Maximilian Haack

Maximilian Haack

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ABOUT ME
My code helps thousands of professionals to be more productive with their work all over the world.
My code helps thousands of professionals to be more productive with their work all over the world.

Hey! I've been a professional software developer for over a decade, with experiences in a broad spectrum of industries including oil and gas exploration, real estate, government and education sectors with a variety of different programming languages.

My goto language is Ruby and I've worked on numerous Ruby on Rails applications over the years. I used to be the Head of Ruby Development for a German software company and am the Ruby and Ruby on Rails Instructor at Skillcrush Inc. In my spare time I've co-organized and tutored at multiple RailsGirls events all over Europe.

I'm most effecitve in the backend of things but have shipped code all over the stack, on web applications, windows desktop applications as well as on mobile.

German, English
Eastern Time (US & Canada) (-04:00)
Joined February 2016
EXPERTISE
9 years experience
I started playing around with Ruby a little over seven years ago and soon after found myself at a startup in Amsterdam where we ended up ...
I started playing around with Ruby a little over seven years ago and soon after found myself at a startup in Amsterdam where we ended up building their application with Ruby on Rails. Ever since those first hours playing around with the language I've been deeply in love with Ruby's expressiveness and how it just clicks with my brain. My ruby career took me from building MVPs for startups to being the Head of Ruby Development at a Munich and San Francisco based company. During that time I also developed a deep passion for teaching beginners and intermediate developers how to program and have for over three years been the residing Ruby / Ruby on Rails Instructor at Skillcrush Inc. Over the years I have worked on many different applications written in Ruby, many with the help of Rails plenty without.
8 years experience
C# was the first object oriented language I learned back in the days where that still felt like a novelty. Over the years it has grown to...
C# was the first object oriented language I learned back in the days where that still felt like a novelty. Over the years it has grown to be a much liked and powerful companion. In recent years I've been working a lot with c#, developing ArcMap AddInns with ArcObjects as well as ArcGIS Pro AddIns with esri's new Pro SDK.
9 years experience
I'm a very early adopter of git, use it for pretty much everything and am deeply fond of it's simplicity. Oh I also wrote my thesis on gi...
I'm a very early adopter of git, use it for pretty much everything and am deeply fond of it's simplicity. Oh I also wrote my thesis on git, so I've dabbled around in it's internals :)
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9 years experience
JavaScript has been an interesting part of my career, I've had to work with it over and over again but until recently I've never had the ...
JavaScript has been an interesting part of my career, I've had to work with it over and over again but until recently I've never had the pleasure of working on a real JavaScript application. Until then it has mostly been the sprinkle that make a site pop.
AngularjQueryjQuery UIArcGIS JS API
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7 years experience
I've worked on multiple projects utilizing Python, a language that is so similar to my favorite (ruby) and yet so different.
I've worked on multiple projects utilizing Python, a language that is so similar to my favorite (ruby) and yet so different.
9 years experience
A powerful companion that I've adored and hated in several projects over the years.
A powerful companion that I've adored and hated in several projects over the years.
1 year experience
No experience writing production code as much as I wish for it. I've written a small text editor for the pure joy of it and you can find ...
No experience writing production code as much as I wish for it. I've written a small text editor for the pure joy of it and you can find my name on rust's contributors file however, I've only done a few little documentation PRs ;)
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EMPLOYMENTS
Founder & Director
HOLMES IV Pte. Lt.d
2016-03-01-Present
software consulting services: extend existing software packages that are used by virtually all oil super-majors (C#, Python) develop a n...
software consulting services: extend existing software packages that are used by virtually all oil super-majors (C#, Python) develop a new software solution for oil exploration management which is currently being rolled out at several oil super-majors (Angular, Python, C#) migrate/rewrite flagship product from ArcMap (ArcObjects) to ArcGIS Pro (C#, Python) develop proof of concept Xamarin.Forms iPad App leveraging existing c# product-code base work on the core of a Ruby application which is used by US corps. and gov. to track and verify credentials and certifications (ruby, grape) in-house product development of SaaS solutions (Ruby on Rails, Android App)
Ruby
Python
C#
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Ruby
Python
C#
Ruby on Rails
Angular
ArcPy
ArcObjects
ArcMap
ArcGIS Pro
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Ruby & Ruby on Rails Instructor
Skillcrush Inc.
2015-10-01-Present
lead, teach and continuously improve the Ruby and Ruby on Rails Courses at Skillcrush
lead, teach and continuously improve the Ruby and Ruby on Rails Courses at Skillcrush
Ruby
Ruby on Rails
Sinatra
Ruby
Ruby on Rails
Sinatra
Head of Ruby Development
Propertybase GmbH / Propertybase Inc.
2013-11-01-2016-02-01
oversaw all Ruby projects and developers; split between product development and management
oversaw all Ruby projects and developers; split between product development and management
Ruby
Ruby on Rails
MongoDB
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Ruby
Ruby on Rails
MongoDB
PostgreSQL
Salesforce
Sinatra
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