Principal Engineer - CPTO, BPL
Barclays • london, england • Posted June 30, 2026
About the Role
Principal Software Engineer, Platform, BPL
As an Engineering Lead in our Chief Product and Technology Office (CPTO) you’ll shape the architecture for tomorrow and mentor talented engineers, crafting elegant solutions for complex problems that millions depend on.
In this role, you’ll help design and build highly resilient, scalable distributed services that power critical business operations. You’ll work with modern JVM languages (primarily Kotlin), cloud‑native technologies, and contemporary frontend frameworks.
What you’ll be building:
- World‑Class Distributed Systems – Design and implement highly performant, fault‑tolerant distributed services that handle massive scale with grace. You’ll architect systems that survive failures, scale elastically, and deliver lightning‑fast response times.
- Domain‑Driven Excellence – Apply domain modelling principles to create clean, maintainable codebases that accurately represen...