Full Stack Developer (Java + React)
A Java full stack developer builds Spring Boot services and the React front ends that use them, common in large companies and fintech.
- Build REST services in Spring Boot
- Map data with JPA and write SQL
- Build React screens on top of the APIs
- Work with code review, testing and CI
- A Spring Boot API with a relational database
- A React app on top of it
- A tested, deployed full stack project
Where it leads: Senior engineer, backend lead, or architect on Java platforms.
Every skill, at the level the job needs
Updating… · change the level or company to see how it shifts
full-stack
core- HTML
- CSS
- npm
- Git commands
- Starting with git
- Tailwind
sql
core- Relational DB theory
- Relational Data Model
- RDBMS Benefits and Limitations
- SQL and Databases
- NoSQL DBs
- Basics SQL
react
core- Vite
- Functional Components
- JSX
- useCallback
- useRef
- useState
java
core- Basic Syntax
- Strings
- Calling methods
- Processing strings
- Lifecycle of a Program
- Operations on primitive types
spring-boot
core- Terminology
- Introduction to software architecture
- Why use Spring?
- Configuration
- Dependency injection
- IoC Container
git-github
core- git init
- What is Version Control?
- Why use Version Control?
- git config
- Local vs Global Config
- Git
datastructures-and-algorithms
core- JavaScript
- Introduction to Java
- Language Syntax
- Control Structures
- Pseudocode
- Pseudocode basics
What the levels mean
- L1 · AwareKnows what it is and when it's used
- L2 · BasicsCan use it with guidance
- L3 · WorkingUses it independently on the job
- L4 · StrongHandles hard cases, reviews others
- L5 · ExpertDesigns with it, teaches it
Interviews, by kind of company
Your route adds an interview track that matches the company you choose.
Large IT services firms: aptitude, fundamentals, technical and HR rounds.
Online assessment, coding rounds, a design round.
Hard timed coding rounds, system design, behavioural interviews.
Questions
What does a Full Stack Developer (Java + React) need to know?
Full Stack Developer, Java Developer, React Developer, Spring Boot Developer, SQL Roadmap at a working level, plus CSS, HTML, JavaScript Roadmap, Learn Git and GitHub. The skills section above lists every one with its level.
How long does it take to become a Full Stack Developer (Java + React)?
About 392 hours of study from scratch. At 10 hours a week that's roughly 40 weeks; anything you already know is skipped after the readiness test.
I already know some of this. Do I start from zero?
No. The optional readiness test finds what you already know and your route skips it.
Does the route change for product companies or senior roles?
Yes. Choose your level and the kind of company above: the skills and target levels adjust, for example deeper data structures and system design for product companies.
Other roles in the Full Stack track
They share many skills with this one, so progress carries over if you switch.
MongoDB, Express, React and Node.js.
MongoDB, Express, Angular and Node.js.
Python back end with a React front end.