Requisition ID R-10371148 Date posted 09/18/2025 End Date 10/02/2025 City Alpharetta State/Region Georgia Country United States Additional Locations Berkeley Heights, New Jersey; Omaha, Nebraska Location Type Onsite

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

WAF Security Engineer

What does a successful WAF Security Engineerdo at Fiserv?

You will Work in a dynamic and challenging environment where your focus is on reducing the potential impact of threats to Internet facing web application systems. You will frequently interact with Security Assessment, Security Operations and Cyber Security Incident Response Teams working together to identify ongoing threats to the application. You will develop protections for web applications utilizing state of the art cyber technologies (Web Application Firewalls, Network Firewalls, Intrusion Prevention, Network Traffic Scrubbing ) protecting operational applications in real-time. While stopping bad actors in their tracks, this role will sharpen your skills. Skills in high demand by Global Cyber Security & Fraud teams.

What you will do:

• Maintain and operate Web Application Firewall Configurations.
• Perform false positive analysis on WAF events.
• Be comfortable driving work efforts outside business-hours, when necessary, as part of on-call rotation schedule.
• Act as a front-line and escalation interface to the business, reviewing trouble tickets and executing the required actions.
• Be Self-motivated to identify requirements for projects and process improvements.

What you will need to have:

• 10+ years related IT and cyber protection experience.
• Strong understanding of cyber threats as related to Internet facing web applications.
• Experience with utilizing NIST CVE data relating to web application vulnerabilities to develop threat response actions utilizing OSI Layer 4 through 7 deep inspections.
• Experience with threat analysis of web application network traffic protocols and patterns .
• Experience using scripting or automation to reduce team workload on repetitive tasks and communicating with CISO/CIO/CTO level leadership.
• CISSP or other professional cyber certification desirable.
• Bachelor’s degree in cyber security, Computer Science, Engineering, Mathematics or an equivalent combination of education, work, or military experience.
• Expert knowledge of and experience with maintaining cyber technologies that can protect operational web application systems, such as:
  • Signal Sciences WAF / F5 Big IP Application Security Manager.
  • F5 Local Traffic Manager / F5 Silverline WAF & Denial of Service (DDOS) Scrubbing systems.
  • F5 Distributed Cloud WAF / Radware WAF.

What would be great to have:

• Scripting skills (Python, Bash).
• Knowledge of TCL and iRules.
• Strong understanding of web application vulnerabilities.
• Strong understanding of HTTP protocol and what HTTP application traffic looks like.

#LI-RM1

Salary Range

$109,000.00 - $182,400.00

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 AskHR.US@fiserv.com. 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.

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