Software Engineer

🚀 Software Engineer – Building at the forefront of AI

Package: ÂŁ60,000-ÂŁ140,000 (Depending on experience)

UK/London - | Early stage AI Startup | High Impact, High Curiosity Role

If you’re a curious engineer fresh out of university (or with 1–3 years of experience) and obsessed with AI, you will not find a more exciting position or business than this! We're hiring multiple positions and are open to a range of seniorities)

We’re partnering with an extremely well-funded, seed-stage AI company building something foundational: interactive, resettable digital environments where AI agents learn through experience, not just static datasets.

Think: instead of just training on text, AI learns by actively using software, from video editing tools to complex simulation platforms, inside high-fidelity digital sandboxes .

This role sits at the heart of that mission.

đź§  The Role:

You’ll design the actual training curriculum for AI systems.

That means:

  • Turning real-world software usage into hundreds of structured problems for AI models to solve
  • Writing prompts, defining expected behaviours, and building verifiers
  • Using Python + LLM APIs + clever tooling to generate tasks at scale
  • Experimenting constantly to improve how models learn

It’s hands-on, experimental, and highly technical. There’s rarely a single “right” answer -progress comes from trying things, iterating fast, and finding leverage .

If you like building scrappy prototypes, hacking together clever solutions, and seeing immediate results, you’ll thrive here.

🔍 What You’ll Be Doing

  • Creating structured problem sets that train AI models on real software
  • Building Python-based verification systems to evaluate AI behaviour
  • Collaborating with domain experts to translate messy real-world workflows into structured learning tasks
  • Designing tooling, scripts and agentic workflows that multiply output over time
  • Running fast feedback loops and QA to ensure quality before delivery

đź›  What we're Looking For

  • 1+ years using Python to solve real problems
  • Software engineering fundamentals
  • Experience using LLM APIs or working with agent-style systems
  • A hacker mindset - pragmatic, experimental, not obsessed with over-engineering
  • Comfort with shipping fast, learning fast, iterating fast
  • Genuine intellectual curiosity - you enjoy diving into new technical domains

This would suit someone:

  • Fresh out of university with strong internship experience
  • Or 1–2 years into their career and wanting serious responsibility
  • Who wants exposure to frontier AI work without 1,000 layers of corporate process

🌍 Why This Is Special

  • You’ll work on one of the most technically interesting problems in AI right now
  • Small team, massive impact — your work ships directly to leading AI labs
  • Seed-stage but well-funded and backed by top-tier founders and investors
  • High-trust, low-bureaucracy culture
  • Competitive salary + per-deliverable bonuses

This isn’t a “maintenance engineering” role. It’s experimental, foundational, and high-agency.

If you’re the kind of person who:

  • Builds side projects for fun
  • Breaks tools to understand how they work
  • Gets excited about LLMs and agent systems
  • Wants to be early in something that could matter

Please apply or DM me for details - they’re still in stealth, so we’ll share more privately 💜

đź“§ Alex@wearebloom.io

Job Details

Company
bloom
Location
City of London, London, United Kingdom
Posted