Senior Principal Software Developer
Company websitecaci.com (CACI, opens in new tab)
Base salary $105,100 to $231,100
Employer-published annual base salary, USD. Advertised base range in Sunset Hills, MO
You apply on the employer's own site. Six Figure Work does not handle applications.
- LocationSunset Hills, MO
- WorkplaceOn-site
- Status at last checkSource accepting applications when checked
- Last checked (48 min ago) · observed since
About this job
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
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-$231,100CACI 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.
Source: CACI on Workday · View original posting (opens in new tab)
Pay in context
This role's base floor ($105,100) is above 4% of the 50 Software Engineering roles in Missouri listed on this site. Their median floor is $142,800; the middle half runs from $128,738 to $165,538.
Only jobs on this site count, and each one publishes a base salary of $100,000 or more, so this compares six-figure jobs with each other, not with the whole market. Computed Nov 6, 2026.
This listingSenior Principal Software Developer$105,100 to $231,100
SAP Functional Consultant – Procure to Pay (PTP) / Materials Management (MM)$105,100 to $231,100
Exploitation Analyst (EA)$105,100 to $231,100
Cloud Infrastructure Systems Administrator- LINUX Admin$105,100 to $231,100
Oracle Fusion Cloud HCM Functional (SME)$105,100 to $231,100
Momentum Financials Technical Subject Matter Expert$105,100 to $231,100
HCM Cloud Environments Lead$105,100 to $231,100
Chart as a table
| Role | Published base |
|---|---|
| Senior Principal Software Developer (this listing) | $105,100 - $231,100 |
| SAP Functional Consultant – Procure to Pay (PTP) / Materials Management (MM) | $105,100 - $231,100 |
| Exploitation Analyst (EA) | $105,100 - $231,100 |
| Cloud Infrastructure Systems Administrator- LINUX Admin | $105,100 - $231,100 |
| Oracle Fusion Cloud HCM Functional (SME) | $105,100 - $231,100 |
| Momentum Financials Technical Subject Matter Expert | $105,100 - $231,100 |
| HCM Cloud Environments Lead | $105,100 - $231,100 |
Observed changes
- First observed on the employer's board
- Began meeting the published-salary criteria
- Observed since
- Employer-stated posting date
- 2026-09-23
Where this pay comes from
Location as the employer wrote it: Sunset Hills, MO, US
$105,100-$231,100
- Method
- Employer text, read with fixed rules and re-verified
- Checked
- Rule set
- us-base-v2
The pay passage appears in the employer's own job text. Fixed, deterministic rules located it, and the passage below was checked against the stored copy of the posting.
What we verified
- The pay figures come from the employer's own listing, quoted exactly above.
- The pay is an annual base salary in US dollars with a minimum of at least $100,000.
- The role was publicly listed on the employer's job board when last checked.
We do not verify what the employer will actually offer, whether the employer is still recruiting for the role, or anything beyond what the employer published. Full methodology.