Cybersecurity Specialist - Senior Security Clearance

Position: Cybersecurity Specialist - Senior with Security Clearance
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- Description Looking for an opportunity to make an impact?  At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers’ success. We empower our teams, contribute to our communities, and operate sustainable. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community.

Our Mission, Vision, and Values guide the way we do business.  If this sounds like the kind of environment where you can thrive, keep reading!  The Intel Security Sector delivers technology-enabled services and mission software capabilities for defense and intel customers in the areas of cyber, logistics, security operations, and decision analytics.  Your greatest work is ahead!  Leidos has an exciting opportunity for a Senior Cybersecurity Specialist in our Intel Security Sector's Analysis Solutions Business Area.  

Our talented team is at the forefront in Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management. At Leidos, we offer competitive benefits, including Paid Time Off, 11 paid Holidays, 401K with a 6% company match and immediate vesting, Flexible Schedules, Discounted Stock Purchase Plans, Technical Upskilling, Education and Training Support, Parental Paid Leave, and much more.  

Join us and make a difference in National Security!  

Job Summary  This position will be located at one of our customer sites in Bethesda, MD;
Reston, VA; or Joint Base Anacostia-Bolling, DC. The Senior Cybersecurity Specialist supports the organization’s cybersecurity program by implementing and maintaining security operations at both tactical and operational levels. This role helps ensure that security controls are operating effectively across key areas including security logging, monitoring, alert management, incident response, vulnerability management, and configuration management.  The analyst will work closely with multidisciplinary teams—including Information Systems Security Engineers (ISSEs), Information Systems Security Managers (ISSMs), software developers, and systems engineers —to strengthen the security posture of mission systems.

Throughout the Dev Sec Ops  lifecycle, the candidate will assist in developing, implementing, and maintaining robust security strategies that protect mission-critical systems, data, and infrastructure while ensuring compliance with organizational and federal cybersecurity requirements.  Are you ready for your next career challenge? Join a team committed to a Mission!

Responsibilities Include:

* Oversee advanced cybersecurity protocols, risk management, and ensures DoW-aligned compliance standards.  
* Monitor system and network security using Security Information and Event Management (SIEM) tools such as Splunk Enterprise Security to detect, analyze, and respond to potential threats or anomalous activity. Investigate and respond to cybersecurity incidents, including system or network breaches and malware attacks, and support digital forensic investigations as needed.  
* Conduct routine vulnerability scans, provide formal and informal reports to technical teams, and track remediation efforts to closure.  
* Research and evaluate emerging cybersecurity threats and mitigation strategies; proactively identify security weaknesses and vulnerabilities; and audit systems to ensure secure configurations.  
* Audit systems configuration to ensure compliance with established cybersecurity policies, standards, and secure configuration baselines.  
* Continuously monitor security advisories, bulletins and industry threat intelligence to stay informed of current vulnerabilities, threats and trends.  
* Participate in data analysis and root cause analysis following service-impacting incidents and providing recommendation for corrective actions and security improvements. Collaborate with technical teams, developers, and customer leadership to strengthen the overall security posture of the supported systems.  
* Provide risk-based recommendations to customers after reviewing the overall…