Senior Systems Engineer – Secret Clearance | Riverside, CA

Cambridge International Systems Inc; California (MO); On-site; USD 92,000 - 150,000; Full time

Benefits offered by this job

Relocation assistance

Sign-on bonus

Performance-based bonuses

Job summary

Cambridge International Systems, Inc. in Riverside, CA is seeking a Senior Systems Engineer to support C4I capabilities. The role requires a DoD Secret clearance and involves system analysis, integration, and performance improvements on complex defense platforms.

Responsibilities include system upgrades, validation, and collaborating with engineering and operations teams to ensure secure, reliable deployments. Travel may be required for CONUS/OCONUS assignments.

Qualifications

• Bachelor’s degree in Engineering, Computer Science, Information Technology, or related field; experience may substitute for 10 years.
• Active DoD Secret security clearance is required.

Responsibilities

• Evaluate C4I communications capabilities and system performance.
• Assess C4I infrastructure capacity to support mission requirements.
• Analyze integration of radar, sensor inputs, and IP-based systems.
• Support system upgrades, enhancements, and tech refresh initiatives.
• Troubleshoot complex system issues across AMOSS, ISR, and telecom environments.
• Provide recommendations to improve reliability, scalability, and performance.

Skills

IT infrastructure

MS Project

Teams

SharePoint

Education

Bachelor's degree in Engineering, CS, IT or related field

Tools

MS Project

Teams

SharePoint

Job description

Senior Systems Engineer – Secret Clearance | Riverside, CA

Cambridge International Systems, Inc.

Join a dynamic global team united by shared values: commitment, integrity, and perseverance. At Cambridge, you’ll work alongside top talent worldwide, tackling some of today’s most complex and critical challenges in defense and security.

We are currently seeking a Senior Systems Engineer to support operations in Riverside, CA. This position is contingent on contract award, with an expected start date in July 2026. This is a full-time CONUS/OCONUS position requiring an active DoD Secret clearance.

This position may be subject to the Service Contract Labor Standards Act (SCLS)/Service Contract Act (SCA).

The base salary range for this role is $92K – $150K annually, depending on geographic location and experience. The final offer will be based on relevant experience, skills, internal equity, and market data.

What You’ll Do

• Evaluate and analyze C4I communications capabilities, including system performance, interoperability, and operational effectiveness.
• Assess C4I infrastructure capacity and identify improvements to support mission requirements.
• Analyze integration of radar, sensor inputs, and IP-based communications systems.
• Support engineering efforts related to system upgrades, enhancements, and technology refresh initiatives.
• Troubleshoot complex system issues across AMOSS, ISR, and telecommunications environments.
• Provide technical recommendations to improve system reliability, scalability, and performance.
• Support configuration management and system baseline control processes.
• Collaborate with engineering, operations, and maintenance teams to ensure seamless system integration.
• Support installation, testing, and validation of new systems and enhancements.
• Participate in technical reviews, engineering assessments, and mission planning activities.
• Ensure compliance with security requirements, operational procedures, and system standards.

Required Qualifications

Education & Experience:

• Bachelor’s degree in Engineering, Computer Science, Information Technology, or related field; experience may substitute for 10 years of relevant experience.

Technical Expertise

• Project management tools such as MS Project or equivalent.
• Collaboration tools such as Teams and SharePoint.
• Proficient with modern IT tools and infrastructure technologies.

Certifications

• Must have a current and active DoD Secret security clearance.

Travel & Passport

Both CONUS and OCONUS travel by motor vehicle and/or air may be required; some overnight stays possible.

OCONUS locations include: Aguadilla, Puerto Rico.

Must have an active passport to support OCONUS travel and/or living requirements.

Office Setting

Primarily an office-based role in Riverside, CA. Standard desk/computer work with flexibility for walking and movement on site. Must be able to work in an office environment, sitting at a desk, looking at a computer for most of the workday. Work is physically comfortable; the employee has discretion about sitting, walking, standing, etc. May be required to travel short distances to offices/conference rooms and buildings on site.

Employment Conditions

Employment is contingent upon successful background investigation. Alcohol and drug screening may be required for federal contract compliance.

Benefits

• Medical, dental, vision, life, accident, and critical illness insurance.
• 401(k) immediate vesting and match.
• Paid time off and company holidays.
• Relocation assistance.
• Sign-on and performance-based bonuses.
• Employee referral program.
• Access to tickets at work, EAP, wellness initiatives, and more.

Join Us

If you're driven by mission, technology, and teamwork, we want to hear from you. Cambridge is growing, and this position is just one of many opportunities on our global team. Know someone perfect for the role? Referrals are welcome—both employees and non-employees may qualify for a bonus.

Apply today and help shape the future of secure cloud computing for national security.

About Cambridge International Systems

At Cambridge, we recognize innovation and agility grow through teamwork. By working collaboratively, listening proactively, and engaging across functions we create solutions that build on the best ideas our employees bring to the table. We are committed to one another, to persevere in order to get the job done, and to do so with integrity every time.

Equal Opportunity Employer

We are an equal‑opportunity employer. Applicants and employees are considered for positions and are evaluated without regard to any protected status under applicable law or other similar factors that are not job‑related. We encourage all qualified individuals to apply for employment. Selected applicants may be subject to a background investigation and/or education verification.

We provide reasonable accommodation for qualified individuals with disabilities in accordance with federal, state, and local law. If you require a reasonable accommodation to participate in the application process or to perform the essential functions of the position, please contact our Recruiting Team at [e-mail].

Due to the nature of this position, U.S. Citizenship is required.