Backend Java Developer

THE WORLD OF UBISOFT

Ubisoft is a global leader in gaming with teams across the world creating original and memorable gaming experiences, from Assassin’s Creed, Rainbow Six, to Just Dance and more. We believe diverse perspectives help both players and teams thrive. If you’re passionate about innovation and pushing entertainment boundaries, join our journey and help us create the unknown!

Ubisoft Barcelona Mobile brings together dedicated and experienced professionals that are focused on crafting high-quality F2P games for mobile. We strongly believe in the core values at the centre of our Ubilife, which encourage us to take ownership of our work, continually striving for excellence while promoting the sharing of knowledge across individuals and teams, without losing our sense of enjoyment and fun, while taking care for one another. We strive for a safe and respectful workplace for all team members and we’re transparent about the measures we are taking to do so. For this reason, Ubisoft’s Code of Conduct has been released publicly on our corporate website for all current and future team members. 

Do you want to join us in the world of mobile gaming? If so, read on! 

At Ubisoft Barcelona Mobile, we’re not just making games — we’re building worlds.  

As a Backend Java Developer, you’ll be at the heart of our live game experiences, crafting scalable, high-performance backend systems that support millions of players worldwide. Whether you're a gamer or simply passionate about building great tech, your work will directly shape the future of mobile entertainment. 

In this position you'll be reporting to the Principal Lead Server Engineer.

What You’ll Be Doing:

• Develop the server-side components for live games using Java, Redis, MongoDB, and NodeJS. 

• Collaborate with game teams to implement new features and services. 

• Customize and optimize game servers to meet production standards. 

• Deploy and maintain applications in both internal and live environments. 

• Perform DevOps tasks to ensure system reliability and scalability. 

• Estimate and plan technical work, even with limited information. 

• Participate in a rotating on-call schedule to support production environments. 

• Write clean, maintainable code and contribute to technical documentation. 

 

This position is open for both intermediate and senior-level developers. Please find below our minimum qualifications:

• Strong Java programming skills and solid object-oriented design knowledge. 

• 2+ years of experience building and deploying server-side applications. 

• Familiarity with JavaScript or related scripting frameworks. 

• Experience with relational and non-relational databases. 

• Proficiency with Git and Gitflow best practices. 

• A collaborative mindset and strong communication skills. 

• A proactive, detail-oriented approach to problem-solving. 

• Good command of English and a valid work permit for Spain. 

Nice to Haves:

• Degree in Computer Science, Math, or a related field. 

• Experience with NodeJS, Vue.js, Java EE, Docker, Kubernetes, AWS, or Terraform. 

• Knowledge of app store ecosystems or social network integrations. 

• Familiarity with Linux shell scripting. 

• Spanish or Catalan language skills. 

YOUR LIFE AT UBISOFT BARCELONA MOBILE (and PERKS)

• Ticket Restaurant: 210€ per month, and a Flexible compensation plan (Ticket Transport & Ticket Nursery). 
• Flexible working hours: 40-hour workweek with start times between 8 AM and 10 AM (or from 7:30 AM when working onsite to avoid traffic jams), and early leave from 4 PM (Fridays from 2 PM).
• Reduced schedule (35 hrs per week) in July and August, Easter, Christmas holidays, and special days like Sant Jordi and Revetlla de Sant Joan. 
• Personal Matters Hours: 24 hours paid for by Ubisoft that you can use for personal matters during your work schedule
• Holidays: 25 days per year + 1 day on your Ubi-Birthday. 
• 5 extra holiday days on the year you celebrate your 5th/10th/15th/20th year with us. 
• Health insurance with Cigna, including physiotherapy and psychology sessions at a reduced price. 
• Life Insurance with AXA. 
• Mobile Device Grant of 400 EUR starting in your 1st year in the company. 
• Language training in English, Spanish, and French. 
• Professional development training & programs, based upon request. 
• Ubisoft games are available at a discount , and Uplay in PC is free
• Locally roasted craft coffee by INCAPTO (it’s very, very good). 

Ubisoft is committed to creating an inclusive work environment that reflects the diversity of our player community. We are an equal opportunity employer. Qualified applicants will receive consideration for employment without regard to their race, ethnicity, religion, gender, sexual orientation, age, or disability status.