HeapCoders — Learn | Build | Grow

Software development · Open · 4–5 months · 22 weeks

Java Full Stack training — live online from anywhere.

Java Full Stack Developer

22-week path for 0–3 years: Git from week 1, Core Java, SQL, Spring Boot REST + JWT, React enough to ship a feature, Docker image, weekly DSA. The stack Indian service and product teams still hire.

Early bird till 30 Sep

Live online

₹31,999/-₹15,999/-

Offer valid until 30 September 2026

Audience

Who it is for

0–3 years · open to beginners

Freshers, career switchers, and people with up to 3 years who need Spring Boot, SQL, and interview DSA. If you already code, we compress core Java and spend more time on Spring, tests, and Docker.

A Spring Boot + React project you can demo, SQL you can write by hand, and Java + DSA rounds you have practised.

Roles this maps to

Java DeveloperFull Stack DeveloperBackend EngineerSoftware Engineer (Java)

Week by week

Roadmap & syllabus

Live online

Java 17Git / GitHubOOPs / CollectionsMySQLJDBCSpring BootSpring Data JPAREST + JWTJUnit / MockitoReactMavenDocker image
  1. 1

    Weeks 1–2

    Java + Git

    • JDK setup, types, methods, debugging
    • GitHub repo from day 1: commit, branch, PR habit
    • Daily coding drills
  2. 2

    Weeks 3–5

    Core Java for interviews

    • OOPs, interfaces, exceptions
    • Collections, equals/hashCode, generics
    • Streams basics; JDBC enough to hit MySQL
    • Threads: one class only
    • DSA: 2–3 problems each week from here
  3. 3

    Weeks 6–7

    SQL

    • Schema, PK/FK, joins, group by
    • Indexes as an idea, transactions
    • Hand-written queries (screening style)
  4. 4

    Weeks 8–13

    Spring Boot

    • Controller–Service–Repository, DTOs, validation
    • Global exception handling, JPA, pagination
    • Spring Security + JWT, profiles, logging
    • Postman collection + Swagger
    • JUnit + Mockito on the service layer
    • Microservices: two classes (idea only)
  5. 5

    Weeks 14–17

    React enough to ship

    • HTML, CSS, JavaScript crash
    • Components, hooks, routing, forms
    • Call your API; login + protected page
  6. 6

    Weeks 18–20

    Engineering

    • Maven, env files, code review
    • Docker image of the API
    • Simple VM / cloud run walkthrough
  7. 7

    Weeks 21–22

    Interviews + capstone

    • DSA sprint: arrays, strings, HashMap, linked list, stack, binary search, SQL
    • 6 mock interviews
    • Capstone demo to a panel

Build

Projects

  • JDBC mini + Git. Small data app by week 5 so Git and SQL are already a habit.
  • Job / student portal API. Spring Boot: login, roles, CRUD, search, JWT, tests.
  • React + live API. UI on that backend, README, architecture sketch, Docker image.

Intake

Batch

  • Live online
  • Next intake: 1 November 2026
  • Open to everyone; no IT degree required
  • Laptop with 8 GB RAM
  • Class plus about 2 hours practice a day

You get

Included

  • Batch seat
  • Recordings after every class
  • Daily tasks + weekend practice
  • Mentor doubt support
  • Resume + LinkedIn + GitHub review
  • Mock interviews in the program calendar