C# Infrastructure Engineer - Data Pipelines

Labelbox; A distancia; MXN 400,000 - 600,000; Jornada completa

Descripción de la vacante

A leading AI infrastructure company is seeking a Senior C# Full‐Stack Engineer to design and optimize high-performance systems for AI data pipelines. The position requires strong experience in C# and full-stack development, with a commitment of 20–40 hours per week. Ideal candidates possess clear communication skills and a background in data annotation or ML workflows. This remote role offers competitive hourly compensation ranging from $50 to $75 based on experience.

Formación

• 5+ years of professional experience writing production C#.
• Ability to commit 20–40 hours per week.
• Native or fluent English speaker.

Responsabilidades

• 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.

Conocimientos

Full‑stack developer experience

Strong systems programming background

Strong background in building streaming data pipelines

Clear written and verbal communication skills

Experience optimizing I/O-bound operations

Descripción del empleo

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 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

Application Process

1. Submit your resume
2. Complete a short technical screening
3. Project matching and onboarding

$50 - $75 an hour