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State Street

Holds assets for institutions and runs index funds

Java API Developer - Assistant Vice President

Backend EngineeringConfirmed live in the last 24 hours
Full-timeLondon, UKNo salary listedIn-person

About the Job

Requirements

  • Strong experience building Java backend application programming interfaces using REST in financial services, ideally including 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 application programming interface services, including web, security, and data access.
  • Hands-on experience deploying and operating containerized Java microservices on Kubernetes, such as Azure Kubernetes Service, including Deployments, Services, Secrets, resource requests and limits, and basic troubleshooting in clustered environments.
  • Experience working with relational databases such as Oracle and object-relational mapping or data access patterns.
  • Ability to design and implement application programming interface contracts with disciplined versioning, backward compatibility, and documentation aligned to internal application programming interface development standards.
  • Strong understanding of security-first application programming interface engineering in regulated environments, including authentication and authorization patterns, secure integration paths, and least-privilege principles.
  • Experience delivering production-grade services using code reviews, automated testing, and operational readiness practices.
  • Experience working effectively with multi-location engineering teams.

Responsibilities

  • Design, develop, and maintain Java backend services and REST application programming interfaces that support digital asset product flows, including custody, tokenization, digital transfer agency, and digital cash or settlement, and integrate them into the broader platform.
  • Build application programming interface services that participate in the platform’s centralized integration approach, supporting client and application onboarding and application-to-service integrations through an Integration Hub and secure gateways.
  • Implement application programming interfaces that align with enterprise application programming interface design, security, and publishing requirements and ensure designs are review-ready and compliant with internal security, documentation, and platform 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 such as Digital Data Interface and Digital Event Stream concepts 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 using logs and metrics, incident triage, performance tuning, and resilience improvements for application programming interfaces operating in a regulated, high-availability environment.
  • Collaborate across teams to establish clear application programming interface contracts and dependencies for integrations with traditional platforms such as custody, cash, and fund accounting as part of a hybrid digital and traditional operating model.

Desired Qualifications

  • 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 systems, including standards-based messaging approaches and hybrid architectures used to connect platforms.
  • Exposure to event and data distribution patterns for digital assets, such as event streams and data interfaces that feed reporting, analytics, or monitoring.
  • Understanding of digital asset ecosystem concepts, including permissioned versus permissionless connectivity, third-party distributed ledger technology providers, and secure key infrastructure or hardware security module adjacency at a platform level.
  • Exposure to Node.js for front-end support or lightweight backend-for-frontend services, including working with REST APIs and understanding how Node.js services integrate with enterprise Java or platform backends.

About the Company

State Street

Holds assets for institutions and runs index funds

State Street holds and services investments for pension funds, insurers, fund companies, and other large institutions, and it also runs index funds through State Street Investment Management. It launched the first US-listed exchange-traded fund, the SPDR S&P 500 ETF Trust, in 1993, and in 1924 it became custodian of the first US mutual fund. As a custody bank, it safekeeps clients' stocks and bonds, completes their trades, calculates what their funds are worth, and lends their securities to other investors. It earns fees on the assets it services and manages, plus income from currency trading and from interest on client cash. State Street traces its roots to a bank chartered in 1792 and is based in Boston, Massachusetts.

Company size
10,001+
Company stage
IPO
Headquarters
Boston, MA
Founded
1792

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