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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Sr.Java Full Stack Developer - **Company:** System One - **Location:** Pittsburgh, PA, United States - **Experience:** Expert - **Contract:** Temporary to permanent - **Skills:** HTML, Java (Programming Language), Application Programming Interfaces (APIs), Agile Methodology, Cascading Style Sheets (CSS), Databases, Continuous Delivery, Continuous Integration, Software Design Documents, DevOps, Github, Design of User Interfaces, Java Web Services, JSON, Enterprise Messaging Systems, Microsoft SQL Server, MongoDB, Node.Js, OpenShift, Oracle (Applications), Swagger, Simple Object Access Protocol (SOAP), Systems Integration, Extensible Markup Language (XML), Java Application Server, Spring-boot, Software Security, Backend, Containerization, AngularJS, Kubernetes, Information Technology, IBM UrbanCode Deploy, Apache Kafka, Front End Software Development, Restful APIs, Jenkins, Microservices - **Published:** August 27, 2026 - **Apply:** https://www.techcareers.com/job.asp?id=3365543225&tx=FJ5552FFL&pt=1&aff=0B19D771-A501-4A5E-8338-2A822B784D54&utm_source=Job%20Feed&utm_medium=textkernel&utm_campaign=DE&utm_term=0B19D771-A501-4A5E-8338-2A822B784D54 ## About the Role * At least 6+ years of Java API development experience with REST API, Spring Boot, XML, JSON, Swagger. * Minimum 6+ years of experience developing and consuming SOAP and REST web services in production environments. * 5+ years of front-end UI development experience using Angular, HTML, and CSS. * Hands-on experience with OpenShift, containerization, Kubernetes, and microservices architecture. * 3+ years working with GitHub, Jenkins, and CI/CD pipelines. * Proficiency with client-side technologies like Node JS and Angular 8+. * Experience with Kafka, MongoDB, and integrating Java applications with Oracle/SQL Server databases. * Strong understanding of security best practices to prevent vulnerabilities in coding. * Excellent collaboration, communication, and interpersonal skills in an Agile team environment. ## Description * Design, develop, and maintain Java API services, including RESTful APIs and microservices, ensuring scalability, security, and high performance. * Work with front-end UI development using Angular, HTML, and CSS to create engaging, user-friendly interfaces. * Implement and optimize API standards and services, collaborating with cross-functional teams to build large-scale features. * Develop, test, and deploy backend components using Spring Boot, microservices, and containerization technologies such as OpenShift and Kubernetes. * Integrate Java-based applications with databases like Oracle, SQL Server, MongoDB, and messaging systems such as Apache Kafka. * Utilize DevOps tools including Jenkins, uDeploy, GitHub, and CI/CD pipelines to automate workflows and ensure continuous delivery. * Review design documents, create technical systems designs, and translate requirements into functional solutions. * Collaborate with internal and external stakeholders, including API developers, business analysts, and QA teams, within an Agile environment. * Research and apply modern libraries and technologies to expedite development and improve application security., System One, and its subsidiaries including Joulé, ALTA IT Services, CM Access, TPGS, and MOUNTAIN, LTD., are leaders in delivering workforce solutions and integrated services across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible full-time employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan. ## Related Videos - [The Resilience of the World Wide Web](https://www.wearedevelopers.com/videos/1281-the-resilience-of-the-world-wide-web) - [Tips and Tricks for Working with JSON](https://www.wearedevelopers.com/videos/1229-tips-and-tricks-for-working-with-json) - [Innovating Developer Tools with AI: Insights from GitHub Next](https://www.wearedevelopers.com/videos/1268-innovating-developer-tools-with-ai-insights-from-github-next) - [Kubernetes Native Java](https://www.wearedevelopers.com/videos/383-kubernetes-native-java) - [NoLoJS - Avoiding JavaScript Cruft with HTML and CSS - Aaron T. 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