Tech @ Ro Talks: Hot Server Summer

Engineering for 10–15x Traffic Spikes

2 min read

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Ro

Updated:  Sep 02, 2026

Here's what we'll cover

Here's what we'll cover

Traffic spikes are a familiar challenge for engineering teams. A major product launch, Black Friday, or even the start of a new year can send demand surging almost overnight. So how do you build systems that can handle massive increases in traffic while maintaining a reliable user experience?

That’s exactly what we discussed at our first-ever Tech @ Ro Talks: Hot Server Summer.

We brought together engineering leaders across industries to unpack what it takes to prepare systems for 10-15x increases in volume without compromising the end-user experience. The conversation explored the architectural decisions behind operating at that scale—from forecasting demand and capacity planning to autoscaling and database performance—as well as how to design resilient systems when traffic doesn't behave as expected.

A huge thank you to our speakers Taq Karim (Peloton), Sid Parikh (Reddit), and Muksit Jamil (Ro) for sharing their insights, and to our moderator, Plum Ertz (Ro), for leading the conversation.

Here are some of the lessons our speakers shared:

  • Understanding user behavior is the key unlock to scaling effectively. Scaling isn’t simply about preparing every part of a system for the same increase in traffic. Teams need to understand where users are likely to go, what actions they’ll take, and which parts of UX matter most when demand spikes. That context helps engineers decide where to add capacity, tolerate latency, and which workflows need the strongest reliability guarantees. The right scaling strategy will look different depending on the product, priorities, and experience an organization is trying to protect.

  • The simplest solution is sometimes the right one. It can be tempting to engineer for every possible bottleneck before traffic arrives, but optimizing too early can mean spending significant time solving problems that never materialize. Start with the simplest architecture that can reasonably support the expected demand, observe how it performs under real-world conditions, and use what you learn to determine where additional complexity is actually warranted.

  • Spend engineering brainpower where it's needed most. Not every scaling problem needs to be solved through deep performance optimization. In some cases, deploying more service instances is faster, more reliable, and ultimately more economical than asking engineers to spend weeks squeezing incremental efficiency out of a system. The trade-offs to consider go beyond hardware spend and performance—you must also consider the opportunity cost of what the team could be building instead.

Come build at Ro! 

At Ro, scale isn't just about handling more traffic. It's about building technology that can help more patients access high-quality care when and where they need it. Our engineering teams are building the infrastructure that makes that possible, solving complex technical problems in an industry where reliability, privacy, and safety are critical.

If this type of problem-solving piques your interest, come build with us. Explore open roles on Ro's engineering and technology teams. https://ro.co/tech/