Jobs and Careers
FI

Application Support Engineer - Sr

Fiserv
United Statesfull_timeVerifiedPosted 2 Dec 2025
💰 $134,400/yr($79,000/yr$134,400/yr)

About the role

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

Application Support Engineer - Sr

About your role:
Fiserv is looking for a talented Application Support Engineer Senior to provide technical production support, managing/troubleshooting, deploying customer care applications, and upcoming technology needs like cloud migration etc. We are committed to providing exceptional service and support to our clients. As an Application Support - Sr, you will be part of a dedicated team ensuring the smooth operation and maintenance of critical business applications. This role involves diagnosing and resolving technical issues, providing guidance to end-users, and collaborating with various teams to improve application performance and reliability. In addition, diagnosing and fixing operational issues with our high-volume transaction processing applications, products, and platforms.

What you'll do:

  • Provide expert-level support for business applications, ensuring maximum uptime and performance
  • Troubleshoot and resolve complex application issues, collaborating with development teams as needed
  • Monitor application performance and lead initiatives to improve efficiency and reliability
  • Document support activities, maintain detailed logs, and develop user guides and training materials
  • Participate in an on-call rotation where you will work in a team environment as well as independently to resolve issues and triage & resolve client requests and incidents
  • Analyze internal alerts coming from various monitoring tools like Splunk, Sitescope, and Dynatrace
  • Analyze code and participate in root cause analysis
  • Work closely with product development teams to review operational readiness of production changes, release deployments, and validation

Experience you'll need to have:

  • 3 years of experience in Cloud Technologies like Azure
  • 5+ years of experience in application support in Microsoft technologies (C#, .Net) and/or Java technologies
  • 2+ years of experience in SQL databases
  • 2+ years of experience in troubleshooting and resolving technical issues
  • 4+ years of an equivalent combination of educational background, related experience, and/or military experience
  • Experience with multi-tier architecture applications
  • Strong troubleshooting and problem-solving skills to identify and resolve application issues
  • Bachelor’s degree required; relevant, equivalent work experience may be substituted for degree requirement

Experience that would be great to have:

  • Experience with Service Now for Incident, Case, Problem and Change Management
  • Familiarity with monitoring tools like Splunk, Dynatrace
  • Familiarity with scripts using Python, Powershell, Linux/Unix Shell scripting for automating middleware maintenance.
  • Familiarity with FTP concerts and other tools like Control-M

How you’ll work:

  • Fiserv emphasizes in-person collaboration to help you grow your career while shaping the future of fintech; this role is on-site Monday through Friday
  • This role requires being on-call during non-standard and/or overnight hours on a rotational basis

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 for this role

Salary Range

$79,000.00 - $134,400.00

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.

This position is not eligible for an annual incentive opportunity and is also not eligible to earn commissions.

Thank y

Apply for this role

Generate a tailored application kit with a matched cover letter, interview prep, and CV highlights — in under 60 seconds.

Apply Now →Generate Application Kit

Free account required — sign up in 30s

Company

Fiserv

View company profile →