Sr Principal Engineer - UI

🏢 About F5

F5 is a massively influential global technology leader relentlessly striving to bring a more optimized, deeply secure digital universe to life. Dedicated engineering teams worldwide empower leading organizations to craft, seamlessly secure, and dependably run monumental applications that continuously enhance humanity's digital interactions. Unwaveringly passionate regarding cybersecurity—extending from preventing consumer fraud directly to enabling global corporate innovation—F5 centers absolutely every action around its people. Featuring a heavily prioritized diverse community where immense talent thrives, F5 builds the future of secure application delivery.

🎯 The Role

Life operating inside F5's engineering hubs is incessantly dynamic. Poised strongly ahead of future customer demands, F5 is eagerly seeking an authoritative Senior Principal UI Engineer to fundamentally design and successfully implement intuitive, highly scalable features powering the immensely critical BIG-IP and BIG-IQ Central Manager platforms. Functioning in an impactful hybrid capacity in Hyderabad, you will be heavily responsible for defining overarching UI architectures managing monumental on-premises and vast multi-cloud operational complexities.

🛠️ Tech Stack

• Expert JavaScript & TypeScript
• Primary Frameworks (React & Angular)
• Advanced DOM elements (HTML5, CSS3, SASS/LESS)
• Testing Automation (Jest, Playwright, Cypress)
• Web Performance & Accessibility APIs (WCAG, ARIA)

💼 What You'll Do

• Partner continuously with elite engineering Architects to strategically define and comprehensively implement boundless UI architectures.
• Directly lead all structural design of reusable, highly optimized component libraries feeding massive internal design systems.
• Decisively drive the rigorous development of exceptionally complex UI functionalities protecting performance metrics across devices.
• Overwhelmingly optimize essential screen rendering, platform responsiveness, and baseline compliance covering overarching web accessibility.
• Set, mandate, and strictly enforce foundational code standards, development best practices, and critical guidelines for internal UI teams.
• Systematically evaluate trending UI mechanics—such as progressive WebAssembly (WASM) implementations and fragmented micro-frontend architectures.
• Heavily champion sweeping performance optimizations encompassing lazy loading, intelligent code splitting, and functional state management.
• Improve vast developer productivity directly via aggressive tooling updates (Linters, Advanced Build Suites, intricate UI CI/CD pipelines).

✅ What You'll Need

• Impeccable professional experience totaling 12+ highly active years supported by a solid Bachelor’s (or heavily preferred Graduate degree) oriented in Computer Science.
• Absolute, unmistakable expert-level programming proficiency utilizing modern JavaScript paradigms, TypeScript, native React, and Angular.
• A deeply thorough conceptual and practical understanding maneuvering HTML5, robust CSS3, and organized styling pre-processors (SASS/LESS).
• Strong historical command orchestrating fully component-based development architectures alongside isolated micro frontends.
• Proven operational experience comprehensively integrating expansive front-end designs alongside dense RESTful APIs and corresponding backend microservices.
• Established mechanical capability driving extensive automated UI testing schemas running frameworks strictly like Cypress, Jest, or equivalent Playwright suites.
• A powerful capacity to confidently influence broad technical directives, mentor talented senior squads, and organically drive programmatic consensus.