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The Full Stack Java Software Engineer will build, enhance, and maintain software applications, APIs, and dissemination tools. They will also participate in all stages of the SDLC and contribute to cloud-based application development.
Candidates should have 4+ years of experience with Java, Python, SQL, and other programming languages in a Linux/UNIX environment. A Bachelor's degree in a related field is preferred, and candidates must be able to obtain a Public Trust.
Systems Integration & Development (SID) is an award-winning IT solutions provider headquartered in McLean, VA seeking a Full Stack Java Software Engineer. This is hybrid 3 days onsite in Silver Spring, MD. Roles and Responsibilities Build, enhance, and maintain software applications, APIs, and dissemination tools using Java, Python, SQL, PL/SQL, Perl, and related technologies in a Linux/UNIX environment. Develop and maintain responsive websites and web applications using HTML, CSS, JavaScript, Bootstrap, jQuery, Leaflet, and Web Services; contribute to mobile application development initiatives. Design, implement, and support RESTful and SOAP-based Web Services for data retrieval, processing, and integration with other systems. Participate in all stages of the SDLC, including requirements gathering, design, coding, testing, documentation, implementation, and maintenance. Responsible for testing of code Contribute to cloud-based application development (AWS or other environments) Monitor application performance, provide troubleshooting support using browser Developer Tools, and work closely with administrators to ensure high availability. Create and maintain clear documentation for systems, applications, APIs, and operational procedures. Identify opportunities to improve existing processes, systems, and applications while ensuring adherence to deadlines and development goals. Additional duties as assigned. 4+ years using Java, Python, SQL, and other high level programming languages in a primarily Linux/UNIX based environment. Bachelors Degree in computer science, physical sciences, mathematics, engineering or related discipline, or equivalent; preferred. Must have or be able to obtain a Public Trust for this position. Experience developing enhancements to existing applications and work on larger projects involving the development of software. Experience creating Web Services, that have been used in production settings; with Linux/Unix, is preferable Experience developing and maintaining applications and dissemination tools (i.e. APIs) using Java, Python, PL/SQL, CGI, Perl and relational databases. Experience developing and maintaining websites with HTML, CSS, JavaScript, Bootstrap, leaflet, jQuery, Web services Experience in Mobile Application Development is a plus Experience in Web Service technologies such as SOAP/WSDL and REST developing RESTful APIs for data retrieval and Web Applications Experience with AWS or other cloud environments Maintain existing data processing applications, including APIs, websites, and dissemination tools Must be able to meet assigned development goals with a high quality of output and meet target delivery dates Proficient in the use of browser Developer Tools for troubleshooting Systems Integration & Development (SID) offers a unique, stimulating and challenging environment that fosters individual growth and rewards performance. Systems Integration & Development (#SID) is an Equal Opportunity Employer. Some of our competitive benefits include Generous Paid Time Off (PTO) and all Federal Holidays off Comprehensive Health Coverage Retirement Savings Plan Pre-Tax Benefit Programs Wellness and Work-Life Support Professional Development Performance and Referral Bonuses Life and Disability Insurance
This job posting was last updated on 9/30/2025