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Senior Network Firewall Engineer Jobs in Missouri

CACI

Senior Firewall Engineer

Saint Louis, MO · Hybrid

$75K - $158K/yr

Senior Firewall Engineer Job Category: Information Technology Time Type: Full time Minimum ... The Opportunity As a member of the TCS Network Security Services (NSS) team, you will work with ...

CACI

Lead Firewall Engineer

Arnold, MO · On-site

$42.25 - $56.75/hr

Lead Firewall Engineer Job Category: Information Technology Time Type: Full time Minimum Clearance ... Develop and maintain network architecture diagrams, inventories, and licensing status for the ...

CACI International, Inc.

Lead Firewall Engineer

Arnold, MO · On-site

$42.25 - $56.75/hr

Lead Firewall Engineer Job Category: Information Technology Time Type: Full time Minimum Clearance ... Active TS/SCI * 8+ years related technical experience network security technologies, tools, and ...

CACI

Lead Firewall Engineer with Security Clearance

Arnold, MO · On-site

$42.25 - $56.75/hr

Lead Firewall Engineer Job Category: Information Technology Time Type: Full time Minimum Clearance ... Active TS/SCI * 8+ years related technical experience network security technologies, tools, and ...

Kohl's

$53.75 - $70.25/hr

Role Specific Information About the Role The Senior Network Engineer, Network Security is a hands ... The engineer will lead technical delivery for firewalls, remote access, SASE, network segmentation ...

Hubbell Incorporated

Senior Engineer, Network

Cuba, MO · On-site

$92K - $126K/yr

The position requires deep handson expertise in routing, switching, wireless, firewalls, and ... network architecture. This is an excellent opportunity for a senior engineer who enjoys owning ...

Hubbell Incorporated

Senior Engineer, Network

Fenton, MO · On-site

$99K - $136K/yr

The position requires deep handson expertise in routing, switching, wireless, firewalls, and ... network architecture. This is an excellent opportunity for a senior engineer who enjoys owning ...

Hubbell Incorporated

Senior Engineer, Network

Centralia, MO · On-site

$87K - $119K/yr

The position requires deep hands-on expertise in routing, switching, wireless, firewalls, and ... standards and network architecture. This is an excellent opportunity for a senior engineer who ...

Hubbell Incorporated

Senior Engineer, Network

Centralia, MO · On-site

$87K - $119K/yr

The position requires deep handson expertise in routing, switching, wireless, firewalls, and ... network architecture. This is an excellent opportunity for a senior engineer who enjoys owning ...

Meridian Systematics

Sr Network Engineer

Saint Louis, MO · On-site

$110K - $136K/yr

The Senior Network Engineer delivers Tier III SME-level support across customer Data Center networks, application delivery platforms, and network security environments. This role spans the full ...

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Senior Network Firewall Engineer information

What does a senior network firewall engineer do?

A Senior Network Firewall Engineer is responsible for designing, implementing, managing, and maintaining network firewall systems to protect an organization’s data and IT infrastructure from unauthorized access and cyber threats. They analyze security risks, configure firewall rules, monitor network traffic, and ensure compliance with security policies. Additionally, they troubleshoot firewall issues, provide technical guidance to junior staff, and stay updated on the latest security technologies and threats.

What are the key skills and qualifications needed to thrive as a senior network firewall engineer, and why are they important?

To thrive as a Senior Network Firewall Engineer, you need deep expertise in network security, firewall configuration, and troubleshooting, usually supported by a degree in computer science or a related field and several years of experience. Proficiency with firewall platforms (such as Palo Alto, Cisco ASA, or Fortinet), network monitoring tools, and certifications like CISSP or CCNP Security are typically required. Strong analytical thinking, attention to detail, and effective communication help you excel in diagnosing issues and collaborating with cross-functional teams. These skills ensure the secure and reliable operation of enterprise networks, protecting critical data and minimizing security risks.

What are some common challenges faced by senior network firewall engineers when managing large-scale enterprise environments?

Senior Network Firewall Engineers often encounter challenges such as balancing robust security with network performance, managing complex rule sets across multiple devices, and ensuring seamless policy updates without disrupting business operations. They must also stay current with evolving cyber threats and compliance requirements, which can require frequent adjustments to firewall configurations. Effective collaboration with security operations, IT infrastructure, and compliance teams is essential to address these challenges and maintain a secure, high-performing network.

What is the difference between Senior Network Firewall Engineer vs Network Security Analyst?

AspectSenior Network Firewall EngineerNetwork Security Analyst
CertificationsCCNP, CISSP, Cisco ASA certificationsCISSP, CompTIA Security+, GIAC certifications
Work EnvironmentDesigning, implementing, managing firewalls and security infrastructureMonitoring, analyzing security threats, incident response
Employer & Industry UsageIT departments, cybersecurity firms, large enterprisesSecurity teams, government agencies, financial institutions

The Senior Network Firewall Engineer primarily focuses on configuring and maintaining firewall systems to protect network perimeters, while the Network Security Analyst monitors security events and responds to threats. Both roles require similar certifications and often work within the same industry environments, but their core responsibilities differ in scope and daily tasks.

What are the most commonly searched types of Network Firewall Engineer jobs in Missouri?

The most popular types of Network Firewall Engineer jobs in Missouri are:

What are popular job titles related to Senior Network Firewall Engineer jobs in Missouri?

For Senior Network Firewall Engineer jobs in Missouri, the most frequently searched job titles are:

What job categories do people searching Senior Network Firewall Engineer jobs in Missouri look for?

The top searched job categories for Senior Network Firewall Engineer jobs in Missouri are:

What cities in Missouri are hiring for Senior Network Firewall Engineer jobs?

Cities in Missouri with the most Senior Network Firewall Engineer job openings:

Senior Network Firewall Engineer jobs near you
Infographic showing various Senior Network Firewall Engineer job openings in Missouri as of August 2026, with employment types broken down into 1% As Needed, 79% Full Time, 15% Part Time, and 5% Contract. Highlights an 92% Physical, 3% Hybrid, and 5% Remote job distribution.

Check Point Firewall Engineer with Fortinet

SRI Tech Solutions

O Fallon, MO • On-site

$44.75 - $59.75/hr

Other

This job post has expired 1 day ago. Applications are no longer accepted.

Job description

Role Summary

The Network Security Engineering & Architecture Lead is responsible for designing, implementing, and supporting enterprise network security solutions that protect critical infrastructure, applications, and data. This role provides advanced engineering, architecture, and operational support across firewalls, network segmentation, DNS, DHCP, Infoblox, Akamai, access management, and related security technologies.

The individual will drive secure network design, security policy governance, technology modernization, regulatory compliance, and continuous improvement initiatives while ensuring the enterprise network remains resilient, scalable, and secure across on-premises, cloud, and hybrid environments.

Key Responsibilities

Network Security Architecture & Design

  • Design and implement secure enterprise network architectures supporting business, cloud, and digital transformation initiatives.
  • Develop network security standards, reference architectures, and governance frameworks.
  • Lead security assessments and architecture reviews for new projects, applications, and infrastructure deployments.
  • Architect segmentation strategies using firewalls, VRFs, VLANs, SDN, micro-segmentation, and zero-trust principles.
  • Create scalable and resilient network designs supporting high availability, disaster recovery, and business continuity requirements.
  • Collaborate with enterprise architecture, cloud, application, and cybersecurity teams to align security controls with business objectives.

Firewall Engineering & Security Policy Management

  • Design, deploy, and support next-generation firewall solutions.
  • Manage firewall policy lifecycle including:
    • Rule creation
    • Access reviews
    • Policy optimization
    • Risk assessment
    • Compliance validation
  • Implement and maintain security controls for:
    • Data centers
    • Cloud environments
    • DMZ networks
    • Internet-facing applications
  • Conduct firewall health checks and security posture reviews.
  • Review and implement network security changes while ensuring adherence to security standards and change management processes.
  • Investigate and remediate firewall-related incidents, vulnerabilities, and audit findings.

Preferred Firewall Platforms

  • Palo Alto Networks
  • Check Point
  • Cisco Firepower
  • Fortinet
  • Juniper SRX
  • Azure Firewall
  • AWS Network Firewall

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