IT & Software

Java API Developer, Officer

State Street Bank

London · Greater London · United Kingdom

Overview

In this role you will design, develop, test, and support Java-based backend services and REST APIs within a financial services environment. You will deliver reliable, secure, and well-documented APIs that integrate with upstream and downstream systems to support business-critical workflows. You’ll collaborate with cross-functional teams to build scalable digital asset products that align with business and technical requirements. Expect hands-on development, automated testing, and production readiness activities that drive quality and maintainability. This role offers an opportunity to shape API governance and contribute to secure, enterprise-grade solutions.

Pay / Benefits
  • flexible work-life support
  • paid volunteer days
  • inclusive development opportunities
  • vibrant employee networks
Responsibilities
  • Design, develop, and maintain Java-based backend services and REST APIs to support financial workflows
  • Implement API design, security, versioning, and documentation standards
  • Collaborate with business and technology stakeholders in an Agile environment to deliver scoped API changes
  • Write automated unit and integration tests, participate in code reviews, and support release quality gates
  • Support production readiness through logging, monitoring, defect triage, and performance tuning under guidance
  • Maintain clear technical documentation for APIs and integrations (endpoints, payloads, dependencies)
Key requirements
  • Hands-on Java backend development experience with REST APIs in production or near-production environments
  • Proficiency with Java API frameworks and patterns (e.g., Spring Boot / Spring MVC) and maintainable service layers
  • Understanding of secure API fundamentals (authentication/authorization, data protection) and adherence to enterprise standards
  • Strong SDLC knowledge (source control, code reviews, automated testing) and experience in Agile delivery
  • Experience in a financial services or regulated environment emphasizing reliability, controls, and documentation
  • Cross-functional collaboration
  • Agile delivery mindset
  • Clear requirements clarification and good communication
  • Java backend development
  • REST API design and development
  • Spring Boot / Spring MVC

Reference: WJ-747_30179008

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