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.

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Job #: R-00048416
Location: San Diego, CA
Category: Information Assurance
Schedule (FT/PT): Full Time
Travel Required: Yes, 10% of the time
Shift: Day
Potential for Telework: No
Clearance: Secret
Referral Eligibility: Eligible
Group: Defense

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Job Description:

Leidos currently has an opening for an Information System Security Officer (ISSO) to work in our San Diego, CA location. The desired candidate will utilize their diverse skillset to configure and secure Windows and Linux systems, supporting the program Information Systems Security Manager (ISSM) with meeting the Defense Counterintelligence and Security Agency Risk Management Framework (RMF) initiative.

The ISSO will possess the ability to ensure the secure implementation of Commercial off-the-shelf and Government Furnished Equipment assets by applying Security Technical Implementation Guide (STIG) and other security baselines. The candidate will also be responsible for implementing system maintenance and security patches, conduct vulnerability scans, as well as respond to helpdesk tickets at the local site.

Basic Qualifications:

  • Bachelor's degree and 4+ years related experience in Information Systems, Computer Science or related field or a Master’s with 2+ years of related experience. (Additional relevant experience, training, and / or certification may be considered in lieu of degree.)

  • Candidates must have an active Secret clearance.

  • Security+ OR CySA+ certification.

  • Additional desired certifications include MCP OR Linux+ needed within 6 months of hire.

  • Strong experience with information security, supporting processes and procedures.

Preferred Qualifications:

  • Experience with the Defense Counterintelligence and Security Agency Assessment and Authorization Process Manual (DAAPM).

Primary Responsibilities:

  • Build, configure and apply security baselines (e.g. STIG’s) to various technologies such as Windows and Linux.

  • Conduct weekly security audits on information systems and document anomalies.

  • Operate software programs such as Tenable Nessus and SCAP to detect information system misconfigurations and vulnerabilities. 

  • Perform continuous monitoring security assessments and document compliance in accordance with NIST 800-53 requirements.

  • Perform and manage the security awareness training/ indoctrination process.

  • Detect cyber security incidents and escalate appropriately.  

  • Respond and provide resolution to helpdesk and incident and tickets.

  • Conduct backups and restoration of information systems.

  • Meet project deadlines a requested by the ISSM.

External Referral Bonus:


Potential for Telework:


Clearance Level Required:



Yes, 10% of the time

Scheduled Weekly Hours:




Requisition Category:


Job Family:

Information Assurance

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 38,000 employees support vital missions for government and commercial customers. Headquartered in Reston, Va., Leidos reported annual revenues of approximately $11.09 billion for the fiscal year ended January 3, 2020. 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.

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