Senior Software Engineer - Secret Clearance Preferred – Onsite

Company: GD Information Technology
Location: Oakton
Posted on: April 2, 2026

Job Description:

Type of Requisition: Regular Clearance Level Must Currently Possess: None Clearance Level Must Be Able to Obtain: Secret Public Trust/Other Required: None Job Family: Software Engineering Job Qualifications: Skills: Application Development, Software Development, Software Development Life Cycle (SDLC) Certifications: None Experience: 5 years of related experience US Citizenship Required: Yes Job Description: GDIT is seeking a Senior Software Engineer to join our team. This challenging and interesting software engineering/development position is a chance to participate in the development and operation of a high-performance big data system, and join a longstanding, stable program consisting of a team of individuals using defined Agile software principles and practices. As a Senior Software Engineer, you’ll perform software requirements analysis, participate in research, design, development, testing, and maintenance of an operational big data system. Deliver simple solutions to complex problems as a Senior Software Engineer at GDIT. Here, you’ll tailor cutting-edge solutions to the unique requirements of our clients. With a career in application development, you’ll make the end user’s experience your priority and we’ll make your career growth ours. US Citizenship is required. Active Secret clearance is preferred. If candidate does not have an active clearance, GDIT will sponsor the clearance upon contingent offer. The work must be performed onsite (no remote work). WHAT YOU’LL NEED TO SUCCEED: • Demonstrated understanding of software engineering concepts, principles, and applications Experience with database technologies, and an understanding of SQL, ETL, indexing, and performance In-depth understanding of object-oriented and functional programming, design patterns, data structures, and algorithms • Education: Bachelor’s degree in software engineering or a related technical field. • Required Experience: 5 years of related experience Preferred Skills: • Modern C++ versions (C++11/14/17/20) in a Linux development environment • Scripting languages such Python, Ruby, bash • Very large databases/big data/data warehousing • NoSQL database technologies such as MongoDB • Multi-threaded and multi-process applications What sets you apart: Ability to interact and collaborate effectively with project teams, managers, and end users Commitment to ongoing professional development Solid ability to grasp and apply new information quickly and handle increasing responsibilities with growing complexity Creative and innovative thinking with the ability to multi-task CLEARANCE REQUIREMENTS: Department of War Secret security clearance is required before starting on program. Applicants selected will be subject to a government background investigation and must meet eligibility and suitability requirements. Due to the nature of work performed within our facilities, U.S. citizenship is required. GDIT IS YOUR PLACE: 401K with company match Comprehensive health and wellness packages Internal mobility team dedicated to helping you own your career Professional growth opportunities including paid education and certifications Cutting-edge technology you can learn from Rest and recharge with paid vacation and holidays The likely salary range for this position is $119,000 - $161,000. This is not, however, a guarantee of compensation or salary. Rather, salary will be set based on experience, geographic location and possibly contractual requirements and could fall outside of this range. Scheduled Weekly Hours: 40 Travel Required: None T elecommuting Options: Onsite Work Location: USA VA Oakton Additional Work Locations: Total Rewards at GDIT: Our benefits package for all US-based employees includes a variety of medical plan options, some with Health Savings Accounts, dental plan options, a vision plan, and a 401(k) plan offering the ability to contribute both pre and post-tax dollars up to the IRS annual limits and receive a company match. To encourage work/life balance, GDIT offers employees full flex work weeks where possible and a variety of paid time off plans, including vacation, sick and personal time, holidays, paid parental, military, bereavement and jury duty leave. To ensure our employees are able to protect their income, other offerings such as short and long-term disability benefits, life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance are provided or available. We regularly review our Total Rewards package to ensure our offerings are competitive and reflect what our employees have told us they value most. We are GDIT. A global technology and professional services company that delivers consulting, technology and mission services to every major agency across the U.S. government, defense and intelligence community. Our 30,000 experts extract the power of technology to create immediate value and deliver solutions at the edge of innovation. We operate across 50 countries worldwide, offering leading capabilities in digital modernization, AI/ML, Cloud, Cyber and application development. Together with our clients, we strive to create a safer, smarter world by harnessing the power of deep expertise and advanced technology. Join our Talent Community to stay up to date on our career opportunities and events at gdit.com/tc . Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans

Keywords: GD Information Technology, Arlington , Senior Software Engineer - Secret Clearance Preferred – Onsite, IT / Software / Systems , Oakton, Virginia