グループ概要

SF Scala is a group for functional programmers who use Scala to dominate the world. We build APIs, Big Data flows, and startups powered by Scala. We do more with less people and less resoucres due to Scala's incredible power. We meet to discuss best practices and how the technology is being used successfully by organizations.

SF Scala covers San Francisco, and events are coordinated with , which covers the peninsula and south bay.

If you would like to present a technical talk about Scala, or how Scala is used in your organization, please contact one of the organizers. If you want to host, contact us. We also are always looking for video sponsors to continue our recordings.

Always find us at sfscala.org and follow us on Twitter at @sfscala.

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Reasoning about types and code in functional programs & Art of asking questions

Talk1: Reasoning about types and code in functional programs Talk Summary: Functional programming is unique among programming paradigms because it allows us to reason rigorously about types and computations before we start writing code. In this way, functional programming is the only paradigm that makes the work of a software developer resemble the work of an engineer. I have been working on a new book, "The Science of Functional Programming". This presentation focuses on one of the main themes of the book - the techniques and applications of mathematical reasoning about types and code. I give examples of type and code reasoning tasks that are directly useful to functional programmers. Typical tasks are to determine whether a function with given type signature can be implemented; to write code for a typeclass method that satisfies the laws; and to transform a data type to an equivalent but simpler form. In this presentation, I show in detail two specific examples of mathematical reasoning using a notation I developed in the book. The first example is to derive the equivalence between three different formulations of the free monad. The second example is a proof (in 5 lines of calculations) that a certain complicated monad transformer satisfies its laws, - a proof that a recent academic paper failed to complete because such calculations are too hard when written in the syntax of code in a programming language. About our Speaker: Sergei Winitzki (https://www.linkedin.com/in/sergei-winitzki-11a6431) has a degree in theoretical physics and, after an academic career in physics research, now works as a big data engineer. He is passionate about functional programming, declarative programming, and domain-specific languages. Talk2: The art of asking questions There are specific skills that are crucial for people to utilize in every profession, and without a doubt, one of the most essential skills in a workplace is the ability to ask questions. It doesn’t matter what your job title is. Whether you’re a junior developer, a team lead, or an architect; you need to master the art of asking questions. Why is this skill so important? One study shows that curious children ask, on average, 73 questions every day, a practice that helps them learn faster. This practice is also true of students, interns, and new hires. Asking questions is the simplest and most productive way of learning. However, as we become more senior in our fields, we tend to assume we know it all and stop asking as many questions. But do we ever stop wondering, challenging ourselves, doubting things, or searching for answers? In this keynote, Oli will share insights she's gained while conducting podcast interviews with individuals from a variety of sectors in the Scala community. She'll also discuss how she's incorporated these principles into asking the right questions, a skill that helps her be an effective technical consultant. About our speaker: Oli Makhasoeva (https://www.linkedin.com/in/oli-kitty/) is a Solutions Architect at https://www.47deg.com/, she is a host of Scala Love (https://scala.love/) podcast about Scala.

[External Registration][Conference] Scale By the Bay 2019, November 13-15

ロケーション設定が必要です

This year Scale By the Bay (https://scale.bythebay.io) runs for only two days. But we packed an incredible 70 sessions in these two days! We start with a hot breakfast and excellent coffee. Coffee never ends -- continuous uninterruptible supply of great coffee is a hallmark of every conference By the Bay. Each morning there is a keynote where we all gather as a community, and a panel closing each conference day where we all get together again before the happy hour -- also every day. The heart of the conference are its iconic four tracks: Thoughtful Software Engineering, Service Architectures, End-to-end Data Pipelines up to ML/AI, which we historically call Functional, Reactive, and Data. That's three right? The fourth is the hallway track -- and we're legendary for it! The core theme this year is Distributed Systems. Joe Beda, Principal Engineer at VMware and the co-creator of Kubernetes, keynotes one day, and Heather Miller, Professor at CMU and former Director of the Scala Center, keynotes the other. We have multiple talks considering cloud deployments on Kubernetes in concert with other systems, such as Kafka, Spark, and Flink. We cover important new directions with Unison, and inherent issues such as Change Data Capture from Disney Streaming. We will learn about the new GIS features for Google BigQuery from their author, about the Databricks Data Lake approach, and infrastructure as code at Target. Our "reactive" track started as reactive microservice architectures but came to encompass all kinds of systems, as well as data manipulation techniques. We'll see how Lyft is enabling real-time queries with Apache Kafka, Flink and Druid. We'll hear about the lessons learned developing and running Netty from its creator. We see how Serverless is developed at Google. Machine Learning and AI are only as scalable as the data pipeline feeding them. Moreover, you need to ensure your data is typesafe and your predictions are based on the data whose integrity or even privacy is provable. This year, we have three talks on Swift for TensorFlow, including from the original Google team developing it, as well as Coinbase and Quarkworks. We hear from Sony Entertainment on near real-time, low latency predictions, and many many other leaders. And we'll uphold the rigorous and thoughtful software engineering that is underpinning of every system scalable in time and tech space -- a system that can deliver but also grow with companies and their people. We'll hear from Comcast and Netflix on human-centric software engineering and ML organizations. We'll hear about community-first Open-Source approaches. We'll see how F# invigorates .Net ecosystem with functional approach, including JavaScript apps, and how Scala with React is doing the same for the full-stack development on the JVM. We'll hear about Rust, Haskell, Scala, Java, Python, F# and other ecosystems used for quality development and production deployment. We'll see how the sausage is made at JetBrains to power our IDEs. We'll dig deeper into GraalVM with Oracle and Twitter, as well as Scala Native. We pioneered GraphQL at Scale By the Bay three years ago when almost nobody heard about it. Furthermore, our focus was not on the frontend alone but on middleware usage of GraphQL. This year Nick Schrock, a co-creator of GraphQL, joins us. The day before the conference, we run a bespoke, all-day, hands-on training that we build specifically for SBTB. This year, it's Portable Serverless Workshop with Ryan Knight and James Ward. James is now at GCP and has a driver seat going to the serverless future. You'll go home with a complete serverless backend under your belt! All in all, we'll have a lot of fun, pack a year of learning in just two or free days, and again experience the magic that makes Scale By the Bay a legend! Reserve your Early Bird seat soon at https://scale.bythebay.io.

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