Senior Cyber Network Engineer

Fiserv

Senior Cyber Network Engineer designing and securing enterprise network systems at Fiserv. Responsible for ensuring secure, scalable, and resilient connectivity across various environments.

Posted 5/3/2026full-timeAlpharetta • New Jersey, New York, Ohio, Texas • 🇺🇸 United StatesSenior💰 $127,500 - $204,000 per yearWebsite

Tech Stack

Tools & technologies

AnsibleAWSAzureCloudFirewallsGoogle Cloud PlatformPythonSwitchingTerraform

About the role

Key responsibilities & impact

Design, secure, and advance enterprise, cloud, and on‑prem network security capabilities
Define and maintain the security roadmap for enterprise and end‑user network security platforms
Serve as a subject matter expert in enterprise network technologies
Define, review, and assess security controls for on‑prem and hybrid network environments
Partner with Network Engineering teams to ensure secure design and operation
Deliver secure hybrid and public cloud connectivity
Provide cloud network security expertise across AWS, Azure, GCP
Develop and maintain reference architectures, standard configurations, implementation procedures, and automation
Leverage automation, orchestration, and AI‑driven capabilities to improve policy enforcement, threat detection, operational efficiency/response times across network security platforms

Requirements

What you’ll need

8+ years of experience in enterprise network and network security engineering roles
Deep expertise in large‑scale corporate network environments, including expert‑level knowledge of routing, switching, and core network protocols along with next‑generation firewalls, load balancers, network segmentation, and perimeter security architectures
Proven experience securing on‑prem, hybrid, and public cloud network environments
Strong background defining security controls, standards, and reference architectures for enterprise networks
Demonstrated experience designing and supporting client, partner, and external connectivity in regulated environments
Experience with infrastructure and security automation tools such as Terraform, Ansible, and Python
Proven experience leveraging AI‑enabled network or security platforms, analytics, or SOAR capabilities
Experience driving automation and standardization across network and security platforms
Bachelor’s degree in IT, Computer Science, IT Security, or a related field, and/or an equivalent combination of education, relevant experience, and/or military experience.

Benefits

Comp & perks

Health insurance
401(k) matching
Paid time off
Flexible work arrangements
Professional development opportunities

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

network securityroutingswitchingcore network protocolsnext-generation firewallsload balancersnetwork segmentationperimeter security architecturessecurity controlsautomation

Soft Skills

subject matter expertcollaborationcommunicationproblem-solvingleadership