Senior Multiplayer Programmer | Programmeur ou programmeuse multijoueur senior

NBCUniversal Intl.; Montreal (administrative region); Hybrid; CAD 90,000 - 150,000; Full time

Job summary

NBCUniversal is seeking a Senior Multiplayer Programmer to design, implement, and optimize the networked systems powering large‑scale games. You will own the architecture and performance of the game’s online subsystems.

You will design, implement, and maintain realtime network functionality, collaborate with gameplay, engine, and backend teams, and mentor junior engineers. You will strive for low latency, efficient bandwidth use, and cross‑platform reliability.

Qualifications

• Significant experience with AAA multiplayer games or large-scale networked systems.
• Strong C++ skills, including high-performance programming, multithreading, and memory management.
• Deep understanding of low-level networking concepts (protocols, sockets, reliability models) and high-level multiplayer systems (prediction, rollback, replication).
• Ability to profile, debug, and optimize networked gameplay.
• Strong communication skills for working with gameplay, engine, and backend teams.

Responsibilities

• Design, implement, and maintain network systems that support real-time multiplayer gameplay, including replication, synchronization, and communication layers.
• Integrate network functionality into the game engine, working closely with gameplay, backend, and engine teams.
• Optimize network performance to ensure low latency, low bandwidth usage, and high reliability across platforms.
• Troubleshoot and resolve network issues during development and after launch, including desyncs, lag, and connection problems.
• Contribute to the replication ecosystem and ensure network systems support the project’s ambitions.
• Collaborate with other engineers to ensure seamless integration of multiplayer features into gameplay systems.
• Mentor junior and intermediate programmers.
• Stay current with networking technologies and propose improvements to existing systems.

Skills

AAA multiplayer

C++

Networking

Multithreading

Profiling

Job description

• Full-time
• Business Segment: NBCU Corporate

Company Description

NBCUniversal is one of the world's leading media and entertainment companies. We create world-class content, which we distribute across our portfolio of film, television, and streaming, and bring to life through our global theme park destinations, consumer products, and experiences. We own and operate leading entertainment and news brands, including NBC, NBC News, NBC Sports, Telemundo, NBC Local Stations, Bravo, and Peacock, our premium ad-supported streaming service. We produce and distribute premier filmed entertainment and programming through our powerhouse film and television studios, including Universal Pictures, DreamWorks Animation, and Focus Features, and the four global television studios under the Universal Studio Group banner, and operate industry-leading theme parks and experiences around the world through Universal Destinations & Experiences, including Universal Orlando Resort, home to Universal Epic Universe, and Universal Studios Hollywood. NBCUniversal is a subsidiary of Comcast Corporation. Visit www.nbcuniversal.com for more information.

Our impact is rooted in improving the communities where our employees, customers, and audiences live and work. We have a rich tradition of giving back and ensuring our employees have the opportunity to serve their communities. We champion an inclusive culture and strive to attract and develop a talented workforce to create and deliver a wide range of content reflecting our world.

Job Description

As a Senior Multiplayer Programmer, you will focus on designing, implementing, and optimizing the networked systems that power large‑scale multiplayer games. You are responsible for the architecture and performance of the game’s online systems.

RESPONSIBILTIES

• Design, implement, and maintain network systems that support real‑time multiplayer gameplay, including replication, synchronization, and communication layers.
• Integrate network functionality into the game engine, working closely with gameplay, backend, and engine teams.
• Optimize network performance to ensure low latency, low bandwidth usage, and high reliability across platforms.
• Troubleshoot and resolve network issues during development and after launch, including desyncs, lag, and connection problems.
• Contribute to the replication ecosystem and ensure network systems support the project’s ambitions.
• Collaborate with other engineers to ensure seamless integration of multiplayer features into gameplay systems.
• Mentor junior and intermediate programmers.
• Stay current with networking technologies and propose improvements to existing systems.

Qualifications

Basic Requirements:

• Significant experience with AAA multiplayer games or large‑scale networked systems.
• Strong C++ skills, including high‑performance programming, multithreading, and memory management.
• Deep understanding of low‑level networking concepts (protocols, sockets, reliability models) and high‑level multiplayer systems (prediction, rollback, replication).
• Ability to profile, debug, and optimize networked gameplay.
• Strong communication skills for working with gameplay, engine, and backend teams.

Desired Characteristics:

• Shipped at least one title on PC or console.
• Experience with multithreaded programming techniques

Additional Information

As part of our selection process, external candidates may be required to attend an in-person interview with an NBCUniversal employee at one of our locations prior to a hiring decision. NBCUniversal's policy is to provide equal employment opportunities to all applicants and employees without regard to race, color, religion, creed, gender, gender identity or expression, age, national origin or ancestry, citizenship, disability, sexual orientation, marital status, pregnancy, veteran status, membership in the uniformed services, genetic information, or any other basis protected by applicable law.

If you are a qualified individual with a disability or a disabled veteran and require support throughout the application and/or recruitment process as a result of your disability, you have the right to request a reasonable accommodation. You can submit your request to [e-mail].

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