Staff Web Engineer

Sorry, this job was removed at 08:19 a.m. (UTC) on Tuesday, Nov 11, 2025
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Sunnyvale, CA, USA
In-Office
160K-240K Annually
eCommerce • Fintech • Information Technology • Payments • Financial Services
At Fiserv, we aspire to move money and information in a way that moves the world.
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

Staff Web Engineer

About your role:

At Clover, part of Fiserv, you will join an entrepreneurial team that is rapidly transforming the FinTech and payments industry. As a Staff Web Engineer, you will enhance and secure the leading Point of Sale system, which includes custom hardware, cloud-based software, and platform APIs. Your passion for security and technology will directly impact the millions of transactions processed daily for merchants ranging from small shops to large stadiums.

What you’ll do:

  • Design and maintain cloud-hosted web-based applications using HTML/XHTML, CSS, JavaScript, React, and other programming tools.
  • Build merchant-facing web applications and features from development through deployment and production monitoring.
  • Work in a cross-functional team with Product Managers, Designers, QA, and Operations to translate product and design requirements into functional, maintainable software.
  • Identify technical requirements in product meetings and assist with realistic project planning and feature development.
  • Develop automated tests for web features, perform dev testing, and ensure a consistent user experience across all supported web browsers.
  • Review peer code, provide mentorship, and conduct research to develop advanced features using the latest technological stack.
  • Implement best practices related to web security, collaborate with Security engineers on application scans, fix issues, and educate team members.
  • Follow Agile SDLC, participate in planning and sprint boards, and take part in regular on-call and bug triage rotation.
  • Responsibilities listed are not intended to be all-inclusive and may be modified as necessary.

Experience you’ll need to have:

  • Bachelor’s degree in Computer Science or a relevant field, and/or equivalent military experience.
  • 10+ years of hands-on experience in professional software development.
  • 5 years of web development experience using JavaScript (Typescript/React).
  • 5 years of experience with modern web UI technologies (HTML5, CSS3).
  • 3 years of experience with frontend frameworks such as React, Ember, Angular.
  • Practical experience with Software Development Lifecycles such as Scrum.

Experience that would be great to have:

  • Frontend JavaScript experience and understanding of web services, payments/point-of-sale/reporting platforms, and high-volume transactional systems.
  • Experience with the Cypress framework for automation testing.
  • Experience writing JS tests using tools such as MochaJS and Selenium.
  • Experience with package management systems such as Yarn, NPM, Bower.
  • Previous experience with CSS precompilers such as Sass or Less.

How you’ll work:

  • This role is on-site Monday through Friday. Fiserv considers in-person collaboration to be an essential part of this role as in-person office experiences help you with your overall onboarding experience and leads to stronger productivity.
  • This role requires use of a computer and audio equipment.

 

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.

 

Benefits at Fiserv:

  • Fuel Your Life program to support your physical, financial, social, and emotional well-being
  • Paid holidays and generous time away policies
  • No-cost mental health support through Employee Assistance Programs
  • Living Proof program to recognize your peers’ extra effort with points redeemable for rewards
  • Eight Employee Resource Groups to foster a collaborative culture and expand your network
  • ·Unparalleled professional growth with training, development, and internal mobility opportunities
  • Medical, dental, vision, life, and disability insurance options available from day one
  • Retirement planning and discounted shares with the Employee Stock Purchase Plan
  • Tuition assistance and reimbursement program
  • Paid parental, caregiver, and military leave

Salary Range

$160,000.00 - $240,000.00

These pay ranges apply to employees in Sunnyvale, California. 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 [email protected]. 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.

Fiserv Compensation & Benefits Highlights

The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Fiserv and has not been reviewed or approved by Fiserv.

  • Healthcare Strength Healthcare coverage is positioned as comprehensive, spanning medical, dental, and vision options alongside disability, life, and mental-health support resources. The offering is further reinforced by wellness programming and access to an employee assistance program with counseling.
  • Leave & Time Off Breadth Time-off support appears broad, including paid holidays, sick time, and policies framed as well-being or recharge time. Parental leave and other leave types such as bereavement are also described as part of the overall package.
  • Retirement Support Retirement benefits include a 401(k) plan with company matching and, for some legacy populations, access to a defined benefit pension plan. Equity-related programs such as an employee stock purchase plan are also described as available for eligible employees.

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The Company
HQ: Milwaukee, WI
41,000 Employees
Year Founded: 1984

What We Do

Fiserv, Inc. (NYSE: FI) is a leading global provider of payments and financial services technology solutions, driving innovation in payments, processing services, risk and compliance, customer and channel management, and business insights and optimization. For more information, visit www.fiserv.com.

Why Work With Us

As a global leader in payments and financial technology, we proudly serve 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.

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