Senior Security Engineer

  • Leidos,
  • Washington, DC
  • 8 hours ago
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Security, Engineer, System, Linux, Hardware, Computer, Engineering, SEI, CISSP, CCNP, CCIE, MCSE, Architect, Shell Scripting, Network, TCP, IP, Bash, Python, Architecture
Full Time

Job Description


Job Description:

Leidos is seeking a talented Senior Security Engineer to join our team and lead our Infrastructure and Sensors team in support of a federal customer within the Department of Homeland Security (DHS) Enterprise Security Operations Center (ESOC). Senior Security Engineer will lead a team gather requirements and design, codify, integrate and implement secure solutions that support Security Operations as well as the underlying infrastructure required to deploy and run those solutions.

Primary Responsibilities
  • Lead the Infrastructure and Sensors engineering team
  • Provide leadership, coaching, and mentorship to team members
  • Conceptualize, Design, Build, and Maintain current and future SOC tools and platforms.
  • Manage multiple assignments, changing priorities, and work independently with little oversight.
  • Support all support, guidance and develop processes to evaluate and improve all operating systems, hardware support, software, firmware solutions and provide advisement concerning future purchase of the same.
  • Work closely with senior engineers, other team members and application owners to solve technical problems at the network, system and application levels.
  • Conduct periodic architectural reviews of installed sensors to assess effectiveness and propose optimal installation alternatives as required.
  • Conduct network security architecture reviews to determine the size, and placement of intrusion monitoring equipment during the customer onboarding process.
  • Conduct periodic reviews of sensor metric reports to evaluate and prioritize sensors for review and assessment.
  • Produce System Design documents, weekly and monthly reporting, and preparation and presentation of recommendations to the customer.
  • Resolve Linux system errors and crashes, disk space problems, huge file system and full disk errors.
  • Implementation and troubleshooting of Linux network services such as NFS, NTP, FTP, SSH, DNS, Sendmail,
  • Configure LDAP server and LDAP client on Linux machines for authentication and authorization.
  • Build new Linux Virtual Machines and physical servers using templates and ISOs.
  • Create new Linux templates and apply STIGs using DISA guidelines.
  • System administration and monitoring, file system management and disk management and creation of shell scripts for the automation of tasks and the extraction of logs.
  • Hardware and software installations, upgrades, maintenance, security analysis and network performance and tuning of Linux servers in a virtual infrastructure.
  • Installation, maintenance, and operation of Red Hat Satellite Server to manage RHEL server infrastructure.
  • Support operations across multiple geographic locations.
  • Develop solutions to complex technical issues.
  • Provide follow-up reports (technical findings, feedback, resolution steps taken) for Root Cause analysis, engineering technical assessment and process improvement initiatives

Basic Qualifications

  • The candidate shall have bachelor's degree in Computer Science, Engineering, or related field and a minimum of 12 years of experience in system administration, database administration, network engineering, software engineering, or software development, with a concentration in cybersecurity
  • At least one of the following certifications: CASP, GCIH, GCWN, GISF, GISP, GSSP, GICSP, GSSP, SEI, CISSP, CSSLP, SSCP, CCNP, CCNP Security, CCIE Security, CEH, ECSP, MCSE, RHCA, RHCE, VCP, VCAP, VCIX, VCDX, Splunk Enterprise Certified Architect
  • Experience installing, configuring, securing, and troubleshooting, RHEL, CentOS or Ubuntu Linux
  • Extensive automation experience with PowerShell and Shell Scripting for automating Linux installs
  • Experience mentoring junior personnel
  • Extensive knowledge of DELL (Power Edge) and other Enterprise Servers
  • Experience deploying and supporting IDPS
  • Experience deploying and supporting Full Packet Capture systems
  • Network experience and understanding with the following: TCP/IP, NIS, NFS, DNS, DHCP, FTP/TFTP, SSH, SFTP, ARP.
  • Experience with storage tools such as NAS (NFS, SAMBA, RAID 0/1/5/6/10) and SAN (iSCSI, FiberChannel)
  • Experience supporting Hyper Converged Infrastructure (HCI)
  • Cloud and VMWare skills - Understanding of cloud terminology, architecture, and tools to include: installing, provisioning and monitoring

Preferred Qualifications
  • Extensive knowledge of Ansible, Satellite, and VMWare ESXi/VCenter
  • Experience working in AWS and Azure
  • Experience with Suricata and Gigamon
  • Experience developing in Bash, Python, YAML, PowerShell scripts
  • Experience working in an Agile development environment.

External Referral Bonus:

External Referral Bonus $:

Potential for Telework:

Clearance Level Required:


Scheduled Weekly Hours:


Requisition Category:

Job Family:
Security Architecture and Engineering

Pay Range:

Company Information

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 31,000 employees support vital missions for government and commercial customers. Headquartered in Reston, Virginia, Leidos reported annual revenues of approximately $10.17 billion for the fiscal year ended December 29, 2017. (NYSE: LDOS) All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status.
Dice Id : SCNCAPI2
Position Id : R-00055014
Originally Posted : 2 months ago

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