Treyarch is looking for a passionate Senior Online Engineer to help bring our online experience to the next level. As an Online Engineer, you will be responsible for client features, multiplayer systems, online community features, tools and more (did we mention eSports?). You should be able to get quickly familiarized with an established codebase and be able to write elegant, high performing extensible code that works well within a collaborative environment. We have offices in Los Angeles and Vancouver and you will be welcome in either of these locales.

We will consider candidates at all levels of seniority, depending on experience.

What you’ll do…

  • Design, Implement, debug and optimize systems in C/C++ and scripting languages.

  • Work closely with other Engineering and Design teams (Gameplay, UI) as well as the Backend developers to prototype, develop and refine features.

  • Author or contribute to technical designs and documentation.

  • Optimize and maintain existing code. Instrument, analyze, and optimize network game traffic.

  • Participate in the performance and code review process.

  • Take ownership of a larger Online system or tools.

To succeed you should have…

  • 5+ years of programming experience with at least 1 year focus on networking and online systems.

  • Shipped 1+ game title(s).

  • Demonstrated proficiency in C/C++ and experience with a scripting language(s).

  • Excellent knowledge of algorithms, data structures, performance, and multi-threaded programming techniques.

  • Demonstrated ability to write clean, portable, reliable, and optimized code that complies with existing coding standards.

  • Proficiency in client-server networking architecture.

  • Good understanding of network protocols, RESTful APIs and JSON.

  • Ability to quickly understand and work with internally and externally developed code.

  • Excellent communication skills and the ability to collaborate with other engineers, systems designers and producers.

  • Ability to work well in a fluid, changing environment as creative challenges evolve.

We’d love it if you also have…

  • University-level degree in Computer Science or related field (preferably with an emphasis on Networking or Games).

  • Experience with Lua, Python and other scripting languages.

  • Experience with matchmaking and party management systems.

  • Experience in data science (SQL, visualization, analysis, pipelines).

  • Experience working with first party online services such as Xbox Live, PlayStation Network, or Steam.

Covid-19 Hiring Update: We’ve transitioned to a work-from-home model and we’re continuing to interview and hire during this time. This role is expected to begin as a remote position. We understand each person’s circumstances may be unique and will work with you to explore possible interim options.


Founded in 1996, Treyarch is a videogame studio whose purpose is to create awesome games for the world to enjoy. With this purpose in mind, we crafted the award winning Call of Duty: Black Ops series and pioneered the fan favorite Zombies mode.

At Treyarch, we empower the team to be individually driven to innovate on our games, processes, and culture. How we do things is just as important as what we do.

Studio culture and development, we believe it’s a team effort and that collaboration and hearing one another is key. Every day we face the large and small challenges together and every voice matters.

These values guide us in our mission to create moments that matter. Both to the players and to us, the creators. In an era where triumphs and defeats are readily shared, seeing players engage with our creations gives us great pride. Come help us create that next moment.

We are an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, gender expression, national origin, protected veteran status, or any other basis protected by applicable law, and will not be discriminated against on the basis of disability.

PS, we’ve also got some pretty amazing office perks and benefits, like 20 vacation days and 16 holidays, 10 weeks of family leave, free lunches and snacks at our office, comprehensive healthcare, and more! Check out all the details here for more information: