Senior frontend engineer

Must have tech stackTypescript + React JS 5+ years of experience is must to haveHTMLdesigning systemdevelopment with Architect Experience mustResponsibilities:- Design and develop a high performance Saa S B2 B application- Deliver products with high responsibility, availability, scalability, security, and maintainability- Work with a product owner, a designer, and backend engineers to implement product features- Translate UI/UX designs and business requirements into high-quality, well-tested, clean, simple, and maintainable code- Take a lead on technical best practices- Resolve any technical issues, risks, and challenges, escalating as necessary and providing solutions- Maintain and improve product quality.RequirementsMust have- 8+ years experience in web development- 5+ years for frontend development for React/Typescript- Experience with Agile development.- Strong understanding of Java Script fundamentals- Strong knowledge of HTML and CSS- Experience with frontend testing frameworks (Jest, Mocha, etc…)- Experience using, designing, and building Graph QL Web Service APIs- Experience in designing system architecture- Experience in designing and maintaining UI components (Stotrybook, Visual Regression Test, etc…)- Excellent English verbal communication skills.Nice to have- 1+ years experience with backend development (Golang/ Java/ Node JS/ Others)- Experience with CI/CD (Github workflow, Circle CI) and infrastructure (AWS, Heroku)- Container-based development (Docker, docker-compose, Kubernetes) experience- Experience with scrum master role.- Experience utilizing design systems.- Experience in utilizing state management libraries (Redux etc..)- Understanding of microfrontend architectureCore Frontend Development (must-have)- React.js (hooks, concurrent features, Suspense, SSR/CSR tradeoffs).- Type Script — advanced typing, generics, utility types, codebase-wide typing strategy.- Modern Java Script (ES6+) — modules, async/await, iterators, proxies, memory/closure patterns.- HTML5 / CSS3 — semantic markup, responsive layouts, cross-browser quirks, CSS modules / CSS-in-JS (emotion/styled-components) / utility-first (Tailwind).- Layout & accessibility — ARIA, WCAG best practices, keyboard navigation, screen-reader testing.- Performance optimization — code-splitting, lazy loading, critical CSS, HTTP caching, image optimization, bundle analysis.- Client-side rendering patterns — CSR, SSR, ISR, hydration concerns (Next.js/Nuxt-like knowledge).Component & Design System Engineering (must-have)- Component-driven design — Atomic/Feature-sliced architecture, reusable component libraries.- Storybook (authoring, docs, visual review), component catalog maintenance, semantic versioning for component libs.- Design tokens & theming — token management, runtime theming, dark mode, cross-brand theming.- Visual regression — Percy / Chromatic or similar visual diff workflows integrated into CI. (nice to have)State Management & Data Layer (must-have)- State libraries — Redux (toolkit), Zustand, Recoil, or comparable patterns; advanced patterns (selectors, middleware, immutability).- Offline & real-time — Web Sockets, Server-Sent Events, optimistic updates, cache invalidation patterns. (nice to have)- Graph QL & REST — designing/consuming Graph QL APIs (Apollo/Relay), schema awareness, batching/fetch policies.Architecture & System Design (must-have)- Micro-frontend architecture — module federation, routing & shared runtime, version management, independent deployability.- Monorepo experience — Nx / Lerna / Turborepo setups, package boundaries, dependency graph management.- Scalability & maintainability — feature-slicing, separation of concerns, large-scale codebase refactoring.- Security-first frontend — XSS/CSRF mitigations, secure auth flows, token handling in browser, secure storage patterns.Testing & Quality (must-have)- Unit & integration testing — Jest, React Testing Library, mocking patterns, coverage strategies.- E2 E testing — Cypress or Playwright with stable selectors, parallel test strategy, test flakiness mitigation.- Contract & integration testing — schema validations for Graph QL/REST; consumer-driven contracts.- Static analysis & linting — ESLint, Type Script compiler settings, style enforcement (Prettier), automated PR checks.- Observability & error monitoring — Sentry, Log Rocket, frontend telemetry, performance monitoring (Core Web Vitals).Build, CI/CD & Platform (must-have)- Build tooling — Webpack 5, Vite, Rollup; tree-shaking and long-term caching strategies.- CI/CD pipelines — Git Hub Actions / Circle CI / Jenkins: test → build → visual tests → canary/blue-green deploy.- Containerization & infra — Docker, container-based local dev, K8s familiarity for frontends (Ingress, rolling deploys).- Package management & publishing — npm/pnpm/yarn workspaces, private registries, semantic releases.- Cloud platforms — AWS/GCP/Azure basics for frontend delivery (CDN, S3, Cloud Front, IAM). (nice to have)Observability, Ops & Reliability (must-have)- Performance budgets & SLOs for frontend features; monitoring Core Web Vitals.- Feature flags & rollout — Launch Darkly / Unleash or self-hosted flag strategies for safe releases.- Incident response — debug production issues, rollbacks, root-cause analysis for client-side faults.Backend & Integration- Understanding backend systems — service contracts, authentication (OAuth2/Open ID Connect), rate limits, idempotency. (must have)- Some backend exposure — Node JS / Java / Go basics for cross-stack debugging and building small services (nice-to-have).