SWEHerndon with Security Clearance

Software Engineer — Early Career (TS/SCI with CI Polygraph) About the Role OGS is seeking a full-time Early Career Software Engineer with 3-6+ years of experience to join an agile development team supporting mission-critical customer programs. In this role you will perform full stack software engineering — contributing to design, development, testing, and deployment across the front end, back end, and supporting services. This is a hands-on position with room to grow. You will work alongside senior engineers, participate in sprint ceremonies, and take ownership of features from requirements through delivery. If you are early in your career and want to build depth on a team that ships software for real operational users, this is a strong place to start.

What You'll Do
Design, develop, test, and sustain full stack software applications on an agile development team
Participate in sprint planning, daily stand-ups, code reviews, retrospectives, and demos. Translate system and user requirements into working software and supporting documentation. Develop and maintain both front end interfaces and back end services, APIs, and data layers. Write and execute unit and integration tests; troubleshoot and resolve defects.

Collaborate with system engineers, testers, and security personnel to deliver secure, maintainable code
Support system analysis, system design, and software design activities across the development lifecycle Required Qualifications
Active TS/SCI clearance with adjudicated CI Polygraph — must be in place prior to start date
DoD 8570/8140 IAT Level II (or higher) certification required: Security+, SSCP, CISSP, or CASP
Experience with and/or knowledge of one or more object-oriented programming languages: C#, Java, or C++
[Bachelor's degree in Computer Science, Software Engineering, or a related technical discipline — or equivalent experience]
Ability to work effectively on a collaborative, fast-paced development team
U.S.

Citizenship required

Desired Skills Experience or coursework in any of the following is valued: Proficiency in Windows, .NET, and UNIX environments
System software and scripting development
Java programming
Web development
System analysis and system design
Software design, development, and implementation
Software test
Cyber security

Preferred Qualifications
Experience with SQL and relational database design
Experience with React or comparable modern front end frameworks
Experience working under Agile / Scrum methodologies
Familiarity with CI/CD pipelines, Git, and containerization