This role is for one of the Weekday's clients

Salary range: Rs 2000000 - Rs 2800000 (ie INR 20-28 LPA)

Min Experience: 4 years

Location: Remote (India), India, Bengaluru, NCR

JobType: full-time

We are looking for a passionate and experienced Senior JavaScript Engineer to join our team and contribute to the core JavaScript libraries that drive the functionality of our platform. These libraries are deployed on our customers’ websites and directly influence the experience of millions of users globally. This is a high-impact role with a strong focus on performance, scalability, and clean code.

Requirements

Key Responsibilities:

• Build and maintain high-performance, modular JavaScript libraries used across various projects.
• Write reusable, clean, and efficient code following modern best practices.
• Collaborate with the engineering team and contribute to open-source initiatives, technical blogs, and community discussions.
• Ensure optimal performance and compatibility across modern and legacy browsers.
• Own features end-to-end—from architecture to deployment and maintenance.

Requirements:

Technical Skills:

• Experience: 3–6 years in software development, with a strong emphasis on JavaScript.
• JavaScript Expertise: Deep knowledge of Vanilla JavaScript, HTML, and CSS.
• TypeScript: Practical experience using TypeScript in production-level codebases.
• Browser Internals: Solid understanding of the DOM, browser APIs, events, and canvas rendering.
• Optimizations: Strong focus on performance tuning and delivering fast, efficient user experiences.
• Modular Code: Experience in writing modular, maintainable code.
• Debugging: Excellent troubleshooting and debugging abilities.

Testing & Tools:

• Experience with test automation tools such as Cypress or similar frameworks.
• Commitment to test-driven development and code quality.

Soft Skills:

• A continuous learner who keeps up with evolving frontend trends.
• Team player with a collaborative mindset and a willingness to mentor and share knowledge.
• Strong communication skills and a proactive attitude.

What We Appreciate:

• A love for clean, performant code and solving tough problems.
• Enthusiasm for browser performance, cross-browser compatibility, and modern development tools.
• Contributions to open-source projects or technical writing are a big plus.

Tech Stack:

• JavaScript (VanillaJS)
• TypeScript
• HTML/CSS
• Webpack
• npm
• DOM APIs
• Core Web Vitals
• Cross-browser optimization