Senior Software Engineer, Site Performance

Welcome to Warner Bros. Discovery… the stuff dreams are made of.

Who We Are…

When we say, “the stuff dreams are made of,” we’re not just referring to the world of wizards, dragons and superheroes, or even to the wonders of Planet Earth. Behind WBD’s vast portfolio of iconic content and beloved brands, are the storytellers bringing our characters to life, the creators bringing them to your living rooms and the dreamers creating what’s next…

From brilliant creatives, to technology trailblazers, across the globe, WBD offers career defining opportunities, thoughtfully curated benefits, and the tools to explore and grow into your best selves. Here you are supported, here you are celebrated, here you can thrive.

We are the now and the next. The power behind the people building the future. We are born from the spirit of innovation. We are created from the idea that people around the world want more, need more, deserve more. We are the home of the global digital revolution. We are CNN.

To see what it’s like to work at CNN, follow @WBDLife on Instagram and X!

Your New Role...

The CNN Site Performance team leverages innovative technologies and best practices, working to enhance our products loading times, responsiveness, and overall speed. From fine-tuning server configurations to optimizing code and assets, our expertise ensures that our platform is always at its peak performance.

Your Role Accountabilities...

As a Senior Software Engineer on CNN's Site Performance Team, you will make significant contributions enhancing the performance and user experience of one of the world's leading news and media platforms. You will collaborate with cross-functional teams to optimize site performance focusing on speed, responsiveness, and scalability. Identifying and addressing bottlenecks in code, databases, and infrastructure to ensure lightning-fast page load times and smooth user interactions.

This position will also contribute to using and implementing monitoring and analytics tools to track and analyze site performance metrics. Utilizing data-driven insights to proactively identify performance issues, make informed decisions, and continuously improve the platform.

• Work primarily in modern JavaScript using AWS (Amazon Web Services)
• Contribute to the code & architecture reviews and champion best practices for the organization by defining and evolving engineering standards
• Strong inter-team and cross-team communication
• Follow a progressive development methodology, moving from proofs of concept to prototypes to production releases
• Passionate about software engineering with a strong sense of ownership
• Working in Agile methodologies for organized and distributed work within the team

Qualifications & Experience...

• 5+ years of experience working with other developers on a production system
• 5+ years of experience with JavaScript, including ES6/7 and asynchronous JavaScript.
• Experience with performance monitoring and analytics tools like Datadog, New Relic, or similar.
• Ability to review group or company level priorities (such as OKRs) breaking down problems into meaningful tasks and solutions working with peers within the team cross-functionally across the organization.
• Deep industry experience with modern development technologies, and hands-on familiarity with both client and server technology. Have a solid understanding of common software data structures and algorithms
• You understand the constraints of working with a growing team and thrive in an environment that is fast paced.

How We Get Things Done…

This last bit is probably the most important! Here at WBD, our guiding principles are the core values by which we operate and are central to how we get things done. You can find them at along with some insights from the team on what they mean and how they show up in their day to day. We hope they resonate with you and look forward to discussing them during your interview.

Championing Inclusion at WBD

Warner Bros. Discovery embraces the opportunity to build a workforce that reflects a wide array of perspectives, backgrounds and experiences. Being an equal opportunity employer means that we take seriously our responsibility to consider qualified candidates on the basis of merit, without regard to race, color, religion, national origin, gender, sexual orientation, gender identity or expression, age, mental or physical disability, and genetic information, marital status, citizenship status, military status, protected veteran status or any other category protected by law.

If you’re a qualified candidate with a disability and you require adjustments or accommodations during the job application and/or recruitment process, please visit our accessibility page for instructions to submit your request.