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Firewall Network EngineerGeneral Dynamics Land Systems USSterling Heights, Michigan, United States

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Firewall Network Engineer

General Dynamics Land Systems US
  • US
    Sterling Heights, Michigan, United States
  • US
    Sterling Heights, Michigan, United States

About

Location: Sterling Heights, MI, United States Date Posted: Jun 15, 2026 Category: Information Technology Requisition ID: 14759 Career Level: Mid-Career Remote Work Options: On-Site Clearance Type: Ability to obtain security clearance
Description The Firewall Engineer is responsible for designing, implementing and maintaining secure network boundaries that protect both corporate IT and plant floor OT systems. The role ensures high availability, strong segmentation, and compliance across multiple manufacturing and engineering sites where uptime, safety and reliability are critical.
Responsibilities
Design, deploy and maintain enterprise firewalls (Palo Alto) across plants data center and cloud.
Design and implement IT/OT/IIoT segmentation, Zero Trust principles and least-privilege access.
Create, review, optimize and retire firewall rules to reduce risk and technical debt.
Partner with controls engineers, MES/SCADA teams and Plant IT to secure PLCs, robots, sensors and industrial controls.
Investigate firewall related alerts, blocks, traffic and anomalies; support SOC and IR teams.
Maintain HA pairs, clustering, redundancy and failover for mission critical production networks.
Use Panorama to monitor health, performance and security posture.
Install,configure,andmaintainCitrixNetscalerorADCappliancesandWAFcomponents.
DevelopandenforceWAFsecuritypolicies,rulesets,andsignaturestoprotectwebapplications.
ContinuouslymonitorWAFlogs,alerts,andsystemperformancetodetectanomaliesorpotentialattacks.
Investigate and resolve WAF events, including SQL injection, cross-site scripting (XSS), and other OWASP Top 10 vulnerabilities.
Diagnoseandresolvetechnicalissuesrelatedtotrafficrouting,SSLcertificates,applicationdelivery,andintegrationwithbackendsystems.
Execute changes following ITIL processes, maintenance windows, and plant production schedules.
Ensure firewall configurations meet international standards and external requirements (ISO 27001, NIST, TISAX, CMMC)
Work with integrators, service providers and equipment vendors during expansions and upgrades.
Position Requirements Formal Education & Certification
Bachelor of Science degree in Computer Science, Management Information Systems, or related is preferred.
Experience will be considered in lieu of degree.
10 years of experience as a network engineer delivering infrastructure design and operational excellence.
Certifications in Palo Alto or NetScaler networking products are preferred.
Knowledge & Experience
Experience managing Palo Alto Networks security appliances and enterprise network security.
Experience in supporting enterprise WAF solutions, preferably Citrix NetScaler/AppFirewall.
Experience with design, development, and deployment of enterprise wide Zero Trust strategies in alignment with organizational objectives and compliance standards (NIST SP 800-207).
Stronge experience with Firewalls, VPNS, NAT, routing and secure connectivity.
Understanding of OT protocols (Ethernet/IP, Profinet, Modbus/TCP) and plant floor networks.
Strong understanding of HTTP/HTTPS protocols, web application security, and OWASP Top 10 threats.
Experience with SSL/TLS, load balancing, and application delivery concepts.
Proven ability to analyze logs and troubleshoot network or WAF-related issues.
Ability to automate audits, configs, and reporting using Python, Ansible or vendor APIs.
Familiarity with cloud firewalls and hybrid connectivity.
Knowledge of security frameworks such as CMMC, TISAX, etc.
Knowledge of applicable data privacy practices, regulations and laws.
Personal Attributes
Strong interpersonal, written, and oral communication skills.
Able to conduct research into networking issues and products as required.
Ability to present ideas in user-friendly language.
Highly self-motivated and directed, with keen attention to detail.
Proven analytical and problem-solving abilities.
Able to effectively prioritize tasks in a high-pressure environment.
Experience working in a team-oriented, collaborative environment.
Work Conditions
9/80 work week and on-call availability
5% business travel
Sitting for extended periods of time.
Dexterity of hands and fingers to operate a computer keyboard, mouse, power tools, and to handle other computer components.
Lifting and transporting moderately heavy objects, such as switches, routers, firewalls and UPS’s.
Ability to obtain security clearance.
Benefits General Dynamics Lands Systems provides a competitive compensation package, site specific flexible work schedules, 401(k) with Company Match; Bonus Eligibility, Employee Development Opportunities, Tuition Reimbursement, On-site Amenities, and comprehensive Medical/Dental/Vision Insurance.
As an Equal Opportunity Employer, General Dynamics Land Systems (“GDLS”) provides all persons with equal opportunity and access to all aspects of employment process, without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, marital status, age, disability, status as a protected veteran, or membership in any group protected by federal, state, or local anti-discrimination laws. GDLS also is committed to providing reasonable accommodations to individuals with disabilities and disabled veterans. If, due to a disability, you need an accommodation to search or apply for an opportunity with GDLS, please call 586-825-4000 or send an e‑mail to [email protected] for assistance and let us know the nature of your request and your contact information.
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  • Sterling Heights, Michigan, United States

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  • English
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