Top Java Developer Jobs in Austin, TX

The Java Developer will work on integrating platforms, developing custom APIs, and delivering software through agile methodology, focusing on performance and testing.

The Java Developer will enhance data utilization for a state-run project, collaborating on software design, coding, testing, and documentation of Java web applications.

Develop and maintain high-performance Java applications, work on web and mobile applications, and collaborate in Agile/Scrum teams.

Lead a team of developers to design, architect, and deliver scalable, secure microservices-based enterprise applications. Hands-on coding, code reviews, performance tuning, CI/CD, cloud deployments, stakeholder collaboration, and mentoring. Drive architecture, HLD/LLD, root-cause analysis, and timely delivery in Agile environments.

Develop and maintain highly available, distributed, high-throughput Java backend systems using Spring and microservices. Perform performance tuning, JVM and memory profiling, implement automated tests, use Splunk for monitoring, and work with source control and CI/CD tools. Collaborate across teams and follow Agile SDLC practices.

Design and build Java/Spring-based microservices and Kafka integrations. Create/design RESTful and SOAP web services, work with AWS, Spark/Big Data, and related messaging (RabbitMQ). Contribute to application design, potentially lead a small team, and work in Agile/DevOps environments; payments experience is a plus.

The Trading Platform Developer will design and implement functionality for a real-time trading platform, optimize systems, and troubleshoot production issues. A focus is on low-latency systems development.

Design, develop, test, deploy, and maintain enterprise Java applications for USPS. Build RESTful APIs with Spring, translate requirements into architecture, implement CI/CD/DevSecOps, integrate relational databases, troubleshoot complex issues, and collaborate with cross-functional Agile teams to deliver high-quality software solutions.

Design, develop, test, and deploy full-stack Java applications (backend Java/Spring Boot, frontend React/Angular, PostgreSQL). Lead architecture decisions, mentor developers, perform code reviews, troubleshoot issues, implement testing strategies (JUnit, Cypress, Playwright), collaborate with product/QA/DevOps in Agile, and support VA mission-critical initiatives while meeting security and clearance requirements.

Design, develop, and maintain Java/JEE enterprise applications. Perform full SDLC tasks, troubleshooting, DB ERD and data modeling, SQL tuning, code reviews, and produce software design and engineering documents.

Lead design, development, testing, and maintenance of enterprise Java microservices and front-end applications. Build APIs, CI/CD pipelines, and containerized deployments; troubleshoot production, ensure security/compliance, mentor junior developers, and collaborate within Agile teams.

Senior Java developer to maintain and scale a high‑profile sales application (Spectrum). Work includes Java backend development, REST web services, MySQL/Oracle integration, using Eclipse, EJB, JBoss and GWT frontend components. Collaborate with a small dev/QA team, redesign parts of the app, add interactive engineering document features, and follow agile practices. Strong communication skills required. Contract 6+ months.

Senior Java developer focused on front-tier development of a highly interactive application. Build and maintain GUI using Swing or GWT, implement and consume REST web services, work with MySQL, EJB, and JBoss, and develop using Eclipse IDE. Collaborate with team using common CI/CD and SCM tools.

Onsite Java developer responsible for full system lifecycle: analysis, technical requirements, design, coding, testing, implementation, and integrations. Participate in application development, build and release activities, and use DBMS and application server technologies.

Participate in full system lifecycle: analyze requirements, design, code, test, and implement J2EE web applications and integrations. Work with DBMS, application servers, build/release tools, and source control to deliver on-time solutions.

Build a Java/JavaScript-heavy platform/framework to integrate widgets with data streams using visualization libraries (D3, NVD3, Chartjs, Leaflet, Raphael, Google Visualizations, WebGL). Prefer Linux backend, gaming/gambling domain experience and BI web development background. Local Austin candidates who can start quickly prioritized.

Develop and maintain Java/J2EE APIs and applications using Spring, Jersey, Hibernate and REST. Build scalable, multi-threaded distributed systems, implement API security (OAuth2), use API tooling (Swagger/RAML), perform unit testing and code reviews, and work within global delivery teams.

Develop and test portal/web applications using AngularJS or ReactJS and Java-based backends. Work across the full SDLC with HTML5, jQuery, and JavaScript. Collaborate with diverse stakeholders in a global delivery environment and apply analytical problem-solving in a team setting.

Design, develop, and maintain Java/J2EE applications using Core Java, JSP/Servlets, Hibernate, Struts and application servers (WebLogic/Tomcat). Implement API authentication (OAuth2), API tooling (Swagger/RAML), unit testing and code reviews. Follow SDLC and project lifecycle activities, build scalable multi-threaded distributed systems, and collaborate within a global delivery environment.

Build and deliver backend enterprise web applications for Citi's Integrated Digital Assets Platform using Java/Spring and web3 technologies. Collaborate with distributed teams, follow best practices and design patterns, write technical documentation, resolve issues, and ensure scalability, reliability, and performance.

Design, build, and maintain server-side Java applications and RESTful APIs. Optimize performance and scalability, ensure security, collaborate with cross-functional teams, perform code reviews, troubleshoot production issues, and document system architecture.

Reverse-engineer TIBCO BW/MFT processes to extract business logic, then design and implement a modular Java/Spring Boot microservices replacement. Migrate protocols to Kafka/RabbitMQ/REST, translate XML transformations, ensure data persistence and consistency, and validate performance to meet existing SLAs.

Analyze legacy TIBCO BusinessWorks/MFT processes to extract business logic, design and build a decoupled Java/Spring Boot microservices platform, migrate protocols to Kafka/RabbitMQ/REST, translate XML-heavy transformations to modern formats, and validate performance and SLAs to match legacy throughput.

Design, build, and maintain Java/J2EE multi-layer applications and APIs. Collaborate with architects and DevOps to implement CI/CD, code quality, testing, and database solutions (DB2/Oracle, PL/SQL). Support cross-team delivery, resolve technical roadblocks, and drive process improvements in an asset management/financial services context.

Design, develop, and maintain high-performance, secure Java backend services and APIs. Ensure reliability, scalability, and cost-efficiency across microservices, databases, messaging systems, and capacity planning. Troubleshoot, profile, benchmark, and optimize systems (including ML applications) and collaborate with Kazakhstan stakeholders.