Today
Dept of Homeland Security
$104,650 - $189,175
Unspecified
IT - Security
Arlington, VA (On-Site/Office)
R-00171001
Description
We are seeking a highly skilled and motivated Sepio Engineer to join our cybersecurity team. In this pivotal role, you will be responsible for designing, implementing, and maintaining security measures, with a specific focus on leveraging the Sepio platform for asset visibility and rogue device mitigation. You will play a key part in safeguarding our organization's physical and digital assets from evolving cyber threats by ensuring comprehensive device visibility and policy enforcement.
Primary Responsibilities:
The Sepio Engineer will be responsible for designing, implementing, and maintaining security measures, with a specific focus on leveraging the Sepio platform for asset visibility and rogue device mitigation. The Engineer will play a key part in safeguarding our organization's physical and digital assets from evolving cyber threats by ensuring comprehensive device visibility and policy enforcement.
Basic Qualifications:
Education: A Bachelor's degree in Computer Science, Information Technology, or related field and 8-12 years of experience. Additional experience may be considered in lieu of a degree
Experience: 3+ years of experience in system security engineering, network security, or a related field, with hands-on experience in security technologies such as firewalls, IDS/IPS, and endpoint protection solutions.
Technical Skills: Strong knowledge of security principles, best practices (NIST, ISO 27001), and networking concepts/protocols (TCP/IP, VLANs, VPNs).
Problem-Solving: Excellent analytical and problem-solving skills, with the ability to troubleshoot complex issues in both on-premise and cloud deployments.
Communication: Strong written and verbal communication skills, with the ability to convey complex security concepts to technical and non-technical stakeholders.
Preferred Qualifications:
If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.
Original Posting: November 24, 2025
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.
Pay Range: Pay Range $104,650.00 - $189,175.00
The Leidos pay range for this job level is a general guideline only and 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.
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 LeidosCareersFraud@leidos.com .
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.
Description
We are seeking a highly skilled and motivated Sepio Engineer to join our cybersecurity team. In this pivotal role, you will be responsible for designing, implementing, and maintaining security measures, with a specific focus on leveraging the Sepio platform for asset visibility and rogue device mitigation. You will play a key part in safeguarding our organization's physical and digital assets from evolving cyber threats by ensuring comprehensive device visibility and policy enforcement.
Primary Responsibilities:
The Sepio Engineer will be responsible for designing, implementing, and maintaining security measures, with a specific focus on leveraging the Sepio platform for asset visibility and rogue device mitigation. The Engineer will play a key part in safeguarding our organization's physical and digital assets from evolving cyber threats by ensuring comprehensive device visibility and policy enforcement.
- Sepio Platform Management: Design, deploy, configure, and optimize the Sepio Asset Risk Management (ARM) solution to identify, detect, and handle all peripheral devices within the infrastructure.
- Rogue Device Mitigation: Develop and implement robust policy enforcement mechanisms to automatically detect and block unauthorized or rogue hardware devices based on physical layer data characteristics.
- Security Architecture: Collaborate with IT and network engineering teams to integrate security controls into the overall system architecture, ensuring a defense-in-depth strategy.
- Vulnerability & Risk Assessment: Conduct thorough risk assessments and vulnerability analyses to identify potential security weaknesses, prioritizing findings for remediation and recommending mitigation strategies.
- Monitoring & Incident Response: Monitor security systems for irregular behavior and participate in incident response activities, including investigation, containment, and recovery efforts related to hardware and network anomalies.
- Policy Development: Develop, document, and maintain security policies, procedures, and standards to ensure compliance with industry regulations and best practices.
- Collaboration & Training: Work closely with cross-functional teams (e.g., Product, Support, Engineering) and provide guidance and training to staff on security best practices and the effective use of security tools.
- Documentation and reporting along with presentation, teamwork and DHS wide collaboration are among the expected duties and mission of the task order
- Define system security & design requirements to meet FISMA and FedRAMP compliance standards
- Provide follow-up reports (technical findings, feedback, resolution steps taken) for Root Cause analysis, engineering technical assessment and process improvement initiatives
Basic Qualifications:
Education: A Bachelor's degree in Computer Science, Information Technology, or related field and 8-12 years of experience. Additional experience may be considered in lieu of a degree
Experience: 3+ years of experience in system security engineering, network security, or a related field, with hands-on experience in security technologies such as firewalls, IDS/IPS, and endpoint protection solutions.
Technical Skills: Strong knowledge of security principles, best practices (NIST, ISO 27001), and networking concepts/protocols (TCP/IP, VLANs, VPNs).
Problem-Solving: Excellent analytical and problem-solving skills, with the ability to troubleshoot complex issues in both on-premise and cloud deployments.
Communication: Strong written and verbal communication skills, with the ability to convey complex security concepts to technical and non-technical stakeholders.
Preferred Qualifications:
- Experience working with Nucleus or TVM
- Experience working in AWS and Azure
- Experience working with CrowdStrike or RelativityOne is a plus
If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.
Original Posting: November 24, 2025
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.
Pay Range: Pay Range $104,650.00 - $189,175.00
The Leidos pay range for this job level is a general guideline only and 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.
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 LeidosCareersFraud@leidos.com .
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.
group id: SCNCAPI2
Introducing the Next Level of Leidos
