C# Infrastructure Engineer - Data Pipelines
Job in
Seattle, King County, Washington, 98127, USA
Listed on 2026-01-12
Listing for:
Alignerr
Full Time
position Listed on 2026-01-12
Job specializations:
-
IT/Tech
Data Engineer, AI Engineer, Data Science Manager, Systems Engineer
Job Description & How to Apply Below
Apply for the C# Infrastructure Engineer – Data Pipelines role at Alignerr
Base pay range$50.00/hr – $75.00/hr
About The JobAlignerr 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.
PositionSenior C# Full‑Stack Engineer – AI Data & Infrastructure
Type:
Contract
• Remote
• Commitment: 20–40 hours/week
• Compensation:
Competitive, hourly (based on experience)
- 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
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 background in building streaming data pipelines using asynchronous streams and reactive programming concepts
- Experience optimizing I/O‑bound operations and implementing resilient retry policies for distributed data ingestion
- 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
- Submit your resume
- Complete a short technical screening
- Project matching and onboarding
Mid‑Senior level
Employment typeContract
Job functionInformation Technology
IndustriesTechnology, Information and Internet
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