Full-Time

Technical Lead

Network Programming, Rainbow Six Siege

Ubisoft

Ubisoft

10,001+ employees

Global video game developer and publisher

No salary listed

Montreal, QC, Canada

In Person

Category
Software Engineering (1)
Required Skills
Microsoft Azure
Incident Response
Distributed Systems
AWS
Observability
C/C++

Get referred to Ubisoft

See people who can refer or advise you

Requirements
  • At least 10 years of professional software engineering experience.
  • At least 7 years of experience developing multiplayer systems.
  • Proven experience leading technical initiatives for large-scale online games.
  • Deep expertise in client/server architecture, real-time networking, replication models, distributed systems, concurrency and multithreading, and performance optimization.
  • Very strong C++ expertise.
  • Experience with dedicated server development and operation.
  • Experience supporting live-service products in production.
  • Demonstrated ability to influence technical direction across multiple teams.
Responsibilities
  • Define and own the networking architecture roadmap for current and future projects.
  • Establish long-term strategies for game state replication, server authority models, client prediction and reconciliation, lag compensation, matchmaking integrations, online infrastructure, and distributed game services.
  • Make critical technical decisions regarding server architectures, networking frameworks, and backend integrations.
  • Evaluate technical trade-offs among latency, bandwidth, scalability, security, and development velocity.
  • Ensure networking systems remain scalable throughout the entire lifecycle of the live game.
  • Own the architecture and evolution of dedicated game servers, replication systems, session management, matchmaking integrations, backend service integrations, and cross-platform multiplayer functionality.
  • Establish performance budgets and networking best practices.
  • Drive improvements to server stability, uptime, and operational efficiency.
  • Lead investigations into systemic online gameplay issues affecting player experience.
  • Define performance targets for server tick rates, bandwidth consumption, CPU utilization, memory usage, replication costs, and service response times.
  • Analyze large-scale telemetry and production metrics.
  • Lead optimization initiatives for high-scale multiplayer environments.
  • Develop strategies to support player population growth and evolving infrastructure requirements.
  • Collaborate with Live Operations and Online Services groups to maintain service health.
  • Establish standards for service resiliency and fault tolerance.
  • Drive initiatives to minimize service disruption and downtime.
  • Partner with security teams to address exploits, packet manipulation, authority bypass attempts, cheating vectors, and service abuse.
  • Define secure networking practices across the project.
  • Participate in incident response and root cause analysis for large-scale production issues.
  • Lead and mentor network and online systems programmers.
  • Help engineers grow into senior and specialist roles.
  • Review architecture, designs, and code for technical excellence.
  • Foster a culture of ownership, accountability, and continuous learning.
  • Establish best practices and technical standards for multiplayer development.
  • Act as the primary escalation point for complex networking issues.
  • Work closely with Gameplay Programming, Engine Programming, Quality Engineering, Site Reliability Engineering and Operations, Backend Services, Data Engineering, Security, and Production.
  • Translate technical constraints into actionable recommendations for non-technical stakeholders.
  • Align multiplayer architecture with business, production, and player experience goals.
  • Coordinate networking initiatives across multiple teams and studios when required.
Desired Qualifications
  • Experience shipping competitive multiplayer titles.
  • Experience with large-scale live-service architectures.
  • Experience building backend services and cloud-native systems.
  • Knowledge of Amazon Web Services, Microsoft Azure, GameLift, PlayFab, and service orchestration.
  • Experience with telemetry, observability, and production monitoring.
  • Experience working across multiple studios and global development organizations.

Ubisoft is a global developer and publisher of interactive entertainment, creating, marketing, and selling video games for consoles, PCs, and mobile devices. Its products run as traditional paid games, in-game purchases, and subscription services, and are supported by major franchises such as Assassin’s Creed, Far Cry, and Rainbow Six. Games are built to run across platforms with optional in-game purchases and ongoing services, and Ubisoft also develops its own tech, like Ubisoft Scalar, to streamline game development and enhance player experiences. The company differentiates itself through its large portfolio of enduring franchises, its in-house technology investments, and its active support for esports, community building, accessibility, and inclusion. Ubisoft’s goal is to deliver engaging interactive experiences at scale, grow its global gaming ecosystem, and maintain leadership in game development and publishing while expanding services and accessibility for a wide audience.

Company Size

10,001+

Company Stage

IPO

Headquarters

Montreuil, France

Founded

1986

Get referred to Ubisoft

See people who can refer or advise you

Simplify Jobs

Simplify's Take

What believers are saying

  • Black Flag Resynced hit 84 Metacritic and became Ubisoft’s fastest-selling Assassin’s Creed launch.
  • Creative House 2 hired Christoph Hartmann on July 2, 2026, strengthening management depth.
  • Ubisoft still targets new Assassin’s Creed, Far Cry, and Ghost Recon releases by March 2029.

What critics are saying

  • Ubisoft cut 380 jobs on June 10, 2026, after six restructuring rounds this year.
  • Winnipeg, Belgrade, and Red Storm closures hollowed out support capacity and internal continuity.
  • A weak 2026-27 release slate and €500 million cash burn threaten solvency.

What makes Ubisoft unique

  • Assassin’s Creed Black Flag Resynced sold 3.5 million copies in 14 days.
  • Ubisoft still controls Tom Clancy, Assassin’s Creed, Far Cry, and Rainbow Six franchises.
  • Creative House model and Vantage Studios concentrate specialist teams around durable player experiences.

Help us improve and share your feedback! Did you find this helpful?

Benefits

Flexible Work Hours

Growth & Insights and Company News

Headcount

6 month growth

-1%

1 year growth

-1%

2 year growth

-1%
Yahoo Finance
Jul 23rd, 2026
Ubisoft Q1 net bookings at $289M, new Assassin's Creed sells 3.5M copies in 14 days

Ubisoft reported first-quarter net bookings of €256 million for fiscal year 2026-27, down 9% year-on-year but slightly above guidance. The decline reflects a high comparison base from Assassin's Creed Shadows' March 2025 release. The quarter saw record performance from Invincible: Guarding the Globe, whilst Rainbow Six Siege performed in line with expectations. Assassin's Creed Black Flag Resynced launched in July, achieving an 84 rating on OpenCritic and Metacritic. The game sold 3.5 million copies within its first 14 days, exceeding annual expectations. Ubisoft appointed industry veteran Christoph Hartmann as general manager of Creative House 2. The company closed its Winnipeg and Belgrade studios, made targeted changes to global publishing, and restructured its Barcelona studio. The company confirmed its fiscal year 2026-27 and mid-term outlook.

Yahoo Finance
Jul 2nd, 2026
Ubisoft hires ex-Amazon Games chief Christoph Hartmann to lead Creative House 2, overseeing Tom Clancy franchises

Ubisoft has appointed former Amazon Games chief Christoph Hartmann as general manager of Creative House 2, overseeing franchises including "Tom Clancy's The Division", "Ghost Recon" and "Splinter Cell". The division will also include "March of Giants", which Ubisoft acquired from Amazon in December. Hartmann brings over 20 years of industry experience. He recently served as vice president of Amazon Games before leaving earlier this year. Prior to Amazon, he spent two decades at Take-Two Interactive, co-founding 2K Games and leading development of franchises including "Borderlands", "BioShock" and "NBA 2K". Ubisoft CEO Yves Guillemot said Hartmann's experience across development and publishing makes him well-suited to elevate the company's teams and deepen connections with players.

Yahoo Finance
Jul 1st, 2026
Amazon Games VP Christoph Hartmann joins Ubisoft to lead Tom Clancy franchise division

Ubisoft has appointed Christoph Hartmann, Amazon Games vice president, to lead its Creative House 2 division, which oversees the Tom Clancy franchise including titles such as "Splinter Cell" and "The Division". Hartmann brings significant industry experience, having co-founded and led 2K, owned by Take-Two Interactive. During his tenure there, he oversaw major franchises including Borderlands, BioShock and Civilization. The appointment signals Ubisoft's continued investment in its Tom Clancy properties as the French video games company seeks experienced leadership for one of its key creative divisions.

Yahoo Finance
Jun 11th, 2026
Ubisoft closes Winnipeg and Belgrade studios, cutting 380 jobs in restructuring

Ubisoft is closing two studios, Winnipeg and Belgrade, as part of ongoing restructuring that has cut approximately 380 jobs. Ubisoft Winnipeg, opened in 2018 with around 100 employees, worked on the company's Anvil and Snowdrop engines and contributed to titles including Ghost Recon Wildlands and Skull and Bones. The Belgrade studio, established a decade ago, supported projects from Steep to Skull and Bones. The closures follow extensive cuts across Ubisoft's Global Publishing division. The company's workforce has shrunk from over 20,000 employees in 2023 to approximately 15,000. This year alone, Ubisoft has shuttered studios in Halifax and Stockholm, reduced staff at Red Storm Entertainment, and cancelled six games including the Prince of Persia: Sands of Time remake.

Yahoo Finance
May 22nd, 2026
Ubisoft reports $1.7B net bookings down 17% amid restructuring, cuts 1,200 jobs and $132M in costs

Ubisoft Entertainment reported full-year net bookings of €1.525 billion, down 17% year-on-year, primarily due to a softer new release schedule. Non-IFRS EBIT reached €1.040 billion, meeting guidance, while free cash flow consumption was €443 million, within the target range. The gaming company reduced its fixed cost base by €118 million and headcount by approximately 1,200 employees to 16,590. Net debt improved to €187 million from €885 million a year earlier, with cash holdings of around €1.35 billion. For fiscal 2027, Ubisoft expects single-digit percentage decline in net bookings and high single-digit negative operating margin. The company discontinued seven projects and delayed six others whilst leveraging AI to enhance game development efficiency.