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Job Details


Senior Cyber Security Specialist




Reston, Virginia, United States


Job Description:

Leidos is a Fortune 500™ company aimed at embracing and solving some of the world’s most pressing challenges. Through science and technology, [Register to View] Our [Register to View] offers an array of exciting career opportunities for the best IT, energy, logistics and engineering professionals.

We are seeking a Senior Cyber Security Specialist in Washington DC, to work with the best and brightest for our US Treasury programs. You will work in a fast-paced and diverse environment, enjoy flexible work arrangements, and will have a management team that encourages your career development and growth. In this role, you will gain many intangible skills, such as time and task management, critical thinking and problem solving, the ability to communicate complicated problems in a concise manner, as well as solve complex problems using available tools.

The selected candidate will operate all aspects of Information Systems (IS) data availability, integrity, authentication, confidentiality, and non-repudiation

Primary Responsibilities

  • Implement and monitor security measures for communication systems, networks, and provide advice that systems and personnel adhere to established security standards and Governmental requirements for security on these systems.

  • Collaborate with investigative agencies in their investigations and responses to incidents and report those incidents on a graduated scale of severity.

  • Be the subject matter expert within the cyber security domain.

  • Develop and execute Government approved security policies, plans, and procedures; implement data network security measures; operate and monitor network intrusion detection and forensic systems; conduct IS security incident handling; support Continuity of Operations Plan/Disaster Recovery (COOP/DR) plans, and perform certification of IS and networks.

  • Provide technical support for Plan of Action and Milestone process and remediation activities.

  • Lead and manage work of other technical staff.

  • Perform other information security duties including operation of Electronic Key Management

  • Resolve highly complex problems using technical knowledge.

  • In-depth understanding of technical principles, theories and concepts.

  • Support the monitoring of cloud applications, the investigation of cybersecurity incidents, and other incidents as necessary.

  • Knowledge of most recent versions of Government-wide and Bureau-specific security policies and standards.

  • System (EKMS) and maintenance of Public Key Infrastructure (PKI).

  • Operate Host Based Security System (HBSS), firewalls, Intrusion Prevention Systems (IPS), Intrusion Detection Systems (IDS), other point of presence security tools, Virtual Private Networks (VPNs), and related security operations.

  • Support SA&A efforts with assistance from federal technical resources.

  • Perform defensive cyber operation duties including, but not limited to, ensuring workstation and server compliancy with McAfee Host Based Security System (HBSS) requirements; identifying cybersecurity incidents using HBSS, Tenable SecurityCenter, RedSeal, McAfee Security Information and Event Manager (SIEM), and other automated tools; operating Imperva Web Application and Database firewalls; performing forensics and remedial action on cybersecurity incidents; and reporting defensive cyber operations statistics.


  • Bachelor's Degree and a minimum of 12-15 years of relevant experience or Master’s Degree with 10-13 years of relevant experience.

  • Information Assurance Technician (IAT) Level III (including CISSP, CASP+, or CCNP certification)

  • Public Trust Clearance

Desired Requirements

  • Security Certifications (CISSP a plus)

  • Other IT certifications (cloud, Microsoft)

Leidos is growing! Connect with us on [Register to View] and [Register to View] .

We value and support the well-being and mobility of our employees with competitive benefit packages, complementary e-learning training, work-life flexibility, an exciting [Register to View] , and a diverse, inclusive and ethical work place. In fact, in 2020, Leidos was ranked as one of the “[Register to View] ” by the Ethisphere Institute for the third consecutive year.

Pay Range:

Pay Range $113,100.00 - $174,000.00 - $234,900.00

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.