Infogain - Senior Full Stack Developer - eCommerce Applications

Description :

We are looking for a highly skilled Senior Full Stack E-Commerce Developer with 6- 9 years of experience in designing, developing, and scaling modern e-commerce platforms and customer-facing web applications.

The ideal candidate will possess strong expertise in React.js, TypeScript, Node.js, AWS Cloud Services, and modern web architecture.

The role involves building high-performance, scalable, and secure applications while collaborating with Product, UX, Engineering, and DevOps teams to deliver exceptional digital commerce experiences.

Key Responsibilities :

- Design, develop, and maintain scalable e-commerce applications using React.js, TypeScript, and Node.js.

- Build responsive, high-performance user interfaces with modern frontend frameworks.

- Develop reusable UI components and shared libraries for consistency across applications.

- Create robust backend services, APIs, and microservices to support business functionality.

- Ensure seamless integration between frontend and backend systems.

- Develop and enhance customer-facing shopping experiences including :

a. Product Catalog Management

b. Search & Filtering

c. Shopping Cart

d. Checkout Workflows

e. Order Management

f. User Account Management

g. Payment Integrations

h. Promotions & Discounts

- Optimize applications for speed, scalability, and conversion performance.

- Implement SEO-friendly and mobile-first development practices.

- Design and develop RESTful APIs and backend services using Node.js and Express.js.

- Build secure authentication and authorization systems using JWT and OAuth.

- Develop scalable serverless applications using AWS Lambda.

- Integrate third-party services such as payment gateways, CRM systems, logistics providers, and marketing platforms.

- Implement data validation, error handling, and API security best practices.

- Build and deploy applications on AWS cloud infrastructure.

- Utilize AWS services including :

a. AWS Lambda

b. Amazon S3

c. API Gateway

d. CloudWatch

e. IAM

- Implement serverless architectures for scalable and cost-efficient solutions.

- Collaborate with DevOps teams for deployment automation and monitoring.

Database Design & Management :

- Design and optimize database schemas for high-volume transactional systems.

- Develop and maintain applications using :

a. MongoDB

b. PostgreSQL

- Create efficient queries, indexing strategies, and data models.

- Build and maintain CI/CD pipelines using GitHub Actions.

- Automate testing, deployment, and release processes.

- Participate in infrastructure monitoring and incident management.

- Implement secure development and deployment practices.

- Write clean, maintainable, and well-documented code.

- Conduct code reviews and enforce coding standards.

- Implement unit testing, integration testing, and end-to-end testing.

- Troubleshoot production issues and perform root cause analysis.

- Work closely with Product Managers, UX Designers, QA Engineers, and Architects.

- Participate in technical design discussions and architecture reviews.

- Mentor junior developers and contribute to engineering best practices.

- Provide technical estimates and support sprint planning activities.

Required Technical Skills :

Frontend Technologies :

- React.js

- TypeScript

- JavaScript (ES6+)

- HTML5

- CSS3

- Responsive Web Design

- Redux / Context API

- Next.js (preferred)

Backend Technologies :

- Node.js

- Express.js

- REST APIs

- Microservices Architecture

- Server-Side Rendering (SSR)

Database Technologies :

- MongoDB

- PostgreSQL

- Database Design & Optimization

Authentication & Security :

- JWT Authentication

- OAuth 2.0

- Role-Based Access Control (RBAC)

- Secure API Development

- Application Security Best Practices

Cloud & DevOps :

- AWS Lambda

- Amazon S3

- API Gateway

- CloudWatch

- GitHub Actions

- CI/CD Pipelines

- Git Version Control

Preferred Experience :

- Experience building large-scale B2C or D2C e-commerce platforms.

- Exposure to headless commerce architecture.

- Experience integrating payment gateways such as Stripe, Razorpay, PayPal, or Adyen.

- Knowledge of caching technologies such as Redis.

- Experience with containerization technologies (Docker, Kubernetes).

- Familiarity with Agile/Scrum methodologies.

- Exposure to performance optimization, SEO, and web analytics.

- Bachelor's or Master's degree in Computer Science, Information Technology, Engineering, or related field.