Senior cyber network engineer

Calling all innovators - find your future at Fiserv.

We're 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, we're involved. If you want to make an impact on a global scale, come make a difference at Fiserv.

Job Title

Senior Cyber Network Engineer – NDR

What does a successful Senior Cyber Network Engineer – NDR do at Fiserv?

You will lead the planning, implementation, and continuous improvement of Network Detection and Response (NDR) capabilities across Fiserv’s global infrastructure. You will be responsible for engineering and managing advanced network threat detection platforms, integrating telemetry sources, and enabling proactive threat hunting. This role requires close collaboration with Cyber Architecture, CSIRT, Cloud Security, and Platform Engineering teams to deliver secure, scalable, and resilient network observability solutions. Reporting to the VP of Network Security, you will play a critical role in defending Fiserv’s digital assets against evolving network-based threats.

What You Will Do

• Engineer, deploy, and maintain NDR platforms—primarily ExtraHop Reveal(x) including directing sensor placement, data ingestion, dashboard development, and alert tuning.
• Integrate ExtraHop telemetry with SIEM and SOAR platforms to enhance threat correlation and automated response workflows.
• Lead network-based threat detection initiatives, including behavioral analytics, lateral movement detection, and encrypted traffic analysis and collaborate with CSIRT to develop and refine detection logic, playbooks, and incident response procedures based on NDR insights.
• Develop automation scripts (Python, PowerShell, Perl) to streamline deployment, enrichment, and monitoring of NDR and network security tools and Conduct network surveys and planning for sensor coverage, traffic visibility, and onboarding of new or acquired business units.
• Define and report KPIs to monitor compliance, performance, and effectiveness of NDR controls and threat detection capabilities.
• Respond to RFIs, internal audits, and regulatory requests with detailed documentation and analysis of network observability and NDR posture.
• Support disaster recovery planning, risk management, and internal control processes.
• Mentor and manage engineering resources supporting the NDR function and broader network security initiatives.
  
  

What You Will Need To Have

• 10+ years in Information Security, preferably within financial or regulated industries.
• 8+ years in cybersecurity trends, threat detection, and infrastructure protection.
• 5+ years of hands-on experience with NDR platforms and network-based threat detection methodologies.
• 3+ years of direct experience with ExtraHop Reveal(x) or similar NDR platforms.
• 8+ years in large-scale corporate network environments.
• 5+ years in network security technologies (Firewalls, NGFWs, IDS/IPS, proxies).
• 3+ years in cloud platforms (AWS, Azure) and hybrid infrastructure.
• Strong scripting ability (Python, PowerShell, Perl) for automation and data enrichment.
• Working knowledge of Linux/Unix administration, SSL certificate management, and DNS.
• Bachelor’s degree in a relevant field or equivalent combination of training and experience.
  
  

What Would Be Great To Have

• Network and Security Certifications (e.g., CCNP, CISSP, CEH).
• Hands-on experience with NDR platforms such as ExtraHop RevealX, Arista NDR, Darktrace, or Vectra AI.
  
  

Important Info About This Role

• We’re better together! This role is fully on-site
• This is a full-time, direct-hire position, and no contract options or unsolicited agency submissions will be considered
• 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 for this role
  
  

Salary Range

$127,500.00 - $204,000.00

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 individual's status as a veteran.

For incentive eligible associates, the successful candidate is eligible for an annual incentive opportunity which may be delivered as a mix of cash bonus and equity awards in the Company’s sole discretion.

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 [email protected]. Please note our AskHR representatives do not have visibility to your application status. Current associates who require a workplace accommodation should refer to Fiserv’s Disability Accommodation Policy for additional information.

Note To Agencies

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

Warning About Fake Job Posts

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.