Staff Web Engineer

As a Staff Web Engineer at Fiserv, you will own and develop key web features, significantly enhancing the performance and functionality of our web applications. You’ll build and maintain scalable solutions, collaborate with product managers and designers to translate requirements into functional software, and participate in code reviews while mentoring junior developers. Your role will also involve maintaining CI/CD pipelines and working closely with QA to ensure quality through automated testing.

To qualify for the Staff Web Engineer position at Fiserv, you should hold a Bachelor’s degree in Computer Science, Engineering, or relevant technical education. Additionally, you’ll need over 7 years of software development experience focusing on web applications, with deep expertise in React, Webpack, and modern front-end tooling. Proficiency in JavaScript, TypeScript, and HTML ecosystems is a must, particularly in delivering scalable and feature-rich web UIs.

The Staff Web Engineer at Fiserv contributes to our innovative web solutions by actively collaborating with cross-functional teams to design and implement new features and enhancements. By utilizing modern web technologies, you will ensure that our online ordering and inventory management applications meet the dynamic needs of our merchants, fostering quick, reliable, and secure transactions.

A Staff Web Engineer at Fiserv should be well-versed in React, JavaScript, TypeScript, and HTML, with experience in web application development. Familiarity with modern front-end tooling like Webpack, CI/CD workflows, and version control systems (like GitHub Enterprise) will be essential for maintaining the quality and efficiency of our web applications.

The Staff Web Engineer role at Fiserv is unique because it allows you to have a significant impact on how millions of merchants operate daily. From developing critical web features to collaborating with talented teams on innovative projects, you’ll be at the forefront of fintech developments, driving solutions that enhance user experience and operational efficiency.

When responding to questions about your experience with React, highlight specific projects where you used React to build user interfaces. Discuss your approach to state management, component design, and any libraries you integrated, such as Redux for state management. Emphasize your familiarity with recent React features like hooks and context.

To tackle debugging in web applications, I utilize a systematic approach including console logging, utilizing browser developer tools, and adopting a debugging methodology such as the divide-and-conquer technique. Discuss any experiences you have with debugging tools like React Developer Tools or browser extensions that you’ve found particularly beneficial.

I ensure code quality by adhering to best practices such as writing clean, maintainable code, conducting thorough code reviews with peers, and utilizing automated testing frameworks. I also keep up with modern JavaScript standards to ensure my codebase remains efficient and scalable.

When describing a project involving cross-functional collaboration, focus on a specific instance and outline your role in the project. Talk about how you communicated with product managers, designers, and other engineers, and the strategies you used to manage conflicts or differing opinions to meet project goals.

Share your experience by describing how you’ve set up or worked with CI/CD pipelines in past projects. Discuss specific tools you’ve used, such as Jenkins or GitHub Actions, highlighting how automated build and deployment processes helped streamline development workflows and enhance collaboration.

Automated testing is crucial because it ensures that code changes do not break existing functionality. When asked about it, describe how you’ve implemented automated tests, such as unit tests or integration tests, and the testing frameworks you are comfortable with, conveying how this practice improves the overall quality of your applications.

Discuss the modern front-end tools you’ve used, like Webpack or Babel, and how you’ve leveraged them to optimize performance and streamline development. Explain how they played a role in your projects and contributed to efficient building and workflow management.

When discussing performance optimization, outline specific techniques you’ve applied, such as code-splitting, lazy loading, and minimizing render-blocking resources. Provide examples of how you identified and resolved performance bottlenecks in past applications.

If you have experience with Micro Front-end architecture, discuss your understanding of the concept and describe projects where you've implemented it. If not, express your interest in learning more about it and explain related concepts you are familiar with, showcasing your adaptability and eagerness to grow.

When answering this question, convey your enthusiasm for innovation in fintech and the opportunity to impact millions of users. Highlight specific aspects of the role that resonate with you, such as the collaborative nature of the team or the chance to work on cutting-edge projects that shape the future of payments and transactions.