Top Senior Java Developer Jobs

Develop and maintain Java-based, cloud-native applications and APIs (REST/GraphQL); implement containerized solutions with PostgreSQL and Docker; work in classified SCIF environments; collaborate on CI/CD, testing, and system design across Mac, Windows, and Linux.

Lead Java Full Stack Engineer to architect, develop, and operate enterprise-grade, cloud-native web applications and distributed systems. Responsible for end-to-end design, coding, deployment, observability, and collaboration with product, DevOps, and engineering teams in an Agile environment to deliver secure, performant solutions.

Designs and develops scalable, secure full-stack enterprise applications using Java back-ends and modern front-end technologies. Builds microservices, REST APIs, and responsive UIs; mentors developers; supports CI/CD, containerization, cloud deployments, production troubleshooting, and documentation to meet business and compliance requirements.

Design and implement deep Windchill Java customizations (services, listeners, processors, TAM, JSP/HTML extensions), optimize performance, lead migrations, support upgrades and post-go-live operations, document architecture, and mentor junior engineers.

Lead and deliver enhancements to the QUEST Java-based quoting system. Act as Intent Manager for a Kanban team, define requirements with SCRUM teams, design/code/test solutions, support production issues, and follow change control and SDLC processes to ensure system health and performance.

Leads application development and systems analysis, designing and implementing Java-based microservices, APIs, integrations, and database solutions. Responsibilities include architecture alignment, coding standards, code reviews, testing, defect resolution, root-cause analysis, CI/CD pipelines, deployment support, risk management, and mentoring developers. The role partners with management teams to deliver system enhancements and process improvements while ensuring compliance, security, performance, and maintainability.

Design, develop, and maintain scalable, cloud-native Java/J2EE services and APIs for equity investments. Collaborate with business and engineering teams to document requirements, implement multi-threaded solutions, create tests, perform code reviews, mentor junior engineers, and apply CI/CD and agile practices to deliver high-quality financial software.

Develop and modernize laboratory informatics software by converting Perl CGI applications to Java web services. Responsibilities include Java and Perl development, unit testing, SQL and database optimization, dynamic reporting, software design, application integration, code reviews, system interfaces, algorithm development, and architectural evaluations within regulated pharmaceutical and life sciences environments.

Develop and maintain end-to-end web applications using Angular and Spring Boot. Design RESTful APIs, integrate third-party services, build CI/CD pipelines with Terraform, and deploy cloud solutions on AWS. Optimize application performance, scalability, and security while participating in code reviews, testing, and debugging. Collaborate with designers, product managers, and developers, translate business requirements into technical solutions, and provide technical support during critical project phases.

Develop and maintain scalable full-stack web applications using Angular and Spring Boot. Design RESTful APIs, integrate third-party services, build cloud solutions, maintain Terraform-based CI/CD pipelines, and optimize application performance, scalability, and security. Participate in code reviews, testing, debugging, technical support, and cross-functional collaboration throughout the SDLC. The role requires strong Java expertise, database knowledge, DevOps familiarity, and flexibility during critical project phases.

Build and own Java backend integrations connecting workflow applications with enterprise systems through REST, SOAP, and related APIs. Develop data mappings, transformations, validations, SQL queries, and migration processes. Mentor developers, lead technical design and code reviews, and collaborate with analysts, project leaders, front-end engineers, and customers. Deliver tested code through deployment and provide production troubleshooting across application, integration, database, and server layers.

Technical leader responsible for designing, developing, testing, and supporting scalable web applications and services. Mentor engineers, drive engineering best practices, participate in production support/on-call, and collaborate with stakeholders to deliver cloud-native, secure, and high-performance solutions using Java/Angular, APIs, containers, and AWS CI/CD.

Design, develop, test, and maintain Java-based enterprise middleware and RESTful services. Improve service-layer business capabilities, ensure production stability, perform troubleshooting and code reviews, and collaborate in Agile delivery to modernize and deploy resilient, secure, compliant solutions.

Design, build, test, deploy and support Java-based microservices and cloud-native applications on AWS. Build APIs and event-driven integrations with Kafka, implement CI/CD and containerization (Docker, Kubernetes, OpenShift), optimize relational and NoSQL databases, troubleshoot production incidents, embed security and observability, mentor engineers, and drive modernization and AI-enabled engineering practices.

Design, develop, and modernize cloud-native, high-performance Financial Risk Management applications using Java/Spring Boot, microservices, AWS, Kafka, and React. Build automated testing frameworks, integrate tests into CI/CD, optimize Oracle and Snowflake interactions, participate in architecture and code reviews, troubleshoot production issues, and drive platform modernization and resiliency.

Design, develop, and maintain Java applications and APIs. Responsibilities include building microservices, integrating systems, and troubleshooting issues while collaborating with teams.

Design, develop, and maintain Java back-end and React front-end web applications. Implement RESTful APIs, integrate third-party services, work with SQL/NoSQL databases, conduct code reviews, debug and optimize performance, and collaborate with UX/UI designers and teammates for continuous improvement.

Develop, analyze, design, test, and implement enterprise Java/J2EE web applications and REST services. Support SDLC activities, mentor junior analysts, ensure code quality and security, work with microservices and databases, and collaborate with stakeholders to deliver reliable production applications.

Leads department-wide technical strategy, architecture, design, implementation, testing, and deployment of complex Java and cloud-based systems. Owns broad technical requirements, scalable distributed services, coding standards, system health, and production issue resolution. Partners with product, architecture, operations, and engineering teams; resolves technical conflicts; influences cross-functional decisions; mentors engineers; and improves engineering practices, tooling, and processes.

Develop low- and ultra-low-latency electronic trading systems using Core Java. Build performance-sensitive backend components involving market data, order books, trading logic, networking, and concurrency. Troubleshoot production performance and latency issues in Linux environments, with emphasis on trading workflows such as matching engines, exchange connectivity, order routing, and trading gateways.

Designs, develops, and enhances Java and Angular applications, microservices, REST and SOAP web services, and cloud-native systems. Builds responsive accessible user interfaces, automated tests, CI/CD pipelines, and high-throughput applications. Works with AWS, PostgreSQL, Kafka, and enterprise development tools while addressing code quality and security vulnerabilities. Collaborates with technical, QA, business, and project teams, supports architecture improvements, and mentors junior and mid-level developers. This is an on-site role in Woodlawn, Maryland, requiring the ability to obtain and maintain Public Trust clearance.

Develop and productize mission-focused software for deployment across Department of Defense environments. Responsibilities include removing customer-specific dependencies, abstracting configurations, building authorization and key-management interfaces, and supporting Java, C++, cryptography, encryption libraries, and OpenBao services. The role also involves migrating code across security environments, applying software best practices, testing, defect resolution, project planning, and collaboration with technical teams and clients.

Develop and productize a mission-focused software suite for broader DoD deployment. Responsibilities include removing customer-specific dependencies, abstracting configurations, developing authorization and key-management interfaces, supporting client, Portal, Proxy, encryption, and OpenBao services, and applying software development, testing, planning, and defect-resolution best practices.

Develop and maintain enterprise applications using Java 8, J2EE, Spring Boot and REST APIs. Design and optimize SQL/Oracle queries. Collaborate with UI/UX to implement user interfaces (prefer Angular 8). Integrate systems using JMS, Kafka, and GIS. Conduct code reviews, mentor junior developers, and participate in Agile development to ensure code quality and deliverables.

Architect, develop, deploy, and maintain enterprise-grade full-stack applications and distributed systems. Build Java and Spring Boot microservices, REST APIs, React front ends, cloud-native services, database solutions, CI/CD workflows, and production observability. Translate business requirements into technical designs, write production-quality code, and support applications throughout their operational lifecycle.