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Want to learn how blockchain development is done in 2020? Check out GoodFirms' interview with Arseniy Seroka, the CEO of Serokell.

GoodFirms Interviews Serokell CEO Arseniy Seroka

GoodFirms Interviews Arseniy Seroka, CEO for Serokell IT Firm

> "Our main assets are functional programming languages and a strong mathematical background. Together, they let us solve complicated non-trivial tasks." – Arseniy Seroka 

Our CEO Arseniy Seroka was recently interviewed by GoodFirms, a B2B research and rating company. In the interview, they discuss the strengths of Serokell's approach to programming and business, and Arseniy gives a brief introduction to the Serokell client base and the fields we have expertise in. 


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<img src="/files/88/88cu7y7x.small.6j9b8bxh.arseniyseroka.ng.jpg" alt="Arseniy Seroka">
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Arseniy Seroka, the CEO of Serokell</i></center>

If you would like to learn about blockchain development in 2020 and discover how to improve your blockchain project, the interview has a few tips on that as well. 

You can read the full interview [on the GoodFirms website](https://www.goodfirms.co/company/serokell#interview).

Introduction to GUI Programming in Haskell

Learn how to do GUI programming in Haskell with GTK+.

**Update:** You can watch the full talk on [YouTube](https://www.youtube.com/watch?v=k1aq8ikO-8Q&t=2s).

Join us on 1st October, 17.00 UTC to learn more about GUI programming in Haskell. 

Our software engineer Vladislav Zavialov will give a talk on how to use Haskell and GTK+ to build graphical user interfaces in a functional programming language. He will talk about topics such as:

*   Initializing the build environment with Nix.
*   Creating an app using GTK+ widgets. 
*   Offloading work to other threads, using `GLib.idleAdd`. 
*   Documentation and resources to study if you want to build an app of your own.

This is a great way to get started with GUI development in Haskell and find answers to any questions you have. 

To watch the talk, [join us](http://meet.google.com/fui-diin-uxk) on 1st October, 17.00 UTC. 

<center>
	<i>Think you'll forget? Add the event to your Google Calendar.</i>
<a target="_blank" href="https://calendar.google.com/event?action=TEMPLATE&amp;tmeid=NWltOWp2dWNiZnQzM2RybjR1aHJyamNlcjYgY18ya2Y1M2U5OTdxNjJmdWl0N2xza2hjaG4yc0Bn&amp;tmsrc=c_2kf53e997q62fuit7lskhchn2s%40group.calendar.google.com"><img border="0" src="/files/xm/xmvysj0o.gc_button1_en.gif" alt="Link to Google calendar"></a>
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![talk picture](/files/2g/2glb7e7k.Vladislav-Zavialov-.jpg)

By the way, if you haven’t yet seen our previous talk by Maxim Koltsov, we highly suggest checking it out. In it, Maxim goes over how evaluation and GC in Haskell work, going deep in the compilation pipeline of Haskell, showing some interesting details of intermediate languages that GHC uses, and giving tips to optimize GC in Haskell. 

<iframe width="560" height="315" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen="" data-src="https://www.youtube.com/embed/vvLDerKtUWE"></iframe>

Serokell at ZHF Hackathon

Last Friday, some of Serokellers participated in a hackathon in Moscow. Read about the hackathon and their experience in the article.

Last Friday, some of Serokellers participated in a semi-physical [Zero Hydra Failure Hackathon](https://nixhax.github.io/zhf-21.11/index.en.html) in [undefspace](https://undef.club/#about), Moscow.

![event attendants](/files/w2/w2p5yba2.5ef5b309d40d414bbc1dbdeeed5d4cb19cdfbfde.jpeg)

Together with other attendants, we managed to push more 6 PRs in less than 8 hours and fix a lot more packages (due to a fix of  `openjfx` by our site reliability engineer Alexander Bantyev). 

![yx0ymu17.IMG_20211120_004153.jpg](/files/yx/yx0ymu17.IMG_20211120_004153.jpg)

If you want to learn more about the event, you can read a short writeup on the [NixOS Discourse](https://discourse.nixos.org/t/zhf-hackathon-celebration-event/16079/5).

Software Outsourcing Journal, an independent research platform, ranked Serokell among Top Software Outsourcing Companies in the USA.

Serokell among leading U.S. software outsourcing agencies

Serokell has been listed among [Top Software Outsourcing Companies](https://softwareoutsourcing.com/usa/) in the United States by Software Outsourcing Journal. 

The U.S. software outsourcing companies are sought-after thanks to their cutting-edge IT solutions and services. Software Outsourcing Journal provides a platform for businesses to help them find a partner aligning with their specific business requirements. Through this platform, companies can access top talent, industry knowledge, and premium tools the listed companies possess.

Software Outsourcing Journal, which links outsourcing suppliers with businesses globally,  offers an expansive database of credible technology firms from  mobile/web application development to comprehensive IT infrastructure management. The platform is known for its values, which include quick communication, thorough research, and careful selection to showcase the best in global IT. Last but not least, it guarantees its users unbiased and up-to-date details about technology firms, including services, pricing structures, and areas of expertise.

Serokell is equipped with a team of top professionals with backgrounds in programming, computer science, software engineering, mathematics, marketing, management, and design. Our expertise enables us to address and cater to various client interests and objectives and maintain the highest industry standards. Serokell is proud to have gained recognition from Software Outsourcing Journal. It acknowledges our commitment to delivering high-quality software development services. 


Serokell Recognized Among Leading U.S. Software Outsourcing Companies

Viktor Kazanski

Denis Oleynikov

Pavel Golovin

Mika Logan

Constantine Ter-Matevosian

Alexey Danilevsky

Vladimir Serov

Nikolay Yakimov

Inna Logunova

Ivan Smetannikov

Aleksandr Pak

Leonid Vasilev

Ilya Lubimov

Andrey Borzenkov

Markus Barenhoff

Kirill Kizilov

Kristina Martin

Nurlan Alkuatov

Jay Zelenskyi

Adrián Enríquez

Anton Sorokin

Uliana Sushinskaia

Vadym Salnyk

Daniel Kazantsev

Vito Canadi

Chris Höppner

Lars Jellema

Yorick van Pelt

Yegor Timoshenko

George Agapov

Kirill Andreev

Brian Kean

Val Baturin

Kyrill Briantsev

John Burnham

Ivan Dolgakov

Kirill Elagin

Pavel Gliev

Joakim Goldkuhl

Ivan Gromakovsky

Kostya Ivanov

Murat Kasimov

Alexander Rukin

Vasiliy Kevroletin

Mikhail Kilianovski

Maxim Koltsov

Dmitry Kovanikov

Artem Kuznetsov

Nikita Lisitsa

Allan Lukwago

Dmitry Mukhutdinov

Alexander Nikolaev

Dmitry Nikulin

Konstantin Andriotis

Artem Ohanjanyan

Ilya Peresadin

Pasquale Pinto

Danya Rogozin

Rinat Stryungis

Alexander Tiunov

Paul Tsupikoff

Mitchell Vitez

Josef Vlach

Mikhail Volkhov

Murad Murzaev

Vladislav Zavialov

Arseniy Seroka

Jons Mostovojs

Felix Stegerman

Roman Melnikov

Jaroslav Shadrin

Marina Sharygina

Leonid Cupikov

Ping Chen

Sergey Litovchenko

Nadir Asanbekov

Dmitry Lifanov

test1

Domagoj Cerjan

Ellina Poponnikova

Dmitrii Susloparov

Damir Garifullin

Aleksandr Pakulev

Kirill Kuvshinov

Roman Alterman

Anton Dobrenkiy

Alexandra Voicehovska

Eduard Sachava

Sandeep Chandrika

Grigory Pevnev

Artem Velychko

Olga Bolgurtseva

Yulia Gavrilova

Zhenya Vinogradov

Alexander Bantyev

Stepan Prudnikov

Moremi Vannak

Fedor Fedorov

Krisztián Ádám

Alyona Antonova

Artem Yurchenko

Diogo Castro

Heitor Toledo Lassarote de Paula

Ilona Prikule

Natalya Kokova

Daria Smirnova

Serokell PR

Gints Dreimanis

Ivan Markov

Andrey Demidenko

Dmitriy Mozhevitin

Iurii Kravchenko

Vlad Shcherbina

Preetham Gujjula

Dina Safullina

Alexey Khaciyants

Dmitri Puzyrev