SymphonyAI - Frontend Architect - AngularJS/React.js

Description :

We are looking for a Principal UI Engineer to lead the design and delivery of high-quality, scalable web frontends. You will be hands-on, work across Angular and React, drive UI architecture and performance, and accelerate delivery using modern AI-assisted engineering tools. This is a senior individual contributor role with strong technical leadership expectations.

Key Responsibilities :

- Own UI architecture : Define frontend architecture, patterns, and standards for large-scale Angular/React applications.

- Hands-on delivery : Build and ship complex features end-to-end (UI, state, routing, API integration, testing).

- Component systems : Develop and maintain reusable component libraries/design systems (PrimeNG and/or custom).

- Performance & quality : Improve Core Web Vitals, bundle size, rendering performance, accessibility, and reliability.

- Mentorship & technical leadership : Guide engineers through reviews, pairing, best practices, and incident learnings.

- AI-enabled engineering : Use AI tools to speed up coding, refactoring, test generation, debugging, and documentation while maintaining strong engineering judgment.

- Cross-functional collaboration : Partner with Product, Design, Backend, and QA to deliver cohesive experiences.

- Operational excellence : Champion observability (logging, metrics), release hygiene, and safe rollout strategies.

Required Qualifications :

- 8+ years of frontend engineering experience with strong hands-on coding in production systems.

- Strong expertise in Angular (v14+) and experience with React (or vice versa with ability to ramp quickly).

- Solid experience with PrimeNG (or similar enterprise UI frameworks) and building reusable UI components.

- Strong knowledge of TypeScript, modern JavaScript, HTML5, CSS/SCSS, responsive design.

- Deep understanding of SPA architecture : routing, state management, API patterns, caching, error handling.

- Experience with state management (e.g., NGXS/NGRX/Redux/Zustand) and reactive patterns (RxJS).

- Strong engineering fundamentals : data structures, debugging, code reviews, maintainability.

- Proven ability to lead technical decisions and influence without authority.

- At least 1 year of deep usage experience in generating ui of higher quality using tools such as cursor

- Ability to estimate features and meet delivery timeline

Preferred Qualifications :

- Experience with micro-frontends / Module Federation, monorepos (Nx), or shared UI libraries.

- Familiarity with charts/visualization (AMCharts, D3, etc.).

- Strong accessibility (WCAG) and i18n experience.

- Testing expertise : Jest/Vitest, React Testing Library, Cypress/Playwright.

- CI/CD experience for frontend builds and deployments.

AI Tools & Engineering Workflow (What We Expect) :

- Comfortable using tools such as GitHub Copilot, Cursor, ChatGPT, code search/refactoring assistants, and test-generation helpers.

- Ability to validate AI outputs with strong judgment : security, correctness, performance, and maintainability.

- Establish team guidelines for safe and effective AI usage (prompting patterns, review standards).

What Success Looks Like (First 90 Days) :

- Stabilize and improve key UI areas : performance, reliability, developer experience.

- Deliver at least 12 major features hands-on, end-to-end.

- Introduce or refine reusable UI patterns/components and raise code quality through reviews and mentorship.

- Improve build/test speed and establish practical AI-assisted workflows.