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Roku

Senior Software Engineer, Java, C++, Ad Engineering

Sorry, this job was removed at 02:20 p.m. (GMT) on Tuesday, Aug 19, 2025
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In-Office
Cardiff, South Glamorgan, Wales
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Cardiff, South Glamorgan, Wales

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Teamwork makes the stream work.Roku is changing how the world watches TV

Roku is the #1 TV streaming platform in the U.S., Canada, and Mexico, and we've set our sights on powering every television in the world. Roku pioneered streaming to the TV. Our mission is to be the TV streaming platform that connects the entire TV ecosystem. We connect consumers to the content they love, enable content publishers to build and monetize large audiences, and provide advertisers unique capabilities to engage consumers.

From your first day at Roku, you'll make a valuable - and valued - contribution. We're a fast-growing public company where no one is a bystander. We offer you the opportunity to delight millions of TV streamers around the world while gaining meaningful experience across a variety of disciplines.


About the role 

A highly scalable, highly available, real-time advertising platform is critical to support and grow Roku's rapidly expanding ad business. It is the mission of the Ad Engineering Team to build this platform. We are hiring a Senior Software Engineer, Advertising Platform, to be a vital part of this mission. If you bring extensive experience building complex systems, love great technology at scale, enjoy mentoring, jumping in, and figuring things out in any system, this role is for you! 


What you'll be doing 
  • Work alongside a highly skilled engineering team to design, develop, and maintain large scale, highly performing, real-time applications
  • Own building features, driving directly with product and other engineering teams 
  • Demonstrate excellent communication skills in working with technical and non-technical audiences 
  • Be an evangelist for best practices across all functions – developers, QA, and infrastructure/ops 
  • Be an evangelist for platform innovation and reuse 
  • Deliver top-quality software in a timely fashion 

 We're excited if you have
  • 10+ years of experience building large scale and low latency distributed systems
  • Command of Java, C++ or Go/Golang
  • Solid understanding of algorithms, data structures, performance optimization techniques, object-oriented programming, multi-threading, and real-time programming 
  • Experience with distributed caching, SQL/NO SQL, and other databases is a plus 
  • Experience with Big Data and cloud services such as AWS/GCP is a plus
  • Experience in advertising domain a big plus 
  • B.S. or M.S. degree in Computer Science, Engineering, or equivalent 
  • Self-motivated individual with a high level of accountability and ownership
  • Critical thinking and practical decision making
  • Can do, results-oriented mindset
  • Nonpolitical, collaborative, and team oriented
  • Desire to win in a highly competitive industry
#L1-GL1
Benefits

Roku is committed to offering a diverse range of benefits as part of our compensation package to support our employees and their families. Our comprehensive benefits include global access to mental health and financial wellness support and resources. Local benefits include statutory and voluntary benefits which may include healthcare (medical, dental, and vision), life, accident, disability, commuter, and retirement options (401(k)/pension). Our employees can take time off work for vacation and other personal reasons to balance their evolving work and life needs. It's important to note that not every benefit is available in all locations or for every role. For details specific to your location, please consult with your recruiter.


The Roku Culture

Roku is a great place for people who want to work in a fast-paced environment where everyone is focused on the company's success rather than their own. We try to surround ourselves with people who are great at their jobs, who are easy to work with, and who keep their egos in check. We appreciate a sense of humor. We believe a fewer number of very talented folks can do more for less cost than a larger number of less talented teams. We're independent thinkers with big ideas who act boldly, move fast and accomplish extraordinary things through collaboration and trust. In short, at Roku you'll be part of a company that's changing how the world watches TV. 

We have a unique culture that we are proud of. We think of ourselves primarily as problem-solvers, which itself is a two-part idea. We come up with the solution, but the solution isn't real until it is built and delivered to the customer. That penchant for action gives us a pragmatic approach to innovation, one that has served us well since 2002. 

To learn more about Roku, our global footprint, and how we've grown, visit https://www.weareroku.com/factsheet.

By providing your information, you acknowledge that you have read our Applicant Privacy Notice and authorize Roku to process your data subject to those terms.

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