Frontend Developer Engineer Jobs in Wisconsin (NOW HIRING)

## Senior Front-End DeveloperApplylocations: Westlake, TXtime type: Full timeposted on: Posted Todaytime left to apply: End Date: September 22, 2026 (30+ days left to apply)job requisition id: 2133532## ## Job Description:**Note: Fidelity will not provide immigration sponsorship for this position.**Position Description:Designs and maintains world-class, business-critical products by leveraging Angular, Nest.js, Amazon Web Services (AWS), and Cypress to deliver solutions to complex technical challenges. Creates high-impact initiatives and works closely with other developers to implement system changes in a constantly evolving agile environment, using GitHub. Performs back-end services development using Application Programing Interface (API) design and development and microservices architecture (Java, REST, Node.js, and Swagger). Troubleshoots and works on production issues utilizing Splunk and Datadog. Builds and deploys applications using Continuous Integration/Deployment (CI/CD) using Jenkins, Artifactory, uDeploy, and GitHub. Supports the development, testing, and deployment of modern, feature-rich software to assist external users. Provides business solutions by developing complex or multiple software applications.Primary Responsibilities:* Develops user-facing applications using modern JavaScript frameworks Angular, TypeScript, and Node.js.* Conducts end-to-end application testing using automated tool Selenium, Cucumber, Cypress, and Playwright, covering unit, integration, and functional tests.* Implements Test Driven Development (TDD) and unit testing, using frameworks, Jest, and Jasmine.* Deploys and monitors applications in the cloud.* Performs all phases of Software Development Life Cycle (SDLC) within an Agile software delivery environment.* Confers with systems analysts, engineers, programmers, and others to design systems and obtain information on project limitations and capabilities, performance requirements, and interfaces.* Develops web applications utilizing the latest technologies and frameworks.* Implements micro services architecture to build and deploy highly automated, scalable, and maintainable infrastructure.Education and Experience:Bachelor’s degree in Computer Science, Engineering, Information Technology, Information Systems, or a closely related field (or foreign education equivalent) and three (3) years of experience as a Senior Front-End Developer (or closely related occupation) developing and deploying Cloud platform applications for Cloud infrastructures (AWS or Azure) using container technologies in a financial services domain.Or, alternatively, Master’s degree in Computer Science, Engineering, Information Technology, Information Systems, or a closely related field (or foreign education equivalent) and one (1) year of experience as a Senior Front-End Developer (or closely related occupation) developing and deploying Cloud platform applications for Cloud infrastructures (AWS or Azure) using container technologies in a financial services domain.Skills and Knowledge:Candidate must also possess:* Demonstrated Expertise (“DE”) building and maintaining scalable, high-performance User Interfaces (UIs), using Angular and TypeScript; and building reusable component libraries, maintaining application state with NgRx, and optimizing performance across devices, using Chrome DevTools and Splunk.* DE integrating Angular front-end technologies with RESTful APIs built in Nest.js to enable seamless data flow for user authentication, transaction processing, and dashboard analytics; developing shared data models (Data Transfer Objects (DTOs) and interfaces) to ensure consistency between front-end and back-end layers; and executing API lifecycles using Angular services and interceptors to maintain tokens, handle errors, apply retry logic, and support logging.* DE designing scalable back-end systems using Nest.js or Java to support modular, maintainable services for enterprise applications; integrating front-end applications with secure RESTful APIs built in Nest.js and Node.js secure RESTful APIs for applicant data; and implementing enterprise-grade authentication using JWT, OAuth2, and Role-Based Access Control (RBAC) via custom guards and decorators.* DE implementing unit and integration tests with Jest by organizing mocks, spies, and test modules; integrating code coverage and automated tests into CI pipelines using Jenkins and UDeploy for gated deployments; automating end-to-end testing flows with Cypress to support CI/CD pipelines; and contributing across all phases of the SDLC -- gathering requirements, estimating, releasing, and providing post-deployment support -- while using AWS services and Jira to track project progress.#PE1M2#LI-DNI# Fidelity’s Onsite Working Model Fidelity is transitioning to a full-time onsite working model through a phased rollout across regions and roles. Currently, some roles and locations require 100% onsite presence, while others require less. Onsite expectations are likely to evolve as the rollout continues. This transition does not apply to fully remote roles.## ## Certifications:## ## Category:## Information TechnologyPlease be advised that Fidelity’s business is governed by the provisions of the Securities Exchange Act of 1934, the Investment Advisers Act of 1940, the Investment Company Act of 1940, ERISA, numerous state laws governing securities, investment and retirement-related financial activities and the rules and regulations of numerous self-regulatory organizations, including FINRA, among others. Those laws and regulations may restrict Fidelity from hiring and/or associating with individuals with certain Criminal Histories.### About UsAt Fidelity, we are passionate about making our financial expertise broadly accessible and effective in helping people live the lives they want! We are a privately held company that places a high degree of value in creating and nurturing a work environment that attracts the best talent and reflects our commitment to our associates. We are proud of our diverse and inclusive workplace where we respect and value our associates for their unique perspectives and experiences. For information about working at Fidelity, visit FidelityCareers.com.Fidelity Investments is an equal opportunity employer. #J-18808-Ljbffr