Senior Frontend Performance Engineer

1 day ago

Remote, India Anlage Infotech (I) Pvt. Ltd. Full time

About The Role

We are seeking a dedicated Senior Frontend Performance Engineer to focus entirely on optimizing the speed, responsiveness, and Core Web Vitals of our user-facing applications.

You will be responsible for defining and driving our performance budget, architecting solutions for faster load times, and ensuring a world-class user experience across all devices.

Key Responsibilities

Performance Strategy :

- Establish and maintain clear performance budgets (i.e., Largest Contentful Paint - LCP, First Input Delay - FID, Cumulative Layout Shift - CLS) and best practices across the engineering organization.

- Instrumentation & Analysis: Implement, configure, and manage Real User Monitoring (RUM) and synthetic monitoring tools.

- Analyze performance data to identify critical bottlenecks in JavaScript, CSS, and asset loading.

Optimization :

- Lead initiatives for critical rendering path optimization, code splitting, dynamic imports, image/media optimization, and advanced caching strategies (Service Workers, CDN).

Architecture :

- Collaborate with Architects and Product teams to review design decisions and ensure new features are performant by default (i.e., efficient data fetching, state management).

CI/CD Integration :

- Integrate automated performance testing and regression analysis into our Continuous Integration (CI) process.

Technical Skills (Must-Have) :

- Web Fundamentals: Expert knowledge of core web technologies (HTML, CSS, JavaScript) and browser rendering processes.

Framework Experience :

- Deep experience with a modern JavaScript framework like React, , or Vue.s, with a focus on optimization techniques specific to that framework.

Performance Tools :

- Expert proficiency with profiling tools (Chrome DevTools, WebPageTest, Lighthouse) and monitoring solutions (Datadog RUM, New Relic, or self-hosted RUM).

Bundlers & Tooling :

- Strong experience configuring and optimizing build tools (Webpack, Rollup, Vite).

Advanced JS :

- Practical knowledge of advanced JavaScript concepts (event loop, memory management, asynchronous patterns) and how they impact performance.

CI/CD & Git :

- Experience integrating performance checks into a modern CI/CD pipeline.

Qualifications :

- Bachelor's degree in Computer Science, Engineering, or a related technical field.

years of professional experience in frontend development, with at least 3 years dedicated to large-scale performance optimization initiatives.

- A strong portfolio or history of work that demonstrates quantifiable improvements in web performance metrics

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