Junior Frontend Engineer - Enterprise Retirement FinTech
Role Summary Join our frontend engineering team to build intuitive, high-performance user interfaces for enterprise retirement platforms serving millions of customers. As a Junior Frontend Engineer, you will develop React and Angular applications, implement modern UI patterns, and contribute to delivering secure, accessible ficial applications. This role offers hands-on experience with cutting-edge frontend technologies, state management, performance optimization, and secure coding practices within a regulated ficial environment. Key Responsibilities Develop and maintain React and Angular components for retirement account dashboards, contribution workflows, and investment portfolio interfaces. Implement responsive, accessible user interfaces following WCAG 2.1 AA standards ensuring usability for all customers. Build reusable UI components and integrate them into design systems for consistency across applications. Implement state management solutions using Redux, Zustand, or React Context for application-wide data handling. Integrate APIs using Axios, React Query, SWR, and Apollo Client for efficient data fetching and caching. Develop data visualization components using Ag-Grid Community Edition, D3.js, Recharts, and Chart.js for ficial data presentation. Implement client-side and server-side rendering patterns using Next.js for optimal performance and SEO. Contribute to performance optimization efforts including code splitting, lazy loading, and bundle size reduction. Work with Node.js-based BFF services to support frontend data aggregation and transformation needs. Implement real-time features using WebSockets and Socket.io for live market updates and notifications. Write comprehensive unit and integration tests using Jest, React Testing Library, and Cypress. Follow secure coding practices to prevent XSS, CSRF, and other vulnerabilities in customer-facing applications. Implement authentication and authorization flows following OAuth2/OIDC best practices. Collaborate with designers, backend engineers, and product teams to deliver compliant, user-centric features. Participate in code reviews, learning from senior engineers to improve code quality and technical skills. Maintain technical documentation for components and features developed. Required Skills and Experience 3-5 years of professional frontend development experience building production web applications. Exposure to web analytics implementations. Strong proficiency in React including Hooks, Context API, and component lifecycle with practical production experience. Working knowledge of Angular including components, services, RxJS, and dependency injection. Solid TypeScript and JavaScript (ES6+) skills with understanding of modern language features and type safety. Experience with state management libraries: Redux, Zustand, or React Context. Hands-on experience with data fetching libraries: React Query, SWR, Axios, or Apollo Client for GraphQL integration. Proficiency with React Router for client-side routing and navigation. Experience implementing data visualization using Ag-Grid Community Edition, Recharts, Chart.js, or D3.js. Exposure to Next.js for SSR/SSG implementations and understanding of rendering strategies. Working knowledge of modern CSS including CSS-in-JS, CSS modules, Tailwind CSS, or SCSS. Familiarity with build tools and bundlers: Webpack, Vite, or similar toolchains. Understanding of Node.js for building simple BFF services or middleware components. Experience with real-time communication using WebSockets or Socket.io. Knowledge of web accessibility standards (WCAG 2.1) including semantic HTML, ARIA attributes, and keyboard navigation. Understanding of frontend security best practices including XSS prevention, CSRF protection, and secure authentication patterns. Familiarity with OAuth2/OIDC authentication flows and JWT token handling. Experience with testing frameworks: Jest, React Testing Library, Cypress, or Playwright. Proficiency with Git version control and collaborative development workflows. Understanding of responsive design, mobile-first development, and cross-browser compatibility. Preferred Qualifications Experience in fintech, banking, retirement services, or regulated ficial environments. Familiarity with compliance requirements (ERISA, SEC) and their impact on frontend development. Understanding of GraphQL schema design and query optimization. Experience with component libraries and design systems using Storybook. Knowledge of progressive web apps (PWA) and service workers. Exposure to CI/CD pipelines and automated deployment processes. Familiarity with frontend monitoring tools (Sentry, LogRocket, Dynatrace RUM). Understanding of performance profiling using Chrome DevTools and Lighthouse. Technical Stack Frameworks: React 18+, Angular 12+, Next.js 13+ Languages: TypeScript, JavaScript (ES2022+), HTML5, CSS3 State Management: Redux (Redux Toolkit), Zustand, React Context API Data Fetching: React Query, SWR, Axios, Apollo Client (GraphQL) Routing: React Router v6+ Data Visualization: Ag-Grid Community Edition, D3.js, Recharts, Chart.js Real-time: WebSockets, Socket.io Build Tools: Webpack 5, Vite, ESBuild Testing: Jest, React Testing Library, Cypress, Playwright Backend: Node.js, Express.js (for BFF services) Styling: CSS Modules, styled-components, Tailwind CSS, SCSS Authentication: OAuth2/OIDC, JWT Version Control: Git, GitHub/GitLab Cloud: AWS or Azure deployment environments Security and Compliance Focus Follow secure coding practices preventing common vulnerabilities (XSS, CSRF, injection attacks). Implement authentication flows securely with proper token storage and session management. Handle PII and sensitive ficial data according to regulatory requirements. Implement Content Security Policy (CSP) and secure HTTP headers. Participate in security-focused code reviews and apply feedback. Ensure input validation and output encoding to prevent security vulnerabilities. Follow principle of least privilege in frontend authorization implementations. Maintain awareness of OWASP Top 10 and apply security best practices. Growth and Development Work closely with senior engineers receiving mentorship on architecture, design patterns, and best practices. Participate in knowledge sharing sessions, technical workshops, and team learning initiatives. Contribute to improving frontend engineering standards and tooling. Develop expertise in fintech domain including retirement accounts, compliance, and regulatory requirements. Opportunity for career progression to mid-level and senior frontend engineering roles. You Will Thrive Here If You: Are passionate about building high-quality, accessible, and secure user interfaces. Value code quality, testing, and maintainable software practices. Enjoy learning new technologies and continuously improving technical skills. Thrive in collaborative environments working with cross-functional teams. Demonstrate strong problem-solving abilities and attention to detail. Are committed to user experience excellence and accessibility for all users. Understand the importance of security and compliance in ficial applications. Success Factors: Metrics for success measurement in this role Category Metric Target Measurement Method Delivery & Velocity Story point completion rate 75% of assigned story points delivered per sprint Track sprint commitments vs actual delivery in Agile tools Delivery & Velocity Feature completion time Complete assigned features within estimated timeframes 25% Monitor ticket/task completion times from assignment to deployment Delivery & Velocity Code commit frequency Minimum 3-5 meaningful commits per week Git repository analytics tracking commit patterns Performance - Core Web Vitals Largest Contentful Paint (LCP) Real User Monitoring and Lighthouse CI tracking Performance - Core Web Vitals Interaction to Next Paint (INP) Core Web Vitals monitoring for features owned Performance - Core Web Vitals Cumulative Layout Shift (CLS) Layout shift tracking for components developed Performance - Core Web Vitals First Contentful Paint (FCP) Lighthouse performance monitoring Performance - Optimization Bundle size awareness No bundle size increases >20% without justification Webpack Bundle Analyzer review in PRs Performance - Optimization Lighthouse performance score Maintain 80 score for pages developed Automated Lighthouse CI runs Performance - Optimization JavaScript error rate Error tracking via Sentry or similar tools Code Quality Code review approval rate 85% of PRs approved within 3 revision cycles Track pull request iterations before approval Code Quality Unit test coverage 70% coverage for new components written Jest coverage reports and automated CI checks Code Quality Code review participation Review 2 PRs per week from peers GitHub/GitLab analytics tracking review activity Code Quality Bug density Defect tracking system analysis for code authored Code Quality Linting compliance Zero critical linting violations ESLint/TSLint automated checks in CI/CD pipeline Accessibility WCAG 2.1 AA compliance 100% compliance for components developed Automated accessibility testing using axe-core or Pa11y Accessibility Keyboard navigation All interactive elements accessible via keyboard Manual testing checklist completion Accessibility Semantic HTML usage 100% use of semantic HTML in new components Code review validation and accessibility audits Accessibility ARIA implementation Proper ARIA attributes for complex widgets Accessibility code review and testing validation Security Security vulnerability remediation Critical: npm audit and security scanning tool tracking Security Secure coding practices Zero XSS/CSRF vulnerabilities in code reviews Security-focused code review checklist compliance Security Input validation 100% of user inputs properly validated and sanitized Code review validation and security testing Security Authentication implementation Follow OAuth2/OIDC patterns without security flaws Security review and implementation validation Learning & Growth Technical skill development Complete 2-3 technical learning objectives per quarter Track completion of courses, certifications, or skill demonstrations Learning & Growth Knowledge sharing participation Attend 90% of team knowledge sharing sessions Team calendar and attendance tracking Learning & Growth Mentorship receptiveness Actively implement feedback from senior engineers Manager assessment during 1-on-1s and performance reviews Learning & Growth Technology adoption Demonstrate proficiency with 2 new libraries/tools per year Practical application in production code Collaboration Response time to code reviews Respond to review requests within 24 hours PR response time tracking in version control system Collaboration Cross-functional communication Proactive communication on blockers and progress Peer and manager feedback during retrospectives Collaboration Meeting participation Active engagement in stand-ups, planning, and demos Manager observation and team feedback Collaboration Design collaboration Participate in design reviews for 2 features per quarter Designer feedback and collaboration tracking Component Development Component reusability 50% of components built are reusable Component library contributions and usage tracking Component Development Design system compliance 100% adherence to design system guidelines Design review and visual QA validation Component Development Responsive design 100% mobile responsiveness for components built Cross-device testing validation Component Development Cross-browser compatibility Support for all targeted browsers without critical issues Browser testing validation (Chrome, Firefox, Safari, Edge) Testing E2E test writing Write E2E tests for 75% of features developed Cypress/Playwright test coverage tracking Testing Test reliability 90% pass rate for tests authored Test execution tracking and flakiness analysis Testing Integration test coverage 60% integration test coverage for features owned Integration test tracking and code coverage tools User Experience User error rate Session replay analysis and error tracking User Experience Feature adoption support Features delivered meet acceptance criteria and user needs QA validation and product feedback User Experience Visual quality Zero visual regressions in production Visual regression testing and QA validation Business Impact Production incidents Incident management system tracking Business Impact Deployment success rate 90% of deployments succeed without rollback CI/CD pipeline metrics and deployment tracking Business Impact Bug fix turnaround Resolve assigned bugs within 3 business days Bug tracking system and resolution time analysis Business Impact Customer support impact Minimize UI-related support tickets for features owned Support ticket analysis and categorization Professional Development Career progression readiness Achieve quarterly development goals Track progress against individual development plan (IDP) aligned with mid-level expectations Professional Development Fintech domain knowledge Demonstrate growing understanding of retirement platform concepts Knowledge assessments and application in technical decisions Professional Development Self-sufficiency growth Decrease dependency on senior engineers by 25% year-over-year Manager assessment of autonomy and problem-solving capability
