capabilities, emphasizing AI data services and systems programming.
- Showcase C# expertise: Detail your experience with high-performance SQL interactions, ORMs, and secure API development.
- Address preferred qualifications: If applicable, mention any experience with data annotation, AI/ML workflows, or distributed systems.
- Prepare for technical screening: Be ready to demonstrate your C# proficiency and problem-solving skills for AI data pipelines.
Frequently Asked Questions
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