2d ago

Principal Backend Engineer

Cardiff, London or Remote (UK)

$150k-$250k / yearest.

full-timelead Hybridfinance Visa Sponsor

🛠 Tech Stack

💼 About This Role

You'll partner with engineering leaders to shape technical direction at Monzo, driving impact across 100+ engineers over 1-5 year horizons. You'll remain hands-on in complex systems and architecture decisions, mentoring senior engineers and leading high-impact initiatives.

🎯 What You'll Do

  • Drive technical direction across collectives of 100+ engineers
  • Lead and influence architectural decisions for complex systems
  • Mentor and sponsor senior engineers to multiply impact
  • Partner with product leaders to align engineering with company goals

📋 Requirements

  • Track record leading complex, high-impact systems across multiple teams
  • 8+ years building large-scale backend, distributed or data-intensive systems
  • Strong technical judgment with product and business awareness
  • Experience influencing senior stakeholders across engineering and product

✨ Nice to Have

  • Experience defining technical strategy over multi-year horizons
  • Familiarity with Go, Cassandra, Kafka, Kubernetes, AWS
  • Open source contributions

🎁 Benefits & Perks

  • 💰 Base salary + performance incentive awards + share options
  • 🏡 Remote work setup with Macbook and home office support
  • 📚 £1,000 learning budget yearly for books, courses, conferences
  • Flexible working hours and trust-based schedule
  • ✈️ Visa sponsorship and relocation support to UK

📨 Hiring Process

Estimated timeline: 4-6 weeks

  1. 1Recruiter Call· 30 min
  2. 2Initial Call· 45 min
  3. 3System Design Interview· 60 min
  4. 4Take home task or pair coding exercise· 90 min
  5. 5Final interview (behavioural & leadership)· 60 min
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