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Added 12 hours ago
Endpoint Security Engineer
Valiant Solutions, LLC
Springfield, VA, VA · St. Louis, MO
Valiant Solutions is seeking an Endpoint Security Engineer to join our rapidly growing and innovative team!
Added 2 days ago
IL
Senior Windows Engineer
IQUASAR LLC
Fort Gordon, GA
- $120,000 to $150,000 USD / year
Support enterprise endpoint security (Tanium, Trellix, HBSS/AESS) and Splunk log management (C.5.2.6)
Added 2 days ago
RN
Cyber Systems Security Engineer
RTL Networks Inc
CA
- $95,000 to $170,000 USD / year
Support execution of Continuous Monitoring cyber tools for the environment, e.g., Qmulos, Splunk, DISA ACAS (or Nessus), and Trellix Endpoint Security).
Added 2 days ago
RN
Cyber Systems Security Engineer
RTL Networks Inc
CO
- $95,000 to $170,000 USD / year
Support execution of Continuous Monitoring cyber tools for the environment, e.g., Qmulos, Splunk, DISA ACAS (or Nessus), and Trellix Endpoint Security).
Added 3 days ago
Data Loss Prevenetion Engineer
BOOZ ALLEN HAMILTON INC
HILL AIR FORCE BA, UT
Job Number: R0251896 Data Loss Prevenetion Engineer The Opportunity: We are seeking a highly skilled and experienced Forcepoint Engineer SME to support the architecture, deployment,…
Added 3 days ago
Data Loss Prevenetion Engineer
BOOZ ALLEN HAMILTON INC
Darbydale, OH
Job Number: R0251896 Data Loss Prevenetion Engineer The Opportunity: We are seeking a highly skilled and experienced Forcepoint Engineer SME to support the architecture, deployment,…
Added 3 days ago
Cyber Systems Engineer (Colorado Springs)
Cornerstone Defense
United States
Support execution of Continuous Monitoring cyber tools such as Qmulos, Splunk, DISA ACAS (Nessus), and Trellix Endpoint Security.
Added 3 days ago
Data Loss Prevenetion Engineer
Booz Allen Hamilton
Mechanicsburg, PA
Job Number: R0251896 Data Loss Prevenetion Engineer The Opportunity: We are seeking a highly skilled and experienced Forcepoint Engineer SME to support the architecture, deployment,…
Added 3 days ago
SITEC - Cyber Endpoint Security Systems Engineer - MacDill AFB
Peraton
MacDill AFB, FL
Peraton requires Cyber Endpoint Security Systems Engineer to support the Special Operation Command Information Technology Enterprise Contract (SITEC) – 3 EOM. This position is located at…
Added 4 days ago
Network Security Engineer II
Hyundai Autoever America
Irvine, CA
The Security Architecture and Engineering team within the CISO organization is seeking a Network Security Engineer II to help design, implement, operate, and continuously improve enterprise…
Added 4 days ago
CL
Vulnerability Management and Endpoint Security Administrator
Career Listings
Ft Belvoir, VA
- $120,000 to $126,000 USD / year
The role requires strong technical expertise with ACAS/Nessus and Tanium, along with working knowledge of Trellix endpoint-security technologies. The candidate will independently evaluate…
Added 5 days ago
Classified Infrastructure Engineer, Manager
The MITRE Corporation
Bedford, MA
…virtualization (VMware), identity and access (Active Directory), endpoint security (Trellix), backup/recovery (Commvault), and collaboration platforms…
Added 6 days ago
Vulnerability Management and Endpoint Security Administrator
Leidos
Fort Belvoir, VA
The role requires strong technical expertise with ACAS/Nessus and Tanium, along with working knowledge of Trellix endpoint-security technologies. The candidate will independently evaluate…
Added 6 days ago
CL
Hybrid Multi-Cloud Engineer SME - Azure Endpoint Management
Career Listings
Albuquerque, NM
- $199,000 to $209,000 USD / year
SarelaTech is seeking a highly qualified Hybrid Multi-Cloud Engineer SME to support mission-critical Department of Defense (DoD) programs Fort Belvoir, VA or Albuquerque, New Mexico. The…
Added 6 days ago
CL
Hybrid Multi-Cloud Engineer SME - Azure Endpoint Management
Career Listings
Ft Belvoir, VA
- $199,000 to $209,000 USD / year
SarelaTech is seeking a highly qualified Hybrid Multi-Cloud Engineer SME to support mission-critical Department of Defense (DoD) programs Fort Belvoir, VA or Albuquerque, New Mexico. The…
Added 7 days ago
Endpoint Engineer
Booz Allen Hamilton
Colorado Springs, CO
Added 9 days ago
Information System Security Engineer
MANTECH
Chantilly, VA
Deploy, configure, and troubleshoot Trellix endpoint security tools across host endpoints to enforce strict media/device control policies and host-based defenses
Added 10 days ago
Bilingual Korean IT Security Engineer
HD Hyundai Power Transformers USA
Montgomery, AL
Administer and maintain enterprise security solutions including Endpoint Protection (EPP/EDR), Data Loss Prevention (DLP), Email Security, Web Security, CASB, Device Control, and Microsoft…
Added 11 days ago
Sr. Endpoint Security Engineer I (Trellix) (6837)
MetroStar
Washington, DC
As a Sr. Endpoint Security Engineer I (Trellix SME) , you’ll serve as the technical lead for the organization's endpoint security and data protection ecosystem, balancing day-to-day…
Added 11 days ago
Endpoint Security / ESS Engineer (Journeyman)
DecisionPoint | Cortek
Remote, United States
DecisionPoint seeks a Journeyman Endpoint Security / ESS Engineer to support endpoint-security administration, policy enforcement, agent health, compliance reporting, and security-event…
Added 12 days ago
JS
Multi-Cloud Engineer SME (Azure/AWS)
JCS Solutions LLC
Fort Belvoir, VA
- $96,000 to $105,000 USD / year
JCS Solutions is seeking a highly qualified Hybrid Multi-Cloud Engineer SME to support a mission-critical Department of Defense (DoD) program. This senior-level position will serve as a…
Added 12 days ago
Data Loss Prevention Engineer
BOOZ, ALLEN & HAMILTON, INC.
Fort Meade, MD
3+ years of experience deploying and configuring endpoint DLP tools such as Forcepoint, Trellix, Microsoft, or Symantec, and Web Security in an enterprise or DoD environment
Added 12 days ago
Data Loss Prevenetion Engineer
BOOZ, ALLEN & HAMILTON, INC.
Fort Meade, MD
3+ years of experience deploying and configuring endpoint DLP tools such as Forcepoint, Trellix, Microsoft, or Symantec, and Web Security in an enterprise or DoD environment
Added 12 days ago
Cyber Systems Security Engineer - (4845) - Fort Walton Beach
Lockheed Martin Corporation
Fort Walton Beach, FL
Added 12 days ago
Security Engineer – Endpoint Security Tool Monitoring
Leidos
Alexandria, VA
Leidos is seeking experienced Security Engineers – Endpoint Security Tool Monitoring to support the Defense Manpower Data Center (DMDC) CyberPRIMES program. Leidos is a major partner on the…

MANTECH

Information System Security Engineer

Chantilly, VA, United States

The projected compensation range for this position is $91,600.00-$153,800.00.

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Job details

Pay: The projected compensation range for this position is $91,600.00-$153,800.00.
Posting language: English

Original job description

Shape the future of defense with MANTECH! Join a team dedicated to safeguarding our nation through advanced tech and innovative solutions. Since 1968, we’ve been a trusted partner to the Department of Defense, delivering cutting-edge projects that make a real impact. Dive into exciting opportunities in Cybersecurity, IT, Data Analytics and more. Propel your career forward and be part of something extraordinary. Your journey starts now - protect and innovate with MANTECH!

MANTECH seeks a motivated, career and customer-oriented Information Systems Security Engineer to join our team in Chantilly, VA. This position will be onsite. This role can optionally be in San Diego, CA.

The Information Systems Security Engineer (ISSE) will support Risk Management Framework (RMF), security engineering, and cybersecurity lifecycle activities. This role focuses on security control design and implementation, system hardening, technical remediation, continuous monitoring, and security stack operations, with an emphasis on Linux systems and real-time operating systems (RTOS), alongside supporting knowledge of Windows environments.

Responsibilities include but are not limited to:

Assist with or lead the design and integration of technical security controls into system hardware, software, and networking architectures throughout the SDLC
Work within a technical security engineering team responsible for implementing and maintaining compliant security architectures across complex platforms
Support RMF execution and system categorization by defining authorization boundaries with network diagrams, hardware/software inventories, data flow documentation, and cryptographic mapping
Perform hands-on configuration, hardening, log analysis, and remediation on Linux and RTOS environments while enforcing DISA STIGs via automated scripting
Operate, configure, and maintain Nessus vulnerability scanners and collaborating with ISSOs to analyze scan outputs and determine remediation pathways
Deploy, configure, and troubleshoot Trellix endpoint security tools across host endpoints to enforce strict media/device control policies and host-based defenses
Support and maintain enterprise log ingestion and SIEM platforms such as Splunk or Elastic (ELK) to support centralized auditing and continuous monitoring
Maintain accurate RMF artifacts in eMASS, including the System Security Plan (SSP), POA&M, and supporting technical evidence to support Authorizing Official (AO) decisions

Minimum Qualifications:

Bachelor’s degree in IT, Computer Science, Cybersecurity, Computer Engineering, or related field with 2+ years of relevant cybersecurity, system administration or RMF experience; OR High School Diploma/GED with 6+ years of cybersecurity engineering, system administration, or RMF experience
2+ years of hands-on experience configuring, hardening, or troubleshooting Linux operating systems, with exposure to RTOS (e.g., QNX, VxWorks) or Windows environments
Active DoD 8570/8140 IAT Level II certification, e.g., CompTIA Security+ CE, CySA+, SecurityX, CISSP
Hands-on experience or working knowledge of Nessus vulnerability scanners and Trellix endpoint security tools
Experience or training with eMASS
Familiarity with scripting languages (Bash, Python, or PowerShell) for basic task automation, configuration management, or compliance checking

Preferred Qualifications:

Hands-on experience installing, configuring, or operating Splunk, Elasticsearch/Kibana (ELK), or another enterprise log analytics platform
Understanding of PL2 vs. PL3 security baselines, trust boundaries, and segmentation concepts
Active industry certifications such as CompTIA Linux+, CGRC, or IAT Level III SecurityX (CASP+), or CISSP
Experience integrating security into the SDLC or utilizing configuration management tools (Ansible, Puppet, Chef) for STIG automation

Clearance Requirements:

Must have a current or active Top Secret security clearance

Physical Requirements:

Must be able to remain in a stationary position 50% of the time
Needs to occasionally move about inside the office to access file cabinets, office machinery, etc.
Frequently communicates with co-workers, management, and customers, and must be able to exchange accurate information in these situations

The projected compensation range for this position is $91,600.00-$153,800.00. There are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location (For Remote Opportunities), education and certifications as well as Federal Government Contract Labor categories. In addition, MANTECH invests in its employees beyond just compensation. MANTECH’s benefits offerings include, dependent upon position, Health Insurance, Life Insurance, Paid Time Off, Holiday Pay, short-term and long-term Disability, Retirement and Savings, Learning and Development opportunities, wellness programs as well as other optional benefit elections.

MANTECH considers all qualified applicants for employment without regard to disability or veteran status or any other status protected under any federal, state, or local law or regulation.

If you need a reasonable accommodation to apply for a position with MANTECH, please email us at careers@mantech.com and provide your name and contact information.

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More about this job

Skills

Risk management
Cybersecurity
Linux
RTOS
Microsoft Windows
Documentation
Nessus
Troubleshoot
Splunk
Auditing
eMASS
SSP
Computer science
Computer engineering
System administration
Troubleshooting
QNX
Security+
CISSP
Bash
Python
Microsoft PowerShell
Regulatory compliance
Elasticsearch
Ansible
Puppet
Office equipment

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