Full Stack Engineer
Weekday AI
Posted: April 6, 2026
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Quick Summary
A Full Stack Developer with experience in React, Node.js, and modern web technologies is required to design, develop, and maintain scalable, high-performance web applications.
Job Description
This role is for one of the Weekday's clients
Min Experience: 4 years
Location: Mumbai
JobType: full-time
We are looking for a highly skilled Full Stack Developer who will contribute to the design, development, and maintenance of scalable, high-performance web applications across both frontend and backend layers. The role requires strong hands-on expertise in React.js, Node.js, and modern web technologies, with the ability to lead technical execution and support end-to-end delivery.
The candidate will be responsible for building reusable UI components, developing and integrating backend APIs, and ensuring performance, security, and scalability of applications. Strong proficiency in JavaScript (ES6+), HTML, CSS, Tailwind, and adherence to UI/UX best practices is essential.
Requirements:
Key Responsibilities
• Take an active role throughout the entire software development lifecycle, including planning, coding, debugging, testing, and deployment.
• Design and develop responsive, reusable, and scalable frontend components.
• Create robust backend APIs and services using Node.js, including REST and GraphQL.
• Work with both SQL and NoSQL databases to design effective and efficient data models.
• Integrate third-party APIs and services seamlessly.
• Engage in code reviews and adhere to best engineering practices, ensuring high standards for quality, performance, security, and scalability.
• Collaborate closely with product managers, designers, and QA engineers to deliver smooth and cohesive product experiences.
• Implement responsive design, ensure cross-browser compatibility, and apply mobile-first development principles across all projects.
• Contribute to research and development efforts by staying current with emerging technologies and participating in innovation discussions.
• Provide on-call support during major events and critical system deployments.
• Represent the company in technical discussions, client meetings, and project reviews as necessary.
Background and Experience
• 4 to 8 years of practical experience developing and maintaining complex web applications using JavaScript (ES6+), React.js, Next.js, Node.js, and jQuery.
• Strong expertise in the React.js ecosystem, including Hooks, Context API, functional components, and state management libraries such as Redux, MobX, or Zustand.
• Established experience with Node.js and backend frameworks like Express or Fastify.
• Familiarity with Next.js and experience in building and consuming RESTful APIs is desirable.
• Deep understanding of application scalability, performance optimization, and maintainability.
• Experience with cloud platforms (preferably AWS), Redis caching, and continuous integration/continuous deployment (CI/CD) pipelines.
• Knowledge of Agile methodologies and familiarity with project management tools such as JIRA.
• Strong grasp of responsive web design, cross-browser compatibility, and UI/UX best practices.
• Hands-on experience integrating social media APIs like Facebook, Twitter, and Instagram, as well as working with XML and JSON data formats.
• Additional experience with mobile optimization and frameworks like jQuery Mobile is a plus.
• Excellent communication and teamwork skills, coupled with a proactive and solution-focused attitude.
• Experience working with databases such as MongoDB, DynamoDB, PostgreSQL, and MySQL.
• Proficiency with Git, CI/CD workflows, and Agile development processes.
Other Competencies
• Problem Solving – Possesses a solution-driven approach and delivers effective resolutions to key challenges.
• Strategic Thinking – Aligns with the company’s vision to achieve short-, medium-, and long-term objectives.
• Communication – Demonstrates clear understanding and articulation, presenting well-reasoned arguments.
• Sporting Knowledge – Engages with sports either as a follower or participant, has a basic understanding of rules, and is aware of major sporting events and athletes.