Sobre

• 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 building scalable backend services in C#.
• - Mastery of modern frameworks for building RESTful APIs and RPC services for inter-service communication.
• - Experience integrating with cloud-native data services and orchestrating workflows via message bus architectures.
• - 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
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• $50 - $75 an hour
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