SymphonyAI is at the forefront of innovation, leveraging cutting-edge artificial intelligence and machine learning technologies to transform industries and drive business growth. As a global leader in AI-powered solutions, we empower organizations to harness the full potential of data-driven insights. SymphonyAI enterprise applications rapidly deliver transformative business value across retail, CPG, financial services, manufacturing, media, Enterprise IT (SymphonyAI Summit) and the public sector. SymphonyAI combines unrivalled AI technology, vertical expertise and industry-specific data and insights into applications that drive the highest value for customers. We are one of the largest and fastest growing AI portfolios. We are on a mission to build a “World Class Engineering Team” with a high-performance culture.
Job Description
About the Role
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 1–2 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.
About Us
Why SymphonyAI:
- Be part of a fast-growing AI-driven enterprise transforming industries.
- Work with a collaborative, global finance team that values innovation and efficiency.
- Competitive compensation, flexible work environment, and opportunities for growth.