Software Engineer

About this role

Work on Frontier AI Systems | Via
10x.team
| Major AI Lab Partner
Location Requirement:
Europe (EU + UK)


The Opportunity
10x.team is assembling a select group of senior European software engineers to support leading frontier AI labs in training next-generation models.


This is not traditional engineering work. This is model shaping.


You will help advanced AI systems reason better about software engineering: from system design and architecture decisions to debugging logic, code optimization, and production-grade problem solving. If you care about engineering excellence, deep technical reasoning, and the future of intelligent systems, this is your arena.


Your Mission
You will contribute to reinforcement learning from human feedback (RLHF) datasets that strengthen AI reasoning across software engineering contexts.


Specifically, You Will

• Draft complex prompts involving real-world engineering challenges; system design, architecture trade-offs, debugging scenarios, performance optimization, and code review workflows
• Evaluate and refine AI-generated code and technical responses for correctness, best practices, scalability, and production-readiness
• Create variants of prompts tailored to different personas (e.g., senior backend engineer, DevOps lead, frontend architect, junior developer seeking guidance, CTO evaluating trade-offs)
• Design examples that intentionally expose weaknesses in AI coding and reasoning — e.g., subtle bugs, race conditions, security vulnerabilities, poor architectural decisions, or flawed complexity analysis
• Collaborate asynchronously with our research coordination team

This is structured, high-focus intellectual work.


Who We're Looking For
You are an experienced software engineer with a strong track record of building and shipping production systems.


Minimum Profile

• 5+ years of professional software engineering experience
• Based in an EU or UK jurisdiction
• S...