Yukihiro "Matz" Matsumoto

Video Conference Keynote

Title: TBA

TBA

Bio:
Yukihiro Matsumoto aka “Matz” is the creator and chief designer of the Ruby language and its reference implementation, Matz’s Ruby Interpreter (MRI). He works for many open source related organizations and companies, e.g. NaCl inc. in Japan, Heroku and Ruby Association.

Koichi Sasada

Conference Keynote

Title: Ruby's Concurrency Management: Now and Future

Now, Ruby has several concurrency management features: Threads and Fibers. Threads support preemptive context switching and Fibers are for self context management. Further more, I proposing new concurrency feature "Guild" for Ruby 3. Guild support "isolation" for parallel execution. They have advantages and disadvantages. In this talk, I will introduce current features and discuss pros. and cons. Also I will show you the new feature "Guild" and why it is needed. With this talk, you can understand Ruby's concurrency deeply.

Bio:
Koichi Sasada is a programmer, mainly developing Ruby interpreter (CRuby/MRI). He received Ph.D (Information Science and Technology) from the University of Tokyo, 2007. He became a faculty of University of Tokyo (Assistant associate 2006-2008, Assistant professor 2008-2012). After the 13 years life in university, he had joined a member of Matz's team in Heroku, Inc. Now he is a member of Cookpad Inc (engineer). He is also a director of Ruby Association.

Nick Sutterer

Conference Keynote

Title: Ruby is Dead?

Having a simple programming language doesn't mean the applications will be simple. Higher abstractions are needed - but Ruby doesn't seem to give us those! Here is a tour through other languages, and how we can have nice things in Ruby.

Bio:
Drinks IPAs, designs APIs. Creator of http://trailblazer.to (Cells, Apotomo, Roar, Representable, Reform, Disposable, Uber, and more). His expertises are in Ruby architecture and component-oriented system design, refactoring, Rails, gem development.

Aaron Cruz

Conference Keynote

Title: How I Learned Indonesian In 30 Days

I like challenges. Since seeing and hearing Indonesian for the first time, I've found it incredibly fascinating. So with the help of Ruby, I started on a journey to learn Indonesian in 30 days. I will go through the tools I used and talk about abstractions, dependencies and how DRY is not always GREAT. Join me on my quest to master the Indonesian!

Bio:
Aaron is a food lover who speaks about Ruby and other programming languages at conferences around the world. For his real job, he helps Rails SaaS owners reduce churn through performance audits and fixes. Currently, he help Advertising Agencies create more memorable and engaging ad campaigns by developing custom, branded chatbots.

Sidu Ponnappa

Conference Keynote

Title: 12 years of Ruby

I've worked with Ruby since 2005 and Ruby 1.8.3. My first startup was based on Rails 0.10. I've built software, communities, products and businesses around Ruby for a dozen years. This talk is the (deeply personal) story of what I've seen and learned in 12 years of Ruby.

Bio:
26 years coding, 12 years coding for money, 2 jobs, 5 startup attempts, 1 exit, 1 non profit, 3 conferences (including RubyConf India), Many, many failures :). Currently: Head of Data Engineering, GO-JEK. More: http://sidu.in

Abdullah Kim-Ee Yeoh

Title: How to Understand Immutability in Ruby: Origins, Prolog, LISP, and Matz

Ever wondered how an immutable object—with *fewer* methods than its mutable twin—is supposed to make a Ruby programmer's life happier? Won't it do the opposite by making programming harder? This talk will blow your mind by filling you in on the missing story that makes immutability productive.

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Adam Pahlevi Baihaqi

Title: Blockchains on Ruby

Blockchain is an interesting concept and sounds futuristic, and yet mysterious to most. It is the basic building of the Etherium and Bitcoin cryptocurrency, which source code, a complex one, could be available for reading. But, how about stepping back and taking basic Blockchain 101 and display how it was made in Ruby.

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Agung Setiawan

Title: Be a Ruby (and Rails) Evangelist

Di Indonesia Ruby masih sepi. Kita sebagai rubyist perlu memfamiliarkan Ruby supaya semakin banyak rubyist yang ada. Caranya bagaimana? kita jadi Ruby evangelist! Lewat fb, twitter, blog mau pun screencast kita bisa membuka pandangan orang tentang Ruby dengan harapan menjadi tertarik untuk mencoba

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Baskara Patria

Title: Dealing with Increasing Records in Ruby on Rails and PSQL

Ruby on Rails' ActiveRecord provides query generations which can help programmer delivers faster. But when it needs to deal with separated data sources, it can cause some problems. Hear our story on scaling Order Management System from biggest food delivery service in ASEAN with RoR and PostgreSQL.

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Evan Purnama

Title: Lessons Learned: 3 years+ on Ruby on Rails (RoR)

This talks I want to talk about our personal experience of 3 years+ using Ruby on Rails. We will talk about thinking process of how we decided to use Ruby on Rails to start our very first application as company, and we will talk about how we feel about that choices after 3 years+.

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Galih Muhammad

Title: Using Rails 5 As Your API Backend May Not Be The Stupidest Idea

Ruby on Rails is dead, they say. With asynchronous Web App becoming the new norm, NodeJS and Golang has become the go-to tools for writing backend. Is there really a place for this 10-year-old, battle-tested web framework, in the API-builders battlefield? I say there (maybe) is.

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Harwin Prahara

Title: V for Versioning: how we ship new feature while maintaining legacy support

API versioning is a simple yet sensitive issue. Doing it wrong, you'll certainly see a cold war between API and mobile app devs, not to mention angry clients with their unusable app because of API-incompatibility issue. This talk will show how to handle API versioning with care and prevent a war :)

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Mufid Afif

Title: But server processed wrong submission! Understanding Race Condition

You built an application. Then you scaled up your application, added more user, added more servers. Everything would seem fine until at some moment, server may get different outcomes processing data with the same data in high traffic application. It might be race condition: altering/submitting data in unsafe manner. It can be SQL, thread, or even multi-machine communication. Race condition is catastrophic because it does not show up in small, low-traffic application. In this talk, i will tell what race condition is and we will see common pitfall in building high traffic application. Of course we will also discuss on how to avoid it in Rails.

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Nimmy Vipin

Title: How you can use sentiment analysis for better customer engagement

Big data enables companies to make targeted, real time decisions that increase market share. Sentiment Analysis (SA) focuses on various ways to analyse big data to identify patterns and relationships, make predictions, deliver actionable intelligence and gain business insight.

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Rika Rumiyati

Title: How I met Ruby on Rails (and into it)

Ruby on Rails(RoR) is not a famous framework during my college years. Yet, as I entered my job in Cookpad as a developer I am introduced to RoR. The gap of thinking we learned enough at college vs work reality makes me want to share my RoR learning progress and takeouts for beginners like me.

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Rishi Jain

Title: Game Development - The Ruby way

Playing games is fun, but building one is even more fun. Add ruby to the mix, it gets awesome. Gosu is the library which is used for game-development. You will learn about the maths and technical stuff such as gameloop, animations, collisions etc needed to develop games. Also get to play cool games.

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Shaiju E

Title: Give REST a rest, use GraphQL for your next Ruby API

GraphQL is a query language for APIs. While typical REST APIs require loading from multiple URLs, GraphQL APIs get all the data your app needs in a single request which makes Apps using GraphQL can be quick and stable. So my talk would be about implementing GraphQL API in a Ruby application.

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Taufan Aeroperkasa

Title: Breaking the Circuit using Hystrix and JRuby

How can we stop cascading failures in a complex distributed system? How to prevent a network or service failure from cascading to other services and degrade gracefully while doing so? We can achieve that by utilizing a Circuit Breaker pattern.

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Taufiq Muhammadi

Title: The Future is the Past is the Future: Building a Static Site in 2017

Have you ever noticed that most of the internet is blog like? Wordpress and other CMS has make the commoners web easy, but boring. This talk will tell you how we party like it's the 90's using static site tool of 2017, building a hand curated knowledge-base website for our SaaS customer

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Tony Vincent T.Y

Title: Meet Crystal - Ruby's compiled younger sibling

We all know Ruby is awesome, many of us fell in love with its simplicity. But what about speed? Like many interpreted languages Ruby is not known for its speed. What if you have a language as expressive and simple as ruby yet blazingly fast? That's Crystal Lang for you, Fast as C and Slick as Ruby

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