Exp : 4-6 Yrs

Job location : Kolkata ( Hybrid mode)

Job Specs :

Role Overview :

Our Client is building the next generation of browser-based security and automation tools that intelligently adapt to any web application. In this role, youll work on the core technology that enables our platform to understand how websites function, analyze behaviors in real time, and automatically apply the right safeguards.

You will design extensible browser integrations, develop systems that model web application behavior, and build AI/LLM-powered pipelines that dynamically generate rules and configurations. This is a high-impact engineering position driving the foundation of our intelligent browser analysis capabilities.

What Youll Do :

- Build high-performance browser integrations (Chrome, Firefox, etc.) that interface with complex web applications.

- Develop systems that collect and interpret contextual data from target sitesstructure, behavior, interaction flow.

- Create adaptive automation layers enabling the platform to adjust behavior dynamically based on site characteristics.

- Design AI/LLM-driven pipelines that convert web insights into rules, policies, and configuration logic.

- Implement secure and efficient communication channels between browser components and backend analysis services.

- Ensure browser integrations remain reliable, safe, and performant across diverse and constantly evolving web ecosystems.

- Contribute to technical architecture and mentor engineers as the platform scales.

Required Skills & Qualifications :

- 5+ years of software engineering experience, including 2+ years with browser extensions or front-end automation tools.

- Strong expertise in JavaScript/TypeScript, HTML5, CSS3, and modern browser APIs.

- Hands-on experience with Chrome Extensions (Manifest V3), Firefox WebExtensions, or equivalent frameworks.

- Solid understanding of REST APIs, GraphQL, WebSockets, and data exchange standards.

- Familiarity with frontend frameworks like React or Angular.

- Experience integrating LLMs (OpenAI, Anthropic, or local models), prompt design, and AI-driven workflows.

- Back-end experience with Node.js, Python, or Go.

- Strong understanding of browser extension security (permissions, sandboxing, privacy).

- Exposure to CI/CD, automated testing, Docker/Kubernetes, and modern development pipelines.

- Excellent problem-solving skills and ability to thrive in fast-paced environments.