Over 15 years of practice across financial, banking, and enterprise environments. Specialized in Linux system administration, WebLogic platforms, automation (Ansible), containerization, and cloud technologies, holding certifications such as CKA and Google Cloud Associate Cloud Engineer. Delivered implementation, migration, and maintenance projects ensuring high availability, security, and compliance with ITIL procedures.
Linux Administrator L3, Hexaware Technologies
May, 2025 - Oct, 20255 months
Effective L3 support in multi-client environments; development of automation and deployment processes; collaboration with architects to enhance platform capabilities.
Technologies: Linux (RHEL, Ubuntu, Suse), Kubernetes, Ansible, ITIL/Agile.
Senior IT System Administrator, Santander Bank Polska S.A.
Mar, 2024 - Oct, 20247 months
Administration and support for banking systems, databases, messaging platforms, and middleware.
Technologies: Linux (RHEL), IBM WAS, Ansible, GitLab, Jenkins, Grafana, Elasticsearch, Dynatrace, Zabbix, Docker Swarm, OpenShift.
Middleware Consultant, Self-employed
May, 2023 - Mar, 202410 months
Middleware consultancy for Oracle WebLogic environments for DXC Technology.
Technologies: Oracle WebLogic, JBoss, Linux (RHEL), Ansible.
Web Support Administrator, Credit Suisse AG
Dec, 2016 - May, 20236 years 5 months
Technical support for JAP/DAP platforms; migration and implementation projects; operational automation (Bash/Python); 24/7 support for global applications; SSL certificate management.
Technologies: Linux, Oracle WebLogic, SiteMinder, Apache, Tomcat, Bash/Python, Splunk, Grafana, SiteScope, ServiceNow.
Advisory IT Specialist, IBM GSDC
Oct, 2014 - Nov, 20162 years 1 month
Global support and development of BigFix/IBM Endpoint Manager; implementation projects for international clients; creation and testing of fixlets across multiple Linux distributions.
Technologies: Linux (RHEL, Suse, Debian), IBM/HCL BigFix, Bash, Python.
Web Support Administrator, Credit Suisse AG
Sep, 2013 - Sep, 20141 year
Support and development of web and server platforms; operational automation; production support for the EMEA region.
Technologies: Linux, Solaris, WebLogic, Apache, iPlanet, IIS, SiteMinder, SiteScope, Bash/Python.
Linux Systems Administrator, Euro Bank S.A.
Oct, 2008 - Aug, 20134 years 10 months
Maintenance and optimization of Linux/VMWare infrastructure; administration of WebLogic clusters across two data centers; development of monitoring and automation; improvements in system security and performance.
Technologies: Linux (RHEL), Unix (AIX), WebLogic, Bash/Python, VMWare, Nagios, Bind, Apache.
Application Administrator, Euro Bank S.A.
Sep, 2007 - Oct, 20081 year 1 month
Ensuring stability of production banking systems; management of operational and deployment processes; resolution of critical incidents.
Technologies: Linux (RHEL, AIX), WebLogic, Bash/Python, VMWare, Oracle SQL, Nagios.
IT and Network Administrator, Ośrodek Informatyki Dolnośląskiego Urzędu Wojewódzkiego
Oct, 2006 - Aug, 200710 months
Development and administration of network infrastructure; maintenance of mail and proxy services; user support in a multi-platform environment.
Technologies: Linux (Debian), Postfix, Squid, Bash.
Red Hat
Debian
Ubuntu
AIX
Bash
Python
Oracle WebLogic
JBoss
Apache
nginx
Ansible
Terraform
Jenkins
GitLab CI/CD
Kubernetes
Docker
Openshift
Google Cloud Platform (GCP)
Grafana
SiteScope
Splunk
Zabbix
Nagios
Computer Science and Econometrics, Engineer, Wyższa Szkoła Zarządzania i Finansów
Jan, 2002 - Jan, 2006
Certified Kubernetes Administrator, The Linux Foundation
Issued on: Oct 04, 2025
Google Cloud Certified Associate Cloud Engineer, Google Cloud
Issued on: Nov 01, 2023
IBM AN30G - Power Systems for AIX - Virtualization I, Arrow Global Training Alliance
Issued on: Jul 10, 2015
SAS 9.2 Architecture, SAS Institute
Issued on: Dec 01, 2010
IBM AW18 – AIX Jumpstart for UNIX Professionals, IBM
Issued on: Nov 27, 2009
Oracle BEA Weblogic Server 9/10: System Administration, Infovide-Matrix
Issued on: Sep 18, 2009
Red Hat Certified Engineer (RHCE) – RH300, Altkom
Issued on: Jun 05, 2009
RH253 – Red Hat Linux Networking and Security Administration, Altkom
Issued on: Nov 07, 2008
RH133 – Red Hat Enterprise Linux System Administration (RHCT), Altkom
Issued on: Aug 22, 2008
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