Java API Developer Assistant Vice President

Salary: £60,000 - 90,000 per year

Requirements:

• Strong experience building Java backend APIs in financial services, ideally in digital assets or closely related domains such as custody, cash, fund services, or regulated platforms.
• Hands-on expertise with Spring Boot and common Spring components used for API services, including web, security, and data access.
• Hands-on experience deploying and operating containerized Java microservices on Kubernetes, such as AKS, with knowledge of Deployments, Services, Secrets, resource requests/limits, and basic troubleshooting.
• Experience working with relational databases such as Oracle and ORM/data access patterns.
• Proven ability to design and implement API contracts with strong discipline around versioning, backward compatibility, and documentation.
• Strong understanding of security-first API engineering in regulated environments, including authentication, authorization, secure integration paths, and least privilege.
• Experience delivering production-grade services with strong engineering practices, including code reviews, automated testing, and operational readiness.
• Experience working effectively with multi-location engineering teams.
• Experience building services that integrate with digital asset platform components such as tokenization, wallet management, smart contract management, or custody-related workflows.
• Familiarity with integration models that span traditional and digital, including standards-based messaging approaches and hybrid architectures.
• Exposure to event and data distribution patterns for digital assets, such as event streams and data interfaces for reporting, analytics, and monitoring.
• Understanding of digital asset ecosystem concepts, including permissioned vs permissionless connectivity, third-party DLT providers, and secure key infrastructure/HSM adjacency.
• Exposure to Node.js for front-end support or lightweight backend-for-frontend services, including REST APIs and integration with enterprise Java or platform backends.

Responsibilities:

• Design, develop, and maintain Java backend services and REST APIs that support digital asset product flows, including custody, tokenization, transfer agency, and digital cash/settlement.
• Build API services that support the platforms centralized integration approach, including client and app onboarding and app-to-service integrations via an Integration Hub and secure gateways.
• Implement APIs that align to enterprise API design, security, and publishing requirements and are review-ready and compliant with internal standards.
• Partner with product, architecture, and security stakeholders to implement policy-aware integration patterns.
• Contribute to digital asset data patterns, including standardized interfaces and integration points for downstream reporting, analytics, and operational workflows.
• Build and maintain automated unit and integration tests and ensure strong quality gates for services supporting regulated digital asset processing.
• Support production readiness through observability, incident triage, performance tuning, and resilience improvements for APIs in a regulated, high-availability environment.
• Collaborate across teams to drive clear API contracts and dependencies for integrations to traditional platforms as part of a hybrid digital and traditional operating model.

Technologies:

• API
• Backend
• Frontend
• HSM
• Support
• Java
• Kubernetes
• Oracle
• REST
• Security
• Spring
• Spring Boot
• Web
• microservices
• NodeJS

More:

We are State Street, and institutional investors around the world rely on us to help them manage risk, respond to challenges, and drive performance and profitability. Our Digital Asset development team is building secure, resilient API services that power institutional digital asset capabilities, and this role is a hands-on engineering position based in London, England. We are committed to an inclusive environment where every employee feels valued and empowered, with development opportunities, flexible work-life support, paid volunteer days, and employee networks. This is a full-time opportunity, and we welcome qualified applicants as an equal opportunity employer.

last updated 34 week of 2026