Sr. Endpoint Security Systems Engineer

Leidos Inc; Bethesda (MD); Hybrid; USD 108,000 - 195,000; Full time

Benefits offered by this job

Competitive benefits

Paid Time Off

401K with company match

Job summary

Leidos is seeking a Sr. Endpoint Security Systems Engineer to design, deploy, maintain, and upgrade endpoint security in a hybrid cloud/on‑prem mission environment.

The role focuses on integrating Linux/Windows hosted systems with Trellix and maintaining scan policies to protect critical mission systems from external threats. The ideal candidate will have hands-on experience with Trellix EPO/Endpoint Threat Protection and strong incident response, forensics, and cross-team collaboration.

Qualifications

• Experience with Trellix EPO and Trellix Endpoint Threat Protection.
• Experience maintaining Linux and Windows systems.
• Ability to troubleshoot endpoint security integration with mission apps.
• Experience with incident detection, incident response and forensics.
• Bachelor's degree with 8+ years of relevant experience; active TS/SCI with polygraph.

Responsibilities

• Maintain and upgrade central management consoles across isolated networks.
• Integrate mission servers with the management console.
• Deploy endpoint protection updates and optimize scan policies.
• Troubleshoot integration issues with mission teams and tools.
• Automate and improve performance of endpoint security in hybrid environments.
• Integrate endpoint security findings with external tools like Splunk or AppDynamics.
• Investigate malware findings on mission servers.

Skills

Trellix ePolicy Orchestrator

Trellix Endpoint Threat Protection

Linux

Windows

Incident response

Forensics

Education

Bachelor's degree with 8+ years experience

Tools

Cisco Secure Endpoint

AWS

Splunk

AppDynamics

Job description

Description

Leidos has an exciting opportunity for a Sr. Endpoint Security Systems Engineer in our Intel Security Sector's Analysis Solutions Business Area. Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos, we offer competitive benefits, including Paid Time Off, 11 paid Holidays, 401K with a 6% company match and immediate vesting, Flexible Schedules, Discounted Stock Purchase Plans, Technical Upskilling, Education and Training Support, Parental Paid Leave, and much more. Join us and make a difference in National Security!

Job Summary

This effort is seeking an experienced Sr. Endpoint Security Systems Engineer to join our Cyber Security Engineering team. The focus of this team member will be to design, deploy, maintain, and upgrade endpoint security capabilities, with opportunities for cross training on our other security tools. Working in a hybrid cloud/on-prem mission environment the engineer will support integration of Linux and Windows hosted mission systems with the endpoint security product and maintaining the scan policies to ensure proper protection of mission systems from external threats.

Primary Responsibilities:

• Maintaining and upgrading the central management consoles (currently Trellix - ePolicy Orchestrator) on multiple isolated networks

• Managing the integration of mission application servers (Linux and Windows) with the management console

• Deploying malware protection software (currently Trellix Endpoint Threat Protection) updates and improved scan exclusion policies to mission application servers

• Responding promptly to mission teams to successfully troubleshoot issues with integration (including cases where excessive real time malware scans are believed to be impeding mission performance)

• Determine methods to automate and improve the performance of the endpoint security suite within a hybrid cloud/on-prem environment

• Integrate endpoint security scan processes for integrated reporting via external tools (such as Splunk or AppDynamics)

• Investigate findings of malware detected on mission application servers

Basic Qualifications:

• Experience with tools such as Trellix ePolicy Orchestrator and Trellix Endpoint Threat Protection

• Experience with maintaining systems on Linux and Windows platforms

• Ability to partner with mission application teams to jointly troubleshoot issues with endpoint security integration

• Experience with incident detection, incident response and forensics activities

• Strong attention to detail with analytical mind and outstanding problem-solving skills

• Bachelor's degree with 8 or more years relevant experience. Additional years of experience may be substituted in lieu of a degree.

• To be considered must have an active TS/SCI with polygraph security clearance

Preferred Qualifications

• Experience with Cisco Secure Endpoint (formerly AMP for Endpoints) or other endpoint security tools

• Experience with Cloud Computing Technologies/Amazon Web Services (AWS)

• Experience integrating endpoint security tool findings with external products such as Splunk or AppDynamics

• Experience with managing endpoint security across on-prem and cloud environment boundaries

• Experience with additional cyber security tools and processes such as Splunk, Rapid7, SolarWinds, Cisco IDS/IPS, VPN, WebInspect, AppDetective

At Leidos, the opportunities are boundless. We challenge our staff with interesting assignments that allow them to thrive professionally and personally. For us, helping you grow your career is good business. We look forward to learning more about you.

Pay Range:

Pay Range: Pay Range $107,900.00 - $195,050.00

The Leidos pay range for this job level is a general guideline onlyand not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

About Leidos

Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit www.Leidos.com.

Pay and Benefits

Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available at www.leidos.com/careers/pay-benefits.

Securing Your Data

Beware of fake employment opportunities using Leidos' name. Leidos will never ask you to provide payment-related information during any part of the employment application process (i.e., ask you for money), nor will Leidos ever advance money as part of the hiring process (i.e., send you a check or money order before doing any work). Further, Leidos will only communicate with you through emails that are generated by the Leidos.com automated system - never from free commercial services (e.g., Gmail, Yahoo, Hotmail) or via WhatsApp, Telegram, etc. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at [e-mail].

If you believe you are the victim of a scam, contact your local law enforcement and report the incident to the U.S. Federal Trade Commission.

Commitment to Non-Discrimination

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.