Stylios Online Shopping — B2C E-Commerce

Situation

Traditional shopping processes needed to be supported through an accessible web-based platform. From an engineering perspective, the project also required onboarding a junior engineer into a large, real-world Java web application with established architecture, coding standards, and development practices. Key challenges included:

• Understanding a large existing enterprise web application.
• Moving from academic programming practices to production-oriented engineering.
• Learning and applying Spring MVC.
• Understanding layered application architecture.
• Following strict Java coding conventions.
• Integrating backend modules with frontend views.
• Working effectively within an established development team.

Task

Build core functionality for a B2C online shopping platform, enabling customers to browse products and perform online shopping activities through a web application. The project also provided a transition from academic software development into a structured enterprise Java development environment.

Solution

Contributed to a standard Spring MVC Java web application, developing foundational backend functionality and integrating it with web views. The primary delivered module was the Authentication (Auth) module, covering:

• User login.
• User registration.
• Session management.
• Backend authentication flow.
• Frontend authentication views.
• Spring MVC request/response flow.
• Separation between application layers.

Contribution

I joined the project as a Junior Software Engineer and focused on learning the existing architecture while delivering assigned functionality according to established engineering standards. I:

• Read and analyzed the existing codebase.
• Reviewed project documentation.
• Studied the Spring MVC application lifecycle.
• Learned the project’s layered architecture.
• Followed established Java coding conventions.
• Developed backend authentication functionality.
• Integrated backend logic with frontend views.
• Implemented login and registration functionality.
• Worked with session management.
• Followed mentor guidance and established implementation patterns.
• Provided later part-time support for the system.

Technologies

• Languages: Java
• Frameworks / Libraries: Spring MVC, Hibernate
• Frontend: Bootstrap, HTML, CSS
• Database / Storage: MongoDB
• Cloud / Infrastructure: AWS, Linux
• DevOps / Source Control: Git

Results

• Successfully delivered the Authentication (Auth) module.
• Implemented user login and registration functionality.
• Implemented session-management functionality.
• Integrated Spring MVC backend functionality with Bootstrap-based frontend views.
• Developed according to the project’s Java coding standards.
• Successfully transitioned from academic development to real-world enterprise software engineering practices.
• Provided later part-time support for the application.