Top Java Developer Jobs

Develop and maintain software supporting a national security mission. Responsibilities include Zabbix development, scripting, and software engineering in Python, Java, CSC, and Linux environments. The role requires collaboration on daily program responsibilities and delivering timely, innovative solutions. Candidates must hold an active Top Secret/SCI clearance with a favorable polygraph and have substantial software engineering experience plus a bachelor's degree.

Develop and maintain enterprise full-stack applications across Java backends and React-based user interfaces. Build REST and SOAP services, implement security and database integrations, write unit tests, and support CI/CD pipelines. Collaborate with engineering teams, Agile pods, and offshore partners across time zones. The role requires extensive Java, Spring Boot, Hibernate, enterprise framework, frontend, testing, database, and source control experience.

Architect, develop, maintain, and enhance complex full-stack software systems supporting mission-critical environments. Build scalable solutions for large datasets, real-time systems, analytics, and enterprise applications using Java, JavaScript, and modern frameworks. Design reusable components, optimize performance, collaborate with stakeholders, support the full software development lifecycle, and mentor developers while influencing technical direction.

Develop and maintain scalable customer-facing full-stack applications using Java, Spring Boot, Angular, REST APIs, and cloud technologies. Design software, automate testing, deploy applications, and support CI/CD pipelines. Collaborate with architecture, UX, and product teams in an Agile environment. Mentor junior engineers, conduct code reviews, improve development practices, and translate business requirements into technical solutions.

Build full-stack mission software for an Intelligence Community SIGINT program. Develop responsive front-end interfaces and scalable Java Spring Boot REST APIs, integrate services, support cloud deployments, troubleshoot performance, and participate throughout the software lifecycle. Collaborate with product owners, testers, and developers while documenting work in Jira, Confluence, SharePoint, or similar tools. The role is onsite at Fort Meade and requires an active TS/SCI clearance with Full Scope Polygraph.

Develop and optimize Java customizations for the PTC Windchill platform, including services, workflows, listeners, processors, data models, JSP extensions, queues, and background processes. Support platform upgrades, migrate legacy customizations, troubleshoot production issues, document solutions, conduct code reviews, collaborate with consultants and stakeholders, and mentor junior engineers.

Develop and maintain scalable Java and Spring Boot backend applications and REST APIs. Optimize CPU, memory, and overall application performance; identify bottlenecks; resolve production issues; and contribute to architecture, code reviews, reliability, and scalability. The role also involves Node.js or Python FastAPI services, cross-functional collaboration, and potential work with GraphQL, generative AI, cloud platforms, containers, CI/CD, and monitoring tools.

Develop and support enterprise full-stack applications using Java, Spring Boot, React, PostgreSQL, and REST APIs. Design secure UIs, database schemas, integrations, and data migrations; manage deployments, version control, and CI/CD pipelines. Participate in agile development and O&M support while ensuring accessibility and security compliance. The onsite Washington, D.C. role supports government customers and requires an active Top Secret clearance with SCI and CI polygraph eligibility.

Develop and support enterprise full-stack applications using Java, Spring Boot, React, and PostgreSQL. Design secure REST APIs, responsive user interfaces, database schemas, and migration solutions. Manage deployments, version control, CI/CD pipelines, documentation, accessibility, security compliance, and full software lifecycle activities within an agile Scrum environment. The role is onsite at a government facility in Washington, D.C.

Develop and maintain core Java web applications using Java 17+, Jakarta Servlets, REST APIs, JSP, Apache Tomcat, JDBC, and MariaDB. Build LDAP authentication, SSH-based tools, PKI and certificate solutions, cryptographic functions, and secure data transmissions on Linux. Configure Tomcat and HTTPD, manage deployments, troubleshoot systems, and collaborate with technical and nontechnical stakeholders. This is an onsite Chantilly, Virginia role requiring an active TS/SCI clearance with polygraph and U.S. citizenship.

Design and develop Java Spring Boot backend microservices for a Master Data Management platform, including data ingestion, validation, match-merge, golden records, workflows, REST APIs, and downstream integrations. Build AWS-based processing and orchestration solutions, implement security controls, optimize performance, write tests, support containerized CI/CD deployments, and contribute to architecture, documentation, code reviews, and Agile delivery.

Develop and support high-performance Java and Kafka applications using Spring Boot, microservices, REST APIs, and event-driven architecture. Build Kafka producers, consumers, topics, partitions, and schemas; integrate enterprise systems; optimize availability, resilience, and performance; and work with SQL and NoSQL databases. Collaborate with architects, business analysts, and DevOps teams, contribute to CI/CD and automated testing, provide technical guidance, and help lead solution development and technical teams.

Design, develop, test, and maintain Java-based enterprise applications and scalable REST APIs/microservices using Spring Boot. Work with relational databases, unit/integration tests, CI/CD, version control, and participate in Agile ceremonies. Support cloud deployments, debugging, code reviews, and collaborate with cross-functional teams.

Lead design, develop, test, and support enterprise backend services using Java/Spring Boot and Python. Build RESTful APIs, integrate data services, and deliver AI/ML-enabled features (LLMs, RAG, vector search) through the full SDLC. Produce architecture artifacts, ensure code quality, observability, security, and collaborate in Agile teams.

Leads development of secure, scalable Java and AWS software systems, including microservices, event-driven platforms, and production machine-learning systems. Designs data and feature pipelines, model deployment and monitoring, automation, CI/CD, and operational stability practices. Guides code reviews, testing, secure coding, vendor evaluations, and responsible adoption of AI-assisted engineering tools. Collaborates across product, data, platform, SRE, and governance teams while promoting MLOps, LLM, observability, and model-monitoring practices.

Lead full-stack engineering within Payments Technology: design, develop, and maintain secure, resilient Spring Boot/Java services; drive CI/CD, Kafka event-driven solutions, AI-assisted engineering adoption, and architectural reviews to improve stability and delivery.

Leads the design, development, and support of enterprise-scale full-stack applications using Java, Spring Boot, Angular, React, AWS, Kafka, Docker, and Kubernetes. Designs scalable microservices, REST APIs, distributed and event-driven systems, CI/CD pipelines, and cloud-native platforms. Drives architecture, technical standards, resiliency, observability, security, performance, and production support while mentoring engineers and collaborating with product, architecture, platform, and business stakeholders.

Leads development of resilient, scalable Java and Python services, enterprise integrations, and AI-assisted engineering practices. Architects microservices, Kubernetes deployments, messaging, observability, and backend infrastructure. Builds ML pipeline and feature-store capabilities for fraud and risk models, operationalizes models, and creates agentic AI services with production guardrails, monitoring, governance, and auditability. Mentors engineers, coordinates delivery across stakeholders, and ensures security, performance, testing, and operational requirements.

Develops secure, stable, and scalable software within an agile team. Responsibilities include designing, coding, testing, troubleshooting, and maintaining Java applications and APIs; considering upstream and downstream system impacts; applying SDLC automation; analyzing data to resolve problems; and contributing to application resiliency, security, and operational stability. The role collaborates across the software development lifecycle and supports continuous technical growth.

Leads software engineering efforts within an agile banking technology team. Provides technical guidance, develops and reviews secure production code, drives AI-assisted engineering practices, influences application design and technical operations, and supports system design, testing, troubleshooting, and production systems. Requires strong Java and Spring Boot skills, clean coding and design-pattern expertise, full software lifecycle experience, and experience with low-latency, high-throughput systems.

Leads end-to-end full-stack software engineering for secure, scalable risk framework products. Responsibilities include Java and Spring Boot development, React and TypeScript frontend engineering, system design, API and event-driven integrations, automated testing, DevOps, SRE, observability, incident response, and reliability improvements. The role also establishes technical direction, reviews code, evaluates architectural solutions, automates recurring remediation, and coaches teams on secure, responsible use of AI-assisted engineering tools.

Leads end-to-end development and maintenance of complex Java and Spring Boot applications. Responsibilities include requirements gathering, technical design, coding, code reviews, testing, deployment, monitoring, troubleshooting, technology evaluation, and change management. The role provides technical guidance, mentors team members, coordinates support, influences cross-functional decisions, and may lead multiple small-to-medium projects.

Build, test, troubleshoot, and support complex full-stack applications in global team environments. The role includes 4–8 weeks of Java-focused training, ongoing mentorship, and a 12–24 month client placement. Responsibilities involve applying software engineering principles, database concepts, test-driven development, monitoring, and SDLC practices while collaborating with development teams.

Supports Vanguard’s modernization program by converting COBOL applications, batch jobs, and stored procedures to cloud-based Java solutions. Performs data integration, ETL support, code analysis, performance tuning, benchmarking, testing, production support, and SLA validation. Collaborates with application, database, infrastructure, and engineering teams to ensure functional equivalency, data synchronization, scalability, and performance parity. Provides technical expertise, participates in inspections, resolves complex issues, and mentors less-experienced staff.

Develop and maintain secure Java applications and integrations across the full software development lifecycle for Department of Veterans Affairs healthcare systems. Responsibilities include translating requirements into code, automated testing, data validation, logging, secure error handling, code reviews, defect resolution, documentation, CI/CD, production support, and technical risk mitigation. The role collaborates with analysts, architects, testers, DevSecOps engineers, and product owners in a distributed Agile environment.