Work Like a Developer

Test and debug with confidence, apply design patterns, ship with Docker and CI/CD, reason about system design and complete real projects.

See every topic of this stage in the full roadmap

Section 18Coming soon
Testing, Debugging & Code Quality
Unit tests with JUnit, mocks with Mockito, testing Spring applications, using the debugger and keeping code clean.
- Why Testing Matters
- JUnit 5 in Depth
- Test-Driven Development
- Mocking with Mockito
- Testing Spring Applications
- Debugging
- +3 more
See what it will cover: Testing, Debugging & Code Quality
Section 19Coming soon
Design Patterns & SOLID in Practice
The design patterns used in real Java code and in interviews, applied together with SOLID principles.
- SOLID Recap & Design Thinking
- Creational Patterns
- Structural Patterns
- Behavioural Patterns
- Patterns in the JDK & Spring
- Choosing & Refactoring to Patterns
- +2 more
See what it will cover: Design Patterns & SOLID in Practice
Section 20Coming soon
Docker, Deployment & CI/CD Basics
Package your application with Docker, run it with a database, automate builds and tests, and deploy it online.
- Why Containers?
- Docker Essentials
- Dockerising a Spring Boot App
- Docker Compose
- Integration Tests with Testcontainers
- CI/CD with GitHub Actions
- +3 more
See what it will cover: Docker, Deployment & CI/CD Basics
Section 21Coming soon
Backend Architecture & System Design Fundamentals
Layered architecture, caching, scaling and the system design basics asked in entry-level interviews.
- Thinking About Systems
- Backend Architecture
- API Design at Scale
- Caching
- Databases at Scale
- Load Balancing & Scaling
- +4 more
See what it will cover: Backend Architecture & System Design Fundamentals
Section 22Coming soon
Real-World Java Projects
Build complete backend projects from requirements to deployment, ending with a capstone for your portfolio.
- How to Build a Project
- Project 1: URL Shortener API
- Project 2: Personal Expense Tracker API
- Project 3: Event Ticket Booking API
- Capstone: Campus Placement Portal
- Capstone Review & Presentation
See what it will cover: Real-World Java Projects

Design Patterns & SOLID in Practice

The design patterns used in real Java code and in interviews, applied together with SOLID principles.

SOLID Recap & Design Thinking

Creational Patterns

Structural Patterns

Behavioural Patterns

Patterns in the JDK & Spring

Choosing & Refactoring to Patterns

+2 more

See what it will cover

Docker, Deployment & CI/CD Basics

Package your application with Docker, run it with a database, automate builds and tests, and deploy it online.

Why Containers?

Docker Essentials

Dockerising a Spring Boot App

Docker Compose

Integration Tests with Testcontainers

CI/CD with GitHub Actions

+3 more

See what it will cover

Real-World Java Projects

Build complete backend projects from requirements to deployment, ending with a capstone for your portfolio.

How to Build a Project

Project 1: URL Shortener API

Project 2: Personal Expense Tracker API

Project 3: Event Ticket Booking API

Capstone: Campus Placement Portal

Capstone Review & Presentation

See what it will cover