> Markdown version of [/jobs/ext/2217854-sr-java-api-developer](https://www.wearedevelopers.com/jobs/ext/2217854-sr-java-api-developer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Sr.Java API Developer - **Company:** System One - **Location:** Pittsburgh, PA, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Application Programming Interfaces (APIs), Agile Methodology, Continuous Integration, DevOps, Github, JSON, Microsoft SQL Server, MongoDB, Node.Js, Open Source Technology, OpenShift, Oracle (Applications), Swagger, Simple Object Access Protocol (SOAP), Systems Integration, Extensible Markup Language (XML), Java Application Server, Spring-boot, Git, Containerization, AngularJS, Kubernetes, IBM UrbanCode Deploy, Apache Kafka, Restful APIs, Jenkins, Microservices - **Published:** August 25, 2026 - **Apply:** https://dejobs.org/x/x/46973F50B57A4F2BB169D92B8EFFD684/job/ ## About the Role * At least 6+ years of experience in Java API development, REST APIs, Spring Boot, XML, JSON, and Swagger. * Proven experience developing and consuming SOAP and REST web services in a production environment. * Experience working with OpenShift, Containerization, and Microservices architecture. * 3+ years of experience with GitHub, Jenkins, and CI/CD pipelines. * Knowledge of client-side technologies such as Node.js and Angular 8+. * Hands-on experience with Kubernetes, Apache Kafka, and MongoDB. * Strong understanding of integrating Java applications with Oracle or SQL Server databases. * Excellent collaboration, communication, and writing skills in an Agile environment. ## Description * Design, build, and deploy Java RESTful services and microservices to support client applications. * Develop API standards, improve existing services, and collaborate with API developers across teams to build new features at large scale. * Create and review technical design documents, and translate detailed requirements into functional system designs. * Utilize DEVOPs tools such as Jenkins, uDeploy, and GIT to streamline deployment processes. * Work with open-source and library components to expedite development and enhance system capabilities. * Integrate applications with Oracle / SQL Server databases and work with containerization tools like OpenShift and Kubernetes. * Adhere to security best practices by coding to prevent hacking vulnerabilities. * Participate in Agile teams, providing technical expertise and effective communication across diverse groups. ## Related Videos - [How a Small Team Shrank a Microsoft Monorepo by 94%](https://www.wearedevelopers.com/videos/1236-how-a-small-team-shrank-a-microsoft-monorepo-by-94) - [Tips and Tricks for Working with JSON](https://www.wearedevelopers.com/videos/1229-tips-and-tricks-for-working-with-json) - [From DevOps to Scaled DevOps: How We’re Rebuilding Continuous Delivery as a Platform](https://www.wearedevelopers.com/videos/100018-from-devops-to-scaled-devops-how-we-re-rebuilding-continuous-delivery-as-a-platform) - [Kubernetes Native Java](https://www.wearedevelopers.com/videos/383-kubernetes-native-java) - [API = Some REST and HTTP, right? RIGHT?!](https://www.wearedevelopers.com/videos/1675-api-some-rest-and-http-right-right) - [Git for Code Reviews](https://www.wearedevelopers.com/videos/429-git-for-code-reviews) ## Related Articles - [Top 10 Java Libraries](https://www.wearedevelopers.com/magazine/364-top-10-java-libraries) - [93 Java Interview Questions You Should Prepare For](https://www.wearedevelopers.com/magazine/14-93-java-interview-questions-you-should-prepare-for) - [Java Basics](https://www.wearedevelopers.com/magazine/122-java-basics) - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [6 Reasons to Use Java For Your Next AI Project](https://www.wearedevelopers.com/magazine/111-6-reasons-to-use-java-for-your-next-ai-project) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers)