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Haystack

Software Engineer

Haystack
Germany · Contract · Mid-Senior
We're working with a leading research accelerator for frontier AI labs and a trusted partner for global enterprises deploying advanced AI systems, based in San Francisco.

The Role

  • Curate code examples, build solutions, and correct code for AI model training
  • Evaluate and refine AI-generated code to ensure efficiency, scalability, and reliability
  • Collaborate with cross-functional teams to enhance AI-driven coding solutions
  • Build agents that can verify the quality of code and identify error patterns
  • Hypothesize on steps in the software engineering cycle and evaluate model capabilities
  • Design verification mechanisms that can automatically verify solutions to software engineering tasks

What You'll Need

  • 3+ years of software engineering experience
  • Strong expertise in building full-stack applications and deploying scalable, production-grade software
  • Deep understanding of software architecture, design, development, debugging, and code quality/review assessment
  • Excellent oral and written communication skills for clear, structured evaluation rationales
  • Ability to work with Python, JavaScript (including ReactJS), C/C++, Java, Rust, and Go

What's On Offer

  • Opportunity to work on cutting-edge datasets for training, benchmarking, and advancing large language models
  • Flexible commitment, minimum 10 hrs/week up to 40 hrs/week (partial PST overlap required)
  • Competitive hourly rate
  • Fully remote work with flexible hours

Apply via Haystack today!

Key Skills

Ranked by relevance

ai javascript reactjs python java rust san
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Country Guide

Germany

Strong tech sector & EU Blue Card visa

Posted
Jun 16, 2026
Type
Contract
Level
Mid-Senior
Location
Munich
Company
Haystack

Industries

Technology Information Internet

Categories

Engineering Information Technology

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