Principal UI Engineer

Overview

Lead the frontend architecture and development for Reltio's next-generation cloud platform, combining hands-on engineering with technical leadership across product teams.

What you'll do

• Lead the architecture, design, and development of complex enterprise-scale web applications.
• Drive frontend technology strategy across multiple product teams.
• Build reusable UI frameworks, shared component libraries, and design system integrations.
• Champion modern frontend engineering practices including performance optimization, accessibility, testing, observability, and security.
• Partner closely with Product Managers and UX Designers to translate complex workflows into intuitive user experiences.
• Collaborate with backend teams to design scalable APIs and end-to-end solutions.
• Influence technical decisions through architecture reviews and design discussions.
• Mentor senior engineers and help establish a culture of engineering excellence.
• Improve developer productivity through tooling, automation, CI/CD, and frontend platform initiatives.
• Stay current with emerging frontend technologies and evaluate their adoption where appropriate.
• Lead technical initiatives spanning multiple engineering teams.

What you'll need

• 12+ years of software engineering experience, with at least 8+ years focused on frontend development.
• Deep expertise in JavaScript, TypeScript, HTML5, and CSS3.
• Strong experience with React and modern frontend ecosystems.
• Proven experience designing large-scale SPA architectures.
• Strong understanding of state management (Redux, Zustand, Context API, MobX, or similar).
• Experience with micro-frontend architectures.
• Expertise in frontend performance optimization and web vitals.
• Experience building reusable component libraries and design systems.
• Strong understanding of REST APIs, GraphQL, and frontend-backend integration.
• Experience with automated testing using Jest, React Testing Library, Cypress, or Playwright.
• Familiarity with modern build tools including Vite, Webpack, Rollup, or ESBuild.
• Experience with CI/CD pipelines and cloud-native development environments.
• Strong debugging and performance profiling skills.
• Excellent communication and stakeholder management skills.

Nice to have

• Experience building enterprise SaaS products.
• Experience with cloud platforms such as AWS, Azure, or GCP.
• Familiarity with Kubernetes and containerized deployments.
• Experience with Node.js and backend development.
• Knowledge of security best practices, including OAuth2, JWT, SSO, and secure frontend development.
• Experience with accessibility (WCAG 2.1 AA) and internationalization.
• Exposure to AI-assisted developer tools and AI-powered user experiences.
• Contributions to open-source projects or technical communities.

Details

• Location: Bengaluru, India (Hybrid).
• Work mode: Hybrid.