Senior Java Backend Engineer — IAM & Cloud (Hybrid)
Summary
Senior backend engineer building high-scale Java (Spring Boot) services for a regulated financial services environment in Essex, focused on secure IAM (OAuth/Azure) and high-volume transactional workloads using TDD. Hybrid role requiring 4 days per week in the Essex office, with mentoring of junior engineers.
Square One Resources is seeking a backend engineer to design and build high-scale Java services in a regulated financial services environment. You will contribute to secure IAM solutions and support high-volume transactional workloads, applying TDD throughout the lifecycle.
The role requires experience in Java, Spring Boot, and IAM (OAuth/Azure) with exposure to cloud platforms (GCP/AWS/Azure). You will also mentor junior engineers and work in a 4-days-per-week office setting in Essex.