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Piotr Gaczkowski

Piotr Gaczkowski

Gdańsk, Poland
Member since July 22, 2016
Piotr is the type of guy who likes to make his skills useful whether it is through coding or organizing cultural events; he is satisfied when he sees his work is appreciated by others. His ideal jobs include those that make a difference in ordinary people's lives by changing them for the better.
Piotr is now available for hire
  • IOD
    Markdown, Google Drive, Toggl
  • DLabs
    Docker, Ansible
  • Strypes
    Python, Click, Ruby, Sinatra
  • Python, 8 years
  • C++, 8 years
  • Continuous Integration (CI), 3 years
  • Architecture, 2 years
  • Ansible, 2 years
  • Docker, 2 years
  • Terraform, 1 year
  • Kubernetes, 1 year
Gdańsk, Poland
Preferred Environment
(Neo)Vim, Tmux, Zsh, Linux
The most amazing...
...automation I've coded cut down the setup time from a few hours to exactly two minutes (including downloading).
  • Technical Writer
    2016 - PRESENT
    • Wrote technical articles for various blogs dealing with DevOps topics (Docker, Kubernetes, Ansible, Terraform, Jenkins, and more).
    • Edited other technical writers' articles.
    • Authored technical articles for various blogs dealing with cloud and architectural topics (mainly AWS).
    • Expanded an eBook about Kubernetes for a customer.
    Technologies: Markdown, Google Drive, Toggl
  • DevOps Enforcement Agent
    2016 - PRESENT
    • Reworked the ad serving system to properly use Docker containers. Orchestrated the Docker Swarm for easy scaling. Prepared deployment description using Ansible.
    • Helped with the deployment of a redundant cluster serving application in Flask utilizing MongoDB. Prepared the migration for the database. Established a Vagrant environment for future development and maintenance.
    • Introduced Jenkins CI in projects using manual development and tests.
    • Automated new deployments and helped with migration of existing ones to employ infrastructure-as-code with Ansible and Vagrant.
    • Created and implemented architecture for ad serving system using Amazon Web Services, Terraform, and Ansible.
    Technologies: Docker, Ansible
  • Back-end Developer | DevOps Engineer
    2017 - 2018
    • Improved the internal CLI tool with a better UX.
    • Automated the testing of the email templating system.
    • Implemented bulk editing features to the internal CLI tool to allow for easier scaling.
    Technologies: Python, Click, Ruby, Sinatra
  • Senior C++ R&D Engineer
    2014 - 2017
    ADVA Optical Networking
    • Developed and maintained a system application (C++) to monitor the performance of networking hardware.
    • Improved the build system and continuous integration as well as introduced good practices regarding code organization (CMake).
    • Prepared a reproducible run-time environment based on Vagrant.
    • Provided tools to automate day-to-day work (Ruby, Sinatra, AngularJS, and Python).
    Technologies: C++, CMake, Ruby, JavaScript, Vagrant
  • Graphics Software Engineer
    2011 - 2014
    Intel Technology Poland
    • Introduced a memory leaks monitor and integrated it with continuous integration tests. It detect stuff in the C++ driver, and conducts analysis and presentation in Python.
    • Helped reduce the memory footprint in the OpenGL driver enabling such titles as Minecraft and Rage to become playable.
    • Maintained OpenGL graphics driver (C++) as part of a larger team.
    Technologies: C++, Python, OpenGL
  • Junior C++ Developer
    2007 - 2011
    Wolters Kluwer
    • Introduced and implemented the concept of continuous integration as well as automated testing within the company.
    • Developed and maintained the HTTP-based XML front-end to a proprietary data-base.
    • Built and maintained XSLT style sheets for content presentation in a GUI application.
    • Created inter-operable web services in C++, C#, and Java using SOAP and XML.
    Technologies: C++, XSLT, SOAP
  • Linuxbrew (Development)

    I worked as a part of the Linuxbrew package management team—maintaining both the core Homebrew version on Linux as well as providing formulas for both Linuxbrew and the upstream Homebrew.

  • ohMediaPlayer (Development)

    An OpenHome software audio player. I inherited it from the original authors who abandoned it.

  • My Publications (Other amazing things)

    A list of publications that I have helped create while working for IOD and on my own.

  • Command Line Tools for Developers (Publication)
    In this article, Toptal Freelance Software Engineer Piotr Gaczkowski explains how to make the most out of command line tools and lists some of the best tools out there.
  • Tools
    Vagrant, LaTeX, Toggl, KVM/Qemu, Vim Text Editor, BitBucket, Chruby, CMake, GitHub, Git, Zsh, Docker Compose, Docker Swarm, Subversion (SVN), AutoTools, Systemd, ELK (Elastic Stack), BusyBox, Bundler, Travis CI, CasperJS, Virtualenv, Ansible, wxPython, Tmux, Wireshark, Expect, NPM, GDB, cURL Command Line Tool, Makefile, Jenkins, Make, Nginx, Docker Hub, Terraform, Ansible Tower
  • Platforms
    Linux, Embedded Linux, Debian, Docker, Amazon Web Services (AWS), Kubernetes, Raspbian, Raspberry Pi
  • Storage
    JSON, Docker Cloud, SQLite
  • Other
    GNU, SSH, PIP, TCP/IP, Homebrew, Unix Shell Scripting, Writing, Architecture, Screen Scraping, HAProxy, ZFS, NFS, RSync, XMPP, UPnP, DHCP, Embedded Systems, LLVM, Doxygen, Consul
  • Languages
    Python, Bourne Shell, Bash, XML/XSLT, C, Markdown, C++, CoffeeScript, YAML, Sed, AWK, XPath, Perl, Ruby
  • Libraries/APIs
    POSIX, Node.js, PyGTK, PhantomJS, Dropbox API, Libxml2, REST API, jQuery
  • Paradigms
    Continuous Integration (CI), Continuous Delivery (CD), Agile Software Development, REST, Unit Testing, Test-driven Development (TDD)
  • Frameworks
    GoogleTest, Sinatra, AngularJS, Boost, Bootstrap, Electron.js, Flask
  • Master's degree in Information technology
    2000 - 2006
    Gdańsk University of Technology - Gdańsk, Poland
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