Job Description

Senior C# Full-Stack Engineer — AI Data & Infrastructure at Alignerr

Overview

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.

Base Pay Range

$50.00/hr – $75.00/hr

Position Details

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
  • 3‑5+ years of professional experience writing production C++ (with a focus on modern standards like C++17 or C++20)
  • Strong systems programming background in performance optimization, concurrency, and memory safety
  • 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

Seniority Level

Mid-Senior level

Employment Type

Contract

Job Function

Engineering and Information Technology

Industries

Technology, Information and Internet

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