Full Stack Engineer

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

Location: Mohali

Employment Type: Full-time

Experience: 5+ years (minimum 2 years in travel domain preferred)

Job Summary:

We are seeking an experienced Senior Full Stack Developer to join our team and help design,

develop, and scale secure, high-performance web applications for the travel industry. You'll work across front end (React.js), back end (Node.js), and database layers, while architecting

microservices, integrating third-party travel APIs, and building webhooks for real-time data

flows. The ideal candidate understands the travel domain, embraces clean architecture, data

security, and loves solving complex problems with elegant code.

Key Responsibilities:

• Build modern, responsive, and feature-rich front ends using React.js, functional

components, and advanced state management (Redux / Context).

• Develop scalable back-end services and APIs in Node.js (Express.js / Nest.js), using a

modular, microservices-based architecture.

• Integrate external travel APIs (GDS, hotel/car/flight aggregators, or custom vendor APIs)

and build webhooks for real-time updates (e.g., booking confirmations, cancellations).

• Architect and implement secure data flows, including handling of PNR data, customer

profiles, and fare/rate data.

• Design and optimize normalized relational database schemas (PostgreSQL, MySQL)

and manage NoSQL collections (MongoDB) when needed.

• Optimize database performance with indexing, query tuning, and caching strategies

(Redis).

• Ensure application and data security: encryption, secure authentication (JWT, OAuth2),

validation, and adherence to PCI and OWASP best practices.

• Write unit, integration, and end-to-end tests to maintain code quality.
• Collaborate with product, QA, and design teams to translate complex travel business

requirements into scalable technical solutions.

• Participate in code reviews and mentor junior developers.
• Document technical decisions, API contracts, data models, and workflows.
• Monitor application performance and propose improvements for scalability, fault

tolerance, and cost efficiency. Required Skills:

Frontend Development (React.js):

• Strong experience with React.js, Hooks, Context API, Redux, and building modular UI

components.

• Proficiency in HTML5, CSS3, SCSS/SASS, and responsive design principles.
• Familiarity with build tools (Webpack, Babel, Vite) and frontend testing (Jest, React

Testing Library, Cypress).

Backend Development (Node.js & Microservices):

Solid hands-on Node.js with Express.js or Nest.js frameworks.

Experience designing RESTful APIs; knowledge of GraphQL is a plus.

Architecting applications using microservices for scalability and maintainability.

Practical experience consuming and integrating external travel APIs and building

webhooks.

Database & Optimization:

• Strong skills in designing normalized schemas, writing efficient SQL queries, and

optimizing relational databases (PostgreSQL, MySQL).

• Working knowledge of NoSQL databases (MongoDB) when appropriate.
• Experience with ORMs and query builders (Sequelize, TypeORM, Mongoose).

Data Security & Compliance:

• Implement encryption in transit/at rest, secure authentication flows (JWT, OAuth2), and

access control.

• Understanding of PCI compliance and secure handling of sensitive customer and

payment data.

• Familiarity with OWASP Top 10 and real-world mitigation strategies.

Process & Collaboration:

• Experience with Agile/Scrum, user stories, and technical estimation.
• Git-based workflows, pull requests, and code review practices.
• Clear technical documentation and communication skills.

Domain Knowledge (Travel):

• Understanding of booking flows, inventory/rate management, availability checks,

cancellations/amendments.

• Familiarity with travel concepts like PNR, GDS, fare/rate APIs, and vendor integrations.

Good to have:

• TypeScript experience.
• Experience with CI/CD (GitHub Actions, GitLab CI/CD, Jenkins).
• Containerization (Docker) and orchestration (Kubernetes).
• Cloud platforms (AWS, Azure, GCP).
• Experience with caching strategies for travel availability/rate data.