About the Role
We are hiring a Senior Frontend Engineer to architect and deliver high-performance, secure, and accessible frontend applications for an enterprise retirement fintech platform serving millions of users.
This is a deeply technical, hands-on role . You will own frontend architecture, performance, state management, SSR / CSR strategies, and security-critical UI flows in a regulated environment.
Key Responsibilities
- Architect and build production-grade React and Angular applications
- Implement SSR / CSR / ISR using Next.js with performance and SEO trade-offs
- Own state management architecture (Redux Toolkit / Zustand / React Context)
- Optimize frontend performance :
Ø Core Web Vitals
Ø Bundle size, code splitting, lazy loading
Ø Rendering and re-render control
Integrate and optimize REST & GraphQL APIs (Apollo Client / React Query / SWR)Build or support Node.js BFF services for frontend-optimized data accessImplement WCAG 2.1 AA accessibility (ARIA, keyboard navigation, screen readers)Enforce frontend security best practices :Ø XSS / CSRF prevention
Ø OAuth2 / OIDC-based auth flows
Ø CSP and secure headers
Build reusable components and contribute to design systemsWrite and maintain unit, integration, and E2E testsMentor engineers and participate in architectural decision-makingOwn frontend production issues and performance regressionsRequired Skills (Non-Negotiable)
6+ years of frontend engineering experienceExpert-level React (Hooks, lifecycle, reconciliation, performance tuning)Strong Angular experience (Angular 12+, RxJS, change detection)Advanced TypeScript (strict configs, generics, complex typing)Proven Next.js experience (SSR, SSG, ISR, routing)Strong state management experience :Ø Redux Toolkit / Zustand / React Context
API integration expertise :Ø REST
Ø GraphQL (Apollo Client preferred)
Strong CSS and styling knowledge :Ø CSS Modules / SCSS / styled-components / Tailwind
Deep understanding of :Ø Core Web Vitals
Ø Lighthouse metrics
Hands-on accessibility implementation (WCAG 2.1 AA)Frontend security knowledge :Ø XSS, CSRF, CSP
Testing experience :Ø Jest
Ø React Testing Library
Ø Cypress or Playwright
Production experience with Git-based workflows and CI / CDGood-to-Have (Strong Advantage)
FinTech / banking / regulated systems experienceMicro-frontend or Module Federation exposureData visualization (Ag-Grid, D3, Recharts, Chart.js)Real-time features (WebSockets, Socket.io)Design systems / StorybookFrontend observability (Sentry, LogRocket, Datadog RUM)What We Are Looking For
A hands-on senior engineer , not just a reviewerSomeone who has designed, scaled, and fixed frontend systems in productionStrong ownership of performance, accessibility, and securityComfortable working in audit-heavy, compliance-driven environmentsCan balance speed with correctnessWork Mode
Remote / Hybrid (as per client alignment)Interview Process
Deep technical screening (React, TypeScript, architecture)Performance + state management discussionCode review / system design roundFinal client interaction (if required)Send your resume to aishwarya@mappoptimist.com