Personal information

Name: Krzysztof Kotlarek

Phone: +61 0497083841

City: Sydney/Australia

E-mail: kotlarek.krzysztof@gmail.com

Skype: kotlarek.krzysztof

Profile

I am a motivated and passionate Ruby on Rails developer, freelancer and entrepreneur currently living and working in Sydney, Australia.

I can help you to build a prototype of your next project, get your startup off the ground, or join your team and help you move forward with the speed of light.

Education

M.Sc. (Eng) Wrocław University of technology

2005 - 2010

Teleinformatics (with speciality in Teleinformatic Systems Planning)

Thesis - Security and performance analysis of selected web frameworks

Work Experience

Jn Solutions - Team leader and Senior Ruby on Rails developer

01.2014 - now

Jn Solutions - Senior Ruby on Rails developer

04.2013 - 12.2013

Jn Solutions - Ruby on Rails developer

01.2013 - 04.2013

Started as a single developer on product and grew with the company to the team leader. Developed and maintained B2B project built upon government Employment Support Service system. Demonstrated strong communication and issue management skills. Met deadlines while handing highly confidential data. As a right hand of CTO I helped maintain the deployment, build and systems configuration infrastructure. Improved product performance by built caching system based on sidekiq and redis.

Tutoria GmbH - developer

09.2011 - 12.2012

Evaluated programming code for efficiency, debugging and quality assurance of platform for digital education (tutoria.de) using technologies like Ruby on Rails, PostgreSQL, Javascript. Practiced Test-Driven Development with RSpec. Responsible for the integration of a Content Management System into the existing platform. Developed a complete redesign of client's dashboard and built premium service of Tutoria.

Recommendations
"Krzysztof is a great developer who is able to deliver web-apps in time and quality. Besides his technical skills and professional attitude, he is a great guy to work with."
Thomas Zeller, Director Product, Tutoria GmbH
"Krzysztof is a prolific Rails developer, able to provide complete solutions quickly and without sacrificing quality. He is also a very outgoing person, easy to communicate with and definitely a team player. I think he will be a linchpin of whatever project you find yourself working on."
Jarosław Rzeszótko, Software Developer, Tutoria GmbH

Useo - co-founder

01.2009 - 12.2011

I was one of the co-founders of a Ruby on Rails startup in Poland. Worked on the business direction I was also responsible for development of tailor-made Rails applications. I gained extensive experience implementing blog themes, Refinery CMS sites, e-commerce sites based on Spree platform, and custom-built sites from scratch. I managed to develop a broad projects portfolio including: euro-finanse, johnhanly.com, promowear.ie, irishhurleys.ie, trade.johnhanly.com, markam.com.pl, nowech.pl, masaze.koszalin.pl, stempel-druk.pl, grupaamb.pl. Configured and maintained multiple Linux-based servers (RVM, Passenger with REE, Apache, Postfix). One of my most successful project was a platform connecting commercial banks with credit offices based all around Poland.

Recommendations
"I have worked with Krzysztof on a number of projects, both small and large. I was impressed with his quality of work as well as the ability to keep strict deadlines. Krzysztof and his team are some of the best programmers I have had pleasure to work with."
Radek Kotlarek | SEO Expert, Technical Director, IEG Marketing

Freelance

Cyferki - developer

01.2007 - 12.2012

cyferki.megiteam.pl is an e-commerce platform based on Spree. Developed an extension for wholesale clients. One of the most progressive functions included currency converter based on daily currency rates.

Recommendations
"Krzysztof carried out the tasks assigned to him with self initiative and great care. We were very pleased with the results."
Krzysztof Maszkowski, Owner of Cyferki

p-l.pl - founder

01.2005 - now

p-l.pl was my first Ruby on Rails project. It has been designed as a community platform for photographers. I developed it from scratch and managed to build a large base of loyal users. First version of the project was written in PHP and moved in 2007 to Ruby on Rails.

Skills

Ruby Ruby on Rails XHTML CSS Bootstrap Javascript jQuery Angular CoffeeScript SQL Redis Sidekiq Integration with OpenAM Integration with OpenStack Integration with Facebook Rspec Git Test driven development Capistrano Nginx Unicorn

Languages

  • Polish: Native
  • English: Fluent
  • German: Intermediate

Courses and Certificates

Conferences

Presentations

Open Source

Author or Co-author

Bugfixes and improvements