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Senior Backend Engineer; C AI Data Platform
Job in
Denver, Denver County, Colorado, 80285, USA
Listed on 2026-01-12
Listing for:
Alignerr
Full Time
position Listed on 2026-01-12
Job specializations:
-
IT/Tech
Data Science Manager, AI Engineer
Job Description & How to Apply Below
Join to apply for the Senior Backend Engineer (C#) – AI Data Platform role at Alignerr.
This range is provided by Alignerr. Your actual pay will be based on your skills and experience — talk with your recruiter to learn more.
Base Pay Range$50.00/hr – $75.00/hr
Employment DetailsEmployment Type: Contract
Location: Remote
Commitment: 20–40 hours/week
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.
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
- 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
- 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
- Submit your resume
- Complete a short technical screening
- Project matching and onboarding
Referrals increase your chances of interviewing at Alignerr by 2x.
Apply BELOW
Position Requirements
10+ Years
work experience
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