Security System Engineer Jobs in California (NOW HIRING)

Lyntrisis a defense technology company that connects sensing to action across the connected battlespace.Lyntrisbrings together the talents ofAccelintand Vitesse teams under one mission, with each contributing deepexpertisewithin their domain.Combining differentiated hardware,softwareand missionexpertise,Lyntrishelps customers sense threats,make sense of complex conditions and act with greater speed,precisionand confidence in contested environments.

Lyntris supports U.S. and allied defense organizations across every branch — including Navy, Army, Air Force, SpaceForceand allied partners — spanning strategic,operationaland tactical missions and every domain: Space, Air, Land, Sea and Cyber. With more than 200 active defense programs,Lyntrisworks at every level of the mission, from national command authority to the tactical edge.

Solutions are designed by operators who understand the mission, engineered for the conditions that degrade or defeat standard systems, and built on an open, modular architecture that integrates into existing programs without requiring them to start over.Lyntrismoves faster than the traditional defense cycle — with integrated design, build and test capabilities in-house — and delivers systems that sustain and endure long after initial fielding.

We are seeking a Senior Systems Engineer to support systems and system-of-systems engineering efforts across complex technical environments. This role will be responsible for architecture design, integration, testing, implementation, certification activities, and technical analysis in support of mission and business objectives.

The ideal candidate is analytical, detail-oriented, and capable of working both independently and collaboratively in a fast-paced environment. This position requires strong problem-solving abilities, technical documentation experience, and the ability to interpret data and translate findings into actionable recommendations.

Full time

Remote / Hybrid

This position requires active U.S. national security clearance and the ability to obtain one. To learn more about the security clearance process please access this link.

• Conduct systems and system-of-systems architecture design, integration, implementation, testing, review, and certification activities.
• Perform technical requirements definition and allocation across multiple systems and stakeholders.
• Conduct data analysis, interpret findings, and summarize results to support operational and technical decision-making.
• Develop and maintain technical documentation, including test plans, procedures, reports, and supporting materials.
• Analyze data from multiple disparate sources to identify trends, draw conclusions, and address business or operational challenges.
• Support cross-functional teams in the execution of engineering and technical initiatives.
• Apply analytical and critical thinking skills to solve complex technical problems.
• Support administration, configuration, and troubleshooting activities across multiple operating systems and virtualized environments.
• Perform all functional duties independently with minimal oversight while contributing effectively within a team environment.

• Currently holds an active U.S. national security clearance or be able to receive and maintain one. To learn more about the security clearance process please access this link.
• Minimum of 10 years of relevant systems engineering or technical integration experience.
• Strong analytical, critical thinking, and data analysis skills.
• Excellent verbal and written communication skills.
• Proficiency with Microsoft Office applications including Word, Excel, PowerPoint, and Outlook.
• Ability to quickly learn and apply technical concepts to assigned responsibilities.
• Experience working with and analyzing data from multiple sources to support business or technical objectives.
• Ability to work independently as well as collaboratively within a team environment.

• Bachelor’s degree in Engineering, Computer Science, Information Systems, Information Technology, Operations Research, Mathematics, Physics, Business Administration, or a related field.
• Experience as a systems administrator supporting various operating systems.
• Experience with VMware and virtualized environments.
• Experience handling or supporting COMSEC-related processes and equipment.
• Experience supporting systems engineering, integration, testing, or certification activities in complex technical environments.
• Experience supporting government, defense, or large-scale enterprise programs is a plus.

Time Critical Object Manager (TCOM)Water Space Management (WSM)Interoperable C4I Services (ICS)Human Machine Interface (HMI)Multiple Link Interface Unit (MLIU)InformixJoint Network Design Aid (JNDA)GPS technologies and integrationSecure-Wide Area Network (S-WAN)

Some positions will require access to U.S. National Security information. Positions that require this access will be required to receive and maintain a U.S. government personnel security clearance (PCL). In order to qualify for this position, the candidate must be a US Citizen and either currently possess this National Security eligibility or be able to complete the investigation application process with a favorable determination and maintain that eligibility throughout their employment. To learn more about the security clearance process please access this link.

Lyntriscompanies are Equal Opportunity Employers. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, age, disability, status as a protected veteran or any other status protected by applicable federal, state, and local law. We ensure that all employment decisions, including hiring, promotion, compensation, and other terms and conditions of employment, are based on merit, qualifications, and business needs. For more information about your rights, please review the "Know Your Rights" poster from the Equal Employment Opportunity Commission (EEOC). Know your Rights:EnglishSpanish

The listed pay scale reflects the broad, minimum to maximum, pay scale for this position for the location for which it has been posted and is not a guarantee of compensation or salary. Other compensation considerations may include, but are not limited to, job responsibilities, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, or other applicable factors.

Benefits include…

• Paid Time Off
• Paid Company Holidays
• Medical, Dental & Vision Insurance
• Optional HSA and FSA
• Base and Voluntary Life Insurance
• Short Term & Long-Term Disability Insurance
• 401k Matching
• Employee Assistance Program

The pay range for this role is: 140,000 - 177,442 USD per year (San Diego, CA (FSI))