YOW! 2018 Brisbane Day 1

Mon, Dec 3
08:00

    Registration for YOW! Brisbane 2018 - 45 mins

08:45

    Session overview and introductions - 15 mins

09:00

    The Origins of Opera and the Future of Programming - 60 mins

10:00

    Morning Coffee Break - 30 mins

10:30
  • schedule 10:30 AM - 11:20 AM place Red Room

    Microservices sound appealing, but what can we do with those ten-million-line code bases? Shared domain objects, horizontal coupling, and years of boundary erosion have left us with enormous complexity and spiderwebs of coupling. Michael will share techniques at various levels of abstraction, from implementation details to API design and responsibility allocation. There’s no silver bullet that will make it easy to decompose a monolith, but you’ll learn some techniques that have helped and some pitfalls to avoid, all based on Michael's experience with both successful and failed transformations.

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    Dave Cheney

    Dave Cheney - Lessons learned building Kubernetes controllers

    schedule 10:30 AM - 11:20 AM place Green Room

    In this talk I'll discuss my experiences building Kubernetes controllers using as a case study Contour, a new Kubernetes Ingress controller, that I've been working on since joining Heptio.

    This presentation will cover:

    • What an ingress controller is and what role it plays in a Kubernetes cluster.
    • Why Heptio chose Lyft's Envoy proxy as the data plane for our ingress controller.
    • How Contour works as a translator from Kubernetes to Envoy. The parts that were a good match, the parts that weren’t, and how we dealt with it.
    • How to develop a component of an interactive system like Kubernetes while avoiding the dreaded compile/push/deploy time sink.
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    Sid Anand

    Sid Anand - Big Data, Fast Data @ PayPal

    schedule 10:30 AM - 11:20 AM place Blue Room

    PayPal processes more than $1B in payments every day, is an accepted method of payment in over 200 countries, and covers everything in the online payments ecosystem from issuing credit and debit cards, to supporting credit card & POS processing, facilitating checkout at online merchants, and making it easy for friends to split a dinner bill or resolve shared expenses. All of this convenience comes with the added security of some of the most advanced fraud prevention algorithms powered by huge repositories of data. Given the vast ecosystem that PayPal has been playing in over the past 20 years, PayPal has collected large amounts of payment transaction and contextual data relating to consumers, merchants, and products -- over 150PB of data to be precise. How does PayPal manage this massive amount of data while all the while extracting useful insights that can propel the business ever forward? Come to this talk to find out!

11:30
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    Neal Ford

    Neal Ford - Building Evolutionary Architectures

    schedule 11:30 AM - 12:20 PM place Red Room

    An evolutionary architecture supports guided, incremental change across multiple dimensions.

    For many years, software architecture was described as the “parts that are hard to change later”. But then microservices showed that if architects build evolvability into the architecture, change becomes easier. This talk, based on my upcoming book, investigates the family of software architectures that support evolutionary change, along with how to build evolvable systems. Understanding how to evolve architecture requires understanding how architectural dimensions interact; I describe how to achieve appropriate coupling between components and services. Incremental change is critical for the mechanics of evolution; I cover how to build engineering and DevOps practices to support continuous change. Uncontrolled evolution leads to undesirable side effects; I cover how fitness functions build protective, testable scaffolding around critical parts to guide the architecture as it evolves.

    The software development ecosystem exists in a state of dynamic equilibrium, where any new tool, framework, or technique leads to disruption and the establishment of a new equilibrium. Predictability is impossible when the foundation architects plan against changes constantly in unexpected ways. Instead, prefer evolvability over predictability. This talk illustrates how to achieve evolutionary architectures and how to retrofit existing systems to support better evolution.

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    Avdi Grimm

    Avdi Grimm - #NOCODE

    schedule 11:30 AM - 12:20 PM place Green Room
    For beginning programmers, coding is a superpower. But as we gain experience, code-centric thinking can become a trap. Prepare to have your conception of what it means to be a programmer challenged, as we explore how to increase your leverage by choosing NOT to write code.
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    Juliet Hougland

    Juliet Hougland - Enabling Full Stack Data Scientists

    schedule 11:30 AM - 12:20 PM place Blue Room

    Autonomy and ownership are core to working at Stitch Fix, particularly on the Algorithms team. Data Scientists are expected to build their systems end to end and maintain them in the long run. We rely on automation, documentation, and collaboration to enable data scientists to build and maintain production services. In this talk I will discuss the platform we have built and how we communicate about these tools with our data scientists.

12:20

    Lunch Break - 60 mins

01:20
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    George Fairbanks

    George Fairbanks - Code is Your Partner in Thought

    schedule 01:20 PM - 02:10 PM place Red Room

    We used to build software like bridges. There was time for careful collection of requirements and the analysis of design options. But we don't do that anymore, in part because the time we spent did not ensure we hit our targets or avoided risks. Today, most companies use some form of continuous design where the software changes in small steps, often weekly or even daily, which makes those companies responsive to environmental changes. The problem is that in just a few years the software becomes over-complicated and usually needs to be rewritten, even when the team refactors. The longer you let the team code, the worse the code gets. That's a shame because other kinds of engineering don't have this problem. Car engines, for example, improve every year. I'll primarily discuss some ideas about why things work out this way and also some promising ideas for how we can practice continuous design longer, if not forever.

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    Jessica Kerr

    Jessica Kerr - Shaving the Golden Yak

    schedule 01:20 PM - 02:10 PM place Green Room

    Programming is a series of frustrations. Everything we do, we could do better or faster if we only had our tools set up just so. If our error messages were a little better, our code a little cleaner, our tests a lot wider. When we spend time on this, it's known as "yak shaving," and it can get messy.

    How do you balance the work you’re supposed to be doing with the work that makes your work, work? Dive into the yak stack with me. We'll see five different species of yak, and discuss how and when to tackle each one. At the bottom of the yak stack, we might find the Golden Yak, with secret wisdom engraved on its skin.

    This session will give you reasons to spend time smoothing your development experience, and clues for where to spend that time in ways that help your whole team.

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    Dean Wampler

    Dean Wampler - Streaming Data with Kafka and Microservices

    schedule 01:20 PM - 02:10 PM place Blue Room

    When we think of modern data processing, we often think of batch-oriented ecosystems like Hadoop, including processing engines like Spark. However, the sooner we can extract useful information from our data, the better, which is driving an evolution towards stream processing or “fast data”. Many of the legacy tools, including Spark, provide various levels of support for stream processing, but deeper architectural changes are emerging.

02:20
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    Barry O’Reilly

    Barry O’Reilly - Why Great Leaders Must Unlearn to Succeed in Today’s Exponential World

    schedule 02:20 PM - 03:10 PM place Red Room

    Effective leadership comes with a large learning curve. In today’s rapidly-evolving business climate, this is more true than ever for seasoned leaders and entrepreneurs alike.

    Many leaders rely too heavily on past achievements, practices, and ways of thinking to drive positive business results today, but they often need to unlearn those behaviors before they can take a step forward.

    Join executive coach Barry O’Reilly as he breaks down a transformative framework that shows leaders how to rethink their strategies, retool their capabilities, and revitalize their businesses for stronger, longer-lasting success.

  • schedule 02:20 PM - 03:10 PM place Green Room
    It’s half a century since the NATO Software Engineering conference in Garmisch. How are we doing? Are we nearly there yet? Or is there no there there?
    The world of software development has changed so much and in so many ways since 1968 that it’s difficult to imagine what we could learn from the past, but it’s learning rather than imagination that’s the constraint. There was no shortage of imagination, insight and inspiration in the 1960s and 1970s, and in many ways the apple of 21st-century software development has fallen disappointingly close to the tree of the past.
    So let’s turn back the clock to see what we could have learned from the past, what we can still learn from the past and what the future might hold in store for code and its development.
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    Joe Albahari

    Joe Albahari - Neural Nets From The Ground Up

    schedule 02:20 PM - 03:10 PM place Blue Room

    The best way to understand neural networks is to get your hands dirty and write one.

    In this session, we'll start from scratch and invent a neural net that can recognize handwritten digits with over 98% accuracy. Without leaning on any libraries! From the bottom up, we'll discover gradient descent, activation functions and backpropagation, as well as the mathematics behind this fascinating machine learning technology.

    We'll code entirely in C# in a lightweight IDE (LINQPad). And you'll get to keep the code!

03:10

    Afternoon Tea Break - 30 mins

03:40
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    Hila Peleg

    Hila Peleg - Automatic Programming How Far an Machines Go?

    schedule 03:40 PM - 04:30 PM place Red Room
    Program synthesis is the wild west beyond code generators and onward toward self-programming systems. What can it do for us? The answer, right now, is not a lot. It can harness the wisdom of the crowd to help reproduce scenarios that are repeated often, and in narrow scopes tools can make educated guesses about what the programmer intended, but full automatic program synthesis is likely impossible. Specifically because of this, it becomes most interesting to explore what it can't and won't be able to do on its own. Self-programming systems might be past the horizon, but getting a human more involved makes a big difference, and while the computer might never program for us, it might make for a decent pair-programming partner. We'll look at glimpses of this future, in academia and outside it, and see why they're more IDE plugins and less the robot apocalypse.
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    Gary McGraw

    Gary McGraw - How to Avoid the Top Ten Software Security Flaws

    schedule 03:40 PM - 04:30 PM place Green Room

    Software security defects come in two categories: bugs in the implementation and flaws in the design. In the commercial marketplace, much more attention has been paid to finding and fixing bugs than has been paid to finding and fixing flaws.That is because automatically identifying bugs is a much easier problem than identifying design flaws. The IEEE Center for Secure Design was founded to address this issue head-on. My presentation will cover the IEEE CSD’s first deliverable by introducing and discussing how to avoid the top ten software security flaws. The content was developed in concert with Twitter, Google, Synopsys, HP, Sadosky Foundation of Argentina, George Washington University, Intel/McAfee, RSA, University of Washington, EMC, Harvard University, and Athens University of Economics and Business. During the talk, I will introduce and discuss how to avoid the top ten software security design flaws. It's important, of course, to know that these flaws account for half of the defects commonly encountered in software security. But more important still is learning how to avoid these problems when designing a new system or revisiting an existing system.

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    Chris Ford

    Chris Ford - Functional Composition

    schedule 03:40 PM - 04:30 PM place Blue Room

    Chris Ford shows how to make music starting with the basic building block of sound, the sine wave, and gradually accumulating abstractions culminating in a canon by Johann Sebastian Bach. Examples live-coded in Clojure.

04:40
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    Chad Fowler

    Chad Fowler - The Future of Software Development

    schedule 04:40 PM - 05:30 PM place Red Room
    From autonomous vehicles, 3D printed rocket engines, and “affordable” consumer-owned satellites to rapid advances in AI and secure, decentralized electronic currencies, the past several years have shown us that the only prediction we can confidently make about the future is that it will arrive more quickly than any of us imagined. Yet with all of these major technological advances, the way we develop, test, deploy, and manage software has been incrementally changing over the years. Many of the most forward-thinking paradigms, practices, and technologies are based on concepts and even implementations created decades ago.
    How can software development itself benefit from the disruptive changes in technology in recent years? This talk will explore influences, tech trends and coming innovations which will change how we as an industry approach to software creation, maintenance, management, and even employment.
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    Randy Shoup

    Randy Shoup - Breaking Codes, Designing Jets, and Building Teams

    schedule 04:40 PM - 05:30 PM place Green Room
    Throughout engineering history, focused and empowered teams have consistently achieved the near-impossible. Alan Turing, Tommy Flowers, and their teams at Bletchley Park broke Nazi codes, saved their country, and brought down the Third Reich. Kelly Johnson and the Lockheed Skunk Works designed and built the XP-80 in 143 days, and later produced the U-2, the SR-71, and the F-22. Xerox PARC invented Smalltalk, graphical user interfaces, Ethernet, and the laser printer. What can this history teach us? Well, basically everything.
    Effective teams have a mission - a clearly defined problem which the entire team focuses on and owns end-to-end.
    Effective teams collaborate without hierarchy, across disciplines and between diverse individuals. It should be no surprise that Bletchley was an eclectic mix of "Boffins and Debs" - almost 75% women at its peak; or that Skunk Works' founding team included the first Native American female engineer.
    Effective teams rapidly learn and adapt. Constant experimentation, tight feedback loops, and a policy of embracing failure are all part of the recipe of success. Innovation does not arrive on a waterfall schedule.
    If this sounds a lot like DevOps, or true little-a agile, that's no coincidence. But too few organizations actually practice these three-quarter-century-old ideas despite the overwhelming evidence that they work. As Santayana wrote, "Those who cannot remember the past are condemned to repeat it." So let's relearn those history lessons.
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    Sam Aaron

    Sam Aaron - Live Coding the intersection between the Arts, Technology and Research

    schedule 04:40 PM - 05:30 PM place Blue Room

    Live Coding systems encourage us to think extremely differently about programming languages. In addition to considering standard requirements such as reliability, efficiency and correctness we are also forced to deal with issues such as liveness, coordination and synchronization all whilst working in real time.

    Live Coders not only run and modify code live — they often perform with it on stage in front of large crowds of people who really don't want the code to miss a beat. In this code and demo-heavy talk, Sam will introduce the motivation for Sonic Pi - a system designed specifically for live coding music - before taking a deep technical dive into the internal ideas and innovations. The audience will explore Sonic Pi's novel temporal semantics which allow multiple concurrent threads to execute in synchronization along with live hot-swapping of code.

    Ultimately, everyone will discover an exciting area of programming language research in an approachable and instructive manner all whilst making some sick beats and drops.



05:45

    The Future of High Speed Transportation - 60 mins

06:45

    Conference Reception - 60 mins

YOW! 2018 Brisbane Day 2

Tue, Dec 4
08:45

    Session overview and introductions - 15 mins

09:00

    Cloud Performance Root Cause Analysis at Netflix - 60 mins

10:00

    Morning Coffee Break - 30 mins

10:30
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    Bridget Kromhout

    Bridget Kromhout - Cloud, Containers, Kubernetes

    schedule 10:30 AM - 11:20 AM place Red Room

    Microsoft issued me a Mac when they hired me to help people use Linux on Azure. If this sounds like the beginning of a nerdy joke, it’s because we need to question long-held opinions, let go of deeply-cherished stereotypes, and welcome this new era of open collaboration.

    Let’s take the 10,000 foot tour of today’s cloud, containers, and orchestration landscape before diving into specifics we can use when making calls on microservices, backing data stores, and app decomposition. We’ll talk public cloud, containers, and k8s from the “Open at Microsoft” perspective!

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    Mark Hibberd

    Mark Hibberd - Failure and Change: Principles of Reliable Systems

    schedule 10:30 AM - 11:20 AM place Green Room

    As we construct larger or more complex systems, failure and change are ever-present. We need to accept and even embrace these tensions to build software that works and keeps working.

    This is a talk on building and operating reliable systems. We will look at how systems fail, particularly in the face of complexity or scale, and build up a set of principles and practices that will help us implement, understand and verify reliable systems.

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    Mikael Vidstedt

    Mikael Vidstedt - Java in a World of Containers

    schedule 10:30 AM - 11:20 AM place Blue Room

    Container technologies such as Docker are rapidly becoming the de-facto way to deploy cloud applications, and Java is committed to being a good container citizen. This talk will cover some of the new tools and techniques for reducing container size (jlink, Alpine/musl support), for improving startup time and sharing of data between JVMs (AppCDS and ahead-of-time compilation), and the recent work that has gone into interacting with container resource limitations.



11:30
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    Christine Yen

    Christine Yen - The Problem with Pre-aggregated Metrics

    schedule 11:30 AM - 12:20 PM place Red Room

    Pre-aggregated metrics and time series form the backbone of many monitoring setups and have many redeeming qualities, but simply aren't sufficient for capturing the many ways things can go wrong in modern or complex systems. Problems inherent in the concepts behind and implementation of pre-aggregated metrics prevent them from being effective for any sort of debugging or diagnostics; we'll talk about why that is, and what techniques we should be leaning on instead.

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    Casey Rosenthal

    Casey Rosenthal - Deprecating Simplicity

    schedule 11:30 AM - 12:20 PM place Green Room

    When engineering teams take on a new project, they often optimize for performance, availability, or fault tolerance. More experienced teams can optimize for these properties simultaneously. Now add an additional property: feature velocity. Mental models of architecture can help you understand the tension between these engineering properties. For example, understanding the distinction between accidental complexity and essential complexity can help you decide whether to invest engineering effort into simplifying your stack or expanding the surface area of functional output. Chaos Engineering was born within this conflict between feature velocity and increasing complexity. Rather than simplify, Chaos Engineering provides a mechanism for you to embrace the complexity and ride it like a familiar wave, maintaining our business priorities while dialing up feature velocity.

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    Dave Thomas

    Dave Thomas - Transforming Programming

    schedule 11:30 AM - 12:20 PM place Blue Room

    We're a generation of programmers who grew up with object orientation and imperative programming. When we transition to languages such as Elixir (and even some modern idioms in JavaScript), some of our old reflexes are no longer appropriate. Others are deeply useful, but in different and surprising ways. So, as we work towards the ideal of "programming by transforming", we mustn't forget to transform our thinking, too.

    (ps: reducers are objects...)

12:20

    Lunch Break - 60 mins

01:20

    3X: Explore/Expand/Extract - 60 mins

02:30
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    Chris Richardson

    Chris Richardson - Events and Commands: Developing Asynchronous Microservices

    schedule 02:30 PM - 03:20 PM place Red Room

    The microservice architecture functionally decomposes an application into a set of services. Each service has its own private database that’s only accessible indirectly through the services API. Consequently, implementing queries and transactions that span multiple services is challenging. In this presentation, you will learn how to solve these distributed data management challenges using asynchronous messaging. I describe how to implement transactions using sagas, which are sequences of local transactions, coordinated using messages. You will learn how to implement queries using Command Query Responsibility Segregation (CQRS), which uses events to maintain replicas. I describe how to use event sourcing, which is an event-centric approach to business logic and persistence, in a microservice architecture.

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    Jutta Eckstein

    Jutta Eckstein - BOSSA nova: Beyond Agile - Preparing for Digitalization

    schedule 02:30 PM - 03:20 PM place Green Room

    Today companies are expected to be flexible and both rapidly responsive and resilient to change, to both survive but also to thrive on disruptions. These challenges call for company-wide agility. Yet, doing Agile (the mechanics) is different from being Agile (the mindset). For example, substituting management meetings with daily Scrums or using a backlog for the board of directors doesn’t make a company agile.

    In order to become truly agile (meaning flexible, responsive, adaptive, fast, and nimble), you need to think outside the (agile) box. Company-wide agility requires a holistic approach, a combination of different principles: First and foremost the principles of

    • Beyond Budgeting (flexible budgeting & relative targets),
    • Open Space (leveraging the innovative power of all employees),
    • Sociocracy (flexible organizational structures and decentralized decision making), and –of course–
    • Agile (inspecting & adapting).

    We synthesized these proven principles into a wider perspective dubbed BOSSA nova: B = Beyond Budgeting, OS = Open Space, S = Sociocracy, A = Agile. Jutta will reveal a path toward company-wide Agility by showing the synthesis of BOSSA nova.

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    Cat Swetel

    Cat Swetel - The Metrics You Should Use (but probably don't)

    schedule 02:30 PM - 03:20 PM place Blue Room

    Have you ever had a gut feeling a project is about to go off course but no way to validate (or invalidate) that feeling? Has your team ever been burned by an inaccurate estimate or unreasonable expectation? Have you ever wished you could peer a bit into the future?

    Navigating the uncertainty of knowledge work is often difficult and uncomfortable. During this session, you’ll learn new ways to visualize your team’s reliability and variability of delivery using the data you already collect. Instead of relying entirely on your gut or laboring over estimates, you’ll learn to predict outcomes and describe their likelihood. While this session won’t teach you to eliminate uncertainty or allow you to see the future, it will provide you with tools to explore and chart a reasonable course through the inherent ambiguity of knowledge work.

03:30
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    Michelle Casbon

    Michelle Casbon - Kubeflow Explained: NLP Architectures on Kubernetes

    schedule 03:30 PM - 04:20 PM place Red Room

    There's more to a Natural Language Processing (NLP) application than an ensemble of models. Much more! Like any traditional application, there is an entire ecosystem of supporting tools that enables core ML functionality. How do you choose the best ones? Which ones can you do without? How do you maintain context when the complexity of such a system gets out of hand?

    In this session, you will learn how to deploy the full scope of an NLP application on Kubernetes with Kubeflow. The guiding principles of a robust and resilient system are explained and used as the foundation for defining a specific architecture. Techniques for modifying and maintaining it over time are described. Find out what Kubeflow currently supports and the long-term vision for the project, presented by a project contributor.

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    Randy Shoup

    Randy Shoup - Attitude Determines Altitude - Engineering Yourself

    schedule 03:30 PM - 04:20 PM place Green Room
    Success is not determined by our aptitude -- our skill at a particular task. Instead, it is determined by our attitude -- how we go about it. It is far less the contributions of genetics, or education, or circumstance than it is how we approach challenges, limitations, and opportunities in our lives. Through real science and some very personal stories, we will discuss how you can use your attitude to improve yourself.
    We begin by discussing Growth Mindset - Carol Dweck's idea that we can improve ourselves through sustained effort. Focus and attention will help us put in the 10,000 hours of deliberate practice that allow us to achieve mastery.
    We then discuss Trust - by trusting others to do their part and to do it well we can achieve both greater personal happiness and better business results. Generative organizations and psychological safety in teams are key themes.
    We finally discuss Confidence - from the underconfidence of the Impostor Phenomenon to the overconfidence of the Dunning-Kruger effect. Most importantly, we conclude with practical ways you can build and sustain your own confidence in yourself.
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    Kyle Simpson

    Kyle Simpson - Cancel All My Appointments

    schedule 03:30 PM - 04:20 PM place Blue Room

    The most complicated state in an application is time. Like cooking a bag of microwave popcorn, modern web applications desperately try to keep up with their state through an orchestrated chaos of asynchronous operations popping off in indeterminate cadence. No question, coordinating all this concurrency is hard.

    But there's a pitfall at the heart of asynchrony that stays mostly unaddressed.

    When an operation doesn't finish right away, synchronously, it's possible the operation may never finish. Or, it may be destined to finish eventually, but a second operation may be raised which means we no longer care about the first. Whatever the case, we need to be able to cancel it. This critical check ultimately protects users from the vagaries of unpredictable systems.

    Cancellation should be core to our async programming; no asynchrony should run without it. Too often, such handling is just a corner case exception. Without a cancellation strategy, your applications are incomplete at best.

    We'll discuss use-cases for async cancellation and various approaches to managing them.

04:20

    Afternoon Tea Break - 30 mins

04:50
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    Peter Sbarski

    Peter Sbarski - Serverless in Practice

    schedule 04:50 PM - 05:40 PM place Red Room

    A Cloud Guru built one of the largest platforms using serverless technologies like AWS Lambda and API Gateway (we don’t run a single server, anywhere). It has been an incredible journey and we learnt a lot of lessons scaling our platform to 650,000+ users.

    In this session we’ll share notes from our experience including:

    • What our serverless system looks like 2 years in (inc. key metrics, architecture, and cost)
    • Our serverless security posture
    • Important design patterns and architectures
    • Common serverless mistakes and how to avoid them

    We will dive in to the design of our platform and share interesting data, go through key patterns and architectures, and discuss what it actually takes to build a scalable, reliable and high-performing cloud-native serverless systems today. This talk will focus on AWS but many of the principles and concepts can be carried across to Microsoft Azure and Google
    Cloud Platform.

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    Aino Corry

    Aino Corry - The Importance of Laughter

    schedule 04:50 PM - 05:40 PM place Green Room
    In software development, we strive for inspection and adaptation. In order to make the best of this, we have to feel good about ourselves and with each other. Fun and laughter is something I have always tried to enhance in the places where I work, but only recently have I started looking into why it is helpful.
    Diving into this subject, I was amazed by how big an impact fun and laughter can have on your social life, your wellbeing, and your energy levels. Join me for a session with brain research, examples of fun, and case studies from real life. Bring an open mind and leave with knowledge about why you should have fun every day.
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    Jake Ginnivan

    Jake Ginnivan - What is 'this'? ¯\_(ツ)_/¯

    schedule 04:50 PM - 05:40 PM place Blue Room

    Have you ever wondered what _this_ actually is, and how it relates to other JavaScript black magic, like prototypes or the _new_ keyword? Many frameworks have been designed to hide you from needing to fully understanding this and many related concepts.

    In this session, Jake will dive into all of the above and will also cover how the new ES2015 language features like arrow functions, keywords like let, const and classes with constructor functions which make dealing with _this_ much easier to understand.

05:40

    Farewell Drinks - 60 mins