Network Security-NDR

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Were Fiserv a global leader in Fintech and payments and we move money and information in a way that moves the world. We connect financial institutions corporations merchants and consumers to one another millions of times a day - quickly reliably and securely. Any time you swipe your credit card pay through a mobile app or withdraw money from the bank were involved. If you want to make an impact on a global scale come make a difference at Fiserv.

Job Title

About your role:

In this role we will rely on you to engineer implement and support network security controls that protect enterprise infrastructure across on-premises cloud and hybrid environments. You will help strengthen network defenses improve visibility into traffic and threats and support secure resilient connectivity across the organization.

This role requires strong hands-on experience in network security engineering operational support and continuous improvement. The ideal candidate brings practical expertise with enterprise security technologies strong troubleshooting ability and experience using ExtraHop to enhance network visibility and threat detection.

What youll do:

• Engineer implement and support enterprise network security solutions while partnering with infrastructure cloud architecture and security operations teams to maintain secure connectivity.
• Develop custom applications integrations and automation services that enhance Network Detection and Response (NDR) capabilities improve network visibility and reduce analyst workload.
• Build and continuously improve detection analytics enrichment pipelines and automated response workflows to identify anomalous and malicious network activity.
• Create automated mechanisms to collect normalize enrich and analyze network telemetry to improve detection fidelity and operational effectiveness.
• Deploy maintain and scale security automation solutions using modern software engineering DevOps Infrastructure-as-Code and CI/CD practices; Administer optimize and maintain security technologies including firewalls VPNs IDS/IPS network segmentation controls and secure access platforms.
• Utilize ExtraHop and other monitoring tools to analyze network traffic investigate anomalies identify suspicious activity and improve overall network visibility. Monitor and analyze network activity and security events to support threat detection incident response forensic investigations and operational troubleshooting.
• Support vulnerability management risk assessments audits compliance activities and remediation efforts related to network security controls; Develop engineering documentation operational procedures runbooks and standards.

Experience youll need to have:

• Hands-on expertise with enterprise firewalls (Palo Alto Check Point Cisco Firepower Fortinet) including deployment administration and troubleshooting.
• Strong network security engineering experience with firewall policy management rule optimization and network segmentation.
• Hands-on experience with ExtraHop or NDR for network traffic analysis anomaly detection threat investigation and operational visibility.
• Proficiency in TCP/IP networking fundamentals including routing switching DNS DHCP and load balancing.
• Experience with VPN technologies supporting secure remote access and site-to-site connectivity.
• Knowledge of IDS/IPS technologies network threat detection and traffic analysis methodologies.
• Strong troubleshooting skills using packet capture and analysis tools to investigate network and security incidents.
• Understanding security controls across on-premises cloud and hybrid environments including segmentation and Zero Trust principles.

Experience that would be great to have:

• 5 years experience with AI coding tools such as GitHub Copilot Microsoft Copilot Cursor or Claude Code.
• Exposure to AI agents workflow automation and process orchestration.
• Experience developing APIs integrations or automation solutions and familiarity with DevOps CI/CD Infrastructure-as-Code and Git-based development.
• Understanding of cybersecurity and cloud technologies including firewalls Zero Trust Azure AWS or GCP.
• Familiarity with SIEM platforms centralized logging and event correlation to support network security monitoring and investigations.
• Experience with network access control (NAC) micro-segmentation and Zero Trust security architectures and knowledge of security frameworks such as NIST ISO 27001 CIS Controls or similar governance and compliance standards.
• Scripting and automation experience using Python PowerShell or Bash to improve operational efficiency and security workflows.
• Experience with change management documentation and cross-functional collaboration with incident response infrastructure cloud and architecture teams.

How youll work:

This role is on-site Monday through Friday. Fiserv considers in-person collaboration to be an essential part of this role as in-person office experiences help you with your overall onboarding experience and leads to stronger productivity.

Travel:

Approximately 10% travel off-site or to other office locations may be required.

Sponsorship:

You must currently possess valid and unrestricted U.S. work authorization to be considered for this role. Individuals with temporary visas including but not limited to F-1 (OPT CPT STEM) H-1B H-2 or TN or any candidate requiring sponsorship now or in the future will not be considered.

#LI-RM1

Salary Range

These pay ranges apply to employees in New Jersey and New York. Pay ranges for employees in other states may differ.

It is unlawful to discriminate against a prospective employee due to the individuals status as a veteran.

Thank you for considering employment with Fiserv. Please:

• Apply using your legal name
• Complete the step-by-step profile and attach your resume (either is acceptable both are preferable).

Our commitment to Equal Opportunity:

Fiserv is proud to be an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race color religion national origin gender gender identity sexual orientation age disability protected veteran status or any other category protected by law.

If you have a disability and require a reasonable accommodation in completing a job application or otherwise participating in the overall hiring process please contact. Please note our AskHR representatives do not have visibility to your application status. Current associates who require a workplace accommodation should refer to Fiservs Disability Accommodation Policy for additional information.

Note to agencies:

Fiserv does not accept resume submissions from agencies outside of existing do not send resumes to Fiserv associates. Fiserv is not responsible for any fees associated with unsolicited resume submissions.

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Please be aware of fraudulent job postings that are not affiliated with Fiserv. Fraudulent job postings may be used by cyber criminals to target your personally identifiable information and/or to steal money or financial information. Any communications from a Fiserv representative will come from a legitimate Fiserv email address.