FullStack Developer

Job Title: Full Stack Developer (Node.js + React.js)

📍 Location: Gurgaon (On-site)

🕒 Experience: 5+ Years

🕒 Working Days: 5 Days(Mon-fri)

Job Summary:

We are hiring a passionate and experienced Full Stack Developer proficient in Node.js and React.js for our client. The ideal candidate should have solid experience in designing scalable systems, writing optimized code, implementing role-based access control, handling task prioritization, and building robust web applications.

Key Responsibilities:

• Design scalable user management systems with role-based access and authentication.
• Develop backend services and REST APIs using Node.js.
• Build dynamic and optimized front-end applications using React.js and Redux.
• Handle async operations, task queues, and implement retry and prioritization logic.
• Optimize React components for performance using hooks and memoization.
• Ensure secure and scalable system design with proper error handling and authorization flows.
• Apply JavaScript concepts like closures, event loop, and async patterns in real-world scenarios.
• Collaborate with DevOps for basic CI/CD and deployment processes.

Mandatory Technical Skills:

• Frontend: React.js, Redux, JavaScript (ES6+)
• Backend: Node.js, Express.js
• Authentication & Authorization: JWT, OAuth2, Role-Based Access Control (RBAC)
• Task Management: Async/Await, Promises, Retry Mechanisms
• Database: MongoDB or PostgreSQL
• Version Control: Git

Soft Skills:

• Strong problem-solving and system design skills
• Ability to work independently and in a collaborative team
• Clear communication of technical ideas
• Ownership of tasks and components end-to-end

Focus Areas:

• System Design (User Management, Fault Tolerance, Load Distribution)
• JavaScript Core Concepts (Closures, Scope, Event Loop)
• React Optimization & Hooks
• Node.js Architecture & Async Programming
• Task Prioritization and Retry Logic

Beyond strong technical ability and cultural fit, we are looking for someone who demonstrates:

• Minimum 1 year of professional web development experience
• A portfolio showcasing real-world projects or contributions (personal or professional)
• Strong foundation in HTML, CSS, and JavaScript, with working experience in modern frameworks
• Practical experience with React (mandatory)
• Ability to build responsive, user-friendly interfaces with attention to UX best practices
• Experience integrating APIs and working with JSON-based data
• Familiarity with version control systems such as Git
• Basic understanding of backend concepts, preferably with exposure to Node.js, Java, or Python
• Ability to debug, troubleshoot, and improve existing codebases
• Good understanding of performance optimization and cross-browser compatibility
• Strong time management skills with the ability to handle multiple tasks effectively
• Excellent communication and teamwork skills, with a proactive and learning-oriented mindset

Job Description

We are looking for a Full Stack Developer. You'll be part of a cross-functional team that's responsible for the full software development life cycle, from conception to deployment. As a Full Stack Developer, you should be comfortable around both front-end and back-end coding languages, development frameworks, and third-party libraries. You should also be a team player with a knack for visual design and utility.

Responsibilities

Work with development teams and product managers in agile methodology

Design client-side and server-side architecture

Build the front-end of applications through appealing visual design

Develop and manage well-functioning databases and applications

Write effective APIs

Test software to ensure responsiveness and efficiency

Troubleshoot, debug and upgrade software

Create security and data protection settings

Build features and applications with a mobile responsive design

Qualifications Skills

Proven experience as a Full Stack Developer or similar role.

Experience in developing web applications using Node.js, React.js, MySQL, AWS services.

Knowledge of multiple front-end languages and libraries (e. g. HTML/ CSS, JavaScript, XML, jQuery).

Knowledge of multiple JavaScript frameworks (e. g. React, Angular, Node.js ).

Familiarity with databases (e. g. MySQL, Mongo DB), web servers (e. g. Apache), and UI/UX design.

Excellent communication and teamwork skills.

Responsibilities:

• Collaborate with the project team to gather requirements and understand user needs.
• Design and develop web applications using the MERN stack.
• Write clean and efficient code for both the front-end and back-end.
• Ensure the creation of responsive and cross-browser compatible web applications.
• Optimize applications for speed, performance, and scalability.
• Debug and troubleshoot issues, and participate in code reviews.
• Develop and maintain RESTful APIs for front-end interactions.
• Integrate third-party libraries and APIs when required.
• Keep up-to-date with the latest web development trends and best practices.
• Conduct unit and integration testing to ensure code quality.
• Collaborate with team members and stakeholders to meet project deadlines.
• Document code and technical specifications.
• Participate in knowledge sharing and continuous learning within the team.

Requirements:

• A Bachelor's degree in Computer Science, Engineering, or a related field is preferred, but not mandatory.
• A minimum of 2 years of hands-on experience as a MERN Stack Developer.
• Proficiency in Node.js and Express.js for building the back-end of web applications.
• Strong knowledge and experience in React.js for front-end development.
• Expertise in MongoDB for database design and management.
• Strong understanding of JavaScript, ES6+
• Familiarity with RESTful API development and integration.
• Ability to work with HTML, CSS, and responsive design principles.
• Experience with version control systems, such as Git.
• Problem-solving skills and an aptitude for learning new technologies.
• Strong communication and teamwork skills.

Responsibilities:

• Collaborate with cross-functional teams to design, develop, and deliver robust and scalable web applications using the MERN stack (MongoDB, Express.js, React.js, Node.js).

• Translate user requirements and wireframes into ecient and responsive front-end components while ensuring high performance and usability.

• Develop and maintain server-side logic using Node.js and Express.js, ensuring smooth integration with the front-end components.

• Design and implement data models, schemas, and queries for MongoDB, and manage database interactions effectively.

• Write reusable, testable, and efficient code following best practices and coding standards.

• Perform unit and integration testing of both front-end and back-end components to ensure reliability and quality of the application.

• Troubleshoot, debug, and resolve issues that arise during development, testing, and deployment phases.

• Stay up-to-date with industry trends and technologies, and proactively suggest improvements to enhance application performance, security, and maintainability.

• Participate in code reviews, provide constructive feedback, and mentor junior developers when necessary.

• Contribute to the continuous improvement of development processes, tools, and methodologies.

Skills required – Javascript,Mongodb,Angularjs,Nodejs

Level:P1-Exp -1-2 years

Location – Pune

Skills Required

• 8+ years of industry work experience
• Proven experience as a Full Stack Developer or similar role
• 3+ years of web application development with JavaScript as full stack
• Full stack experience designing and building scalable applications from end-to-end 
• Excellent JavaScript / Typescript skills
• Strong proficiency in React (hooks knowledge is plus)
• Strong proficiency in Nodejs
• Good HTML5 / CSS3 skills with expertise on responsive web design 
• Must have Design and development experience in Micro services using NodeJS and TypeScript
• Experience with NoSQL databases such as MongoDB, mongoose, aggregation framework and Redis 
• Experience with Web sockets and related frameworks (e.g. Socket.IO) 
• Experience in using and developing GraphQL APIs
• Experience in performance tuning
• Knowledge of code versioning tools such as Git, Mercurial or SVN.
• Open minded to take up any challenge, research and provide solutions 
• Great attention to detail
• Testing libraries – jest, testing-library is plus
• TDD / BDD experience is plus
• Experience with AWS, K8S, CI/CD is plus
• Familiar with SDLC methodologies like SCRUM, AGILE, Continuous Integration

• Design – Analyze, design & document the system / solution based on the business needs which is scalable, resilient and maintainable with low overhead for both client and server side
• Problem solving – Solve the challenges and problems faced by team by guiding and team with best practices
• Coordinate - Communicate system requirements to developers; explain system structure to them and provide assistance
• Code Reviews – Perform code reviews 
• Planning – Plan and assign tasks to team members
• Develop – Develop micro services and micro frontends

Work Environment Details:

Founded in 2011 and trusted by companies across 70 countries and more, KnowledgeHut is the skills solutions provider that organizations and individuals the world over count on to innovate faster and create progress.
We help technologists master their craft and take control of their careers. We empower businesses everywhere to build adaptable teams, speed up release cycles and become scalable, reliable, and secure.  
Our mission to democratize technology skills is what drives us, and our values are at the helm of how we work together. We thrive in an environment with creativity around every corner, challenges that keep us on our toes, and peers who inspire us to be the best we can be.  
If you have the development skills required and are excited to come to work every day knowing you’re helping our customers build the skills that power innovation, we want to hear from you!

• Participate in requirements
• Maintain and improve web Design mobile-based web features.
• Work closely with Scrum team to ensure quality throughout the entire software development
• Maintain high standards of software quality by establishing, adopting and following good practices and processes
• Monitor systems to ensure they meet both customer needs and business goals
• Solve problems by crafting software solutions using maintainable, testable and modular code
• Collaborate within a team by participating in code reviews, pairing sessions, architecture discussions and planning

• Write robust, testable code, along with unit, functional, acceptance and/or user tests to validate every change
• Challenge your fellow team members to grow and enhance our team with new, diverse talent
• Mentor interns and other software engineers to grow their technical skills
• Work closely with Scrum team to ensure quality throughout the entire software development cycle.
• Identify and propose dev toolsets to enhance and extend the dev team’s capabilities & efficiency
• Manage business context and pressures around quality and time to market
• Stay up-to-date on emerging technologies