Senior Principal Software Developer
CACI International· Defense· Sep 23, 2026 · 1mo ago
Sunset Hills, MO, US
In office
Full-time
Principal
$105K–$231K
Job description
Job Title: Senior Principal Software Developer
Job Category: Information Technology
Time Type: Full time
Minimum Clearance Required to Start: Top Secret
Employee Type: Regular
Percentage of Travel Required: None
Type of Travel: Local
* * *
The Opportunity:
CACI is seeking a experienced Senior Principal Software Developer to support a mission-critical program for the National Geospatial-Intelligence Agency (NGA). In this role, you will utilize well-defined software processes, such as Agile, to work as part of a development team in a rapid development environment. You will design, code, and unit test front-end and back-end solutions for integrated systems, develop integration code to connect systems and services, and build solutions that promote interoperability through open standards and service-based architectures. This position offers the opportunity to directly support national security missions in a fast-paced environment.
Responsibilities:
· Utilize well-defined software processes, such as Agile, to work as part of a development team in a rapid development environment
· Design, code, and unit test front-end and back-end solutions for integrated systems using languages and packages such as HTML, CSS, C , C#, Java, and JavaScript
· Develop integration code to connect and interface systems and services
· Develop solutions that utilize open standards and Interface Control Documents (ICDs) to promote interoperability through service-based architectures
· Support the development and configuration of database systems
· Analyze, fix, and document Discrepancy Reports (DRs) on systems
· Participate in code reviews, sprint planning, and other Agile ceremonies to support team delivery goals
· Coordinate with program stakeholders to ensure development work aligns with business and technical requirements
Qualifications:
Required:
· Active Top Secret clearance with the ability to obtain/maintain SCI and polygraph
· Bachelor s degree in any field/major, or 7 additional years of relevant information technology experience in lieu of degree
· Experience using languages and packages such as HTML, CSS, C , C#, Java, and JavaScript
· Experience designing, coding, and unit testing front-end and back-end solutions for integrated systems
Desired:
· Technical certification such as Network , Security , Oracle, or a certification specializing in software development or cloud computing
· Certified AWS Solutions Architect (Associate or higher) or equivalent AWS certification
· Experience with Momentum Financials (Unison/CGI) systems
· Experience supporting NGA or other NGA/IC customer environments specifically
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What You Can Expect:
A culture of integrity.
At CACI, we place character and innovation at the center of everything we do. As a valued team member, you’ll be part of a high-performing group dedicated to our customer’s missions and driven by a higher purpose – to ensure the safety of our nation.
An environment of trust.
CACI values the unique contributions that every employee brings to our company and our customers - every day. You’ll have the autonomy to take the time you need through a unique flexible time off benefit and have access to robust learning resources to make your ambitions a reality.
A focus on continuous growth.
Together, we will advance our nation s most critical missions, build on our lengthy track record of business success, and find opportunities to break new ground — in your career and in our legacy.
Pay Range :
There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Our employees value the flexibility at CACI that allows them to balance quality work and their personal lives. We offer competitive compensation, benefits and learning and development opportunities. Our broad and competitive mix of benefits options is designed to support and protect employees and their families. At CACI, you will receive comprehensive benefits such as; healthcare, wellness, financial, retirement, family support, continuing education, and time off benefits.
The proposed salary range for this position is:
$105,100-$231,100
CACI is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, pregnancy, sexual orientation, age, national origin, disability, status as a protected veteran, or any other protected characteristic.
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