How to Get a Job as a Java Developer: Tips and Resume in 2025

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How to get a job as a Java developer: tips and resume

Java is one of the most in-demand programming languages in the world. Banks, fintech, e-commerce, enterprise systems — Java developers are needed everywhere. But how do you get into this field? What skills should you improve? How do you write a resume that gets noticed? In this article, we'll break down a step-by-step plan for getting a job as a Java developer — from theory to real code examples and CV formatting.

1. What skills a Java developer needs

Before sending out your resume, make sure you have a basic set of hard skills. For a Junior Java Developer position, the requirements look like this:

Core Java — syntax, OOP (inheritance, polymorphism, encapsulation, abstraction), collections, exceptions, generics.
Java Collections Framework — List, Set, Map, Queue, and their implementations (ArrayList, LinkedList, HashMap, TreeMap, HashSet).
Multithreading — basics of Thread, Runnable, synchronized, volatile, java.util.concurrent.
Databases and SQL — SELECT, JOIN, GROUP BY, indexes, normalization. It's good if you know Hibernate / JPA.
Spring Framework — Spring Boot, Spring MVC, Spring Data, Dependency Injection.
Version control systems — Git (commit, merge, rebase, pull request).
Build tools — Maven or Gradle.
REST API — understanding of principles, writing controllers, working with JSON.

Example of a simple REST controller in Spring Boot:

@RestController@RequestMapping("/api/users")public class UserController {

    @GetMapping("/{id}")    public ResponseEntity<User> getUserById(@PathVariable Long id) {        User user = userService.findById(id);        return ResponseEntity.ok(user);    }

    @PostMapping    public ResponseEntity<User> createUser(@RequestBody User user) {        User saved = userService.save(user);        return ResponseEntity.status(HttpStatus.CREATED).body(saved);    }}

2. How to write a Java developer resume

Your resume is your business card. It is typically viewed for 6–10 seconds. Here are the key sections that should be in a Java developer's CV:

2.1. Contact information and links

Full name, phone, email.
Link to GitHub (mandatory! with code).
Link to LinkedIn or Habr Career.

2.2. Brief description (Summary)

2–3 sentences about your stack and goals. For example:

«Junior Java Developer with 1 year of commercial development experience. Proficient in Spring Boot, Hibernate, PostgreSQL, Git. Looking for an opportunity to grow in a product team with strong mentorship.»

2.3. Work experience (or projects)

Even if you have no commercial experience, describe pet projects, coursework, freelance work. Format:

Project / Company name
Stack: Java 17, Spring Boot 3, PostgreSQL, Docker
What you did: developed a REST API for an online store, configured authentication via JWT, integrated a payment gateway.