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Day 2
EN
This talk is an introduction to Vaadin Fusion. In contrast to the well-known Java-based Vaadin Flow, Vaadin Fusion offers the possibility of developing SPAs with TypeScript and web components in the frontend and Java in the backend.
72 Services LLC
Day 2
RU
We will talk about the schedule, sessions, and share the information. Join the broadcast to find out what's on the air soon!
JUG Ru Group
HAULMONT
Day 4
RU
Vladimir will talk about Apache Calcite — a project that allows to quickly create powerful cost-based optimizers that surpass in their capabilities the optimizers of any modern DBMS.
Querify Labs
FlowTraders
Day 3
RU
Live from the main studio of the Joker 2021 conference. We discuss refactoring.
Day 4
RU
Speakers will talk about backward compatibility, tools and approaches to control dependencies.
Sber
Sber
Day 1
EN
If you’re in the enterprise Java world, you’ve probably heard of “supersonic subatomic Java” with Quarkus. In this session, we’ll see how to build Quarkus applications that use Neo4j as a graph database to persist our domain entities.
We will look at use cases for which a graph database makes sense, effective querying, how to map the graph domain model in our code, and how to build user recommendations. Join us for this live-coding only session!
Day 1
RU
What's under the hood for programs that write their code? What are they lacking to do the job of a programmer? How will the development industry change because of these programs, and will it change at all soon? Is it time to be afraid of artificial intelligence, which will enslave us all? Nikita and Roman will try to answer all these questions during the session.
JetBrains
JetBrains
Day 4
RU
The important news this fall in the world of Java is the announcement of a new version of the most popular framework Spring Framework 6. From this talk you will learn what new features have appeared.
VMware
BeZero Carbon
Day 3
EN
Learn how to solve an NP-hard logistics optimization problem, such as maintenance scheduling, with OptaPlanner and Quarkus in Java.
Red Hat
Day 3
RU
You know Evgeny Borisov like Spring expert and its reaper. What if you are invited to a technical interview with Evgeny? Do you think you could pass it?
We set up the experiment, and this time instead of the talk Evgeny will hold an interview on air, where he will check hard skills of Joker program committee members. To make it look real, we decided not to tell the questions to the candidates before the interview.
Day 1
RU
Are GraphQL and REST really different?
We will discuss their features, cases when one technology may be replaced with the other, and if it's really always possible.
Maybe both technologies and their ecosystem are pretty developed, and they may be used equally?
Let's discuss it together!
Day 3
RU
GraphQL facilitates UI development in a complex subject area. Traditional backend for frontend pattern is simpler and more common for developing and load management. We will discuss the experience of implementing GraphQL API and new opportunities of Netflix GDC library for building federated GraphQL interfaces.
Sber
SberTech
Day 1
EN
We will explore the proven reactive toolkit Vert.x and the use of its reactive relational databases drivers. We will then use Hibernate Reactive to leverage the object-relational mapping power offered by Hibernate technologies for more than a decade. After this end-to-end journey in the reactive world, we will finally see how to use all of them in a Quarkus application.
Red Hat
Day 4
RU
Panel discussion: let's discuss who got off Java 8 and how they did it. Join the discussion at Zoom!
Oracle
Day 1
RU
We will talk about the schedule, sessions, and share the information. Join the broadcast to find out what's on the air soon!
Day 3
RU
In this talk Anton will share his experience on how we developed and deployed a platform for remote assistants at the production of the largest refining company in the oil and gas industry in our country. The basis of the platform is video communication with smart glasses using WebRTC. The speaker will tell what tools, libraries and frameworks were used, how they were implemented and what problems they encountered during this time.
Sibur
Day 2
EN
The Z Garbage Collector (ZGC) goal was to not exceed 10 ms pause times. But after achieving this goal Oracle wanted more. You'll learn more during this session.
Oracle
Day 2
RU
Live from the main studio of the Joker 2021 conference. Discussing Quarkus.
Day 1
RU
The talk is about Apache Cassandra database internals, how does it look like from a Java developer's point of view: how threads are organized, how memory is managing, what data structures are used.
Netcracker
Day 4
RU
Let's talk about codogeneration, its types, mechanisms and problems of use.
Accenture
Day 4
RU
In this talk Artem will try again to break the ice between development and QA using Java project as the example with both good old and new tools.
Qameta Software
Day 2
RU
The talk about tools and best practices for maintaining compatibility and API evolution.
JetBrains
Day 1
RU
In this talk, we'll try to look inside Java objects and see what lies in them. After that many tricks in the objects, footprint should become clear, as well as some features of runtimes, and it will be obvious what can be exploited forlow-lever purposes.
Red Hat
Day 4
RU
We'll talk about the popular technology for organizing interaction — gRPC. Let's talk about its main features and how to use them, focusing on the issue of load balancing.
Day 4
RU
There are many laws that are discussed when it comes to development. Colleagues from Deutsche Telekom IT Solutions will conduct a small quiz and talk with the guests of the session about serious and not very principles and theories that are encountered in the professional life of developers.
Day 4
RU
Stanislav Tretyakov, a Java developer in the financial sector, will tell you how to pass the final interview with a customer. He will explain the requirements and knowledge expected from middle- and senior-level developers, as well as the things you should immediately ask your potential colleagues about your job.
Luxoft
Luxoft
Day 4
EN
This talk will describe the status quo with static (native) Java apps, using GraalVM as an example to highlight both the promise and the potential perils presented by this new model for Java deployment and execution. It will proceed to highlight areas where OpenJDK project Leyden expects to underpin static Java with a precise specification, conformance suite, and reference implementation and detail some of the challenges faced in doing so.
Red Hat
Day 2
RU
In complex systems, operations staff and end users often ask: "What is happening inside the application? How quickly and efficiently requests are processed? Where and how many problems arise?"
Yuri will tell how to answer these questions by working not with the data itself, but with their traces — trace events in the system.
Deutsche Telekom IT Solutions
Day 3
RU
Modern backend Scala development almost fully submitted to structured concurrency based on the varieties of IO monad. But community looks split into ZIO ecosystem and Cats Effect users. Oleg will answer the questions about them in his talk.
Tinkoff
Day 2
RU
And the tasks are still the same... While the spaceships are wandering the Universe, the banking systems get different portions of updates from the development teams every week, such as technology update packages. This is what we are going to talk about in this talk:
Day 3
RU
Akhtiam will explain how to build modern distributed systems using Domain-Driven Design and Unix philosophy in practice.
m2.ru
Day 2
RU
In this session, we will have a look at real-life cases that might cause unpredictable results. We'll have a look at Hibernate, Spring, and Lombok and how they work together. There will be magic as well as disclosure. The purpose of the talk is to save a couple of hundreds of men-hours on debugging and search for the root of an issue.
Haulmont
Day 1
RU
An interview about the life and pain of the clearing team of PS MIR/Mastercard/Visa. The speaker will touch upon the problem of scalability of the project, talk about the experience of using Akka as the main framework and explain why the team decided to abandon it in favor of Project Reactor.
JUG Ru Group
Mir Plat.Form
Day 3
RU
Speakers will talk about their experiences in developing a Java team: they will share their advice, talk about the challenges they encountered, and answer questions.
Accenture
Day 3
EN
In Java, all objects have an identity from their memory address. When persisting them, a key is required. And this is where religious wars start... Natural key? Composite key? Surrogate key? Sequence or UUID? Let's see what they are.
Yugabyte
Day 4
RU
This year, Sber has introduced Platform V, its platform for developing a wide range of enterprise applications. The main objective of the platform is to provide developers with the tools to quickly create high-performance and reliable components. One of the platform's flagship products is Platform V Functions. It is a proprietary solution for the Function as a service approach. This framework will significantly reduce time to market for many products, so the Sber team is extremely interested in its rapid development. The backlog of the team is full of tasks related to serverless-computing research, development of new features and compatibility with the bank's systems, as well as cloud providers. This is what we will talk about.
Day 3
RU
The speaker is going to talk about general motivation to upgrade applications to Java 17. Also, he will talk about new production useful features, such as new GC, Records, enhanced support native applications, Memory API.
Maksim will talk about his thoughts and the view of his team about upgrading codebase (Camel services, Spring Boot, Spring Cloud, Kafka).
Moreover, he's going to discuss (un)expected future problems and how his team will try to resolve them.
Gazprombank
Day 1
RU
Case study on how Revolut stores and processes users financial transactions. Alexander will discuss the original "simple" services and DB architecture and how far the team was able to get with it, then analyze what problems we encountered when it was too late for this architecture and the CQRS that was built to solve these problems. The speaker will focus on the pros and cons of each architecture and some of the mistakes made along the way.
Revolut
Day 1
RU
Live from the main studio of the Joker 2021 conference. We discuss the prospects for artificial intelligence.
Day 1
EN
Come to this session to learn how JReleaser can help you release, publish, and announce binaries with ease, and fast!
Oracle
Day 3
RU
During his talk, Ivan will show you the whole process of creating a simple Telegram bot in Java, from registering with botFather to launching. He will introduce the nuances and pitfalls that you may encounter in development. After listening to the talk, you will be able to launch your own Telegram bot!
Luxoft
Day 4
RU
Live from the main studio of the Joker 2021 conference. Discussing Kotlin.
Day 3
RU
Internals of Jetpack Compose and Compose for Desktop.
SonarSource
Day 2
RU
Three years of hard work between Java 11 and 17. It's time to plan the migration to Java 17 - so let's remember the changes that happened between these releases. The talk from Ivan Krylov will give a brief overview of the changes in the language, platform and virtual machine.
Day 2
RU
In that talk, guys are going to bust the myth of Loom killing Reactive and instead discuss how Loom will improve the Reactive ecosystem and make it more robust and simpler to use.
VMware
National Technical University of Ukraine
Day 2
RU
The issue of soft skills development in IT is as acute as it is trivial. Maybe it is relevant because we are talking about engineers and technical specialists, i.e. people who are analytical, critical, systematic, concrete and like to break systems as much as to build them. And when it comes to soft skills, associations invariably arise with something abstract, difficult to define and "eternal" in terms of pumping. But are soft skills really something so complicated that they are relevant only if you are a team leader or are going to become one tomorrow?
Mir Plat.Form
Day 1
RU
This talk will cover all the necessary points preventing the horizontal scaling of Spring Boot applications.
GridGain
Day 3
RU
Dmitry will talk about minimalistic Alpine Linux, full support for which was recently implemented for both OpenJDK and GraalVM.
BellSoft
Day 4
EN
In this session, you'll learn about recommended patterns for securing your backend APIs, the infrastructure they run on, and your SPAs and mobile apps.
Okta
Okta
Day 1
RU
Often we would like to know how the developed system will behave under different load conditions. Andrey will share his ideas for simulation of microservice systems and will tell us how to
VTB
Day 3
RU
We will talk about the schedule, sessions, and share the information. Join the broadcast to find out what's on the air soon!
Qameta Software
HAULMONT
Day 4
RU
In this talk we will talk about the project setup, the Arrow Meta library features, and we'll take a look at the real use-case of adding a global naming strategy to kotlinx.serialization.
CircleCI
Day 3
EN
Learn about the evolution of the Reactive Relational Database Connectivity standard, from the idea until reaching 1.0.
VMware
Day 3
EN
This talk introduces Project Lilliput which aims to reduce Hotspot's header size to 64 bit or even less. A deep dive into JVM technology is guaranteed.
Red Hat
Day 2
RU
Aleksandr will talk about different kinds of documentation and will demonstrate the examples with Swagger usage.
He will also describe the cons of documentation and will tell how to make setting up more universal.
Gazprombank
Day 4
RU
We will talk about the schedule, sessions, and share the information. Join the broadcast to find out what's on the air soon!
Croc Code
Day 2
EN
Now, more than ever before, understanding your role in designing, building, and deploying safer software is critical. In this session, Steve will take you through the basics. Learn the three principles of software design specifically aimed at creating more secure and robust solutions.
Sonatype
Day 2
RU
At Revolut we initially built all processes based on remote work, because our teams are geographically dispersed with employees based in Moscow, St. Petersburg, London, Berlin, Krakow and other cities all over the world. Nevertheless, the offline part also existed. But 2020 has shown that from now on, all processes will work remotely, including onboarding new employees, lunch with colleagues, white board discussion, mentoring and code sharing. Now statuses in tasks and chats make much more sense than before, and the separation of work and life is becoming more difficult. Let's discuss how the development process and the accompanying processes will change in the new remote-only reality.
Revolut
Revolut
Day 3
RU
Live from the main studio of the Joker 2021 conference. We discuss Scala.
Day 4
RU
Live from the main studio of the Joker 2021 conference. Discussing Java 17.
Day 2
EN
Josh will look at how to build data gateways for every clients' needs with Spring GraphQL.
VMware
Day 2
RU
Dmitry will talk about flexible approaches to the development of software products, how to manage DS product development projects and deadline management for product teams.
The talk will also include the description of strategic objectives of the stages of the product life cycle, productivization of project solutions, problems and labour input and scaling development or scaling product teams.
Day 4
RU
We take stock, remember the bright moments and talk about our plans. Join the broadcast, so you don't miss anything!
Croc Code
HAULMONT
Day 2
RU
Do you know the real picture of the company's technology stack? Can you answer without difficulties what technologies and libs are used in different teams? Dmitry will briefly talk about such a tool as technical radar, and what advantages it provides.
Raiffeisenbank
Day 1
RU
With Aleksandr, we'll consider different approaches to math API and their realization in different programming languages (Python, C++, Julia, Java and Kotlin).
JetBrains Research
Day 4
RU
He has been working at BSS for more than 10 years. Since 2017 - technical director, responsible for technological development of the company and product architecture. He has more than 20 years of experience in implementing information systems for credit institutions. He participated in the implementation of projects for Sberbank, VTB, RSHB, Otkritie Bank, DOM.RF, Sovcombank, VBRR, Novikombank, AK Bars Bank, SMP Bank, Rossiya Bank, UBRIR, RGS-Bank, Center-Invest Bank, ZIL plant, etc. Worked as an architect, development manager, head of bank automation, team leader and developer. Passionate about machine learning and data analysis.
Banks Soft Systems
