Full Stack Developer (Next.js)

Welatino Traveltech LLP; Dadri; On-site; INR 1,200,000 - 1,800,000; Full time

Job summary

Welatino Traveltech LLP is hiring a Full Stack Engineer to work across frontend and backend, building scalable web apps.

You'll collaborate with product managers, UI/UX designers, QA, and other developers to design, deploy, and maintain feature-rich software in an Agile/Scrum environment. The stack includes Node.js, Next.js, MongoDB, PostgreSQL, MySQL, and modern UI frameworks.

Qualifications

• 5–6 years of professional experience as a Full Stack Web Developer.
• Experience with REST APIs, API integration, and backend development.
• Experience with MongoDB, PostgreSQL, or MySQL.
• Strong frontend skills with responsive web design and modern UI frameworks.
• Familiarity with Git, GitHub/GitLab, and collaborative development workflows.
• Familiarity with CI/CD, Docker, cloud platforms such as AWS, Azure, or GCP is a plus.
• Knowledge of GraphQL, Microservices, WebSockets, or Redis is an added advantage.
• Experience with testing frameworks such as Jest, Cypress, or Playwright is preferred.
• Excellent analytical, debugging, and problem-solving skills.

Responsibilities

• Build responsive frontend components using HTML5, CSS3, and UI libraries.
• Develop secure backend services using Node.js and Express.js.
• Design, build, and integrate RESTful APIs, third-party APIs, and authentication systems using JWT and OAuth.
• Work with MongoDB, PostgreSQL, and MySQL, ensuring efficient data design and queries.
• Implement SSR, SSG, and leverage Next.js App Router for performance.
• Manage application state using Redux, Zustand, or Context API.
• Collaborate with cross-functional teams in an Agile/Scrum environment.
• Participate in code reviews, technical discussions, and architecture planning.
• Troubleshoot production issues and improve reliability and performance.
• Write clean, maintainable, well-documented code following best practices.

Skills

REST APIs

API integration

MongoDB

PostgreSQL

MySQL

Frontend development

Responsive design

UI frameworks

Git/GitHub/GitLab

CI/CD

Docker

Cloud platforms

GraphQL

Microservices

WebSockets

Redis

Testing frameworks

Tools

Node.js

Express.js

Next.js

Redux

Tailwind CSS

MUI / Bootstrap

JWT / OAuth

Job description

As a Full Stack Engineer, you'll work across both frontend and backend development, building high-performance, secure, and scalable applications or website. You'll collaborate with product managers, UI/UX designers, QA engineers, and fellow developers to design, develop, deploy, and maintain feature-rich web applications. This role is ideal for someone who enjoys solving complex technical challenges, writing clean and maintainable code, and contributing to architectural decisions.

Key Responsibilities

• Build responsive, reusable, and high-performance frontend components using HTML5, CSS3, Tailwind CSS, Material UI (MUI), or Bootstrap.
• Develop secure and efficient backend services using Node.js and Express.js.
• Design, build, and integrate RESTful APIs, third-party APIs, and authentication systems using JWT and OAuth.
• Work with databases including MongoDB, PostgreSQL, and MySQL, ensuring efficient database design and query optimization.
• Implement Server-Side Rendering (SSR), Static Site Generation (SSG), and leverage the Next.js App Router for optimized application performance.
• Manage application state using Redux, Zustand, or Context API.
• Collaborate with cross-functional teams to deliver high-quality software in an Agile/Scrum environment.
• Participate in code reviews, technical discussions, and software architecture planning.
• Troubleshoot production issues and continuously improve application reliability and performance.
• Write clean, maintainable, and well-documented code following industry best practices.

Required Skills

• 5–6 years of professional experience as a Full Stack Web Developer and Web development.
• Hands-on experience with REST APIs, API integration, and backend development.
• Experience with MongoDB, PostgreSQL, MySQL, or other relational and NoSQL databases.
• Strong understanding of frontend development, responsive web design, and modern UI frameworks.
• Experience with Git, GitHub/GitLab, and collaborative development workflows.
• Familiarity with CI/CD, Docker, cloud platforms such as AWS, Azure, or GCP, and deployment best practices is a plus.
• Knowledge of GraphQL, Microservices, WebSockets, or Redis is an added advantage.
• Experience with testing frameworks such as Jest, Cypress, or Playwright is preferred.
• Excellent analytical, debugging, and problem-solving skills with a strong focus on delivering quality software.

Why Join Us?

You'll have the opportunity to work on exciting products using modern technologies, collaborate with talented engineers, and build scalable applications that make a real impact. We offer a collaborative work culture, continuous learning opportunities, career growth, and the chance to work with the latest tools and frameworks in full-stack development.