Sr. Full Stack Developer

Calling All Innovators - Find Your Future At FiservWe'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.About Your RoleFiserv is a global leader in financial technology, and our Clover platform empowers millions of small and independent businesses worldwide to accept payments and run their operations seamlessly. As a Web Developer on the Clover Gift Cards team, you will be at the heart of one of our most impactful and fast-growing merchant engagement platforms. In this role, you will help design, scale, and maintain the end-to-end engineering ecosystem that powers digital and physical gift card experiences across Clover point-of-sale (POS) hardware devices, web applications, and consumer portals.What You'll DoCollaborate effectively within a multidisciplinary team of software developers and engineers to build intuitive merchant- and consumer-facing web interfaces.Take full ownership of core services and feature delivery—from initial architecture and technical design through to deployment and production monitoring.Translate product requirements into functional, maintainable, and extensible software while identifying technical requirements in product planning meetings.Write automated developer tests for new features and update existing test suites to maintain low response times, high signal-to-noise quality, and optimal application performance.Partner with QA and engineering colleagues to develop comprehensive test strategies, perform root-cause troubleshooting, and resolve complex application issues.Participate in a regular team on-call rotation to maintain platform reliability and high availability for global merchants.Responsibilities listed are not intended to be all-inclusive and may be modified as necessary.Experience You'll Need To HaveEducation: Bachelor's Degree in Computer Science, Engineering, or a related technical field (or equivalent practical experience).Software Delivery: 7+ years of professional experience designing, developing, delivering, and supporting critical enterprise web applications.Frontend Mastery: Strong proficiency with JavaScript, TypeScript, HTML5, CSS, SASS/LESS, browser DOM APIs, and web build systems (e.g., Webpack, Gulp, Grunt).Modern Frameworks: Deep experience building responsive, highly accessible web applications using React, Next.js, or Ember.API & Data Engineering: Solid hands-on experience developing REST and GraphQL APIs, along with working knowledge of relational (MySQL) and NoSQL (MongoDB) databases and complex query design.Cloud & Automation: Experience working in cloud environments (preferably GCP) and writing automated web tests using modern frameworks (Jest, Cypress, Selenium).Modern Architectures & Tools: Proven experience in Agile environments using Git, with an understanding of modern web architectures (micro-frontends, Webpack Module Federation, service workers).Experience That Would Be Great To HaveCommunication & Collaboration: Excellent written, verbal, and interpersonal communication skills, with a track record of effective cross-functional teamwork.AI-Assisted Development: Proven experience leveraging AI software engineering tools (e.g., GitHub Copilot, IDE plugins, AI coding agents) to optimize workflows, accelerate debugging, and elevate overall developer velocity.Back-End development or light knowledge in Java, Spring Boot & Microservices.How You'll WorkThis 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.Benefits At FiservFuel Your Life program to support your physical, financial, social, and emotional well-beingPaid holidays and generous time away policiesNo-cost mental health support through Employee Assistance ProgramsLiving Proof program to recognize your peers' extra effort with points redeemable for rewardsEight Employee Resource Groups to foster a collaborative culture and expand your networkUnparalleled professional growth with training, development, and internal mobility opportunitiesMedical, dental, vision, life, and disability insurance options available from day oneRetirement planning and discounted shares with the Employee Stock Purchase PlanTuition assistance and reimbursement programPaid parental, caregiver, and military leaveSalary Range $140,000.00 - $210,000.00These 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 nameComplete 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 View email address on click.appcast.io. 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.