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F5 Security Engineer - TS​/SCI CI Poly

Job in San Antonio, Bexar County, Texas, 78208, USA
Listing for: ENS Solutions, LLC
Full Time position
Listed on 2025-12-01
Job specializations:
  • IT/Tech
    Systems Engineer, Cybersecurity, Cloud Computing, Network Engineer
Job Description & How to Apply Below
Position: F5 Security Engineer - Active TS/SCI with CI Poly

Overview

F5 Security Engineer - Active TS/SCI with CI Poly

Responsibilities
  • Participate in the development and support of customer technical requirements
  • Champion a collaborative, team-based environment, sharing standard methodologies and success and building positive relationships
  • Plan, design, develop, implement and operate F5 products such as LTM, ASM, BIG-IQ and APM
  • Manage the configuration on multiple physical and virtual F5 devices across multiple data centers
  • Develop scripts and tools to automate configuration of a large number of network security devices distributed across multiple data centers
  • Propose and implement system enhancements to improve performance and reliability of the network security infrastructure
  • Apply capacity planning configuration changes as demanded by the business
  • Address performance, scalability, and service architecture administration issues
  • Design, install, configure, maintain network security services, equipment and devices
  • Plan and support network security infrastructure
  • Provide clear technical documentation and written procedures for issues identified and addressed
  • Monitor and troubleshoot platform and OS-based problems, network security infrastructure and connectivity issues
  • Perform launch testing for new software releases and the introduction of new features
  • Coordinate equipment orders including physical or virtual appliances, as well as upgrading, monitoring, testing and servicing the systems as needed
  • Demonstrate knowledge of a broad range of technology towers such as Storage, Virtualization, Intel, Networking, Data Center Migration and Disaster Recovery
  • Knowledge of risk and controls landscape, ensuring company-wide standards are met
  • Participate in change and incident management
  • Anticipate potential problems and act to minimize the impact on the project or unit
  • Collaborate with different technology towers to achieve common goals
Qualifications
  • Bachelor s degree in computer science, information systems, telecommunications, or an engineering-focused field
  • Active TS/SCI clearance and willingness to obtain a CI Poly
  • 5+ years of relevant F5 experience with F5 LTM, ASM, BIG-IQ, and/or APM administration and life cycle management, including experience with advanced iRule creation and troubleshooting
  • Ability to handle multiple complex F5 configurations and deployments at once
  • Understanding of networking at all OSI layers; experience with web application technologies
  • Experience deploying, managing, and troubleshooting network systems, switching, and routing protocols such as TCP/IP, MPLS, OSPF, BGP, SDN, and 802.1x
  • Experience managing and troubleshooting DNS, DHCP, IPAM, and NTP in a large multi-site environment
  • Ability to manage multiple work streams simultaneously
  • Customer-centric mindset with excellent verbal and written communication skills
  • Hands-on experience with Python and APIs
  • Self-driven with the ability to manage workload without direct supervision
  • F5 201 certification
  • 8570 IAT Level II Certification required
Preferred Skills/Qualifications
  • Experience with Infoblox DDI, Microsoft DNS, Dyn, VMware Automation products (vRO, vRA)
Benefits
  • Essential Network Security (ENS) Solutions, LLC is a service-disabled veteran owned, IT consulting firm
  • Free Platinum-Level Medical/Dental/Vision coverage, 100% paid for by ENS
  • 401k Contribution from Day 1
  • PTO + 11 Paid Federal Holidays
  • Long & Short Term Disability Insurance
  • Group Term Life Insurance
  • Tuition, Certification & Professional Development Assistance
  • Workers  Compensation
  • Relocation Assistance
Seniority level
  • Mid-Senior level
Employment type
  • Full-time
Job function
  • Other
Industries
  • IT Services and IT Consulting

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