Praha, Dejvice (CZ),

About

I have considerable experience with software development, network administration and user support. I believe that I am patient and understanding, with a sense of detail. Currently studying at FIT, CTU in Prague, study branch Computer Security and Information Technology.

Experience

September 2011 - January 2015
Linux network administrator

Integration of Ubuntu in a Windows-only network of ~25 computers in a classroom.

  • Active Directory integration into Ubuntu using Samba, automatically mounted network shares with help of Kerberos
  • Automatic updates, backups, optimizations for 16Mbit/s internet connection (APT proxy)
  • Puppet used for centralised management
  • Talked about it at LinuxDays 2013

grouptime GmbH

February 2015 - August 2018
Teamwire – Windows Phone head developer, backend developer

Engineered the WinRT port of Teamwire, a business instant messaging solution.

  • Port of iOS and Android version to WinRT (Windows Phone 8 and Windows 10 Mobile)
  • Integration of OpenSSL for encryption features and SQLCipher for encrypted internal storage
  • Backend: Implemented APNS2 message sending and several other features
October 2013 - Present
Network administrator

Maintaining computer network for 450 people and >600 devices. Collaborating with Silicon Hill.

  • User support, including online
  • Administering servers running Gentoo/Debian/Ubuntu
  • Management of network comprised of Cisco, 3Com, Juniper, Ruckus devices
  • 802.1X, RADIUS deployment with existing user database in PostgreSQL
  • Converting network hosts and services to containers (LXC) and VMs
  • Organization and performing of fiber optics core network construction in 2018
  • Organization and performing of Cisco->Juniper switch in 2018

GoodVision s.r.o.

July 2019 - Present
Systems Administrator

System and developer operations of our Prague office, making sure that systems and research run smoothly and securely.

  • Managing AWS services used by the company
  • Deployed identity management using multi-master FreeIPA
  • Ubuntu and CentOS server management using Ansible

Education

CTU in Prague, Faculty of Electrical Engineering

2013 - 2017
Bachelor
Information Technology - Software Systems

CTU in Prague, Faculty of Information Technology

2017 - Present
Bachelor
Security and Information Technology

Volunteer

CTU Student Union

February 2019 - February 2021
Technical Manager

Coordinating technical and network efforts across CTU SU clubs. Maintaining healthy relationship with CTU and partners.

Skills

.NET Windows Development
Intermediate
  • Windows Forms
  • Windows Runtime
  • C#, C++
  • WPF, XAML
Linux development
Lower intermediate
  • C, C++
  • Python
Linux and Networking
Varying
  • Kernel configuration and patching
  • Bash scripting
  • Debian/Gentoo configuration

Languages

Czech
Native speaker
English
Fluent speaker
Slovak
Close-to-native proficiency
French
Basic understanding

Interests

Mobile devices
  • Windows Mobile (6 -> 7 -> 8 -> 10)
  • Android 8
Networking and Information Security
  • IPv6
  • Mobile and cellular networks
  • Network traffic analysis
Music
  • Playing piano