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Our Scala Journey by Girish Kolanthra (Capital One)

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  • Recommended by 1 person: 1 in engineering communities.
  • Presented by Girish Kolanthra, Lead Software Engineer at Capital One

Intermediate. Assumes working knowledge.

1.3K views5 years ago1 recommendation

Programming languagesCareers and interviewsFunctional programmingThe tech industryCode review and teamwork

Girish Kolanthra shares Capital One's transition from imperative Java and Spring to functional programming with Scala, including their training approach.

Our Scala Journey by Girish Kolanthra (Capital One) The talk is about our team journey from imperative programming using Java and Spring to introducing functional programming using Scala in a large financial services company. We will cover both the evolution of the technologies we used as well as our approach to teaching our engineers Functional Scala. Bio: Girish is a lead software engineer in the Core Modernization group at Capital One. He has a Bachelor of Science in Computer Science and Engineering and has been building software in fintech since 1999. Prior to becoming fascinated with Functional Programming in 2016, Girish worked mostly with Java and its surrounding ecosystem. He started the functional programming journey with tools like RxJava and is now a strong proponent of FP with Scala. Capital One is hiring: capitalonecareers.com/search-jobs/Scala/San*20Francisco*2C*2…

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1 person recommends this

What people say. Recommended as a real-world case study of adopting Scala and ZIO in a large financial enterprise.

Moments people linked to

u/kitlangtonin r/scala • Recommends

On “Introducing effects systems S.A. ZIO at work?”

>Basically, how do I assure my team that it's stable enough to use in production? ZIO is currently being used in production by many companies (check out the list of public adopters https://github.com/zio/zio#adopters). Personally, I'm working with ZIO at Capital One (check out this video from my coworker, Girish) where, needless to say, they take safety, correctness and resilience very seriously. While there are many other reasons why ZIO could be considered production-ready, simply showing whomever needs to be convinced that it's already being used in production by large companies is often quite persuasive. Beyond that, it sounds like you're aware of the other safety benefits functiona…
13View on Reddit

u/kitlangtonin r/scala • Recommends

On “Introducing effects systems S.A. ZIO at work?”

Awesome! And of course, I didn't take it as a dig ☺️ Also, great questions! Sounds like you're in a situation I've found myself in multiple times. Since discovering ZIO, I've pitched it (successfully! 🎉 ) to every company I worked for. It just became too painful to use anything else. In addition to pointing to industry use (which was more difficult at the beginning), I've found that identifying and translating some particularly complex and error-prone chunks of code over to ZIO, in an example PR or proposal document, has been quite effective. Of course, this depends on whether or not the decision-makers are technical. As to your questions, I can't speak too specifically to my current pos…
3View on Reddit