Job Description *What does a successful Mid-Level Front End Developer do?A successful Mid-Level Front End Developer at Fiserv plays a crucial role in creating and maintaining user interfaces for financial applications. You will be a Partner in Possibility, ensuring that our web applications are high-quality, scalable, and responsive. Your contributions will directly enhance the user experience and align with Fiserv's mission to meet customers where they are. You will have the opportunity to grow your skills and advance your career within a supportive and innovative environment.What you will do:Develop and maintain front-end components using React, JavaScript, TypeScript, HTML, and CSSCollaborate with UI/UX designers to implement designs and ensure a seamless user experienceParticipate in code reviews and contribute to improving code quality and standardsTroubleshoot and debug front-end issuesWrite unit and integration tests to ensure code reliabilityContribute to the development of reusable components and librariesWhat you will need to have:Strong proficiency in JavaScript, TypeScript, HTML, and CSSExtensive experience with the React frameworkUnderstanding of state management libraries (e.g. Context API)Experience with responsive design and cross-browser compatibilityFamiliarity with version control systems (e.g., Git)What would be great to have:Knowledge of testing frameworks (e.g., Jest, Enzyme)Knowledge of CI/CD tools such as JenkinsExperience with RESTful APIs and data integrationUnderstanding of accessibility best practicesExperience in the FinTech industry