Senior Full Stack Developer

Fiserv

Sunnyvale, CA

Full Time

Senior

109k-187k

about 1 month ago

Job Description

About the Role

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.

Key Responsibilities

You'll take ownership of one or more web services-adding new features, fixing bugs, and making improvements to keep the code clean and efficient.
You'll design and build REST APIs that power our mobile apps, web dashboard, payment devices, and partner tools.
You'll work closely with the product team to turn big ideas into practical, well-planned features that align with our goals.
You'll lead your features from start to finish-building, launching, and keeping an eye on them once they're live.
You'll team up with infrastructure engineers to create data models that support fast, reliable services at scale.
You'll write automated tests for your features and help QA build strong test strategies to keep everything working smoothly.
You'll be part of a collaborative, agile team-sharing ideas, giving feedback, and joining planning sessions to keep projects on track.
You'll join a regular on-call rotation, helping us quickly respond to any issues and keep our systems running smoothly.

Requirements

Bachelor's Degree (preferably Computer Science or Engineering) or equivalent combination of experience, education and military.
5+ years of hands-on experience with Java development.
Proven experience in backend server-side development.
Proficiency in JavaScript-based web development, particularly with TypeScript and React.
Strong understanding of modern web UI technologies including HTML5 and CSS3.
Experience working with MySQL or comparable relational databases.
Skilled in API design and implementation.
Familiarity with software development lifecycles, including practical experience with Scrum.

Nice to Have

Background in frontend JavaScript development, with exposure to web services, e-commerce platforms, or high-volume transactional systems.
Experience developing microservices, preferably using Spring Boot.
Familiarity with React, Ember, and other modern frontend frameworks.
Exposure to cloud platforms, especially Google Cloud.
Hands-on experience with automated testing frameworks such as MochaJS, Selenium, or Cypress, and knowledge of CSS precompilers and build/package tools (e.g., Sass, Less, NPM, Grunt).

Qualifications

Educational background in Computer Science or Engineering (preferred).

Benefits & Perks

Medical, Vision and Dental Benefits
Fuel Your Life Wellness Program
401k, Employee Stock Purchase Plans and Incentives & Bonuses
Employee Resource Groups
Paid Time Away

Working at Fiserv

We believe we're better together. Fiserv is committed to diversity and inclusion, offering a collaborative, results-oriented environment. We value innovation, teamwork, and the well-being of our employees through various wellness and resource programs.

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