Senior Java Backend Developer

OverviewJob PurposeIntercontinental Exchange, Inc. (ICE) is a global financial technology company that hosts derivative and equity trading exchanges including the New York Stock Exchange, Clearing, Data Services, Fixed Income, and Mortgage. ICE is seeking a Senior Java Backend Developer who will develop supporting middleware and APIs for our corporate public websites, associated internal applications, and emerging technologies. Application development activities include exposing RESTful web services, integrating with third-party APIs and other internal back-end systems, and working with business sponsors to translate business requirements to technical specifications.The candidate will be working with our existing back-end team to migrate our existing applications to microservices, expose APIs to be consumed by the website and supporting applications. Our applications must be highly performant, well tested, and implement best practices so we can support and extend our codebase. Our development team is a small yet highly productive group of professionals who thrive in an open, collaborative environment where ideas are shared and every contribution is valued. Strong written and verbal communication skills are essential — we expect team members to work independently, escalate issues proactively, and engage constructively in code reviews and feedback. When applying, be prepared to confidently answer technical questions related to the job requirements.We are seeking a candidate that will embrace our culture and core values: Collaboration, Problem Solving, Communication, Integrity & Professionalism, and Leadership. You will be working closely with other team members to develop the best possible solutions for our customers. We are looking for a passionate individual with strong problem-solving and analytical skills, someone who pays close attention to details, enjoys working with modern programming software, and continuously evaluates new technologies.ResponsibilitiesDesign, develop, and maintain scalable Java-based middleware, REST APIs, and microservices that power ICE's corporate public websites and internal applicationsTake ownership of assigned microservices and technology domains, serving as a subject matter expert and contributing architectural proposals and recommendations to the teamContinuously evaluate emerging technologies, frameworks, build tools, and APIs to identify opportunities that simplify workflows, reduce complexity, and improve team efficiencyCollaborate with front-end developers, business sponsors, and architects to translate business requirements into well-defined technical specifications and implementation plansContribute to the ongoing migration of legacy monolithic applications to a microservices architecture deployed on containerized platforms (OpenShift/Kubernetes)Integrate backend services with relational databases (PostgreSQL, Oracle), external third-party APIs, caching layers (Redis), and search platforms (Elasticsearch)Champion test-driven development practices by writing comprehensive unit and integration tests using JUnit and Mockito, maintaining high code coverage standardsParticipate actively in code reviews, providing and receiving constructive feedback to uphold engineering best practices and consistent coding standardsSupport non-production and production environments as issues arise, taking responsibility for the health and reliability of internal and external customer-facing systemsMonitor application performance using tools like Splunk, proactively identifying bottlenecks and driving optimization effortsContribute to CI/CD pipeline improvements using Jenkins, GitHub Actions, and Gradle to support frequent, reliable deploymentsDocument APIs using Swagger/OpenAPI and maintain clear technical documentation to support long-term maintainabilityMentor junior developers and actively contribute to a collaborative, learning-oriented team cultureKnowledge And ExperienceBS or MS in Computer Science or equivalent experience4+ years of experience in advanced Java development3+ years of experience with Spring Boot and associated Spring technologiesExperience with microservices developmentStrong experience with relational databases and complex SQLExperience with iterative/test-driven development, code refactoring, and continuous integrationExperience building REST APIs with integration to relational databases, external APIs, and other third-party librariesPassionate about learning new technologies and adapting to complex and fast-moving environmentsFamiliarity with AI-assisted development tools (e.g. Anthropic/Claude, GitHub Copilot, Gemini) to improve productivity and code qualityPreferred Knowledge And ExperienceAdvanced AI skills using agentic providers such as Anthropic/Claude, Codex, Gemini, etc.Docker, Kubernetes, OpenShiftGitHub ActionsREST design conceptsJUnit, MockitoORMs (e.g. JPA, Hibernate, myBatis)PostgreSQLOracleSwagger / OpenAPIRedisElasticsearchGradleIntelliJ IDEASplunkIntercontinental Exchange, Inc. is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to legally protected characteristics.