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

What does a successful Sr Staff Web Engineer at Fiserv do?

We are seeking a highly skilled and experienced full-stack web developer with expertise in React and Next.js to lead the architecture and development of complex, high-performance web applications. You will play a pivotal role in designing, building, and maintaining our next-generation web platforms, ensuring scalability, maintainability, and exceptional user experiences.

What You Will Do:

• You’ll lead the architecture and development of fast, scalable, and SEO-oriented web apps using React and Next.js.

• You’ll roll up your sleeves and write high-quality code to solve complex problems across performance, rendering, and interactivity.

• You’ll help us scale to 200,000+ merchants and millions of users while keeping the experience smooth and snappy.

• You’ll collaborate with product managers, designers, and engineers to build features that users love.

• You’ll guide our team on technical best practices, code structure, and performance tuning.

• You’ll mentor mid and junior engineers, helping them grow while keeping our engineering standards high.

• You’ll make decisions that shape the future of our front-end architecture, tools, and workflow.

• You’ll lead by example, promoting clean code, testing, and thoughtful design patterns.

What You Will Need to Have:

• 5+ years of front-end development experience with a strong focus on React and Next.js and other modern frontend technologies.

• Deep knowledge of server-side rendering, static generation, and dynamic routing in Next.js.

• Proficiency in JavaScript (ES6+), with solid TypeScript experience.

• Strong understanding of performance optimization, Core Web Vitals, and building for scale.

• Advanced CSS skills, with experience in frameworks like Tailwind, SASS, or CSS-in-JS.

• Experience writing unit and integration tests using tools like Jest or React Testing Library.

• Bachelor’s degree in Computer Science or a related field, or equivalent military or practical experience.

What Would Be Great to Have:

• Experience deploying on platforms like Jenkins, Argo or building CI/CD pipelines.

• Understanding of accessibility (WCAG) and responsive web design.

• Familiarity with UI/UX best practices and collaborating closely with design teams.

• A track record of contributing to open-source projects or sharing knowledge with the dev community.

• Passion for mentoring and building strong engineering culture.

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 hiring process, please contact AskHR.US@fiserv.com. 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.