Systems Integration & Test Engineer

Job Title: Systems Integration & Test Engineer Job Category: Engineering Time Type: Full time Minimum Clearance Required to Start: TS/SCI with Polygraph Employee Type: Regular Percentage of Travel Required: None Type of Travel: None Anticipated Posting End: 7/24/2026 The Opportunity: CACI is currently looking for an experienced, highly skilled, and driven Systems Integration & Test Engineer to perform verification and validation of multiple integrated software applications for a national customer in the Mission Management domain. You’ll join our SHIV integration test team located in Sterling, VA and the Denver Tech Center, CO. The ideal candidate will have broad experience in Full Lifecycle Systems Engineering and Integration (SE&I) of mission software applications and the ability to assess requirements and derive acceptance criteria. As a self-starter using that knowledge, you will design automated end-to-end (E2E) mission test strategies that satisfy real-world user stories. As a member of the SHIV team, you will learn and analyze several third-party software applications that deploy new features on an agile basis, and you will work closely with the SHIV team’s software developers to perform troubleshooting when implemented tests find software bugs, defects or changes. Join this passionate team of systems engineers and software developers as we help our customer transition from heavily manual testing practices to automated integration tests in a constantly changing agile environment. Responsibilities: Partner with the applications’ engineers to learn and understand their applications, interconnections, mission threads, functional requirements, and dependencies Trace legacy and new functional requirements to third-party apps in development Write testable and understandable acceptance criteria for the automated tests Track the completion dates for an application’s internal and external dependencies Develop E2E autonomous systems testing strategies using real-world user scenarios and realistic, dynamic test data in an agile-based test environment Design scripts for automated tests that exercise UI-based and API-based functionality and satisfy the test’s acceptance criteria Collaborate with developers to implement test scripts for automation that verify functional requirements across multiple cloud-based applications Maintain and enhance existing tests to exercise newly deployed and/or updated software features developed by third-party agile programs Qualifications: Required: Active TS/SCI with polygraph (or willingness to obtain a polygraph) BA/BS in STEM field or related experience Expertise in the Mission Management domain and willing to learn more 7+ years of systems engineering experience with planning and scheduling software Understanding of federal government operational environments A self-starter and self-directed with a user-centric mindset when developing testing of processes across multiple software applications Experience in Full Lifecycle Systems Engineering and Integration and end-to-end multi-segment testing Ability to act as a bridge between software developers and project stakeholders. Ability to communicate effectively and collaboratively in a team environment The candidate must exhibit professionalism, flexibility, and tolerance to change Desired: Experience in agile software development, systems integration and verification skills Experience with crafting acceptance criteria for functional requirements Experience with JIRA and Confluence for task organization and tracking Familiarity with test automation frameworks, SQL for data verification, and API testing tools, coding experience can be helpful but is not required - 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. Since this position can be worked in more than one location, the range shown is the national average for the position. The proposed salary range for this position is: $98,500-$206,800 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. Click on Search Jobs to find and apply to CACI openings.