Javascript Enginner

**Role Overview**

**Responsibilities**
- Design and develop **JavaScript-based monitoring agents** that capture performance metrics, errors, and user interactions in the browser.
- Work with **browser performance APIs** (Navigation Timing, Paint Timing, Long Tasks, PerformanceObserver) to track key metrics.
- Implement support for **Core Web Vitals** (LCP, FID, CLS, INP) and other industry-standard KPIs.
- Ensure that monitoring agents are **lightweight, efficient, and non-intrusive**.
- Collaborate with backend/APM teams to **correlate frontend traces with backend monitoring data**.
- Implement error monitoring, crash detection, and **session replay integrations**.
- Keep up with latest **web performance standards and W3C specifications**.

**Must-Have Skills**
- **3+ years of professional JavaScript/TypeScript development experience**.
- Strong expertise in **browser APIs** and event-driven programming.
- Hands-on experience with **performance measurement and optimization in web apps**.
- Solid understanding of **Core Web Vitals** and web performance monitoring.
- Familiarity with **cross-browser compatibility** and web debugging tools.
- Experience with one or more frontend frameworks (**React, Angular, Vue**).
- Knowledge of **compression techniques (gzip, brotli)**.
- Exposure to **RUM or frontend monitoring tools** (New Relic, Datadog RUM, Dynatrace, Sentry, etc.).

Pay: ₹800,000.00 - ₹1,500,000.00 per year

**Benefits**:

- Health insurance
- Provident Fund

**Experience**:

- JavaScript: 3 years (required)

Work Location: In person