Job Description

San Diego,CA,US
Remote Work:
Job Number:
Trellix ESS Endpoint Security Engineer, Senior

The Opportunity:

Everyone knows security needs to be “baked in” to a system architecture, but you actually know how to bake it in. You can identify and implement ways to harden systems and reduce their attack surface. What if you could use your cyber engineering skills to design and build secure systems for the Navy? We’re looking for an endpoint security engineer who can help create solutions for the Navy that will stand up to even the most advanced cyber threats.

As a cybersecurity engineer on our project, you’ll work in a lab environment to build, configure, administer, and maintain Trellix (formerly McAfee) Endpoint Security Solution (ESS) and Assured Compliance Assessment Solution (ACAS) in an engineering and development environment. Analyze and tune Endpoint Security Systems policies for assets during integration test events. Install, configure, and maintain ESS servers and dependent systems. Perform verification and troubleshooting across all ESS modules. Install, configure, and maintain the ACAS Security Center (SC) and ACAS scanners. Perform Tier IV troubleshooting, analysis policy, and perform ENS signature review for Application Providers (AP) and DoD Program of Records (PoR). Install, configure, and maintain multiple ESS servers and dependent systems. Analyze policies for ENS, Policy Auditor, DLPe, TACC, TA, and other Trellix products. You’ll be able to gain experience in security a broad range of Navy systems while building peace of mind in a critical infrastructure. Join our team as we improve the Navy’s afloat cybersecurity capabilities.

Empower change with us.

You Have:

-5+ years of experience with network or systems engineering or system administration

-2+ years of experience with endpoint security solutions

-Experience with ESS ePO server administration and maintenance

-Experience with standard ESS modules, including Trellix Agent (TA), Endpoint Security (ENS), Data Loss Prevention Endpoint(DLPe), Policy Auditor (PA), Rogue System Detection (RSD), and Trellix Application and Change Control (TACC)

-Experience with analyzing policies for ENS firewall, Solidcore application whitelisting, ENS exclusions, DLP exclusions

-Experience tuning policy exceptions for all standard ESS modules

-Secret clearance

-HS diploma or GED

-Ability to obtain an IAT level II certification within 30 days of hire

Nice If You Have:

-Experience with the previous HBSS HIPS product for signature review and verification of signature and exceptions

-Experience with ESS ENS signature review and verification of signature and exceptions

-Experience with ACAS SC and ACAS Nessus scanner administration and maintenance and troubleshooting ACAS SC to ACAS scanner synchronization

-Experience with system administration

-Knowledge of configuring primary operating systems, including Microsoft Windows, UNIX, or Linux

-Knowledge of Navy shipboard networks

-Knowledge of using and applying vulnerability assessment tools, including Nessus, Security Content Automation Protocol (SCAP), Secure Technical Implementation Guides (STIGs), checklists, and Security Requirements Guides (SRG)

-Bachelor's degree

-Completion of a DoD 201 HBSS Administrator Course or DoD 301 HBSS Advanced Administrator Course

-Completion of a DoD 501 HBSS Analyst Course


Applicants selected will be subject to a security investigation and may need to meet eligibility requirements for access to classified information; Secret clearance is required.

Create Your Career:

Grow With Us

Your growth matters to us—that’s why we offer a variety of ways for you to develop your career. With professional and leadership development opportunities like upskilling programs, tuition reimbursement, mentoring, and firm-sponsored networking, you can chart a unique and fulfilling career path on your own terms.

A Place Where You Belong

Diverse perspectives cultivate collective ingenuity. Booz Allen’s culture of respect, equity, and opportunity means that, here, you are free to bring your whole self to work. With an array of business resource groups and other opportunities for connection, you’ll build your community in no time.

Support Your Well-Being

Our comprehensive benefits package includes wellness programs with HSA contributions, paid holidays, paid parental leave, a generous 401(k) match, and more. With these benefits, plus the option for flexible schedules and remote and hybrid locations, we’ll support you as you pursue a balanced, fulfilling life—at work and at home.

Your Candidate Journey

At Booz Allen, we know our people are what propel us forward, and we value relationships most of all. Here, we’ve compiled a list of resources so you’ll know what to expect as we forge a connection with you during your journey as a candidate with us.


At Booz Allen, we celebrate your contributions, provide you with opportunities and choices, and support your total well-being. Our offerings include health, life, disability, financial, and retirement benefits, as well as paid leave, professional development, tuition assistance, work-life programs, and dependent care. Our recognition awards program acknowledges employees for exceptional performance and superior demonstration of our values. Full-time and part-time employees working at least 20 hours a week on a regular basis are eligible to participate in Booz Allen’s benefit programs. Individuals that do not meet the threshold are only eligible for select offerings, not inclusive of health benefits. We encourage you to learn more about our total benefits by visiting the Resource page on our Careers site and reviewing Our Employee Benefits page.

Salary at Booz Allen is determined by various factors, including but not limited to location, the individual’s particular combination of education, knowledge, skills, competencies, and experience, as well as contract-specific affordability and organizational requirements. The projected compensation range for this position is $73,100.00 to $166,000.00 (annualized USD). The estimate displayed represents the typical salary range for this position and is just one component of Booz Allen’s total compensation package for employees.

Work Model
Our people-first culture prioritizes the benefits of flexibility and collaboration, whether that happens in person or remotely.

  • If this position is listed as remote or hybrid, you’ll periodically work from a Booz Allen or client site facility.
  • If this position is listed as onsite, you’ll work with colleagues and clients in person, as needed for the specific role.

EEO Commitment

We’re an equal employment opportunity/affirmative action employer that empowers our people to fearlessly drive change – no matter their race, color, ethnicity, religion, sex (including pregnancy, childbirth, lactation, or related medical conditions), national origin, ancestry, age, marital status, sexual orientation, gender identity and expression, disability, veteran status, military or uniformed service member status, genetic information, or any other status protected by applicable federal, state, local, or international law.

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