Back-end Developer: Java

Learn software development using Java, one of the most widely-used programming languages in the world.

At your pace
~ 12 months

Personal
mentor

Job guarantee
in 6 months

Bachelor's-level diploma

Start now

One million computer programming jobs are estimated to be created in the U.S. by 2020 - as well as 700,000 in Europe - thanks to unprecedented growth in the tech sector.

Here at OpenClassrooms, we pinpoint the key skills needed for the most in-demand jobs and develop courses and diplomas to train our students in those areas. That’s why we've developed this one-year bachelor-level diploma in web development, which you can complete entirely online with the help of a dedicated mentor. 

What will I do as a Java developer?

A Java developer is a back-end developer who specializes in using the Java programming language to build applications. As Java is an essential part of many types of applications, Java developers are highly sought after in a wide variety of sectors. 

A java developer may be in charge of: 

  • developing and improving an application software 
  • designing technical architecture 
  • implementing software tests and debugging code
  • producing the design schema of a database
  • writing technical and functional documentation 
  • analyzing customer needs
  • selecting and advocating for suitable technical solutions
  • keeping up with changes in technologies

How much will I earn?

Back-end web development can be a lucrative career with many prospects opening up as you continue to rack up valuable experience. Here is what you might expect to earn in your career as a Java developer:

United States

Beginner: $50,000 - $80,000

2-5 years: $70,000 - $90,000

5+ years: $100,000 +

United Kingdom

Beginner: £30,000 - £40,000 

2-5 years: £40,000 - £50,000

5+ years: £50,000 + 

What are my job prospects?

This path can prepare you for the following jobs:

  • Java developer
  • Back-end developer

Java is also one of the languages used to program mobile Android applications.

After a few years of experience, a developer can advance to a position of lead developer, software designer / architect, or technical director / tech lead.

Who is eligible to enroll?

This path is accessible to all, but here are some recommendations:

  • A high school diploma / GCSE level
  • A good level of English (for non-native speakers, a CEFR level of B2, an IELTS band score of 6.5, or a TOEFL score of 80 is recommended) 
  • Access to a computer (PC or Mac), headphones, a webcam
  • Internet access

What will I learn how to do?

In this path, you'll learn how to:

  • Jump-start your studies by defining a personal learning strategy.
  • Program with the Java programming language.
  • Use programming tools like an IDE, Git & GitHub and frameworks like Spring Boot.
  • Ensure the basic security of a web application.
  • Interpret user requirements and propose a technical solution.
  • Use domain driven design to create UML diagrams.
  • Design database schemas and connect to a database. 
  • Test your applications using test driven development.
  • Practice agile web development. 

How will I learn at OpenClassrooms?

Our learning method is unique and revolves around two elements: professional projects and dedicated mentoring sessions.

Projects
At OpenClassrooms, learning is project-driven because that’s the fastest way to become proficient. Projects offer hands-on experience so you can hit the ground running when you start your new job.  

Want to see an example of a project? Read our blog post here.

Mentorship
During your path, you will be assigned a mentor who will offer one-to-one support via weekly video conference sessions. This mentor will offer guidance on your projects, help define objectives and guide you until you reach them. Our mentors are dedicated professionals who are experts in their field and have experience in sharing their know-how with our students.

Your diploma

OpenClassrooms is an official private distance learning establishment registered with the Board of Education in Paris, France that grants its own diplomas as well as those of prestigious academic partners.

Upon completion of your studies and validation of your skills by an academic jury, you will earn a "Back-end Developer: Java" bachelor's-level diploma, registered with the National Directory of Professional Certifications (RNCP)*.
This diploma is at level 6 on the EQF (European Qualifications Framework).

If you have questions about its equivalence in order to undertake further study, contact your university or master's program.

* Sheet available at the following address:
https://www.certificationprofessionnelle.fr/recherche/rncp/27099

Your Job Guarantee

At OpenClassrooms we are committed to helping you find your ideal job. We promise.

By following the learning path "Back-end Developer: Java", you’ll learn an exciting new profession with great career prospects.

What’s more, you’ll find a job within six months of graduating or we’ll give you your money back!

Find out more

Detailed projects and skills

project 1

Set Yourself Up For Success as a Java Back-end Developer

Create a learning plan to acquire the skills you need as a Java Developer. Choose tools to stay up-to-date with innovations in your field and develop your first website with HTML and CSS!
Duration40 hours
Skills acquired in this project
  • Set up a system for staying up to date with technology
  • Design a personalized learning plan
  • Integrate content according to a mockup
  • Select relevant information sources for a set of technologies
project 2

Debug a Java application

You've been hired to finish an application another developer has started, and it's up to you to make sure that it gets up and running correctly! Get ready to make your mark and fix your first Java application!
Duration55 hours
Skills acquired in this project
  • Build a collaborative code project
  • Program using Java fundamentals
project 3

Design an Application to Fit Your Client's Needs

Analyze your client's needs, develop a domain model using a domain-driven design approach, create user stories, and design wireframes to get your client on board.
Duration65 hours
Skills acquired in this project
  • Analyze a client's requirements
  • List functionalities requested by the client
  • Select a suitable technical solution
  • Write detailed specifications
project 4

Fix and Update a Java Application Using Best Testing Practices

You’re taking over work on an unfinished application and a number of tests are failing. Your mission is to fix the application and add a missing functionality so that your client leaves happy!
Duration60 hours
Skills acquired in this project
  • Implement unit tests
  • Fix an application according to a test execution report
  • Produce a test execution report
  • Implement integration tests
project 5

Create Your First Java Web Application From Scratch!

Implement an application to help first responders receive alerts using Spring Boot, a popular Java framework. You'll use quality code practices such as organizing your code with MVC, applying the SOLID principles, and respecting the Testing Pyramid!
Duration120 hours
Skills acquired in this project
  • Develop a Spring Boot application
  • Respect industry standard coding practices
  • Justify the application design & programming languages selected
project 6

Work with Databases to Create a Secure Web Application

You're working on a money transfer app, which means you need to access and store data securely in a database. You'll design and implement your database schema in a relational database.
Duration130 hours
Skills acquired in this project
  • Implement a data schema in a database
  • Design the technical architecture of an application
  • Produce a database design schema
project 7

Make Your Java back-end More Adaptable With a REST API

Modernize the backend of a financial application with a REST API. Make sure it's tested and ready for deployment!
Duration100 hours
Skills acquired in this project
  • Implement REST APIs using best practices
project 8

Scale Up Your App With Distributed Systems

A travel agency has asked you to adapt its monolithic application so that it can evolve more easily. Now it's up to you to make a more efficient, decoupled web application!
Duration100 hours
Skills acquired in this project
  • Produce technical and functional documentation for the application
  • Complete a Unit and Integration test suite to account for changes
  • Fix faults reported by the customer on an application
  • Improve an application as per a customer request
project 9

Develop a Complete Application For Your Client Using Agile Techniques

Build a medical app for disease risk screenings. Structure your app using a microservice and a NoSQL database. Organize your time into sprints, following Agile project management principles.
Duration130 hours
Skills acquired in this project
  • Create a microservice for an application
  • Create a segmented REST API
  • Implement Agile methodology to manage your code project
  • Use NoSQL databases
Diploma
Web developer (Développeur(euse) d’application)

Start toward the career of your dreams

At your own pace

$300 per month

Your perks:

  • Six-month job guarantee

  • bachelor's-level diploma

  • Flexible duration

  • Individual mentorship

  • 9 hands-on projects

Start nowNon-binding subscription

We are here to help

Our team is available to answer your questions about our programs or your new career path.