Lead Firewall Engineer

D2 Technical Services; Town of Springfield (WI); On-site; USD 140,000 - 150,000; Full time

Benefits offered by this job

Health/Dental/Vision

401(k) match

Accrued PTO

Referral bonuses

Job summary

D2 Technical Services in Wisconsin is seeking a Lead Firewall Engineer to oversee the NSS Boundary Team and report to the Branch Chief of Cyber Technology Services. This senior role ensures QA compliance and meets SLAs across the service area.

Responsibilities include leading daily operations, designing security solutions with F5, Juniper SRX, and Palo Alto, and maintaining STIG/SRG baselines while generating briefings for leadership. CI polygraph and DoD certifications are required.

Qualifications

• Active TS/SCI clearance.
• 8+ years of related technical experience in network security technologies, tools, and techniques.
• 5+ years of experience with large-scale enterprise/global networks in a high paced diverse environment.
• Understanding DoD Architecture Framework and related DoD network architecture instructions.
• Experience leading a Firewall/Boundary Security Team in a similarly sized organization.
• Experience with DoW, DISA, IC standards and processes.
• Ability to obtain and maintain a CI polygraph and DoD certifications.

Responsibilities

• Serve as the focal point for all firewall tasks, operations, and projects.
• Lead, direct, and manage daily operations, troubleshooting, and maintenance of the NSS Boundary work center.
• Design and implement security solutions using F5, Juniper SRX, and Palo Alto for project-based requirements.
• Ensure systems meet STIG/SRG baselines and maintain configuration documentation.
• Monitor performance, logs, and configuration drift to mitigate issues.
• Provide written reports and oral briefings to contract and government leadership.
• Coordinate with stakeholders to ensure task completeness and customer satisfaction.

Skills

Firewall operations

Network security technologies

Troubleshooting

Team leadership

DoD network architecture

Education

BS or MS in Computer Science / Cyber Security

Tools

F5 platforms

Juniper SRX platforms

Palo Alto platforms

OCSP/revocation concepts

Job description

ACTIVE TS/SCI SECURITY CLEARANCE REQUIRED

D2 is looking for a Lead Firewall Engineer to oversee the NSS Boundary Team. This role will report directly to the Branch Chief of Cyber Technology Services. This position is responsible for maintaining compliance with quality assurance standards and ensuring service level agreements are met or exceeded within this service area.

Experience in reviewing, validating, and implementing requirements within enterprise Change Requests (CRQs) and determining impacts to network and cyber operations across the enterprise. This role is also responsible for providing technical oversight of troubleshooting efforts and solutions development executed by the subordinate team.

Responsibilities

• Serve as the focal point for all firewall tasks, operations, and projects
• Lead, direct, and manage execution of all daily operations, troubleshooting, and maintenance activities of the NSS Boundary work center.
• Design, implement Manage security solutions using F5, Juniper SRX, and Palo Alto for project-based requirements.
• Ensure systems, devices, and application under your responsibility and span of control meet applicable STIG/SRG and organizational configuration baselines
  • Lead regular compliance evaluations and audits
  • Develop, oversee, maintain, and enforce configuration management processes, Standard Operational Procedures (SOPs), and other documentation as needed/required.
• Monitor platform performance, logs, software version(s), and configuration drift to identify and mitigate performance, compliance, and security issues.
• Develop and maintain network architecture diagrams, inventories, and licensing status for the various capabilities within the scope of the team.
• Provide written reports and oral briefings to contract and government leadership
• Coordinate issues with the appropriate stakeholders to ensure task completeness and overall customer satisfaction.
• Provide recommendations on newly submitted customer requests.
• Evaluate and report on new/emerging network/communication technologies to enhance capacity, performance and reliability of the network.
• Evaluate and recommend changes and/or technology upgrades to address performance, standardization and industry best practices.
• Conduct performance assessments, mentor, and coach personnel.

Qualifications

Required

• Security Clearance: Active TS/SCI
• 8+ years related technical experience network security technologies, tools, and techniques
• 5+ years’ experience with large-scale enterprise/global networks in a high paced diverse environment
• Understanding and experience with the DoD Architecture Framework and other key DoD network architecture and strategic planning instructions
• Demonstrated knowledge in planning, directing, and managing a Firewall / Boundary Security Team in an organization similar in size
• Firewall experience within the DoW or IC
• Demonstrated knowledge of implementation of Perimeter and Internal Firewalls (both physical and virtual contexts)
• Demonstrated advanced experience in managing baseline configurations across numerous firewalls
• Demonstrated advanced experience in evaluating rules to ensure maximum security while minimizing redundancy and processing overhead
• Demonstrated experience with researching and fielding new and innovative firewall technology
• Experience with F5 platforms/technologies (APM, AFM, SSLO, etc.)
• Experience with Palo Alto platforms/technologies (Threat Prevention, Wildfire, URL Filtering, Global Protect)
• Experience with Juniper SRX platforms/technologies
• Experience with Online Certificate Status Protocol OCSP revocation
• Familiar with DoD PKI, Kerberos, LDAP, Active Directory, Authentication (SAML, OAuth)
• Ability to describe and troubleshoot TLS/SSL handshake/connection issues
• Network design, engineering, and implementation (Advanced Level)
• Creation of network related Rough Order Magnitude (ROM) equipment lists and costing, Level of Effort (LOE) estimation for labor
• Understanding of DoW, DISA, and IC standards and processes
• Ability to work weekends and evening hours as needed
• Ability to obtain and maintain a CI polygraph
• S6DoD 8140.01 and DoD 8570.01-M IAT Level II compliant certification (current). Must be able to successfully obtain/maintain CSSP Infrastructure Support certification within 120 days.

Desired

• BS or MS degree in Computer Science, Cyber Security, Network Security or related field
• F5 Networks certifications
• Juniper JNCIS/JNCIP, Palo Alto PCNSE (or equivalent)

Additional Information

• All your information will be kept confidential according to EEO guidelines.
• Compensation is unique to each candidate and relative to the skills and experience they bring to the position. The salary range for this position is typically $140-$150k. This does not guarantee a specific salary as compensation is based upon multiple factors such as education, experience, certifications, and other requirements, and may fall outside of the above-stated range.
• Highlights of our benefits include Health/Dental/Vision, 401(k) match, Accrued PTO, STD/LTD/Life Insurance, Referral Bonuses, professional development reimbursement, and more!

D2 Technical Services is committed to a merit-based recruitment process and encourages applications from all qualified individuals. As a Veteran-Owned Small Business, we particularly welcome applications from veterans who have the requisite skills and experience. Job applicants that are interested in one of our openings and may require a reasonable accommodation to participate in the job application or interview process, should contact us to request an accommodation.