Jobs and Careers
FI

Senior Software Engineer

Fiserv
Berkeley Heights, United Statesfull_timeVerifiedPosted 23 Apr 2025

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

Senior Software Engineer

What does a successful Senior Software Engineer do at Fiserv?

As a Senior Software Engineer in our Global Business Solutions (Payment Acceptance) business you will be a part of a team which processes over 350 million payment transactions per day with a peak throughput of over 8,000 transactions per second while maintaining millisecond-fast response time. This is done for some of the largest merchants in the U.S.

What you will do: 

  • Lead modernization and migration of several real-time applications to AWS that are low-latency, high-volume APIs that run 24x7 supporting critical business processes
  • Reengineer on-premises applications to highly resilient, highly available, low-latency applications running on AWS
  • Provide high-quality code and design review feedback to other engineers while defining and leading the adoption of standards and best practices
  • Design and develop microservices for highly efficient protocol translation and enrichment with reactive design patterns
  • Develop high throughput and high-volume transaction Payment APIs that can be consumed by omni channel platforms
  • Participate in development of roadmap and strategies for documenting and presenting API specifications in an easy and consumable format

What you will need to have:

  • 8+ years of experience in agile development using Java , Python, GIT, JIRA, Maven and Confluence
  • 5+ years of experience in Spring Boot
  • 5+ years of practical cloud-native experience in serverless technologies, including AWS
  • 5+ years of experience with distributed systems and microservices architectures
  • 5+ years of experience in digital and mobile systems as well as APIs using Databases and code integrations such as Oracle, SQL Server, MySQL, Mongo DB and unit test using JUnit, Mockito and JaCoCo
  • 2+ years of experience leading cloud transformation in a payments or financial services environment
  • 1+ year of experience with transaction processing systems with high volume and low latency type applications
  • Bachelor's degree in computer science, or a related field, or an equivalent combination of education, military, and work experience

What would be great to have:

  • Experience with container orchestration tools/DevOps methodologies
  • Experience with enterprise messaging like Kafka, MSK , Confluent and Flink
  • Experience in CI/CD pipeline and related open-source tools like GitLab, Harness and Terraform
  • Experience in using Quality and Security scan tools such as Sonar, Fortify and Web Inspect
  • Experience in Integration Testing APIs with Postman or JMeter

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.

This role is not eligible to be performed in Colorado, California, District of Columbia, Hawaii, Illinois, Maryland, New York, Nevada, Rhode Island or Washington.

It is unlawful to discriminate against a prospective employee due to the individual's status as a veteran.

Please note that salary ranges provided for this role on external job boards are salary estimates made by outside parties and may not be accurate.

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 h

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 →