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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
  • 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).
  • DevOps Engineer
    2018 - PRESENT
    The Boston Consulting Group
    • Set up a continuous testing pipeline with Jenkins.
    Technologies: Jenkins, JIRA, GitLab, Selenium, Java, Python, JavaScript, HTML5
  • 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
  • DevOps Engineer
    2018 - 2018
    • Developed a scalable and compartmentalized AWS environment for Rancher deployment.
    • Configured AWS Secret Manager to store sensitive data necessary for deployments.
    • Modularized Terraform code so it can be reused for different customers.
    • Implemented resource tagging which allowed for one-glance customer billing as opposed to previous usage-based estimation.
    • Created deployment script allowing to roll out an entire environment in the desired region with one command.
    • Ensured the use of best practices for security, collaboration, scalability, cost-effectiveness, and high availability.
    Technologies: Terraform, Docker, Rancher, AWS
  • 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 detects stuff in the C++ driver and conducts an 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
  • Tools
    Vagrant, Docker Swarm, Docker Compose, Zsh, Git, GitHub, CMake, Chruby, Bitbucket, Vim Text Editor, KVM/Qemu, Toggl, LaTeX, cURL Command Line Tool, Subversion (SVN), GDB, AutoTools, Systemd, ELK (Elastic Stack), BusyBox, Bundler, Travis CI, CasperJS, Virtualenv, Ansible, wxPython, Tmux, Wireshark, Expect, NPM, Jenkins, Ansible Tower, Terraform, Docker Hub, Nginx, Make, Makefile, JIRA, JIRA Administration, GitLab, GitLab CI/CD, CircleCI
  • Platforms
    Linux, Docker, Debian, Embedded Linux, Raspbian, Raspberry Pi, Kubernetes, Amazon Web Services (AWS)
  • Storage
    JSON, Docker Cloud, SQLite, Google Cloud
  • Other
    GNU, Homebrew, Unix Shell Scripting, TCP/IP, PIP, SSH, UPnP, XMPP, RSync, NFS, ZFS, Consul, Doxygen, LLVM, DHCP, Embedded Systems, HAProxy, Screen Scraping, Writing, Architecture
  • Languages
    C++, C, Python, XML/XSLT, Bash, Bourne Shell, Markdown, Ruby, YAML, CoffeeScript, Perl, XPath, AWK, Sed
  • Libraries/APIs
    POSIX, Node.js, jQuery, Dropbox API, Libxml2, PyGTK, REST API, PhantomJS
  • Paradigms
    Continuous Integration (CI), Continuous Delivery (CD), REST, Agile Software Development, Test-driven Development (TDD), Unit Testing
  • Frameworks
    Sinatra, AngularJS, Bootstrap, Boost, GoogleTest, Electron.js, Flask
  • Master's degree in Information technology
    2000 - 2006
    Gdańsk University of Technology - Gdańsk, Poland
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