Top Secret Security Clearance Jobs in Riverside, CA

Senior Scientist – 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 Scientist to support operations in Riverside, CA, with an opportunity to travel to locations such as CAMOC in Aguadilla, Puerto Rico, and other CONUS and OCONUS locations. This position is contingent on contract award, with an expected start date on September 1st, 2026. This is a full-time, CONUS/OCONUS position requiring an active DoD Secret clearance. 
The base salary range for this role is $119,071 to $189,895 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
As a Senior Scientist, you will play a critical role in designing, building, securing, and operating software solutions that support mission success and operational excellence across Federal Government organizations. Seeking a Senior Scientist to provide full-time support to the CBP Air and Marine Operations Center. This role is responsible for applying advanced scientific, analytical, and technical expertise to support C4I systems, ISR capabilities, and data-driven mission operations, including development of innovative approaches to enhance system performance, predictive analysis, and operational effectiveness.
You will:

• Bullet out or write in paragraph form Apply scientific and analytical methods to evaluate C4I, ISR, and operational data environments
• Develop models, simulations, and analytical frameworks to support mission decision-making
• Support data analysis efforts related to sensor inputs, surveillance systems, and operational intelligence
• Conduct research and analysis to improve system performance, predictive capabilities, and mission outcomes
• Provide technical expertise in evaluating emerging technologies and their applicability to mission needs
• Support development of data-driven solutions for threat detection, situational awareness, and operational planning
• Collaborate with engineering and operations teams to integrate analytical solutions into operational systems
• Analyze system performance data and recommend improvements to enhance reliability and effectiveness
• Support testing, validation, and evaluation of new analytical tools and capabilities
• Provide technical reports, briefings, and recommendations to Government stakeholders
• Ensure compliance with security, data handling, and operational requirements

• Education & Experience:
  • Bachelor’s degree in Engineering, Computer Science, Information Technology, or related field
  • 10 years of hands-on experience
• Technical Expertise:
  • Applying scientific or analytical methods to complex technical or operational problems
  • Supporting ISR systems, data analysis, and C4I environments
  • Developing models, simulations, and analytical tools
  • Analyzing large datasets and generating actionable insights
  • Supporting mission-critical operations in high-tempo environments
  • Working within DoD, DHS, or similar Federal operational environments
• Certifications:

• Must have a current and active DoD Secret security clearance.
• Proficient with modern IT tools and infrastructure technologies
• Microsoft Office Suite (Word, Excel, PowerPoint, Outlook)
• Data analysis and modeling tools (general familiarity)
• Programming or scripting languages (Python, R, or similar)
• Data visualization and analytics platforms
• Collaboration tools such as Teams and SharePoint

• Travel, both CONUS and OCONUS by motor vehicle and/or air travel may be required; some overnight stays possible.
  • OCONUS locations include:
    • Aguadilla and Puerto Rico
• Must have an active passport to support OCONUS travel and/or living requirements.

• Compliance with vaccination and medical requirements for TDY/OCONUS roles as per Vaccine Recommendations by AOR | Health.mil.
• This position requires working in a stressful environment, dealing with conflict, working under pressure and with strict deadlines, focus and attention to detail

• 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 is contingent upon successful background investigation
• Alcohol and Drug screening may be required for federal contract compliance

• Medical, dental, vision, life, accident, and critical illness insurance
• 401(k) immediate vesting and match
• Paid time off and company holidays
• Generous tuition & training support
• 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. Learn more at www.cbridgeinc.com.
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 recruiting@cbridgeinc.com.

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