Cybersecurity Engineer II

About the role

Lyntris is a defense technology company that connects sensing to action across the connected battlespace. Combining differentiated hardware, software, and mission expertise, Lyntris helps customers sense threats, make sense of complex conditions, and act with greater speed, precision, and confidence in contested environments. Lyntris supports U.S. and allied defense organizations across every branch — including Navy, Army, Air Force, Space Force, and allied partners — spanning strategic, operational, and tactical missions in Space, Air, Land, Sea, and Cyber domains. With more than 200 active defense programs, Lyntris works at every level of the mission, from national command authority to the tactical edge.

This position requires an active U.S. national security clearance. The role is full-time and onsite.

Responsibilities

• Plan, execute, and present National Security and Cybersecurity assessments, analyses, studies, and technical recommendations.
• Design, engineer, integrate, test, and deploy cybersecurity and network defense solutions across complex DoD environments.
• Configure, integrate, and troubleshoot Splunk Enterprise, Splunk Enterprise Security, SIEM, IDS/IPS, firewalls, vulnerability management tools, and network monitoring solutions.
• Support DoD Computer Network Defense (CND) requirements, boundary defense, vulnerability mitigation, remediation, and risk management activities.
• Integrate cybersecurity solutions across Windows, Linux/Unix, network infrastructure, servers, security appliances, APIs, and third-party platforms.
• Conduct network and security analysis using tools such as Wireshark, Tenable, Splunk, and network taps.
• Leverage automation, scripting, APIs, generative AI, and agentic coding to improve cybersecurity engineering, analysis, testing, and troubleshooting.
• Coordinate and support vendor integration, testing, demonstrations, and fielding activities, including CONUS and OCONUS events.
• Collaborate with government, vendors, engineering teams, and international stakeholders to resolve technical issues and achieve consensus.
• Develop technical documentation, test procedures, assessment reports, briefings, and customer presentations.
• Support cybersecurity activities throughout the acquisition, integration, testing, deployment, and sustainment lifecycle.
• Support Foreign Military Sales (FMS) programs and international customer engagements as required.

Requirements

• Currently holds an active U.S. national security clearance or be able to receive and maintain one.
• 5–7+ years of relevant hands-on cybersecurity, network defense, systems engineering, or National Security experience.
• Bachelor's degree in Computer Engineering, Electrical Engineering, Computer Science, Cybersecurity, Network Engineering, or a related technical field.
• Demonstrated experience with enterprise cybersecurity technologies and network defense architectures.
• Hands-on experience with Splunk Enterprise and Splunk Enterprise Security.
• Experience with enterprise IDS/IPS and firewall technologies.
• Experience with vulnerability assessment and management tools such as Tenable Nessus/Tenable.sc.
• Experience with Wireshark and network traffic analysis.
• Experience integrating cybersecurity products across complex hardware/software environments.
• Experience with APIs, scripting, automation, or software development.
• Strong written, verbal, analytical, and presentation skills.
• Ability to travel CONUS and OCONUS as required.

Qualifications

• CASP+ or CISSP certification, including candidates actively pursuing either certification.
• Foreign Military Sales (FMS) program experience.
• DoD Computer Network Defense experience.
• Splunk Enterprise Security experience.
• Palo Alto, Cisco Firepower, or Trellix NX experience.
• Tenable Nessus/Tenable.sc experience.
• Python, PowerShell, Bash, or other automation/programming experience.
• Experience with REST APIs and cybersecurity tool integrations.
• Experience supporting complex DoD acquisition programs.
• Experience coordinating CONUS/OCONUS vendor integration and customer events.

Benefits

• 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

Pay

The pay range for this role is $110,000 - $130,000 USD per year (San Diego, CA).