Cybersecurity Engineer II

Accelint Holdings LLC; San Diego (CA); On-site; USD 110,000 - 130,000; Full time

Benefits offered by this job

Paid Time Off

Medical, Dental & Vision Insurance

401k Matching

HSA and FSA options

Job summary

Accelint Holdings LLC seeks a Cybersecurity Engineer I in San Diego, onsite. The role focuses on planning security assessments, designing DoD cybersecurity solutions, and integrating tools across Windows, Linux, and networks.

Ideal candidates hold an active U.S. clearance or can obtain one, with 5–7+ years in cybersecurity, and hands-on Splunk ES experience. Travel to CONUS/OCONUS may be required.

Qualifications

• Active U.S. security clearance or ability to obtain one.
• 5–7+ years in cybersecurity, network defense, or NS experience.
• Bachelor's degree in a related technical field.
• Experience with enterprise cybersecurity tech and network defense architectures.
• Hands-on Splunk Enterprise & Splunk ES experience.
• Experience with IDS/IPS and firewall tech.
• Vulnerability assessment tools experience (Nessus/Tenable).
• Wireshark and traffic analysis experience.
• APIs, scripting, automation, or software development experience.

Responsibilities

• Plan and present National Security and Cybersecurity assessments and analyses.
• Design and deploy cybersecurity solutions in DoD environments.
• Configure and troubleshoot Splunk, SIEM, IDS/IPS, firewalls, and vuln tools.
• Support CND requirements, boundary defense, remediation, and risk management.
• Integrate cybersecurity across Windows, Linux, networks, and APIs.
• Conduct network analysis using Wireshark, Tenable, and Splunk.
• Leverage automation and AI to improve engineering and testing.
• Coordinate vendor integration and fielding activities.

Skills

Security assessment

Network defense

Windows/Linux

Scripting/Automation

Communication

Travel readiness

Education

Bachelor's degree in Computer Engineering, Electrical Engineering, CS, Cybersecurity, or related field

Tools

Splunk Enterprise

Splunk Enterprise Security

Tenable Nessus/Tenable.sc

Wireshark

IDS/IPS & firewalls

Python / PowerShell / Bash

Job description

About this position

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, Lyntris helps 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.

Job Description

Cybersecurity Engineer IIFull timeOnsite

*This position requires anactive U.S. national security clearance.To learn more about the security clearance process please access thislink.

Duties and 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.

Required Qualifications

• 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.
• 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.

Desired 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.

Clearance Requirements

Some positions willrequire access to U.S. National Security information. Positionsthat require this access will berequiredto receive andmaintaina U.S. government personnel security clearance (PCL). In order toqualify for this position, the candidate must be a US Citizen and either currentlypossessthis National Security eligibility or be able to complete the investigation application process with a favorable determination andmaintainthat eligibility throughout their employment. To learn more about the security clearance process please access thislink.

EEOC & Know Your Rights

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

Pay Scales & Benefits

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.

• 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: 110,000 - 130,000 USD per year(San Diego, CA (HDG))