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Russian education company, Hexlet, has recently interviewed one of our software developers that work on Glasgow Haskell Compiler: Vladislav Zavialov.

Interview With Vladislav Zavialov by Hexlet

Russian education company, Hexlet, has recently interviewed one of our software developers that work on Glasgow Haskell Compiler: Vladislav Zavialov.  
 
The title of the interview was “What do you expect from a junior developer?”, and it featured multiple other experts.  
 
You can read the interview [on Hexlet’s blog](https://ru.hexlet.io/blog/posts/chego-vy-zhdyote-ot-dzhuniora-otvechayut-rukovoditeli-i-opytnye-razrabotchiki) (in Russian).

If you wish to read other articles by Vladislav Zavialov, head to his recently published [10 Reasons to Use Haskell](https://serokell.io/blog/10-reasons-to-use-haskell) or follow him on [Twitter](https://twitter.com/int_index).

### Hi everyone! 

Let us tell you what happened at **FPure Conference in Kazan**.

The main event list of speakers was amazing – actually, it was expected from the only functional programming conference in Russia.

Alexander Granin, lead of the Novosibirsk LambdaNsk community, talked about two different approaches in functional programming – Final Tagless and Free Monad. [Vitaliy Bragilevsky ](http://https://twitter.com/_bravit) from SFEDU made a short lecture about building a compiler, and Alexey Pirogov from Hexlet talked about functional design and FP patterns.

What about us? Our haskellers [Danya](http://https://twitter.com/CartesianClosed) and Rinat performed excellently (congratulations once again!) It was a great opportunity for guys to represent their work and shake some hands, of course.

Our engineers gave a talk about approaches and problems of the type-driven development in Numeric Haskell. The visitors were posting their impressions online on Twitter. We selected some of the tweets to share with you.

https://twitter.com/_bravit/status/1132201805797052416
“They’re telling programmers about Presburger arithmetic. This is useful!”

https://twitter.com/xufocoder/status/1132202918923440128
“It seems that I’m starting to understand what is happening here. The dimension of the matrices cannot be controlled with the types that guys use when they solve their ML tasks. This problem can be solved using dependent types, but Haskell doesn’t have this feature! What to do? Emulate.”

https://twitter.com/xufocoder/status/1132206956788297728
“If your code is simple and the algorithm is not COMPLICATED, you may skip messing around with dependent types in your Haskell programme. But if you need to deal with it, remember that you will have to make efforts to prove your code is correct to the compiler at least.”

Meanwhile, Danya and Rinat are writing the next chapters of their series “Dimensions and Haskell”. 
“The second and third parts of the article series are going to be the most intense. In the blog post, we’re going to depict how we solved the issues and where our approach came from. After that, we will show various examples and explain how the approach is useful.

A couple of words about our approach. It can be applied not only to dimensions but to any parameters. It can be designed as a library which is compatible with any of matrix libraries and allows separating an algorithm from the proof of its correctness. But no more spoilers! Just believe me, it’s going to be hot.” 
– Danya Rogozin

The second part of the series is coming soon, stay tuned!

Serokell leverages functional programming to create bespoke solutions for a wide range of industries, including [biotech software](https://serokell.io/biotech-software-development), fintech and edtech platforms, and more. Contact us to discuss your idea!

Serokell at FPure 2019

Serokell Ranked in Top 100 Fastest-Growing Companies in 2021 by Clutch

Serokell has recently been ranked among the top 100 fastest-growing companies in the world by absolute revenue growth on the Clutch platform.

Serokell has recently been ranked among the top 100 fastest-growing companies in the world by absolute revenue growth on the [Clutch](https://clutch.co/) platform. 

Clutch is an online aggregator that conducts research and regularly publishes lists of top B2B companies in various domains. They provide a data-driven field guide to making business decisions by doing independent research and interviewing real clients. 

For more details, read the full [press release](https://clutch.co/press-releases/special-report-recognizes-top-b2b-service-providers-sustained-fast-growth-2021).

We Are Hiring a Haskell Team Lead

We’re seeking an experienced software engineer to supervise a team of Haskell developers.

Serokell is a fast-growing, fully-remote software development company that works on innovative solutions for complex problems in fields like biotech and data science. We’re packed full of adventurous, curious, and inclusive folks that want to build cutting-edge software with modern technologies like functional programming.

We’re seeking an experienced software engineer to supervise a team of Haskell developers. Our work is not only limited to Haskell development, so you will sometimes have to delve into and supervise other fantastic things, such as **research**, **frontend,** or **packaging**.


## **Duties**

Your primary responsibility will be to be the leader of a Haskell devotee team; the person eager to **review solutions**, **advise**, and **propose your own ideas**.

As a team lead, you will be responsible for:

*   **weekly** **status updates** and **monthly reports** to the customer
*   reviewing **PRs** and modifying code if necessary
*   assessing every member of your team by providing **fair** **feedback**
*   helping **team members** achieve their career goals
*   evaluating **top candidates** in case of team expansion
*   supervising **research** in the project you're leading


## **Requirements**

*   **solid understanding** of Haskell or a **strong will** to learn it
*   previous **experience** with managing software development teams
*   **spine of steel** for robust software development
*   **capacity** to review a lot of code
*   **determination** to manage issues
*   **openness** to new languages – be it Elixir, OCaml, or TypeScript.

Last but not least! We hope you like **Nix** as much as we do. We use Nix for plenty of things, although we do sometimes use other platforms like Docker too. Luckily, we have a dedicated team of Nix experts who are always happy to help.

By joining Serokell, you’ll become a part of a warm community of ingenious engineers, computer scientists, designers, marketing experts, and other inventive people. You will be able to take part in ambitious projects that work on building the next generation of computer software, try out crazy initiatives unhindered by bureaucracy or judgment, and have fun in our Slack channels that range from #music to #butthurt (did we mention the huge custom emoji set?).

If you’re ready for the adventure of your life, contact us via email: jobs@serokell.io.

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

Yato Rin

Ruben Astudillo

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