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Title & Speakers	Event
Event Scala Talks: Tour of error handling & Functional Programming at Huge Companies 2025-10-15
Starship Enterprise: Functional Programming at Huge Companies 2025-10-15 · 19:50 Practicing functional programming inside a Fortune 100 enterprise can feel like flying the Starship Enterprise through asteroid fields of legacy code and bureaucracy. This talk shares hard-earned lessons from the Information Engineering team at JPMorganChase, which runs a production Scala codebase powering a novel metadata platform. We'll explore the political, cultural, and technical friction of pushing functional programming in a Java and Python dominated environment. We'll introduce the domain we work in, the techniques that have worked (and those that haven't), the compromises we've made, and why - despite it all - we still think it's worth it. If you've never tried to run cats-effect in a place where Spring Boot is king, add this talk to your battle log. Java Python Scala
A comprehensive tour of error handling in Scala 2025-10-15 · 18:40 Errors are part of life - But how best to work with them in our code? In this talk, I'll take you on a tour of various typed error handling approaches within the Scala ecosystem, as well introduce a new one for cats/cats-effect ecosystem! Scala

Practicing functional programming inside a Fortune 100 enterprise can feel like flying the Starship Enterprise through asteroid fields of legacy code and bureaucracy. This talk shares hard-earned lessons from the Information Engineering team at JPMorganChase, which runs a production Scala codebase powering a novel metadata platform. We'll explore the political, cultural, and technical friction of pushing functional programming in a Java and Python dominated environment. We'll introduce the domain we work in, the techniques that have worked (and those that haven't), the compromises we've made, and why - despite it all - we still think it's worth it. If you've never tried to run cats-effect in a place where Spring Boot is king, add this talk to your battle log.

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