11/16/2024 updated

**** ******** ****
100 % available

Senior IT Professional: System Administrator and Security Expert

Limassol, Cyprus
United Arab Emirates
Master of Science in Engineering
Limassol, Cyprus
United Arab Emirates
Master of Science in Engineering

Profile attachments

mc-current.pdf

ProxmoxApache HTTP ServerBusiness LogicAutomationBash ShellUbuntu (Operating System)CentOSComputer SecurityDatabasesDebian LinuxPerl (Programming Language)Tivoli Management FrameworkIT ManagementPython (Programming Language)PostgreSQLLinux AdministrationProject ManagementMySQLNGINXOpenVPNQuick EMUlator (QEMU)Red Hat Enterprise LinuxAnsibleVirtualizationZabbixScriptingTransport Layer SecurityMacrosLxcPuppetSafety PrinciplesDatabase AdministrationDocker
Linux Administration
Master level skills in Linux administration, including RedHat/CentOS, Debian/Ubuntu, patching, scripting, security, virtualization, monitoring, backup/recovery, nginx, and apache.

Security
Master level expertise in IT security, including WireGuard, OpenVPN, SSL, Zabbix, and Netcool.

Scripting
Master level proficiency in scripting languages such as bash, python, and perl.

Automation
Advanced skills in automation, including scripting, macros, ansible, and puppet.

Virtualization
Advanced knowledge of virtualization technologies, including Proxmox, Qemu, Docker, Portainer, and LXC.

IT Management
Advanced capabilities in IT management, covering multiple IT areas, strategy building, business logic supporting solutions, current technology evaluation, automation, technical project development, and cyber security systems.

Databases
Advanced skills in database management, particularly with MySQL and PostgreSQL.
 

Experience

Professional experience10+ years
Freelancer since2017

Languages

GermanGoodEnglishFluentPolishNative speaker

Project history

Unix Applications Administrator

Baaderbank
Developed a set of integrated tools to improve most common BAU tasks speed, efficiency and flawlessness. Managed Netcool monitoring, Jira, incident remediation, ITIL Changes, Puppet+GIT configuration management, Control-M workflow management, administration of several RedHat servers.

Chief Architect

Srootech Ltd
Developed several automated infrastructure projects using Proxmox, PostgREST, Vue.js, Docker, Synology, Mikrotik. Implemented Mikrotik kill-switched VPN gateways, Proxmox automation, encrypted RAID arrays, LXC containers, Nextcloud hosting, advanced reverse proxying and iptables firewalling.

CTO

Gnuhost
Developed for projects related with Forex, Blockchain and health industry. Created automated infrastructure of VPN gateways, Mikrotik VPN APs, Ansible and Nextcloud nodes. Supervised / co-authored scool med and home-care.app, euronodes, getnas projects.

Unix / Linux Focal Point @ Samlink account

IBM GSDC Poland
Managed quarter of thousand of servers running AIX, VIO RedHat and SUSE Linux, co-lead pilotage implementation of Ansible automation, created semi-automated tool for managing vulnerabilities database records, developed various procedures which covered multiple areas of IT.

System Administrator

VaW GmbH
Prepared documentation resultet in 60% decline in tickets flow, managed nearly 400 servers, mirgrations from Citrix to Nuganix/VMware vSphere, code adjustments to osTicket, evaluated and implemented areas of improvements and automation.

Support Engineer

Lennerts und Partner GmbH
World leader in counselling and development of complete solutions for bending plants / rebar shops. Developed dozens of automated interactive reporting tools (Excel + SQL), supported over 100 in DACH and more than 200 worldwide construction industry projects.

Production Preparation Specialist

ThyssenKrupp Energostal S.A.
Co-lead the creation of new department and several rebar shops.

Assistant of the Board, Head of IT department, IT manager

BetStal Sp. z o.o.
Developed a reinforcement management system, which allowed constant production growth (300 tons/month - 3500 tons/month).

Contact form

Log in to get in touch

You need to be logged in to use the contact form.

Sign upLog in