Skip to main content

Be a part of the company that’s transforming the way merchants do business

We’re a team of inspired problem solvers building powerful, intuitive point-of-sale tools for small and medium businesses. Hardware that’s stylish and functional. Software that scales to any business. We’ve sold over one million Clover devices to restaurants and shops all over the world—and probably in your own neighborhood.


Senior Full Stack Engineer

Job ID R-10319951 Date posted 04/10/2024

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 Full Stack Engineer

Senior Full Stack Engineer

We're Clover, the largest cloud-based integrated commerce operating system for small and medium businesses.  You've probably seen us in your favorite restaurants and shops; we support over 700k merchants worldwide and in 2022 processed over $240 billion card transactions.  Clover enables merchants to accept payments, run their business and sell more.  Come help us transform the way merchants do business, join Clover.

About the Team

Clover Payment - Card-Not-Present aka [E-commerce] team plays a crucial role in expanding and improving our Payment platform. With Clover's eCommerce solutions, we can help merchants grow their business online by developing our payment web services and supporting a wide range of functionality across the suite of apps we provide to our merchants.

What does a Web Engineer do at Clover?

Clover Payment Web Engineers are tasked with improving/expanding our Payment platform and product by developing our payment web services and supporting a wide range of functionality across the suite of apps we provide our merchants. Our Web Engineers work closely with Server Backend engineers, Android Application Engineers, the Product Team and designers. Our engineers are pragmatic in balancing priorities and enjoy working in an iterative model where web features are released every other week. Responsibilities: Own one, or more, of the payment web services; add new features, resolve bugs, and refactor/ improve the codebase

Identify technical requirements in product meetings and assist the business team with realistic project planning and feature development; translate product requirements into functional, maintainable, extensible software that is in-line with company objectives


  • BS with Computer Science or Electrical and Mathematics degree

  • Minimum 5+ years of Web development

  • Strong understanding of Javascript/Typescript

  • Strong experience with React.

  • CSS3 and HTML5 templating

  • Fundamental understanding of single-page apps

  • Some experience writing tests; we use Jest, and Selenium

  • Basic SQL knowledge, Understanding of REST APIs

  • Experience with package management systems, such as yarn, Bower, etc.

  • Understanding of build systems: Webpack, Rollup, etc.

  • Superior problem-solving skills and browser debugging capabilities

  • Flexible and self-driven with a collaborative approach to problem-solving

Nice to have:


Modular SAAS

Previous experience with Ember.js framework

Familiarity with Java

Some exposure to CSS pre-compilers, such as Sass or Less

Experience with distributed computing

E-commerce / Checkout experience

Web security

Salary Range

$82,200.00 - $141,000.00

These pay ranges apply to employees in New York and California. Pay ranges for employees in other states may differ.

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).

What you should know about us:

Fiserv is a global leader in payments and financial technology with more than 40,000 associates proudly serving clients in more than 100 countries. As one of Fortune® magazine's "World's Most Admired Companies™" 9 of the last 10 years, one of Fast Company’s Most Innovative Companies, and a top scorer on Bloomberg’s Gender-Equality Index, we are committed to innovation and excellence.

Our commitment to Diversity and Inclusion:

Fiserv is an Equal Opportunity Employer, and we welcome and encourage diversity in our workforce that reflects our world. All qualified applicants will receive consideration for employment without regard to race, color, religion, sexual orientation, gender identity, national origin, disability, protected veteran status, or any other category protected by law. 

We will ensure that individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment. Please contact us to request accommodation.

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 business email address. We will not hire through text message, social media, or email alone, and any interviews will be conducted in person or through a secure video call. We won’t ask you for sensitive information nor will we ask you to pay anything during the hiring process. We also won’t send you a check to cash on Fiserv’s behalf.

If you see suspicious activity or believe that you have been the victim of a job posting scam, you should report it to your local FBI field office or to the FBI’s Internet Crime Complaint Center.

This role is not eligible to be performed in Colorado
View All of Our Available Opportunities

Benefits & Perks