• Professional skills
  • PHP95%

    OOP, Design Patterns, Dependency Injection, Object Relation Mapping (Doctrine, Propel), Caching (Redis, Memcache), PHPUnit, Symfony2 (also 1.4), Nette MVC, CodeIgniter + MySQL, MongoDB, DynamoDB

  • JavaScript85%

    OOP, ReactJS, Google Closure, VanillaJS, ExpressJS, NodeJS, Facebook FLUX, CoffeeScript, Gulp, Grunt, jQuery, Bower, NPM, Mootools, AngularJS, PhoneGap

  • HTML & CSS70%

    Canvas, SVG, LESS, Stylus, SASS, HTML5

  • Other< 50%

    Continuos Integration, C#, Unity, Obj-C, Swift, AWS, Adobe Photoshop, Chef, Puppet, Ant, MSSQL, Blender, Autodesk Maya

  • Work experience
  • May 2015 - March 2016

    DueDil Ltd.

    PHP Developer in London, United Kingdom

    Dubbed “the Bloomberg of unquoted companies” by the FT, DueDil is the one of largest sources of private company information in Europe. It has a huge database of more than 45 million companies.

    DueDil is a research tool primarily used for B2B lead generation and credit risk management. Since its inception in 2011 it has raised more than $22m from respected investors including Oak Investment Partners, Passion Capital and Notion Capital.

    Technologies used: Strong OOP PHP, Symfony2, Drupal, MySQL, PostgreSQL, ElasticSearch, Python, HTML5, CSS3, Git, Code reviews, Amazon Web Services, Nginx, Vagrant, Ansible

  • February 2015 - April 2015

    Blubolt Ltd.

    PHP Developer in Bath, United Kingdom

    Company built by two incredible guys who share passion for software development. Offices are located in beautiful Bath and it was a pleasure for me to work there. Blucommerce is a framework for platform client's eCommerce websites. System offers a huge amount of built-in features. My main responsibility was to integrate a new payment gateway called Pay with Amazon.

    Technologies used: Strong OOP PHP, MySQL, OOP JS, Mootools, HTML5, CSS3, Git, Code reviews, Amazon Web Services, Nginx, Vagrant, Chef, Apache SOLR

  • September 2014 - January 2015

    Helastel Ltd.

    Software Engineer in Bristol, United Kingdom

    Web application agency which has their own startup - Lucid.

    Project Lucid
    Project similar to SalesForce and JIRA. Management tool for delivering software features with client access - instant feedback. Communication gateway within the company and customers. The foundation was used for another projects due to its complexity.

    Project Plus Or Minus
    Application based on Lucid's foundation. My main focus was a security level of the platform. Permission logic for users within multiple groups. CRUD access to not just table but also to row and each cell. It was a good stretching of my knowledge and I'm proud of the functionality I have developed.

    Technologies used: Strong OOP PHP, CodeIgniter, Laravel, MariaDB, JS, jQuery, HTML5, CSS3, Mercurial, Apache

  • November 2013 - June 2014

    Iodine.com Inc.

    JavaScript Developer startup based in San Francisco, working remotely

    Also a very good experience. Modern technologies, the code had to be clear as much as possible. Project focused on improving people knowledge about medicine. The application was ready for handling a huge amount of requests and worked well on mobile devices. Amazing startup with a future.

    Technologies used: OOP Javascript, Facebook FLUX, NodeJS, ExpressJS, VanillaJS, ReactJS, CoffeeScript, Gulp, TDD, MongoDB, DynamoDB, Continuos Integration CircleCI, HTML5, CSS3, Git, Heroku, PhoneGap

  • April 2012 - September 2013

    Devel.cz Lab s.r.o.

    JavaScript & PHP programmer in Prague, Czech Republic

    The best job I have ever had so far. I have learned so much incredible technologies and practices. Devel.cz Lab will always be close to my heart!

    Project Wikidi.com
    I was working on wikidi.com during my first 5 months. The software compares various attributes of products which helps users with their buying decisions. The project has become successful and it was crucial to focus on scalability and performance of the entire project. It was a first time in my life when I wrote tests for my code.

    Project Flowreader.com
    After I finished the Wikidi project, I have become a full-time JavaScript developer on flowreader.com. We have built the project from scratch and I was in charge of the decision about technology we would use on a frontend because it was a single page application. The decision was Google Closure. The benefits were static analysis of the code (type checking) and compiler which squeeze the application into 40kb. When the application got bigger we added ReactJS in order to improve scalability. Rendering components became much easier to develop or debug. Great times!

    Technologies used: OOP Javascript, NodeJS, VanillaJS, ReactJS, Google Closure, CoffeeScript, Grunt, Gulp, Strong OOP PHP, Nette MVC, ElasticSearch, TDD, Selenium, Doctrine ORM, MySQL, MongoDB, Continuos Integration, Redis, Memcache, XML, HTML5, CSS3, Git, Feature branching, Agile, Vagrant, Chef, Puppet

  • July 2011 - April 2012

    RightClick s.r.o.

    PHP programmer in Prague, Czech Republic

    This was a first job where I have realised that software development involves more things than I thought before and OOP became necessary for doing things right. I have expanded knowledge about application architecture. I was working on an internal application that generated schedules for students at the Faculty of Philosophy at Charles University in Prague.

    Technologies used: OOP PHP, Symfony 1.4, Propel ORM, YAML, MySQL, HTML, JS, CSS, SVN, Nginx, PayPal, Google Checkout

  • January 2011 - June 2011

    ALLIN1 s.r.o.

    PHP programmer in Prague, Czech Republic

    I worked on the discount portal Zapakatel.cz. My main responsibility was building a liability calculator Dobrapojistka.

    Technologies used: PHP, CodeIgniter, Propel ORM, MySQL, HTML, JS, CSS, Bazaar SVN

  • October 2008 - December 2008

    DarkYork s.r.o.

    PHP programmer in Liberec, Czech Republic

    I was working remotely on several microsites, questionnaires and guest lists.

    Technologies used: PHP (own FW), MySQL, HTML, JS, CSS

  • Education
  • September 2010 - July 2011

    Cancelled

    University of Economics - Faculty of Informatics and Statistics in Prague, Czech republic

    Study program focused on leadership and marketing.

  • September 2006 - July 2010

    Graduate

    High School of Applied Cybernetics in Hradec Králové, Czech Republic

    Study program focused on algorythms and OOP programming. Main languages was C# and C++.

  • Interests
  • Programming

    Yes, that's right! I do love programming and I have to say it affects my personal life in many ways. My passion drives me to write a neat code, moreover, I'm studying design patterns and best practices to keep myself on the edge in a huge range of technologies and principles

  • Learning new things

    As previously mentioned – I enjoy studying and reading about a software development in order to make my picture about programming wider. I am trying to understand as much as possible how a designer or a server admin see the application. I believe finding a path between those two worlds is the best way how to achieve an exceptional user experience.

  • Freestyle biking

    Due to an injury in the past, I was no longer able to do a freestyle biking, but I am hoping to get back into it in the future. Sports and adrenaline help me to get the right level of energy I need, in order to be able to manage my personal and professional life. I am trying to keep a healthy work-life balance, however, programming usually wins the battle over!

  • Recommendations
  • Roman Ozana

    PHP Developer at Testomato.com

    Michael is great developer with sence for humor. He knows a lot about JavaScript and modern front-end technologies. It was nice to work with him. I definitely recommend him!

  • Roman Schejbal

    Web Developer at Wikidi a.s.

    Working with Michael is a pure fun, his geeky, nerdy jokes have made me cry for quite a lot of times. From the professional perspective, he is really keen and curious about technology. He has this - I would say feature - which is the fact that his code is usually cleaner than your toilet. It was my pleasure to work with him as you dont meet meet this type of guy very often. He also has a solid background about PHP & Symfony2, general design Patterns (when to use them as well), and even some mobile development I definitely recommend Michael as a Software Developer.

  • Jahid Zaynal

    Online Engineer at Estee Lauder UK

    Michael has real programming talent. He loves beautiful and maintainable code. He is quite passionate about re-usable code and the separaton of logic from design. His passion is in a level that when he doesn't like the way people code around him (i.e. the 'wrong' way), he simply cannot stay there for long! I'd recommend him to the fullest.

  • Contact
  • Address

    Dodson Street

    London SE1 7QL

    United Kingdom

    Mobile

    +44 7935 114793

    Email

    michael@czolko.cz


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