{"schemaVersion":"jobsearcher.job.v1","id":"3710c90ff8ff1190b25b5977","url":"https://jobsearcher.com/jobs/3710c90ff8ff1190b25b5977","canonicalUrl":"https://jobsearcher.com/jobs/3710c90ff8ff1190b25b5977","title":"Java Backend Engineer - Onsite Interview required","description":"Job Title: Java Backend Engineer\nLocation: Vienna, VA ONSITE INTERVIEW REQUIRED\nType: Contract, long term expected\nCompensation:W-2 or C2C, H1B ok, no OPT\nWork Model: Hybrid – 3 days onsite and 2 days remote\nHours: 40 hours a week\n\nResponsibilities\n\nDesign, build, integrate, and maintain secure backend services and APIs supporting mobile, web, enterprise, and partner systems.\nDesign for performance, reliability, resiliency, observability, quality, and responsiveness.\nCollaborate with cross-functional teams to define, design, and deliver sustainable technical solutions.\nDevelop and maintain unit, integration, and automated tests to support reliable delivery.\nApply secure coding, data protection, and engineering standards.\nTroubleshoot production defects, performance bottlenecks, integration issues, and complex service dependencies.\nRefactor code and conduct peer reviews to improve security, quality, readability, and maintainability.\nContribute to solution design, technical documentation, and proof-of-concepts that support architectural decisions.\nSupport services across testing, deployment, production troubleshooting, and continuous operational improvement.\nParticipate in Agile ceremonies and advocate for adaptive planning, automation, reusable solutions, and continuous improvement.\nShare knowledge and support the development of less experienced engineers.\n\nRequirements\n\nStrong Java experience, with Java 17 or newer preferred.\nSolid knowledge of enterprise Java, Spring, Spring Boot, web services, and RESTful APIs.\nExperience with automated testing frameworks and practices, such as JUnit and Mockito.\nProficiency with Git and CI/CD tools such as Maven, Docker, Jenkins, GitHub, or Azure DevOps.\nStrong understanding of databases, SQL, and data integration patterns.\nExperience troubleshooting distributed systems and designing scalable, resilient, observable microservices.\nExperience developing cloud-native applications, with Microsoft Azure strongly preferred.\nEffective communication, independent prioritization, and collaboration skills, including the ability to explain technical concepts to non-technical audiences.\n\nSystem One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions 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 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.\n\nSystem One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law.\n\n#M1\n#LI-CB3\n\nRef: #851-Rockville-S1","company":"Systemone","rawCompany":"systemone","city":"Oakton","state":"VA","isRemote":false,"isActive":false,"createdAt":"2026-09-22T11:44:03.787Z","occupations":[{"code":"15-1252.00","title":"Software Developers","slug":"software-developers"},{"code":"15-1299.08","title":"Computer Systems Engineers/Architects","slug":"computer-systems-engineers-architects"},{"code":"15-1251.00","title":"Computer Programmers","slug":"computer-programmers"}],"industries":[{"code":"541511","title":"Custom Computer Programming Services","slug":"custom-computer-programming-services"},{"code":"541512","title":"Computer Systems Design Services","slug":"computer-systems-design-services"},{"code":"513210","title":"Software Publishers","slug":"software-publishers"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"Java Backend Engineer - Onsite Interview required","description":"Job Title: Java Backend Engineer\nLocation: Vienna, VA ONSITE INTERVIEW REQUIRED\nType: Contract, long term expected\nCompensation:W-2 or C2C, H1B ok, no OPT\nWork Model: Hybrid – 3 days onsite and 2 days remote\nHours: 40 hours a week\n\nResponsibilities\n\nDesign, build, integrate, and maintain secure backend services and APIs supporting mobile, web, enterprise, and partner systems.\nDesign for performance, reliability, resiliency, observability, quality, and responsiveness.\nCollaborate with cross-functional teams to define, design, and deliver sustainable technical solutions.\nDevelop and maintain unit, integration, and automated tests to support reliable delivery.\nApply secure coding, data protection, and engineering standards.\nTroubleshoot production defects, performance bottlenecks, integration issues, and complex service dependencies.\nRefactor code and conduct peer reviews to improve security, quality, readability, and maintainability.\nContribute to solution design, technical documentation, and proof-of-concepts that support architectural decisions.\nSupport services across testing, deployment, production troubleshooting, and continuous operational improvement.\nParticipate in Agile ceremonies and advocate for adaptive planning, automation, reusable solutions, and continuous improvement.\nShare knowledge and support the development of less experienced engineers.\n\nRequirements\n\nStrong Java experience, with Java 17 or newer preferred.\nSolid knowledge of enterprise Java, Spring, Spring Boot, web services, and RESTful APIs.\nExperience with automated testing frameworks and practices, such as JUnit and Mockito.\nProficiency with Git and CI/CD tools such as Maven, Docker, Jenkins, GitHub, or Azure DevOps.\nStrong understanding of databases, SQL, and data integration patterns.\nExperience troubleshooting distributed systems and designing scalable, resilient, observable microservices.\nExperience developing cloud-native applications, with Microsoft Azure strongly preferred.\nEffective communication, independent prioritization, and collaboration skills, including the ability to explain technical concepts to non-technical audiences.\n\nSystem One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions 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 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.\n\nSystem One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law.\n\n#M1\n#LI-CB3\n\nRef: #851-Rockville-S1","datePosted":"2026-09-22T11:44:03.787Z","dateModified":"2026-09-22T11:44:03.787Z","hiringOrganization":{"@type":"Organization","name":"Systemone","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Oakton","addressRegion":"VA","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"3710c90ff8ff1190b25b5977"},"url":"https://jobsearcher.com/jobs/3710c90ff8ff1190b25b5977"}}