Senior Game Server Engineer (Online Services) (M/W/NB)

Job description

Company Description

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!

Job Description

We’re looking for a senior engineer with deep experience in online systems, backend development, and large‑scale multiplayer architecture . You’ll design, build, and operate the server technology that powers our next‑generation online experiences.

This role is ideal for someone who thrives on low‑latency systems, distributed architectures, DevOps automation, and high‑performance C/C++ development .

In this role, your missions will be the following :

Key Responsibilities

· 
Architect & Scale: Design high-concurrency server architectures using C++ and distributed systems.

· 
Latency Mastery: Optimize real-time networking protocols to ensure a "frame-perfect" experience.

· 
Live Ops Excellence: Build and oversee CI/CD pipelines and containerized environments (Docker/K8s) to keep our live services resilient.

· 
Security & Integrity: Engineer robust anti-cheat measures and data protection protocols

Qualifications

· 
Gaming exp: You have significant years of experience in video games with one or more shipped AA/AAA multiplayer titles.

· 
The Stack: Expert-level C++ . Proficiency in C# or Python for tooling.

· 
Infrastructure: Deep knowledge of Linux internals and cloud-native deployments (AWS/GCP/Azure).

· 
Protocols: Experience with UDP, TCP, and high-level networking libraries (e.g., Unreal Engine Networking, GRPC).

Additional Information

Ubisoft's perks
Profit Sharing, yearly company saving plan. 25 paid time off + 12 additional paid days off. 50% of your transportation pass is paid by the company, lunch vouchers (9€/day), healthcare for you and your family, and lots of Ubisoft additional perks.
Maternity leaves of 20 weeks, paternity/co-parental leaves of 7 weeks.
Our office is located in Saint Mandé, (Metro line 1, Saint Mandé station). Gym available in the building. 

Recruitment process

45 minutes : screening with the recruiter

60 minutes : interview with the manager of the role

60 minutes : interview with members of the team.

Additional Information
Ubisoft offers the same job opportunities to all, without any distinction of gender, ethnicity, religion, sexual orientation, social status, disability, or age. Ubisoft ensures the development of an inclusive work environment which mirrors the diversity of our gamers’ community. 

Check out this guide to help you with your application, and learn about our actions to encourage more diversity and inclusion.