Java developer Course: From Zero to Hired
Java developer Course From Zero to Hired
Perfect for newbies
90%
of our students start with no technical background
Course updated in 2025
100%
industry-relevant curriculum built to meet employer expectations
4,500+ employed grads
rating based on Google reviews
Java developer: Salary
$2,500
+22%YoY salary growth. Source: DOU
Did you know?
Every time you use a website or app, you benefit from their work. Java developers write and maintain Java code, develop robust applications, work with various frameworks, and ensure high performance and scalability. Additionally, they manage databases and server-side logic. Impressive, right?
Employment in focus
We share the same goal — get you hired. With 20% theory and 80% practical tasks, we make it happen.
Market experts as your mentors
Mentors help you learn new topics, review your tasks, point out mistakes, and do live Q&A sessions.
Platform that has it all
Learn through tutorials, interactive tasks, AI quizzes, and group projects — all in one place.
Your perks in every course
Job Referrals
Get access to job openings from our partners before they hit the market.
English lessons
Gain skills to pass interviews and bond with your team.
Job search tips
Craft cover letters and resumes that land interviews.
Job tracker
Easily apply for jobs and track every step of your job hunt.
Mock interviews
Practice for real-world interviews and build your confidence.
*You can buy English lessons separately.
FORMAT COMPARISON
Which studying format suits you?
Weekdays, 9 am - 6 pm
In your free time
9-6 pm, Mon-Fri
Study at your own pace
Pay after you get a tech job
Get refunded if no tech job
This might be your CV
Marta K.
Java developer
Skills
- Develop with core Java concepts
- Utilize Java 8–19 features (streams, lambda expressions, new APIs)
- Implement data persistence using Hibernate ORM
- Write efficient SQL queries and manage databases
- Create web applications with Spring Boot
- Handle multithreading for optimized data processing
- Understand web protocols and architecture
- Work with version control using Git and command-line tools
Technologies
90%
of Mate grads entered the tech field for the first time
What's covered
Course roadmap
Java Basics
11 topics
Java Basics Extended
7 topics
Eager to improve your Java proficiency? Get ready for type casting, switch case, classes, as well as a more advanced look at classes, arrays and methods. Oh, and a little extra, too 🤫
Topics
- Type Casting
- Arrays Extended
- Switch Case
- Classes
- Classes Advanced
- Methods Advanced
- Practice
Git and Terminal
5 topics
Terminal is an important tool for any developer, so it's high time for you to exercise basic commands! You'll start using a Git version control system, too.
Topics
- Environment Setup
- Command Line Basics
- Git Basics
- Working With Branches
- Working With Remote Repo (GitHub)
Course Fundamentals
4 topics
We want you to join the course prepared and move fast with the group when it starts. Doing tasks will increase your productivity during the course and in the long run help you be employed in a better company with a higher salary.
Topics
- Intro
- Java and IntelliJ Idea
- Maven
- Checkstyle and Review process
Java Core
26 topics
A behemoth of a module. We'll introduce you to Java 8 through 19, memory, wrappers, strings, abstract classes, bit manipulation, hashcode, patterns... just countless fascinating topics!
Topics
- How to Solve Tasks
- Memory, Wrappers, String
- Bit Manipulation
- OOP
- Abstract Class vs. Interface
- Exception
- Files
- Equals, Hashcode, and Clone
- Patterns and Recursion
- Generics
- ArrayList
- LinkedList
- PECS
- HashMap
- Array Practice
- Immutable
- Set, Queue, Stack, and Comparator
- Java JUnit
- Java 8 — Part 1
- Java 8 — Part 2
- Java 8 — Part 3
- Java 9-19 Improvements
- Stream API Practice
- Java SOLID
- Java Dependency Injection
- Logger
SQL Basics
11 topics
Semantically speaking, SQL closely resembles English, so you are in for a swift acquisition. We'll learn to use it with databases, to group, filter, sort and source data at wish.
Topics
- Introduction to SQL
- SELECT Statement
- WHERE Clause
- NULL Value, LIKE, BETWEEN, and IN Operators
- ORDER BY, LIMIT, DISTINCT Clauses
- Aliases
- Aggregate Functions
- GROUP BY Clause
- JOIN Clause
- Functions
- HAVING Clause
Hibernate
14 topics
If JDBC is cool, then Hibernate is even cooler. It's time to get new knowledge about your database interactions, delve into the ORM frameworks, and... well, become a Java database pro.
Topics
- Database Intro
- JDBC Intro
- Hibernate Entities and Transactions
- Entity Relations and Life Cycle
- JPA and Cascade Types
- Working With Lazy Initialization
- Criteria API
- Transaction Isolation Levels
- N+1 Problem
- Database Change Management Tools
- SQL Practice
- Hibernate Inheritance
- Hibernate Cache Levels
- Performance Improvement
How the Web Works
6 topics
We interact with the Internet day by day, and yet, few know how it all works. If you don't, either — we've got your back. We'll explore the OSI model, HTTP, encryption, APIs and security issues.
Topics
- Introduction to the Web
- OSI Model
- HTTP
- API Interface
- Encryption
- Security in the Web
Spring Boot
20 topics
Spring Boot is like Spring, but on another level. There's no need for manual server configuration, nor data source and dependency setup. It's *the* time savior for Java developers.
Topics
- Spring Boot Intro
- Spring Bean Lifecycle
- Spring Boot Web
- Spring Boot Web: DTO
- Spring Boot Web: Mappers in Details
- Spring Data JPA
- Criteria Query in Spring Boot
- Spring Transactional
- GlobalExceptionHandler and Data Validation
- Pagination, Sorting, Swagger
- Working With Third-Party API
- Security Basics
- Spring Boot Security
- JWT
- Spring Boot Practice
- Docker in Spring Boot
- Spring Boot Testing
- Deploy the Project to AWS
- Spring Boot AOP
- Portfolio Project
Team Project
7 topics
In 4 weeks, you will create a product from scratch in teams with colleagues from other areas, following Scrum methodology, and present the results to your mates. In the end, you will have another project to add to your resume and gain invaluable real-world experience
Topics
- Week 0: Team Project. Intro
- Week 1: Jira Environment
- Week 2: Status Check
- Week 3: Estimates
- Week 4: How to Demo Your Work
- Final Week: Retrospective
- Team Project for Employment
Java Multithreading
9 topics
Multithreading allows processing larger amounts of data faster and more efficiently, thanks to a more efficient CPU use, but comes with its own set of challenges. Let's address them!
Topics
- Multithreading intro
- Threads
- JMM (Java Memory Model)
- Thread manipulation
- Locks
- Deadlock
- ExecutorService and Future
- CompletableFuture
- Concurrent collections
Employment
8 topics
Ready to enter the tech market? Well... we'll get you ready — with a great resume, cover letter, a LinkedIn profile and mock interviews. Recruiters are in for a true discovery!
Topics
- Employment Roadmap
- Preparing Your Resume
- Interview Preparation
- Cover Letter Preparation
- Google, LinkedIn, DOU, Djinni
- How to Find and Apply for Vacancies
- Job Search Tips: Talking to Recruiters
- Work details FAQ
Kotlin
10 topics
Dive into the exciting world of Android app development with our Kotlin module! Learn the essentials of this innovative language and take your first step towards creating cutting-edge Android applications.
Topics
- Kotlin Intro
- Variables, Data Types, and Operators
- Nullability
- Functions
- Collections, Conditionals, and Loops
- Classes (OOP)
- Classes (Advanced)
- Extensions
- Exceptions and Files
- Standard Functions and Other Concepts
JavaScript Basics
14 topics
Discover the programming language best suited for beginners. We'll kick off with strings, functions, conditionals, loops, arrays and a few more!
Topics
- Introduction
- Your First JavaScript Program
- Main Concepts
- Numbers
- Strings
- Boolean
- Functions
- Conditional Operators
- Arrays
- Loops
- String Iteration
- Strings Methods
- Working With Arrays
- Get Ready for the Interview
Algorithms and Data Structure
11 topics
Don't go running just yet, algorithms simply need some taming. Data structures, too: we'll take on arrays, linked lists, stacks, queues, hash maps and sets... among other things.
Topics
- Module Overview
- Algorithms complexity
- Arrays
- Binary search
- Two pointers
- Linked lists
- Stack
- Queue
- Trees
- Binary search tree
- Priority queue
HTML + CSS Basics
15 topics
Next up: introduction to HTML and CSS. Find your way around fonts, semantics, responsiveness, selectors and specificity, media queries, links, and forms.
Topics
- HTML Basics
- CSS Basics
- Colors and Fonts
- Box Model Basics
- Semantic Basics
- Responsiveness Basics
- CSS Selectors
- Pseudo-Elements and Pseudo-Classes
- Specificity
- Links and URLs
- Images
- Media Queries
- Forms
- Position
- Extra Topics
Angular
1 topic
Angular is a JS framework used mostly to create scalable, sing-page web apps. We'll learn how to use it, beginning with forms through components, observables, state management, and more.
Topics
- Angular Basics
Communication and Stress Management
6 topics
This module is designed to enhance your communication skills and overall soft skills. You’ll learn how to communicate effectively, feel confident during job interviews and public speaking, master techniques to manage stress, and much more. The best part? The module includes 28 practical tasks that will significantly boost your skills and help you see noticeable progress.
Topics
- Introduction to Communication & Stress Management
- Confidence Building and Stress Management
- Diction, Filler Words Reduction, and Body Language
- Public Speaking
- Job Interview
- Written Communication
Career Development
7 topics
Landing a first job is quite an achievement, but you can't rest on your laurels! Here, we'll get familiar with career development strategies, identify key areas for personal development and equip you a few relevant tools.
Topics
- Mastering Your Probation Period
- PDP and Career Plans
- Salary Review Strategies
- Recruiter Outreach
- How to Find a New Job?
- How to Talk About Your Previous Work Experience?
- Career Knowledge Base
192
Topics
2
Projects
From zero to hired
What’s your path to becoming a Java developer?
Land your job in tech
Start your new job as a Java developer.
Book a call
Do I need a technical background? When can I start?
- We'll answer all your questions
- Help you choose the right course
- Provide exclusive offers
Skill level after the course
Mate graduates ace technical interviews
Who will guide you?
Coaches
Mentors
English Teachers
Education coordinators
Employment coordinators
Book a call
Let's get in touch
- We'll answer all your questions
- Help you choose the right course
- Provide exclusive offers
Faq
Have some more questions? We have the answers.
How do full-time and flexible formats differ?
In the full-time schedule, you study online from 9 AM to 6 PM, Monday to Friday. You’ll attend webinars, do practical tasks, and get help from mentors. There are group video calls four times a week in the afternoon. This intense schedule is not good if you want to work at the same time.
The flexible schedule lets you learn at your own pace. You decide when and how many hours to study. Mentors are available to help you, and you can chat and join video calls with classmates. Plus, you get lifetime access to the course, so you can learn whenever you want.
Can I fit studying at Mate with other activities?
In the flexible format, you can balance your studies with work or school. You set your own pace and receive support from our mentors throughout the course.
In the full-time format, it’s hard to combine studies with work or school due to its intensity. You’ll need to fully commit, studying from 9 am to 6 pm, Monday to Friday.
Will I get a certificate upon completion?
Sure! After finishing our course, you'll get a certificate. More than 4,500 of our graduates use it to show their skills on LinkedIn and other social media. But our main focus is helping you find a job, and we'll do everything we can to support you in that.
How do I choose a profession?
Do I need math or tech background to enroll?
No, you don’t need math or a technical background to enroll. In fact, 9 out of 10 Mate students come from non-technical backgrounds. Our job is to teach you the skills you need and help you land a job in tech.
How do I enroll?
To enroll in the full-time course, start by filling out an application and taking a short logic test with 15 questions. If your English level is below Pre-intermediate, we'll ask you to make a short video about yourself. Once we check that your English is good enough for learning, you can move on with your enrollment and set up an interview with our manager.
For the flexible course, just send an application. Our manager will reach out to explain the course details and help you pick the best option. You’ll get access to the course right after you pay.
Are there any age limits for this course?
You can apply for the full-time course starting at age 16 with your parents' permission. For the flexible course, you can begin if you’re at least 15 years old.
The employment guarantee applies if you reach the legal working age in your country by the time you finish the course.
How are you so sure that l'll find a job?
For over 10 years, we’ve been helping people kickstart their tech careers — and we’ve gotten pretty good at it.
Our courses are built around what companies actually want, with tons of hands-on practice to get you job-ready. And you’re never on your own — we’ll guide you every step of the way, from polishing your resume to nailing your interviews.
The best part? 80% of our grads land a tech job just a few months after finishing the course.
How does money-back guarantee work?
For full-time graduates, you only start paying for your education after finding a tech job. The payment is 12% of your net salary for 36 months. If you don’t get a job, you pay nothing.
If you finish the flexible course, actively search for a job with our support for 16 weeks, and don't receive any offers, you can get a full refund.
What's the schedule on full-time?
The full-time schedule combines theory lessons, practice, and Q&A sessions:
9:00 AM - 10:00 AM — Algorithms 10:00 AM - 11:30 AM — Theory 11:30 AM - 12:30 PM — Break 12:30 PM - 2:00 PM — Practice 2:00 PM - 2:30 PM — Q&A session 2:30 PM - 5:00 PM — Practice 5:00 PM - 6:00 PM — Q&A session
What jobs can I get after finishing the course?
Graduates of the Java developer course often land their first jobs in positions such as Java developer, Java Software engineer, Backend developer, or Software developer.