{"schemaVersion":"jobsearcher.job.v1","id":"3ba812015f8531ced93d43aa","url":"https://jobsearcher.com/jobs/3ba812015f8531ced93d43aa","canonicalUrl":"https://jobsearcher.com/jobs/3ba812015f8531ced93d43aa","title":"Mid-Level Backend Software Engineer","description":"Job Title: Mid-Level Backend Software Engineer-TS/SCI\nLocation: Gaithersburg, MD\nType: Contract To Hire\nCompensation:\nWork Model: Onsite\nHours: 40.0\nSecurity Clearance: Top Secret/SCI\n\nOverview\nActive TS/SCI Security Clearance required with the ability to successfully pass a Polygraph\n\nResponsibilities\n\nDesign, develop, test, and maintain backend application components using Java or Python\nDevelop and maintain RESTful services to support application functionality and system integrations\nApply object-oriented design principles to build scalable and maintainable systems\nWrite and modify SQL queries to support application functionality and data retrieval\nCollaborate with internal and external teams to understand data sources, formats, and access methods, and support integration into backend systems\nDevelop and troubleshoot applications within Linux-based environments\nImplement backend logic for data transformation, processing, and system workflows\nIdentify, debug, and resolve application-level defects and performance issues\nFollow coding standards, participate in code reviews, and support documentation efforts\nRequirements\nBachelor’s degree in Computer Science, Software Engineering, or a related field with 4–8 years of experience; or a Master’s degree with 2–6 years of experience\nUS Citizenship\nActive TS/SCI with the ability to successfully pass a Polygraph\nProfessional experience developing object-oriented applications in Java or Python\nHands-on experience building and maintaining RESTful APIs\nBasic to moderate experience with SQL capability, including writing queries and working with relational databases\nWorking knowledge of Linux-based environments\nAbility to work independently on defined tasks within established technical frameworks and deliver reliable results\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-VR1\nRef: #856-Baltimore-S1","company":"Systemone","rawCompany":"systemone","city":"Gaithersburg","state":"MD","isRemote":false,"isActive":false,"createdAt":"2026-09-24T11:38:52.682Z","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":"15-1211.00","title":"Computer Systems Analysts","slug":"computer-systems-analysts"}],"industries":[{"code":"541512","title":"Computer Systems Design Services","slug":"computer-systems-design-services"},{"code":"541511","title":"Custom Computer Programming Services","slug":"custom-computer-programming-services"},{"code":"513210","title":"Software Publishers","slug":"software-publishers"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"Mid-Level Backend Software Engineer","description":"Job Title: Mid-Level Backend Software Engineer-TS/SCI\nLocation: Gaithersburg, MD\nType: Contract To Hire\nCompensation:\nWork Model: Onsite\nHours: 40.0\nSecurity Clearance: Top Secret/SCI\n\nOverview\nActive TS/SCI Security Clearance required with the ability to successfully pass a Polygraph\n\nResponsibilities\n\nDesign, develop, test, and maintain backend application components using Java or Python\nDevelop and maintain RESTful services to support application functionality and system integrations\nApply object-oriented design principles to build scalable and maintainable systems\nWrite and modify SQL queries to support application functionality and data retrieval\nCollaborate with internal and external teams to understand data sources, formats, and access methods, and support integration into backend systems\nDevelop and troubleshoot applications within Linux-based environments\nImplement backend logic for data transformation, processing, and system workflows\nIdentify, debug, and resolve application-level defects and performance issues\nFollow coding standards, participate in code reviews, and support documentation efforts\nRequirements\nBachelor’s degree in Computer Science, Software Engineering, or a related field with 4–8 years of experience; or a Master’s degree with 2–6 years of experience\nUS Citizenship\nActive TS/SCI with the ability to successfully pass a Polygraph\nProfessional experience developing object-oriented applications in Java or Python\nHands-on experience building and maintaining RESTful APIs\nBasic to moderate experience with SQL capability, including writing queries and working with relational databases\nWorking knowledge of Linux-based environments\nAbility to work independently on defined tasks within established technical frameworks and deliver reliable results\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-VR1\nRef: #856-Baltimore-S1","datePosted":"2026-09-24T11:38:52.682Z","dateModified":"2026-09-24T11:38:52.682Z","hiringOrganization":{"@type":"Organization","name":"Systemone","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Gaithersburg","addressRegion":"MD","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"3ba812015f8531ced93d43aa"},"url":"https://jobsearcher.com/jobs/3ba812015f8531ced93d43aa"}}