The Exercism team

The Exercism team is made up of our our core team, our track maintainers, our mentors, and volunteer contributors.

Our track mentors

Our mentors are the human element behind Exercism, providing empathetic feedback on learners' solutions

Avatar of Hieu Nguyen

Hieu Nguyen GitHub

I'm a javascript developer with deep knowledge in the language itself and NodeJS. Recently i started learning Python as my secondary. Java was used in the past, but no longer my primary language
Avatar of Richard Leurs

Richard Leurs https://github.com/EarthlingRich

My love for technology, design and learning made me choose to be a developer. Building professional and personal projects with C# made me really like this fully-featured and expressive language.
Avatar of Joao Machado

Joao Machado https://github.com/jvmachadorj

Everyday Python keeps surprising me with the simple! I work professionally with python and I do some side projects as well and I want to share my knowledge with the world! And learn in the way!
Avatar of Ryan Potts

Ryan Potts https://github.com/rpottsoh

I have been using Delphi professionally since 1996. Exercism is my first real push into Open Source and I'm happy to have this opportunity to teach and share the virtues of Delphi with others.
Avatar of Oliver Radini

Oliver Radini Oliver Radini

I'm a Javascript developer. I've been working with Javascript for around 5 years now. I really love to help beginners learn to program, and show people what a great language javascript can be.
Avatar of Christophe Bliard

Christophe Bliard https://github.com/cbliard

I'm a Ruby on Rails developer and I fell in love with Ruby many years ago, probably because it is made for developer happiness and productivity. Happy to help you learning this nice language!
Avatar of Guy Gastineau

Guy Gastineau https://github.com/guygastineau

I love working in bash so much that I refuse to use DM's. When I want an open-box or i3 session I can choose to start X, but a computer that drops me straight into a tty just feels like home!
Avatar of Maisam Somji

Maisam Somji https://github.com/msomji

I'm a full stack developer with a love for all things related to functional programming. I spend the bulk of my time solving complex problems using simple but not necessarily easy solutions.
Avatar of Vitor Fernandes

Vitor Fernandes https://github.com/vmlf01

I'm a fullstack developer working mostly with Node and Angular. I've been tracking TypeScript evolution since version 1.8 and I've used C# for most of my career, so I'm no stranger to types!
Avatar of Tyll Weiß

Tyll Weiß https://github.com/Inkdpixels

I love JavaScript for it's flexibility and fast-paced community. I've written and maintained quite a bit of Node and browser oriented Javascript projects, both personally and professionally.
Avatar of Leo Zhu

Leo Zhu https://github.com/leapoldzhu

Python is a beautiful language, which is different with C/C++, need more creativity to learn it. Don't feel sorry for what you don't know, just enjoy learning, enjoy Python, enjoy your life!
Avatar of Thomas Kahn

Thomas Kahn https://github.com/thomasbkahn

As a Data Scientist, I found Julia to be very powerful in my own work and I am excited about its future. It's the perfect time to start learning Julia now that version 1.0 has been released.
Avatar of Michael Stephens

Michael Stephens https://github.com/mikestephens

I am a backend engineer that absolutely love's ruby. I've been doing it for over 6 years and love how easy to pick up it is but has all the intricacies to keep you digging for more knowledge
Avatar of Pierre Thierry

Pierre Thierry https://github.com/kephas

I fell in love with Common Lisp for its interactivity, metaprogramming and uniform syntax. If I have any say, it's usually my language of choice for both professional and personal projects.
Avatar of Aaron Strick

Aaron Strick website

Elm was my introduction to typed languages and a gateway for me to functional programming. I was lucky enough to learn it on the job, and have since adopted it as my main frontend language.
Avatar of Lidonis Calhau

Lidonis Calhau https://github.com/lidonis

I have been a web developer for quite some time. I really like Kotlin because it's design the way a would write a new OO language. I hope we can learn it a little bit better on this track.
Avatar of Isaiah Awotide

Isaiah Awotide GitHub Profile

I love JavaScript for its elegant syntax especially ES6, I am passionate about Financial Technologies, Bachelors in Economic Sciences with unusual passion for technology, I do anything Js.
Avatar of Andi Rückauer

Andi Rückauer Personal Blog

Passionate about PHP and clean code. Work professionally with PHP and contribute to OSS projects whenever I can. Sharing my knowledge with others is a great learning experience for myself.
Avatar of Cosima Meyer

Cosima Meyer https://github.com/cosimameyer

Throughout my studies, I was introduced to R in 2013 and discovered the beauty and flexibility of this language.I use R on a regular basis for my PhD project in peace and conflict studies.
Avatar of Unathi Chonco

Unathi Chonco https://github.com/choncou

I'm a Ruby on Rails developer who thinks Ruby and the entire ecosystem is glorious. I've had a pull request merged into Rails, and love finding opportunities to contribute to open source.
Avatar of Pablo Vicente

Pablo Vicente https://github.com/pvcarrera

I've been writing code professionally for 10 years. In the last 5 years, Ruby has been my main language. I think Ruby is a great language and I'd love to help other people get into it :-)
Avatar of Júlio Leitão

Júlio Leitão GitHub

Enjoying the Functional Programming paradigm to solve problems and build solutions with quality, maintainability, and great code design. Elixir is one of the best options on the FP world.
Avatar of Alexis Brodeur

Alexis Brodeur https://github.com/brodeuralexis

I've been an avid Elixir user for over 2 years. It is the language I want to be using professionally. Everyone I know knows about my passion for Elixir, which is why they call me Alexir
Avatar of Paulo Gonzalez

Paulo Gonzalez https://github.com/pdgonzalez872

I'm transitioning to using Elixir full time. I try to use it as much as I can on my free time as well. I'm excited to mentor folks starting out and can hopefully learn new things as well!
Avatar of Ian McCowan

Ian McCowan writing and music and what not

Python is the first language I taught myself, and the one I used at my first job. I love its relative accessibility to newcomers and the huge ecosystem you can grow into as you learn it!
Avatar of Chanaka Lakmal

Chanaka Lakmal https://github.com/ldclakmal

As a contributor of Ballerina language, I find Ballerina makes it easy to write microservices that integrate APIs while maintaining reliability, scalability, observability, and security.
Avatar of Anandakumar U

Anandakumar U LinkedIn

I've been professionally developing C applications for over 8 years now. Interested in Go, JS, TS and Java. Love to teach anybody programming and love to learn anything from anybody too!
Avatar of Carl Anderson

Carl Anderson

Former Google SRE. While at Google, I was a Python readability reviewer and loved it! Since then I've tried to stay current with python 3, but there's always something new to learn...
Avatar of Jim Miller

Jim Miller https://github.com/jim-miller

I have worked with a wide assortment of technologies and languages over the last 20 years. I caught the FP bug through Scala in early 2015 which I've been using professional since then.
Avatar of Alban Dericbourg

Alban Dericbourg Blog

Software engineer for 10 years now, mostly experienced on the JVM (Java and Scala) for web facing systems. Eager to learn, you'll probably find me trying new things on the other tracks!
Avatar of Carsten Dreesbach

Carsten Dreesbach https://github.com/HerbCSO

I've been using Java in my job for about 15 years now, but only became a full-time engineer about a year and a half ago (was in professional services doing customizations before that).
Avatar of Darrell Pittman

Darrell Pittman https://github.com/darrell-pittman

20 years experience, mostly java, javascript and ruby. I love functional programming and have been studying clojure for ~6 months. I have done one small clojure project professionally.
Avatar of Jayaram Kancherla

Jayaram Kancherla https://github.com/jkanche

I use R in my work quite frequently and was introduced a long time ago when i was in grad school. I love the flexibility and readability of the language and would love to help others!
Avatar of Owais Ali

Owais Ali My Profile

I am a Computer Science graduate and Software Engineer who loves to write software to build great products which help businesses, communities and individuals succeed with their goals.
Avatar of Yannick Dawant

Yannick Dawant https://github.com/ydawant

I've been using Python professionally for the past 5 years. I was lucky to be surrounded by great teachers and mentors on my path to becoming a developer. Excited to pay that forward!
Avatar of David Wessman

David Wessman https://github.com/davidwessman

Ruby was the starting point for me learning to program. It still is my go-to-language for web applications and my knowledge made it easier for me to learn new languages I use at work.
Avatar of Yakov Gnusin

Yakov Gnusin https://github.com/ignusin

I used imperative languages like C# and Java for ages. I became a big fan of functional programming recently with F#. I'd love to help other people to master that technology as well.
Avatar of Josh Morrow

Josh Morrow https://github.com/jcmorrow

I've been using ruby professionally for five years. It was the first language I really fell in love with, and it's still my goto tool for quite a few tasks including web development.
Avatar of Raphael Costa

Raphael Costa https://github.com/costaraphael

I'm an Engineer/Teacher using Elixir at my day job and in my side projects as well. I gave talks on Elixir and functional programming at some events, one of them being ElixirConf EU.
Avatar of Jaime Martinez

Jaime Martinez LinkedIn

I first started working with Go over 4 years ago writing REST APIs, I fell in love! I have been working with it ever since. I love spreading the Go-love, I hope can do that here too!