To our valued Leidos candidates:

Coronavirus is on everyone's mind with the effects being felt around the world. The markets are volatile, and we're all concerned for the health and safety of our families, friends, and colleagues. Please know that we're taking all necessary measures to safeguard our employees, customers and the communities in which we live, including following all recommended best practices around social distancing.

With that in mind, in an abundance of caution, we are canceling all face to face career events, such as job fairs and open house events. In the coming days and weeks, we will be hosting career events virtually, using our online chat tools so that we may continue our hiring practice safely and securely. You can find available virtual career events at

We are using telephone meetings and online chats via Brazen to conduct interviews and hiring discussions, and we are offering options for video interviews so that you can have a virtual face to face meeting with your potential new leader. We do not conduct interviews or extend offers via text or chat based social media, such as WhatsApp or MySpace.

Leidos will never ask you to provide payment-related information at any part of the employment application process, nor will Leidos ever advance money as part of the hiring process. And Leidos will communicate with you only through emails that are generated by automated system. If you receive an email purporting to be from Leidos that asks for payment-related information or any other personal information, please report the email to Chris Scalia, Leidos’ Senior Vice President of Talent Acquisition, at [email protected].

As a company, as a country, as a world, we have confronted challenging moments before. We are confident that, guided by our values and the strength of our community as well as the commitment we have to the important work we do each day, we will find our way through this time together. We will do this with the care and concern for one another and the common good that defines. Please keep those impacted by the virus in your thoughts.

Close Window
Join our talent network

Job #: R-00032704
Location: Fort Meade, MD
Category: Security Architecture and Engineering
Schedule (FT/PT): Full Time
Travel Required: Yes, 10% of the time
Shift: Day
Potential for Telework: No
Clearance: Top Secret
Referral Eligibility: Eligible
Group: Defense

This job posting is no longer active.

Share: mail twitter linkedin


Job Description:

Leidos Defense Group has a current job opportunity for a Network Security Architect/Engineer at Ft. Meade, MD.

The candidate will be a member of the Cyber Security Service Provider (CSSP) Team on the DISA GSM-O program in support of DISA Task Order 29. Perform network architecture reviews, and provide recommendations on network security strategy, and network instrumentation to support defensive cyber operations. The employee might travel 10% of the time.

•Conduct interviews with customers to identify and make recommendations for security tools and capabilities to meet customer security requirements.
•Research and Develop Defensive Cyber Operations (DCO) security data strategies to include boundary and endpoint specific to CSSP service portfolio.
•Manage the process to request, track, and validate CSSP data requirements across multiple Areas of Responsibility (AOR).
•Engineer and provide the customer, vendor and Mission owner-specific cloud and endpoint security data acquisition strategies.
•Act as primary CSSP-driven liaison between the program and Data Brokering, concerning the continual refinement of cloud and endpoint data ingest.
•Continually adjust CSSP cloud and endpoint data defined in DCO Data Action Plan, based on measurement of effectiveness.
•Conduct network security architecture reviews to determine the size, and placement of intrusion monitoring equipment during the customer onboarding process.
•Conduct periodic architectural reviews of installed sensors to assess effectiveness and propose optimal installation alternatives as required.
•Conduct periodic reviews of sensor metric reports to evaluate and prioritize sensors for review and assessment
•Engage with customers and the DISA team of stakeholders to continually assess and verify sensor service issues.
•Function as network security design and architecture Subject Matter Expert (SME) in support of DISA Task Order 29.
•Conduct and deliver weekly status updates to customer.

•Bachelor's Degree with 8+ years of experience;additional work experience may be used in lieu of a degree.
•Must have DoD 8570 IAT Level 2 certification (Security+, CCNA Security, or equivalent).
•Experience with designing and securing enterprise network environments (traditional and virtual).
•Experience with designing and securing internal and public/private cloud-based environments
•In-depth understanding of network security best practices and methodologies.
•Experience in DCO utilizing Sysmon and Windows Event Collection/Forwarding
•Must have Top Secret clearance w/ SCI Eligibility.

•Active TS/SCI clearance.
•Experience w/ DoD and DISA Networks.
•Experience with IDS/IPS, FirePOWER, SourceFire, NGIPSv, SNORT, Suricata, Splunk, Palo Alto NGFW, SPAN and TAP.
•Experience w/ cloud security strategy.
•Knowledge of DoD Cloud Computing Security Requirements Guide (CC SRG).
•Knowledge of Federal Risk and Management Program (FedRAMP).
•Experience in DCO using Sysmon and Windows Event Collection/Forwarding.
•Experience with Endpoint Detection and Response Solutions, Carbon Black, Tanium, Cisco AMP.
•Experience w/ MPLS, VRF, technologies including VPC, VDC.


External Referral Eligible

External Referral Bonus:


Potential for Telework:


Clearance Level Required:

Top Secret


Yes, 10% of the time

Scheduled Weekly Hours:




Requisition Category:


Job Family:

Security Architecture and Engineering

About Leidos

Leidos is a Fortune 500® information technology, engineering, and science solutions and services leader working to solve the world's toughest challenges in the defense, intelligence, homeland security, civil, and health markets. The company's 33,000 employees support vital missions for government and commercial customers. Headquartered in Reston, Virginia, Leidos reported annual revenues of approximately $10.19 billion for the fiscal year ended December 28, 2018. For more information, visit

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 here.

Securing Your Data

Leidos will never ask you to provide payment-related information at any part of the employment application process. And Leidos will communicate with you only through emails that are sent from a email address. If you receive an email purporting to be from Leidos that asks for payment-related information or any other personal information, please report the email to [email protected].

Commitment to Diversity

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.

This job posting is no longer active.

Talent Community

Join our Talent Community to create a profile, enabling a streamlined application process and to help our recruiters better understand your areas of expertise and interest.

Join our Talent Community