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Adaptive Solutions Group
http://www.adaptivesg.com
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Network Engineer III
1901 Chouteau Ave St. Louis, MO 63103 US | Work from home flexibility TELECOMMUTE US
Posted: 01/22/2026
2026-01-22
2026-03-11
Employment Type:
Contract
Job Category: Infrastructure Technologies
Job Number: 17412
Job Description
Network Security Engineer
Adaptive Solutions Group is a premier provider of information technology personnel. We provide a variety of technical professionals available for contract, contract to hire, or direct placement positions to companies in and around the St. Louis and Kansas City areas.
We are seeking a Network Security Engineer to join a client team supporting enterprise network security operations in a hybrid work environment within the Midwest region.
Responsibilities
Adaptive Solutions Group offers a competitive compensation and benefits package that includes medical, dental, short term and long term disability, life insurance coverage, 401k, paid vacation, and paid holidays.
Adaptive Solutions Group is a premier provider of information technology personnel. We provide a variety of technical professionals available for contract, contract to hire, or direct placement positions to companies in and around the St. Louis and Kansas City areas.
We are seeking a Network Security Engineer to join a client team supporting enterprise network security operations in a hybrid work environment within the Midwest region.
Responsibilities
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Design, implement, and maintain secure network architectures to protect enterprise systems and data.
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Configure, manage, and support firewall technologies and network security appliances.
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Perform routine security operations including firewall rule management, code upgrades, and system maintenance.
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Monitor security logs, investigate potential threats, and respond to security incidents as needed.
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Conduct vulnerability assessments and assist with remediation activities.
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Support incident response efforts, including investigation and documentation.
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Collaborate with infrastructure and application teams to embed security best practices across environments.
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Assist with security audits, policy enforcement, and compliance with established security frameworks.
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Participate in on-call support rotations as required.
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Document configurations, procedures, and operational processes.
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Perform other duties as assigned.
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Strong background in network engineering with a focus on security.
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Hands-on experience with enterprise firewall platforms, including Palo Alto Networks and Cisco ASA.
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Experience performing firewall rule changes, upgrades, and ongoing operational support.
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Solid understanding of network protocols, TCP/IP, VPNs, and intrusion detection or prevention systems.
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Ability to analyze logs and troubleshoot security related issues.
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Strong analytical, problem-solving, and troubleshooting skills.
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Excellent verbal and written communication skills.
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Ability to work independently and as part of a collaborative team.
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Authorized to work in the United States without current or future sponsorship requirements.
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Bachelor’s degree in Computer Science, Information Technology, or a related field, or equivalent practical experience.
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Security related certifications such as CompTIA Security+, CISSP, CCNP Security, or vendor specific certifications.
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Experience supporting large scale or complex enterprise environments.
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Familiarity with vulnerability management tools and endpoint security platforms.
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Experience working in hybrid or on-call support models.
Adaptive Solutions Group offers a competitive compensation and benefits package that includes medical, dental, short term and long term disability, life insurance coverage, 401k, paid vacation, and paid holidays.
Job Requirements
Network Security
