Principal Software Engineer

Crossing Hurdles • london, england • Posted June 15, 2026

About the Role

Crossing Hurdles is a global recruitment consultancy assisting one of Europe’s leading software investors’ AI product incubators in hiring a Principal Software Engineer to build and scale real-world AI products used by thousands of customers worldwide.

This team operates like a serial startup engine — launching revenue-generating AI products inside established B2B businesses, combining startup ownership with enterprise scale.

Required Experience

  • 10–15 years full-stack engineering experience
  • Built customer-facing products from 0→1
  • Startup / founding-team or early-stage environment experience
  • Experience building B2B SaaS applications
  • Hands-on AI/ML product experience (LLMs, agentic systems)
  • Bachelor’s or Master’s in Computer Science or related field
  • Comfortable working with C-suite stakeholders
  • Proven ability to mentor and lead engineers

What You’ll Do

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