Principal UI Engineer
First seen by Alion on Sep 30, 2026.
Introduction :
Job Title : UI Architect
Overview :
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 and are on a mission to build a "World Class Engineering Team" with a high-performance culture.
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.
Job Description :
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 Skills & 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, and 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 timelines.
Preferred Skills & 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 :
- 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).
Success Metrics (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.
Diversity & Inclusion Statement:
We are committed to building a diverse and inclusive team and encourage candidates from all backgrounds to apply.
About Us:
SymphonyAI is building the leading enterprise AI SaaS company for digital transformation across the most critical and resilient growth industries, including retail, consumer packaged goods, financial crime prevention, manufacturing, media, and IT service management.
Since its founding in 2017, SymphonyAI today serves 1500+ Enterprise customers globally and has grown to 3,000 talented leaders, data scientists, and other professionals across over 30 countries.
Skills
TypeScript, Javascript, AngularJS, UI Component, React.js, Frontend Architecture, HTML5, CSS, Micro Frontends