Leidos' Digital Modernization sector is seeking a Cyber Security Watch Officer (CSWO) to join the GSM-O effort at the Pentagon. This position will be supporting Day Shift.
Applicants must have a minimum Secret clearance with ability to obtain TS/SCI and must be available for shift work (including weekends), which may vary based on program needs and manning levels. We support 24/7 operations and while shift assignments are usually static, they are based on both preference and contract requirements, so we ask our team members to remain flexible to potential shift modifications to meet minimum staffing requirements. All new hires will spend a brief ramp-up period on weekday day shift to start.
Primary Responsibilities:
- Support the Joint Network Operation and Support Center (JNOSC) Battle Captain and Cyber Center Security Chief with all cyber defense and network assurance issues.
- Oversee all network defense operations, and be familiar with the operations process flow and execution.
- Maintain awareness of all pertinent directives, orders, alerts, and messages; prepare and deliver daily situational awareness and operational update briefings.
- Serve as Defensive Cybersecurity SME during 24x7 operations.
Required Clearance and Certifications:
- Must have, at minimum, an active DoD Secret security clearance with ability to obtain TS/SCI (active TS/SCI preferred)
- Must have DoD 8570 IAT II or higher certification (Security+ CE or equivalent) prior to start.
Required Qualifications:
- Bachelor's degree and 3+ years of professional experience; additional military or relevant work experience may be considered lieu of a degree.
- CND experience (Protect, Detect, Respond and Sustain) within a Computer Incident Response organization.
- Demonstrated understanding of the life cycle of network threats, attacks, attack vectors and methods of exploitation with an understanding of intelligence driven defense and/or Cyber Kill Chain methodology.
- Experience in a 24x7 environment.
About our Program:
Through the J6 Penetration Handling, Incident, System Health (PHISH) support services task order on the GSM-O contract, we provide IT products, services and solutions to the Pentagon and other DoD offices and agencies for them to meet mission and business requirements. Our CSWOs are principally engaged in the triage of events, cyber incident handling, network analysis and threat detection, trend analysis, metric development, vulnerability information dissemination, and the DoD Cyber Security Service Provider (CSSP) methodology.
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:September 22, 2026For 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.
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.
Skills Required
- Minimum Secret security clearance
- Ability to obtain Top Secret/Sensitive Compartmented Information clearance
- Active Top Secret/Sensitive Compartmented Information clearance
- DoD 8570 IAT II or higher certification, such as Security+ CE or equivalent
- Bachelor's degree
- 3+ years of professional experience
- CND experience within a Computer Incident Response organization
- Understanding of network threat lifecycles, attacks, attack vectors, exploitation methods, intelligence-driven defense, or Cyber Kill Chain methodology
- Experience in a 24/7 operational environment
- Availability for shift work, including weekends, with flexibility for shift modifications
Leidos Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Leidos and has not been reviewed or approved by Leidos.
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Healthcare Strength — Healthcare coverage is described as comprehensive, with multiple plan options, low office-visit copays in some plans, and access to mental health and wellness support tools. The availability of HSA/FSA options and employer contributions is positioned as a meaningful part of the total package.
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Retirement Support — Retirement benefits are framed as a strong component of total rewards, highlighted by a 401(k) match and immediate vesting in the standard package. The Employee Stock Purchase Plan is also presented as an additional long-term wealth-building feature.
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Wellbeing & Lifestyle Benefits — Wellbeing and lifestyle supports extend beyond core insurance, including wellness programs, fitness-related stipends, and assistance resources. Work flexibility and related perks are also included as part of the broader rewards experience.
Leidos Insights
What We Do
We Are Leidos For 50 years we have been tackling some of the biggest problems that face our nation and our world. OUR MISSION Through our culture of innovation and history of performance, we develop deep customer trust built on integrity and create enduring solutions that improve our world. Leidos is a science and technology solutions leader working to address some of the world’s toughest challenges in the defense, intelligence, homeland security, civil, and healthcare markets. The company’s 43,000 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. Leidos was cited for the meaningful work employees perform that is challenging, impactful, and aligned with our customers’ missions as reasons professionals want to work and stay at our company. Leidos has also been named to lists including Forbes’ Best Employers for Diversity, Forbes’ America’s Best Employers for Women, Military Times Best for Vets Employers, and Ethisphere Institute’s World's Most Ethical Companies®. Employees enjoy career enrichment opportunities available through mobility and development and experience rewarding relationships with supportive supervisors and talented colleagues and customers. Employees appreciate our flexible work environment, allowing for and encouraging a true work-life balance. Our professionals are also excited about our Employee Resource Groups, like the newly launched Collaborative Outreach with Remote and Embedded Employees (CORE), which strives to create an environment where every employee, regardless of location, feels fully engaged as a valued employee of Leidos. Your most important work is ahead.
