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-00053840
Location: Adelphi, MD
Category: Systems Engineering
Schedule (FT/PT): Full Time
Travel Required: Yes, 10% of the time
Shift: Day
Potential for Telework: No
Clearance: Top Secret/SCI
Referral Eligibility: Eligible
Group: Defense

Share: mail twitter linkedin


Job Description:

Leidos Enterprise & Cyber Solutions Defense group is seeking a Computer Systems Engineer to support our recently awarded SBNAB contract.  This position provides Systems Engineering technical expertise to C5ISR Center Sustaining Base Network Assurance Branch (SBNAB) Defensive Cyber Operations (DCO) Security Operations Center (SOC). Beyond advising and guiding technical matters, this position is tasked with driving implementation and adoption of new tools, research, capabilities, frameworks, and methodologies while ensuring those already in use are implemented, utilized properly, and improved. You will be expected to assist in planning, implementing, and supporting local and wide-area infrastructure and network solutions between multiple platforms.

Location: Adelphi, MD

Clearance: You must hold an active DoD Top Secret SCI clearance

Primary Responsibilities

•    Manages / Leads planning and implementation of Linux based security solutions across a variety of networks and environments.
•    Works within a team supporting a technical project planning environment.
•    Monitors, troubleshoots, and resolves hardware, software, and network issues and coordinates with vendors for installation of such items as servers and switches.
•    Monitors all activities of the network facilities and ensures high system availability
•    Provides technical support in all customer interaction situations, including receipt of specifications, design, test, and response to service requests.
•    Debugs and tests network, infrastructure and system inter-operability
•    Provides initial implementation support of subscriber hardware to assure proper execution
•    Provides resolution for system failures or degradations
•    Provides RMF and accreditation efforts
•    Supports projects and provides or maintains documentation as required

Basic Qualifications

•    BS degree and 4 to 8 years' of prior relevant experience or Masters with 2 to 4 years' of prior relevant experience.
•    Must hold an active Top Secret/SCI clearance
•    Must hold current DoD 8570 Compliant IAT Level III and CSSP Infrastructure Support Certifications such as RHCA, RHCE, CCNA Security, CySA+, GICSP, GSEC Security+ CE, CND, SSCP, CEH
•    Three or more years of experience in systems administration and network operations
•    Three or more years of experience supporting a classified network, configuring/maintaining routers/switches/firewalls
•    Three or more years of experience in cybersecurity and privacy principles used to manage risks related to the use, processing, storage, and transmission of information or data
•    Three or more years working knowledge of defense-in-depth principles, network/HW/SW security architecture, network topology, IT device integrity, and common security elements, ITIL framework and best practices
•    Three or more years of experience in developing and maintaining technical documents, analyses, and reports

Preferred Qualifications  
•    Extensive experience with DoD and classified networks
•    Experience with RMF
•    Experience designing and managing high-availability services
•    Experience with enterprises to include LINUX and cloud technologies
•    Excellent verbal, interpersonal and written communication skills
•    Strong analytical, problem-solving and decision-making capabilities
•    Team player with the ability to work in a fast-paced environment
•    Ability to multi-task in a fast-pasted environment and to work independently


External Referral Bonus:


Potential for Telework:


Clearance Level Required:

Top Secret/SCI


Yes, 10% of the time

Scheduled Weekly Hours:




Requisition Category:


Job Family:

Systems Engineering

Pay Range:

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 40,000 employees support vital missions for government and commercial customers. Headquartered in Reston, Virginia, Leidos reported annual revenues of approximately $12.30 billion for the fiscal year ended January 1, 2021. 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.

   Save Job Saved

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