Principal Software Engineer- TS/SCI w/Poly
GDIT· Defense IT· Aug 26, 2026 · 2mo agoPosted 62 days ago
Annapolis Junction, MD
In office
Full-time
Principal
$213K–$288K
15+ years exp
Before you apply
Ghost Signal:
Open 62 days.
Job description
Type of Requisition:
Regular
Clearance Level Must Currently Possess:
Top Secret SCI + Polygraph
Clearance Level Must Be Able to Obtain:
Top Secret SCI + Polygraph
Public Trust/Other Required:
None
Job Family:
Software Engineering
Job Qualifications:
Skills:
C/C++, Docker (Software), Java Web Development, Python Software Development, Software Design Certifications:
None Experience:
15 + years of related experience US Citizenship Required:
Yes
Job Description:
SOFTWARE ENGINEER
Transform technology into opportunity as a Software Engineer at GDIT. Shape what’s next for mission-critical government projects while shaping what’s next for your engineering career.
MEANINGFUL WORK AND PERSONAL IMPACT
As a Software Engineer, the work you’ll do at GDIT will be impactful to the mission. The Software Engineer develops, maintains, and enhances complex and diverse software systems (e.g., processing-intensive analytics, novel algorithm development, manipulation of extremely large data sets, real-time systems, and business management information systems) based upon documented requirements. Works individually or as part of a team.
Reviews and tests software components for adherence to the design requirements and documents test results.
Resolves software problem reports.
Utilizes software development and software design methodologies appropriate to the development environment.
Provides specific input to the software components of system design to include hardware/software tradeoffs, software reuse, use of Commercial Off-the-shelf (COTS)/Government Off the-shelf (GOTS) in place of new development, and requirements analysis and synthesis from system level to individual software components.
WHAT YOU’LL NEED TO SUCCEED
Bring your engineering expertise along with a drive for innovation to GDIT. The Software Engineer must have:
● Education: Bachelor of Arts/Bachelor of Science
● Experience: 15 years of related experience
● Security clearance level: TS/SCI w/Poly required
● US citizenship required
● Role requirements:
Analyze user requirements to derive software design and performance requirements
Debug existing software and correct defects
Provide recommendations for improving documentation and software development process standards
Design and code new software or modify existing software to add new features
Integrate existing software into new or modified systems or operating environments
Write or review software and system documentation
Serve as team lead at the level appropriate to the software development process being used on any particular project
Design or implement complex database or data repository interfaces/queries
Develop or implement algorithms to meet or exceed system performance and functional standards
Assist with developing and executing test procedures for software components
Develop software solutions by analyzing system performance standards, confer with users or system engineers; analyze systems flow, data usage and work processes; and investigate problem areas
Modify existing software to correct errors, to adapt to new hardware, or to improve its performance
Design, develop and modify software systems, using scientific analysis and mathematical models to predict and measure outcome and consequences of design.
Additional contract or position specific required experience for this level (skills, technologies, expertise): Build applications using specified programming language per the development requirements.
Development for Windows or UNIX applications using scripting languages (e.g., C, C , C#, Java, and Python).
Dev Ops- Build and deploy technologies (e.g., Artifactory, Docker, Terraform, Ansible, Packer) Cl/CD- Experience with Cl/CD tools (e.g., Jenkins and Bamboo), and building automated Cl/CD pipelines
GDIT IS YOUR PLACE
At GDIT, the mission is our purpose, and our people are at the center of everything we do.
● Growth: AI-powered career tool that identifies career steps and learning opportunities
● Support: An internal mobility team focused on helping you achieve your career goals
● Rewards: Comprehensive benefits and wellness packages, 401K with company match, and competitive pay and paid time off
● Community: Award-winning culture of innovation and a military-friendly workplace
OWN YOUR OPPORTUNITY
Explore a career in software development at GDIT and you’ll find endless opportunities to grow alongside colleagues who share your dedication to advancing innovation.
#MD_2026Alumni
#IntelligenceEngineered
The likely salary range for this position is $212,500 - $287,500. 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 MD Annapolis Junction
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.
Our Identity Verification Process:
As part of the hiring process, we will ask you to complete an identity verification process that leverages advanced biometrics and artificial intelligence to ensure authenticity and protect against identity fraud. You are expected to be on camera during virtual interviews. We reserve the right to take your picture to verify your identity and prevent fraud. By proceeding, you authorize the collection, processing, and use of your biometric data for identity verification and security purposes.
About Our Work:
We are GDIT. A global technology and professional services company that delivers technology solutions and mission services to every major agency across the U.S. government, defense and intelligence community. Our 26,000 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 mission-ready capabilities in AI, cloud, cyber and software development.
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
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Benefits
Benefits detected in the listing.
Dental
Vision
401k
401(K)
Paid Time Off
Wellness