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🥝 Principal Software Engineer (£300k)

Dex | london, United-Kingdom | Posted May 28, 2026

Job Description

Title: Staff / Principal Engineer (High-Growth Startups)

Location: London, hybrid

Salary: Up to £300,000 + Meaningful Equity

The role

Up to £300k plus serious equity for Staff and Principal engineers at the strongest London startups. AI-native, developer tools, fintech, B2B SaaS, all post product-market fit and scaling fast.

The work

  • Set technical direction across critical product surfaces
  • Lead architecture for systems that need to scale 10x within 12 to 18 months
  • Mentor senior and mid-level engineers, raise the bar across the team
  • Partner directly with founders, CTOs, and product leadership

What you bring

  • Strong track record at Staff or Principal level, ideally at multiple high-growth companies
  • Deep technical breadth: backend, frontend, infra, or systems
  • History of leading non-trivial architectural decisions and seeing them through <...

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