Java API Developer, Assistant Vice President
"What You'll Be Doing"
What You'll Be Doing
Design, develop, and maintain Java backend services and REST APIs that support digital asset product flows (custody, tokenization, transfer agency, digital cash/settlement) and integrate cleanly into the broader platform.
Build API services that participate in the platform's centralized integration approach, supporting client/app onboarding and app-to-service integrations via an Integration Hub and secure gateways.
Implement APIs aligned to enterprise API design, security, and publishing requirements, ensuring designs are review-ready and compliant with internal standards around security, documentation, and platform requirements.
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 where applicable, for downstream reporting/analytics and operational workflows.
Build and maintain automated tests (unit/integration) and ensure strong quality gates for services supporting regulated digital asset processing.
Support production readiness, including observability (logs/metrics), incident triage, performance tuning, and resilience improvements for APIs operating in a regulated, high-availability environment.
Collaborate across teams to drive clear API contracts and dependencies for integrations to traditional platforms (e.g., custody/cash/fund accounting) as part of a hybrid digital and traditional operating model.
What We're Looking For
Strong experience building Java backend APIs (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 API services (web, security, data access).
Hands-on experience deploying and operating containerized Java microservices on Kubernetes (e.g., AKS), including working knowledge of core concepts such as Deployments, Services, Secrets, resource requests/limits, and basic troubleshooting in clustered environments.
Experience working with relational databases (e.g., Oracle) and ORM/data access patterns.
Proven ability to design and implement API contracts with strong discipline around versioning, backward compatibility, and documentation, aligned to internal API Development Standards.
Strong understanding of security-first API engineering in regulated environments, including authentication/authorization patterns, secure integration paths, and a least-privilege mindset.
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.
Bonus Points
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/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 DLT providers, and secure key infrastructure/HSM adjacency at a platform level.
Exposure to Node.js for front-end support or lightweight backend-for-frontend (BFF) services, including working with REST APIs and understanding how Node.js services integrate with enterprise Java or platform backends.
Ready to Apply?
To submit your application for this position, please visit State Street's official website and follow their application process.