System Integration Engineer Sterling, VA, US + 1 more

CACI International Inc.; Sterling (VA); On-site; USD 82,100 - 172,400; Full time

Job summary

CACI International Inc. seeks a System Integration Engineer in Sterling, VA to solve complex technical challenges and integrate systems across mission environments. The role emphasizes scalable, maintainable software-enabled solutions and cross-team collaboration.

A current TS/SCI clearance is required, with CI Polygraph preferred. The candidate will document architectures, guide automation opportunities, and work with engineering, operations, and leadership to sustain critical systems.

Qualifications

• Active TS/SCI clearance required or ability to obtain one.
• CI Polygraph preferred; candidates eligible to obtain one encouraged to apply.
• 5+ years of experience in systems engineering, software engineering, systems integration, or related.
• Experience integrating software applications, enterprise systems, APIs, databases, and distributed technologies.
• Strong technical writing skills and ability to produce architecture docs, interface control documents, and system diagrams.

Responsibilities

• Solve complex technical and operational problems with a systems-thinking approach.
• Understand how disparate systems, people, and processes work together to achieve mission success.
• Develop practical, scalable, and maintainable technical solutions.
• Communicate effectively across engineering, operations, and leadership teams.
• Produce high-quality technical documentation enabling long-term system sustainment.
• Identify opportunities for automation, integration, and continuous improvement.

Skills

Active TS/SCI clearance

CI Polygraph preferred

5+ years systems engineering

Software integration

Documentation skills

Education

Bachelor's degree in a technical field

Tools

REST APIs

Job description

## System Integration EngineerSterling, VA, USApply NowFind out how well you match with this jobJob ID328933Job Title: System Integration EngineerJob Category: EngineeringTime Type: Full timeMinimum Clearance Required to Start: TS/SCIEmployee Type: RegularPercentage of Travel Required: Up to 10%Type of Travel: LocalAnticipated Posting End: 7/10/2027**The Opportunity:** We are seeking a highly motivated Systems Engineer who excels at solving complex problems, integrating systems, and designing intelligent software-enabled solutions that improve mission outcomes. This role requires someone who can think strategically while executing tactically—translating evolving operational needs into scalable, maintainable technical solutions.The ideal candidate is comfortable working in dynamic mission environments, enjoys collaborating across technical and operational teams, and understands how individual efforts contribute to broader organizational objectives. This position supports sensitive national security programs and requires a current TS/SCI security clearance. Candidates with an active CI Polygraph are strongly preferred; however, qualified candidates who are eligible and willing to obtain a CI Polygraph are encouraged to apply. **Responsibilities:*** Solves complex technical challenges with a systems-thinking mindset* Understands how disparate systems, people, and processes work together to achieve mission success* Develops practical, scalable, and maintainable technical solutions* Communicates effectively across engineering, operations, and leadership teams* Produces high-quality technical documentation that enables long-term system sustainment* Identifies opportunities for automation, integration, and continuous improvement* Remains effective in environments with evolving priorities while keeping strategic objectives at the forefront* Operates with professionalism, sound judgment, and a strong commitment to protecting sensitive national security information**Qualifications:** *Required:** Active TS/SCI security clearance with active CI Polygraph or the ability and willingness to obtain a CI Polygraph* Bachelor's degree in a technical field (or equivalent experience)* Available to work in-person in an office environment at CACI facilities in Sterling, VA or Denver, CO* 5+ years of experience in systems engineering, software engineering, systems integration, solution architecture, or related technical disciplines* 3+ years of experience with mission management applications or enterprise data integration* Demonstrated ability to solve complex technical and operational problems* Experience integrating software applications, enterprise systems, APIs, databases, and distributed technologies* Experience with system testing and familiarity with automated application testing frameworks* Strong understanding of systems engineering principles and the system development lifecycle* Experience designing or implementing automation that improves operational efficiency and reduces manual effort* Strong technical writing skills with experience producing architecture documentation, interface control documents, system diagrams, procedures, and engineering artifacts* Excellent communication and collaboration skills with both technical and non-technical stakeholders* Ability to rapidly adapt to changing priorities while maintaining alignment with strategic mission objectives* Demonstrated ability to independently prioritize work, manage multiple efforts, and deliver high-quality solutions in dynamic environments* Experience with Agile development methodologies and the Atlassian Suite tools (Jira, Confluence)*Desired:** Experience supporting Intelligence Community (IC) or Department of War (DoW) organizations* Familiarity with cloud platforms such as AWS* Familiarity with PowerShell, JavaScript, Java, or similar programming and scripting languages* Familiarity with REST APIs, microservices, message queues, and distributed system architectures* Knowledge of Model-Based Systems Engineering (MBSE), enterprise architecture, or digital engineering practices* Familiarity with AI-enabled decision support, advanced analytics, or data engineering solutions* Security+ or other relevant technical certifications are a plus-**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:$82,100-$172,400*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.*