Senior Application Support Engineer

You deserve to do what you love, and love what you do – a career that works as hard for you as you do. At Fiserv, we are more than 40,000 #FiservProud innovators delivering superior value for our clients through leading technology, targeted innovation and excellence in everything we do. You have choices – if you strive to be a part of a team driven to create with purpose, now is your chance to Find your Forward with Fiserv.

Responsibilities

Requisition ID R-10359349 Date posted 09/22/2025 End Date 11/21/2025 City Berkeley Heights State/Region New Jersey Country United States Additional Locations 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

Senior Application Support Engineer

About your Role:

In this role, you will help build the technology responsible for our core services with a focus in the AWS (Amazon Web Services) Cloud eco-system. Your work will influence the success of companies across the world. Members of our Technology team are experts in the field, working to evaluate and improve today’s systems while building tomorrow’s.

Additionally, you will use analytical and troubleshooting skills to provide project participation, support continuity, and rotating on-call escalation. You will also lead detection and troubleshooting of issues that affect delivery of services for industry leading Digital Consumer Experience products. Teamwork and creativity are essential to this role. As a go-to point of escalation you will be challenged with resolving card holder impacting issues in a fast-paced environment.

What you will do:

• Provide hands-on support for existing environments to include performance of the following related tasks: software installation, patch installation, upgrades, query writing, configuration, security, system monitoring and tuning, disaster recovery planning, and release deployments
• Responsible for managing and upgrading Amazon EKS clusters
• Implement tools and automation for build, configuration management, continuous integration (CI), deployment, and application monitoring
• Automate and evolve infrastructure, deployment strategies and testing to support a quick turnaround of deployments
• Maintain Infrastructure as Code (IaC) responsible for provisioning, configuring, and scaling infrastructure in cloud environments
• Work closely with Engineering to ensure all relevant KPI’s are implemented within the monitoring framework. Participate in all Production Support activities during incidents and outages. Resolving all technical issues within lower and upper environments and making recommendation for performance and capacity improvements
• Participate in capacity planning, tuning systems stability, provisioning, performance, and scaling of the application infrastructure

Experience you will need to have:

• Experience with tech stack in AWS:
  o Elastic Kubernetes / ElastiCache / KMS / EC2 / AutoScaling / Load Balancers
  o Networking: VPC / Subnets / Route Tables / Security Groups / Flow Logs
  o Database: SQL / RDS / Dynamo / PostgreSQL
  o Other: IAM / S3 / CloudWatch / CloudFront / Pulsar / Elasticsearch
• Experience with Infrastructure as Code tools such as Terraform or AWS CloudFormation
• Able to work effectively, both independently and as a member of a cross-functional team in an on-call rotation environment
• Bachelor’s degree required; relevant, equivalent work experience may be substituted for degree requirement

Experience that would be great to have:

• Containerization technologies: Docker or Podman
• Continuous Integration / Continuous Delivery tools: AWS CodePipeline, Azure DevOps | Web Servers: Nginx or Apache configurations and reverse proxies
• Linux system administration: ability to manage and troubleshoot Linux systems and services, bash scripting | Networking: solid understanding of routing and networking concepts
• Experience working in an Agile development environment
• Collaboration platforms such as JIRA, Confluence, Wiki, ServiceNow

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 work in on-call rotation environment

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

$110,000.00 - $186,000.00

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.

• 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 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.

Benefits

• Medical, Vision and Dental Benefits

  Comprehensive benefit plans to suit your unique needs

• Fuel Your Life Wellness Program

  Resources to elevate your well-being

• 401k, Employee Stock Purchase Plans and Incentives & Bonuses

  When Fiserv performs well, so does your financial health

• Employee Resource Groups

  Celebrating inclusion in the workplace

• Paid Time Away

  Providing the time off to manage personal needs