Why Extend Went All-In on Serverless Platform Engineering

About this episode

Justin Masse discusses Extend's commitment to a serverless-first approach and its impact on developer speed and operational efficiency.

Billions of requests a month on AWS Lambda can cost less than a single engineer’s laptop budget, but only if the architecture and developer workflow are designed for it. Justin Masse, Senior Platform DevOps Engineer at Extend, shares how Extend committed early to a serverless-first approach and built a platform that prioritizes developer speed and low operational toil. The conversation breaks down what it takes to run active-active, multi-region systems in a serverless world, how the team keeps services small and fast, and why asynchronous, event-driven design changes both reliability and cost. You’ll also hear how Extend treats developer experience as a core platform responsibility: templated microservices, fast deployment pipelines, ephemeral environments for pull requests, and infrastructure that developers can own without becoming cloud specialists. A big theme is using AWS CDK and internal abstractions to keep infrastructure close to the application code, so teams can move quickly while keeping platform standards consistent. Finally, the discussion gets practical about tradeoffs that show up after the “serverless is easy” pitch: local development challenges, the real cost…

People in this episode

Host: Cory O'Daniel

Guest: Justin Masse

Topics covered

• serverless architecture
• developer experience
• operational efficiency
• multi-region systems
• event-driven design
• cloud infrastructure

Keywords

• serverless
• AWS Lambda
• developer workflow
• observability
• microservices
• infrastructure
• event-driven
• active-active
• multi-region

Mentioned in this episode

Organizations: Extend, AWS Lambda, AWS CDK, Massdriver

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