Senior Frontend Developer Job in Growisto Inc. & Zip Infosolutions Pvt Ltd.

Job Title: Senior Frontend Developer

About the Role:

As a Senior Frontend Developer, you will play a critical role in architecting and implementing high-performance web applications with advanced UI/UX considerations. You will collaborate closely with design and backend teams, ensuring that components and the overall application are both robust and easy to maintain. Your commitment to problem-solving, sophisticated design, and delivering quality products is key to your success in this role.

Key Responsibilities:

• Architect and implement complex, high-performance web applications with a strong focus on advanced UI/UX design principles.
• Translate intricate Figma designs into pixel-perfect, responsive interfaces.
• Lead cross-browser compatibility efforts and establish responsive design standards across the team.
• Design and maintain modular, scalable JavaScript architecture using modern ES6+ patterns.
• Apply advanced JavaScript concepts, such as closures, prototypes, and functional programming paradigms.
• Implement sophisticated event handling with optimization techniques for performance.
• Spearhead performance optimization strategies, focusing on core web vitals improvement.
• Establish frontend maintenance protocols and lead ongoing enhancement initiatives.
• Drive cross-functional collaboration between design and backend teams to ensure seamless integration.
• Develop and maintain comprehensive component libraries using modern CSS frameworks.
• Lead troubleshooting efforts for complex frontend issues and establish debugging protocols.
• Champion accessibility standards implementation and compliance across projects.
• Research and drive the adoption of emerging frontend technologies to improve overall development processes.
• Write reusable code and libraries (with appropriate documentation) to ensure easy future maintenance.
• Optimize websites and applications for fast loading speeds and high performance.
• Identify, troubleshoot, and resolve various website issues and coding problems.

Requirements:

Must-Have:

• 5+ years of professional frontend development experience.
• Expert-level JavaScript knowledge, including advanced concepts like closures, prototypes, event loop, and execution context.
• Proven mastery of HTML5, CSS3 (including preprocessors like SASS/LESS), and modern JavaScript (ES6+).
• Extensive experience implementing complex designs from Figma with pixel-perfect accuracy.
• Advanced understanding of DOM manipulation techniques, event delegation, and frontend performance optimization.
• Deep expertise with CSS layout systems such as Flexbox, Grid, and complex responsive design patterns.
• Strong experience building and maintaining applications that consume RESTful APIs.
• Comprehensive knowledge of cross-browser compatibility issues and the implementation of effective solutions.
• Proficiency with Git workflows, including branching strategies and CI/CD integration in collaborative environments.
• Demonstrated experience in establishing and maintaining frontend testing strategies (unit, integration, E2E).

Good to Have:

• Advanced web performance optimization expertise (Core Web Vitals, bundle optimization, code splitting, lazy loading).
• Experience with modern build tools and module bundlers (Webpack, Rollup, Vite).
• Knowledge of state management patterns and libraries.
• Experience with TypeScript in large-scale applications.
• Familiarity with frontend security best practices (e.g., CSRF, XSS prevention).
• Experience mentoring junior developers and leading technical initiatives.

Benefits:

• Limitless growth and learning opportunities.
• Opportunity to collaborate with multiple stakeholders at various levels of the organization.
• A collaborative and positive culture with a team that s as smart and driven as you.
• Guidance and mentorship from industry experts and renowned IIT alumni.
• A chance to make a direct impact on our strategy and growth.
• Eligibility for a relevant Shopify certification.