Cybersecurity Engineer II

Lyntris is hiring a Cybersecurity Engineer II to support planning, execution, and communication of cybersecurity and National Security assessments, along with the engineering work needed to deliver network defense capabilities in complex DoD environments. This onsite role in San Diego, CA brings together assessment, integration, testing, and deployment responsibilities across enterprise and operational security tooling.

The ideal candidate will help design and field cybersecurity solutions, configure and troubleshoot SIEM and detection technologies, and perform network and security analysis using established tools and methodologies. Work will also include coordination with government, vendors, engineering teams, and international stakeholders to resolve technical issues and align on recommendations.

Role summary

In this position, you will plan, execute, and present National Security and Cybersecurity assessments and technical recommendations. You will also design, engineer, integrate, test, and deploy cybersecurity and network defense solutions across complex DoD environments, including activities supporting the acquisition, integration, testing, deployment, and sustainment lifecycle. Support may extend to Foreign Military Sales (FMS) programs and international customer engagements as required.

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.
• Use 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 reach consensus.
• Develop technical documentation, test procedures, assessment reports, briefings, and customer presentations.
• Support cybersecurity activities across 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.

Technologies

• Splunk Enterprise, Splunk Enterprise Security, SIEM
• IDS/IPS, firewalls, network monitoring solutions
• Wireshark, Tenable, network taps
• Windows, Linux/Unix
• APIs, generative AI, agentic coding
• Palo Alto, Cisco Firepower, Trellix NX
• Tenable Nessus, Tenable.sc
• Python, PowerShell, Bash, REST APIs

Pay & benefits

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

• 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

Clearance requirements

• 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).
• 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 employment.