JavaRoadmapFull StackCareerSpring BootReact
Java Full Stack Developer Roadmap 2026 — Month-by-Month Guide
Siva Prasad Galaba· Staff Engineer & Founder, CodeBegun·
A practical, month-by-month roadmap to become a job-ready Java Full Stack Developer in 2026. Covers Java, Spring Boot, React, SQL, DevOps, and placement prep.
## Java Full Stack Developer Roadmap 2026 Becoming a Java Full Stack Developer in 2026 does not require a CS degree or years of self-study. It requires the right sequence, focused practice, and real projects. This roadmap gives you exactly that — a clear path from zero to job-ready. We designed this based on what actually gets freshers hired in Hyderabad, Bengaluru, and Pune. ## Month 1 — Java Core Foundations **Goal:** Think like a Java developer. Write clean, object-oriented code. ### Topics to Cover - JDK setup, IDE (IntelliJ IDEA), first Java program - Data types, operators, control flow - Methods, arrays, Strings - Object-Oriented Programming: classes, objects, inheritance, polymorphism, abstraction, encapsulation - Interfaces, abstract classes - Exception handling: try-catch-finally, custom exceptions - Collections: ArrayList, LinkedList, HashMap, HashSet, TreeMap - Streams API and lambdas (Java 8+) - Java 21 features: records, sealed classes, text blocks ### Projects to Build - Student grade calculator (CLI) - Library book management system (OOP, Collections) - Simple banking app with file-based persistence ### Checkpoint Can you write a class hierarchy, use generics, handle exceptions, and process a list with streams? If yes, move on. ## Month 2 — Databases and Spring Boot **Goal:** Build a production-grade REST API connected to a real database. ### Topics to Cover - **SQL**: DDL, DML, joins, subqueries, aggregates, indexes, transactions - **MySQL**: setup, CRUD, foreign keys, normalization - **Spring Boot**: project setup with Spring Initializr, dependency injection, auto-configuration - **Spring Data JPA**: entities, repositories, JPQL, native queries - **Hibernate**: ORM basics, lazy vs. eager loading, N+1 problem - **REST APIs**: HTTP methods, status codes, request/response bodies, validation (Bean Validation) - **Spring Security**: basic auth, JWT tokens, role-based access - **Exception handling**: `@ControllerAdvice`, custom error responses ### Projects to Build - Student management REST API (full CRUD) - Todo app with authentication (JWT) - Product catalog API with search and pagination ### Checkpoint Can you build a secure, well-structured Spring Boot API with JPA in under 3 hours? That is the interview bar. ## Month 3 — React and Full Stack Integration **Goal:** Build a complete web application frontend that talks to your Spring Boot API. ### Topics to Cover - **JavaScript** (if rusty): ES6+, async/await, fetch API, destructuring - **React 19**: components, JSX, props, state, hooks (useState, useEffect, useContext, useReducer) - **React Router**: SPA routing, dynamic routes, protected routes - **API integration**: Axios, error handling, loading states - **Forms**: controlled inputs, validation, form submission - **TypeScript basics**: interfaces, types, props typing - **Bootstrap / Tailwind**: responsive layouts, grid, utility classes ### Projects to Build - React frontend for your Student Management API - E-commerce product listing with cart (React + Spring Boot) - Blog platform with auth (register, login, create/read posts) ### Checkpoint Can you build a React form, call your API, handle the response, and display data in a list — all from memory? Good. ## Month 4 — Real Projects and Placement Sprint **Goal:** Two portfolio-ready projects, 100+ LeetCode problems, 10 mock interviews. ### Portfolio Projects (pick two) - **E-Commerce Platform** — product catalog, cart, order management, payment mock, admin dashboard - **Job Portal** — company and candidate sides, resume upload, application tracking - **Hospital Management System** — appointments, doctor/patient management, reports - **Food Delivery App** — restaurant listings, orders, delivery tracking Each project must be: - Deployed (AWS free tier / Railway / Render) - On GitHub with a proper README - Demoed live in the interview ### DSA Practice - Arrays, Strings, HashMap problems (30 problems) - LinkedList, Stacks, Queues (20 problems) - Sorting, Searching, Two-pointer (20 problems) - Recursion, Trees (15 problems) - Dynamic Programming basics (15 problems) ### Interview Prep - Core Java concepts deep-dive - Spring Boot architecture questions - SQL query rounds - System design: URL shortener, parking lot, notification system - 10 full mock interviews with feedback ## DevOps Basics (Throughout) These need not be deep — just enough to deploy and impress: - **Git**: branching, merge, rebase, PR workflow - **Maven**: build lifecycle, dependency scopes - **Docker**: build image, run container, docker-compose - **Linux**: SSH, permissions, process management, logs - **AWS Free Tier**: EC2, S3, RDS, Elastic Beanstalk ## Tools Every Java Full Stack Developer Uses | Category | Tool | |---|---| | IDE | IntelliJ IDEA (Community) | | API Testing | Postman | | Database | MySQL Workbench, DBeaver | | Version Control | Git + GitHub | | Build Tool | Maven | | Containerization | Docker | | CI/CD | GitHub Actions (basic) | | Cloud | AWS (EC2, S3, RDS) | ## Common Mistakes to Avoid - **Skipping SQL** — every Java interview has SQL rounds. Practice joins and subqueries daily. - **No deployed project** — a GitHub link with no live demo loses you the offer. - **Framework-first learning** — without OOP and Java fundamentals, Spring Boot becomes a mystery box. - **Ignoring communication** — "explain your project architecture" is a standard question. Practice it. - **Not doing mock interviews** — the real interview feels completely different from solo study. ## How Long Does This Actually Take? Following this roadmap with 6–8 hours of focused daily practice: - **Bootcamp route** (full-time, 5 months): Job-ready - **Part-time route** (3–4 hours/day, 8 months): Job-ready - **Self-study weekend route** (2 hours/day, 18 months): Possible, but difficult without structure That gap is why structured programs with mentorship and deadlines produce placement results far faster than solo study. --- CodeBegun's 145-day Java Full Stack program follows this exact roadmap — with daily coding, real project mentorship, and a placement sprint. [View the full curriculum](/java-full-stack) or [chat with us on WhatsApp](https://wa.me/916301099587).
Siva Prasad Galaba
Staff Engineer & Founder, CodeBegun
Founder of CodeBegun. 15+ years building Java systems at companies like Crunchyroll. Teaching the next generation to code the way the industry actually works.
