Marko Oršolić
System administrator in a 6-person team
Experience
System administrator in a 6-person team
FITS
- System administration of FreeBSD 11, 12, and 13.1 in a secure software cloud solution
- Administration of proxy servers for FITS and its customers, including banks and state banks
- Administration of secure internet solutions
- Administration of secure mail solutions and mail gateways
- Administration of Apache 2.4 web servers
- Planning and maintenance of servers and network components in FNT Command
- Incident, change, and ticket handling, especially troubleshooting network issues using Splunk and ARS
- Troubleshooting and log file analysis using Splunk Enterprise
- Monitoring with Nagios
- Ordering, provisioning, and deployment of certificates on Apache and Nginx web servers and load balancers
- Hardware: HP ProLiant DL380 Gen 9 and 10, Cisco Catalyst
- Software: FreeBSD 11, 12, and 13.2, FNT Command, shell scripts, MySQL databases, ServiceNow, ARS, Splunk Enterprise 8.15
System administrator in a 10-person team for the 2024 European and local elections
Komm One
- Participation in and moderation of weekly meetings
- Planning and scheduling performance and load tests using Apache JMeter for the Vote IT ballot software
- Discussing technical changes to the Wahlmanager platform to improve overall system performance
- Implementation and ordering of an Apache reverse proxy server as a load balancer
- Creating a Visio chart to illustrate the overall architecture of the Wahlmanager
- Requesting changes from the manufacturer Vote IT
- Planning the deployment of new software releases
- Quality assurance
- Administration of Apache web servers and Tomcat applications
- Hardware: HP ProLiant DL380 Gen 10, Citrix NetScaler load balancer
- Software: SUSE Linux Enterprise Server, Ansible, shell scripts, Oracle 19c databases, Nagios monitoring software, Tomcat, Apache web server, Apache reverse proxy server
System administrator in a 6-person team
FITS
- System administration of FreeBSD 11, 12, and 13.1 in a secure software cloud solution
- Planning and technical execution of a data center relocation within Nuremberg
- Relocation of about 30 servers from one data center to another in Nuremberg as part of the RZ Move project
- Administration of proxy servers for FITS and its customers, including banks and state banks
- Administration of secure internet solutions
- Administration of secure mail solutions and mail gateways
- Administration of a DDoS solution in collaboration with Deutsche Telekom
- Administration of Apache 2.4 web servers
- Planning and maintenance of servers and network components in FNT Command
- Incident, change, and ticket handling, especially troubleshooting network issues using Splunk and ARS
- Troubleshooting and log file analysis using Splunk Enterprise
- Monitoring with Nagios
- Ordering, provisioning, and deployment of certificates on Apache and Nginx web servers and load balancers
- Hardware: HP ProLiant DL380 Gen 9 and 10, Cisco Catalyst
- Software: FreeBSD 11, 12, and 13.1, FNT Command, shell scripts, MySQL databases, ServiceNow, ARS, Splunk Enterprise 8.15, DDoS
System administrator in a 12-person team
Amadeus Data Processing GmbH
- System administration of RHEL 8.4
- Managing Ansible playbooks to automate installations
- Installing RHEL 8.5 servers for Oracle 19c disaster recovery
- Administration of applications for Amadeus
- Incident, change, and ticket handling
- Patching RHEL 8 servers
- Administration of Veritas Cluster Servers and Veritas File System
- Administration of Oracle Data Guard
- Hardware: HP ProLiant DL380 Gen 10
- Software: RHEL 8.4, Veritas InfoScale 7.3, shell scripts, Ansible, Oracle 18c, Oracle 19c, Oracle Data Guard
Application administrator in an 8-person team
Daimler AG
- Application administration of a document management system based on Tomcat/Apache containers
- Handling Unix shell scripts
- Administration of applications for Daimler/Mercedes-Benz AG
- Incident, change, and ticket handling
- Hardware: Oracle T7 server
- Software: Solaris 11.4, shell scripts, LDOMs, Tomcat, Oracle SQL
Application administrator in a 4-man team
Bank für Sozialwirtschaft
- Application administration of a financial application based on Tomcat/Apache
- Handling Unix/Linux shell scripts
- Administration of NetBackup 8.0 and 8.2
- Incident, change and ticket processing
- Hardware: Oracle Server T4, T7, IBM P-Series S922
- Software: Solaris 11.3, AIX 5.1, shell scripts, Solaris Cluster 4.2, Tomcat, NetBackup 8.2
Oracle Solaris administrator in a 30-man team
FITS
- Solaris administration
- Provisioning Oracle Solaris servers for Dekabank
- Handling Solaris shell scripts
- Administration of Solaris 10 and 11.3, Sun Cluster 4.2, Veritas Cluster Server 6.0, Solaris LDOMs and Solaris zones
- Incident, change and ticket processing
- Participation in moving Solaris servers from Stuttgart to Fellbach for Landesbank Baden-Württemberg
- Hardware: Oracle Server M3000, M4000, M5000, T5-2
- Software: Solaris 10, 11.3 and 11.4, shell scripts, Solaris Cluster 4.2, Veritas Cluster Server 6, Veritas File System 6.0, Veritas Volume Manager 6.0
Oracle Solaris administrator in a 3-man team
Commerzbank
- Handling service requests from the group mailbox
- Provisioning Oracle Solaris servers for Oracle database servers
- Handling Solaris shell scripts
- Administration of Solaris 10 and 11.2
- Incident, change and ticket processing
- Participation in moving Solaris servers from Stuttgart to Fellbach
- Hardware: Oracle Server X5-8
- Software: Solaris 11.3, OpenStack Cloud Solaris, shell scripts, IBM Tivoli Monitoring, HPSM, CoCa, Coria
Application administrator in a 6-man team
Techem AG
- Dispatching requests from the group mailbox
- Working with Assyst tickets according to ITIL guidelines
- Handling Linux shell scripts
- Job control and scheduling with Easy Schedule 3.1 and Control-M
- Starting and stopping applications
- Analyzing incidents, troubleshooting, log file analysis, 2nd-level support
- Job monitoring
- Escalation to production managers
- Controlling SAP print jobs
- Controlling a CD burning robot
- Hardware: IBM P-Series
- Software: Red Hat Enterprise Linux 7, Windows Server 2013, VMware ESX, Oracle SQL, J2EE, shell scripts, Control-M, Nimsoft
Solaris administrator in a 4-man team
Berliner Sparkasse
- Dispatching requests from the group mailbox
- Working with SR Plus tickets according to ITIL guidelines
- Handling Solaris shell scripts
- Connecting savings bank systems to FI authorization management
- Starting and stopping applications
- Analyzing incidents, troubleshooting, log file analysis, 2nd-level support
- Monitoring production and test environments
- Checking backup jobs in Legato NetWorker
- Handling disks and disk groups in Veritas Volume Manager
- Operating Solaris zones in Veritas Cluster Server
- Hardware: Sun M5000, T5120, M4000, T3
- Software: Oracle Solaris 10 and 11.3/11.4, Solaris zones, ZFS, Veritas Cluster Server, shell scripts, Tivoli Storage Manager
Application administrator in a 6-person team
Techem AG
- Dispatching requests from the group mailbox
- Working with Assyst tickets according to ITIL guidelines
- Handling Linux shell scripts
- Job control and job scheduling with Easy Schedule 3.1 and Control-M
- Starting and stopping applications
- Analyzing failures, troubleshooting, log file analysis, second-level support
- Monitoring jobs
- Escalation to production managers
- Managing SAP print jobs
- Managing a CD burning robot
- Hardware: IBM P-Series
- Software: Red Hat Enterprise Linux 7, Windows Server 2013, VMware ESX, Oracle SQL, J2EE, shell scripts, Control-M, Nimsoft
Storage engineer in a 3-person team
Huawei
- Setting up, installing, and troubleshooting Huawei midrange series storage
- Hardware: Huawei Storage V3 series
- Software: Huawei OceanStor Storage Manager
Application administrator in a 30-person team
T-Systems
- Dispatching service requests from the group mailbox
- Working with HPSM tickets according to ITIL guidelines
- Manually administering CAS J2EE applications
- Handling Solaris shell scripts
- Starting and stopping applications and integrating them into the monitoring environment
- Analyzing failures, troubleshooting, log file analysis, second-level support
- Setting up users in the Active Directory server
- Managing groups and permissions on Microsoft RDP servers
- Hardware: HP blade servers
- Software: Red Hat Linux 12, Windows Server 2013, VMware ESX, Oracle SQL, Compax AAX, CAS, truck toll software components, J2EE, shell scripts, UC4/Automic
Service operations analyst for incidents and service requests in a 12-person team
Deutsche Bank
- Dispatching service requests from the group mailbox
- Working with DB Symphony tickets according to ITIL guidelines
- Manually administering the Coryx Private Port application
- Handling Solaris shell scripts and SQL database access
- Hardware: Oracle Server M4000
- Software: Solaris 10, Oracle SQL, Coryx Private Port (formerly Reuters Portfolio Management), shell scripts
Oracle onsite engineer in a 7-person team
Finanz Informatik GmbH
- Operating a high-availability solution based on Symantec Veritas Foundation Suite 6.0 and Solaris zones technology
- Installing Solaris 10 servers using Jumpstart
- Assisting with the live upgrade of a pure Oracle Solaris 10 server environment of 160 servers
- Incident management, troubleshooting and change management
- Coordinating calls
- Independently developing technically detailed action plans for problem resolution in agreement with the customer and continuously verifying the actions
- Coordinating problem resolution
- On-site support for the solution center and customer account teams during technical escalations
- Collaborating with internal national and international escalation teams on escalated issues (3rd/4th level)
- Troubleshooting, analysis and diagnosis of issues
- Working with customer account teams
- Collaborating with REOS (Remote Enterprise Organisation Services)
- Ensuring maximum availability and operation of customer systems through the use of proactive information
- Providing service for high-end Oracle/Sun systems in the data center
- Capturing the current configuration and continuously monitoring patches, FINs and FCOs using Oracle tools to assess system status
- Determining the need for action regarding patches, FINs and FCOs
- On-site patch management and bug fixes
- Hardware maintenance including FIN and FCO management and control
- Consulting services to increase system availability
- Supporting asset management for the Sun environment
- Installation support in compliance with the Sun EIS standard
- Ensuring the Sun quality standard
- Supporting on-site spare parts
- Supporting system administration in procuring and transferring Sun know-how
- Assisting with the introduction of Oracle tools (OracleSolve, OSC)
- Collaborating with and supporting application vendors on Oracle system administration and management
- Implementing mechanisms for system availability
- Supporting and advising on the operation of Oracle systems in the data center regarding patch and change management
- Supporting system administration in procuring and transferring Oracle know-how
- Documenting and ensuring transparency of the Oracle system environment
- Documenting and providing transparency for customer- and system-specific additions and peculiarities
- Maintaining Oracle servers and their components in FNT Command
- Hardware: Oracle Servers M3000 and M5000, Sun Fire 15k
- Software: Solaris 10, Veritas HA Foundation Suite 6.0, Veritas Volume Manager 6, Veritas Cluster Server 6.0, Lotus Notes, FNT Command C6000
Application Manager in a 3-person team
First Data
- Monitoring, operating and troubleshooting a Unix server environment of 300 servers
- Working according to ITIL
- Incident management
- Change management
- Deployments and releases of Telecash applications in collaboration with the development teams
- Hardware: Oracle Sun Enterprise 420R server, HP BladeCenter
- Software: AIX 6.1, Solaris 8 and 10, openSUSE 10.2, Apache Tomcat Web Server 7.0.0, Xymon Hobbit 4.3.4, Ingenico Download Server 4.3
Application Manager for Huawei ngBSS in a 10-person team
Atos Origin
- 24/7 operations including on-call support for E-Plus
- Monitoring and ensuring stable operation of production applications critical to business processes and SLAs
- Ensuring and monitoring live applications
- Coordinating all activities related to availability, recoverability, performance and capacity of the applications
- 2nd and 3rd level support
- Initiating necessary recovery, restart and resume procedures
- 24/7 on-call support for the managed applications
- Continuous service improvement
- Performing routine system tasks based on Product Execution Plans (PEP)
- Configuring the NGBSS and Mediation applications for the future E-Plus system landscape based on the Huawei platform
- Application management
- Incident management and problem management
- Monitoring error root cause analysis
- Testing NGBSS, Mediation and partner billing (OAT, UAT, BAT)
- Delivering monitoring reports to management
- Executing batch jobs
- Communicating with 1st level support and 3rd level support (Huawei/E-Plus)
- Working with USD (incidents, problems, defects)
- Error analysis and documentation together with the development team
- Hardware: IBM P-Series servers, IBM DS8700 storage
- Software: AIX 7.1, Oracle 10 and 11, Apache Tomcat Web Server 2.0, IBM DS8700, Huawei NGBSS, Icare, CRM, ETL, BICP, Mediation, IBM HACMP 7.1 (High Availability Cluster Multi-Processing)
Participant
E-Plus
- Attended multiple in-house workshops and training sessions by Huawei on Huawei NGBSS, Huawei Mediation, Huawei BICP and Huawei PRM
System administrator/operator in a 6-person team
Commerzbank
- Monitoring, operating and troubleshooting about 300 servers in Commerzbank's test environment for the integration of Dresdner Bank customer data into the new Commerzbank environment
- Monitoring jobs on test systems
- Hardware: Sun M8000, IBM P-Series
- Software: IBM ITM Monitoring 6.2, HP Service Center 2, COCA, ELCH, Sun Solaris 10, AIX 6.1, Red Hat Linux 6, ITIL, incident management via HP Service Center
Participant
EADS Defence
- Attended a four-day training on NetAct for Tetra in Ulm
- Attended a three-day training on storage virtualization with LSI in Berlin
Sun Solaris System Administrator in a team of 10
T-Systems
- Setup and operation of Sun Solaris servers
- Installation of servers using Jumpstart server technology
- Planning support for preparing the installation of new servers and applications for Deutsche Telekom
- Migration of Sun servers and storage to newer hardware from the same manufacturer
- 2nd-level support and troubleshooting
- Handling of incidents
- Handling of changes and tasks
- Creation of ZFS snapshots
- Creation of Solaris containers
- Creation of Solaris zones
- Operation of Sun Cluster 3.0 to 3.2
- Operation of Veritas Cluster Server 5.0
- Hardware: Sun Fire 480R, 490R, 15k, 25k, M4000, M5000, M8000, M9000, iSCSI, NAS filers, SAN storage
- Software: Veritas Cluster Server 5.0, VxVM 4.0-5.0, VxFS 4.0-5.0, Peregrine Service Center, Asset Center, ICIT, Datawarehouse, Business Intelligence, UC4, ZFS, Solaris Zones
Oracle Solaris System Administrator in a team of 30
EADS Defence & Security
- Setup of two high-availability data centers based on Sun Solaris Cluster technologies
- Assisted with the installation of 140 Sun Solaris and Windows servers, six Storagetek 6540 storages and two Storagetek SL500 tape robots
- Assisted with the installation of Symantec NetBackup 6.5
- Operation of Symantec NetBackup 6.5
- Built a large monitoring solution for IT components and Tetra radio components using Micromuse Netcool
- Storage virtualization using LSI DPM8400
- Participation in the planning and setup of two data centers at two sites, including coordination of external partners
- Hardware: Sun M5000, Sun V245, Sun X4200, Sun StorEdge 6540, SL500, Brocade 4900 FC switches, LSI DPM8400, BIG-IP load balancer
- Software: Solaris 10, Sun Cluster 3.2, Solaris Volume Manager 5.0, Veritas NetBackup 6.5, Netcool 4.0, Web portal, BMC Remedy ITSM 7.0, Oracle 10gR2
Application Administrator/Tester in a team of 5
T-Systems
- Testing and operation of a service portal for Deutsche Telekom
- 2nd-level support
- Troubleshooting a web portal for e-services
- Creation and adaptation of approx. 1000 test cases
- Hardware: Sun Fire 490R
- Software: Liferay Portal 4.3.3, Tibco Portal Builder 4.5, JMS 1.1, Java 1.5, TestLink Test Director 1.0.4, MySQL 4.1, Apache Tomcat 6.0
Application Manager in a team of 5
T-Systems
- Management of a central inventory database for lines (PMA-ISEM)
- Operation of the application
- Deployment and releases of the PMA-ISEM application
- Operation of Apache Tomcat 6.0.0
- Log file analysis
- Maintenance
- Planning and installation of new software releases
- Working according to ITIL
- Incident management
- Troubleshooting
- 2nd-level support
- Applying updates and patches
- Log file analysis of import and export processes
- Hardware: Sun Fire 4900R, HDS storage
- Software: Oracle 10g, J2EE, Solaris 8, PMA-ISEM2, ODEI, XML, Java, Apache Tomcat 6.0
Participant
AS-Systeme und Oracle Educational Services
- Attended Sun training courses on TCP/IP in Solaris 9, Veritas Volume Manager 4.0 and Sun Cluster 3.1 (a total of three weeks)
Solaris System Administration
RWE-Trading
- 2nd level support
- Troubleshooting
- Daily backups using Legato Networker and Tivoli Storage Manager
- Patching Sun Solaris systems
- Documentation
- Project coordination with external service providers
- Administration of Sun servers and T3 storage
- Hardware: Sun E420R, Sun Fire 480R and 490R, Sun Fire 6800, HDS 9960, EMC CX700, Storagetek SL500, FC tape drives, Brocade FC switches
- Software: Veritas Volume Manager 3.5, Sun Cluster 3.1 Update 3, Solaris 8 and 10, Legato Networker 7, Tivoli Storage Manager 5.3
Participant
Arxess
- Attended an ITIL Foundation V2 training with successful certification
Operator in a 20-person team
T-Mobile International
- Operating and monitoring the German and international T-Mobile network
- Monitoring services (SMS, WAP, GPRS, MMS, WLAN, VPN)
- Monitoring lines and network elements (BCS, BTS, etc.)
- Testing and setting up monitoring tools
- Attended several four-week trainings in GSM/GPRS/UMTS and GSM/GPRS monitoring
- Hardware: Intel PCs, Windows NT 4, MSC, BSC, BTS, network elements
- Software: Ines, NetInfo, Metrica, Micromuse Netcool, Firehunter, Microsoft Office 97
Participant
T-Mobile International
- Attended a four-week training on GSM setup and monitoring tools
- Introduction to monitoring tools such as Micromuse Netcool, Ines, NSPL, ISPL, Firehunter
Solaris Administrator Toll Collect
T-Systems
- Setting up and configuring servers using the Jumpstart server procedure
- Creating users and file systems
- Integrating file systems into the Sun Cluster
- Incident and change management using ARS Remedy 4.6
- Troubleshooting
- Creating and improving documentation
- Creating a new operations manual
- Writing shell scripts for installing packages on Solaris servers
- Hardware: Sun Enterprise 250, 450, 4500, Sun Fire 280R, 480R, 880R, Sun Netra T1, Hitachi Direct Storage 9960, StorEdge S1
- Software: Sun Solaris 8, Sun Cluster 3.0, Veritas Volume Manager 3.20, Jumpstart, Sun Explorer, LDAP2DNS, Sysconf
Application Manager in a 20-person team
Vodafone Information Systems
- 1st, 2nd and 3rd level support in a 24/7 shift operation
- Troubleshooting, error analysis and fault clearance
- Restoring services after outages
- Contributed to creating a knowledge database
- Created and sent a Sun Explorer for analysis
- Executed test cases for type and field acceptance tests
- Trouble ticket management with ARS Remedy 4.6
- Hardware: Sun Fire 4800, 280R, 480R, T3+ storage arrays
- Software: HP OpenView Internet Usage Manager 4.0, Sun Solaris 8, Sun Cluster 3.0, high-availability solution, Veritas Volume Manager 3.22, Oracle Real Application Clusters, real-time rating engine from VIS, AAA, HP OpenView ITO, Concord eHealth, TeMIP, Tomcat, Apache web server 2.0
Participant in training courses and workshops
Vodafone Information Systems
- Attended training courses for the IP mediation project
- Configured HP OpenView IUM software, including analysis, troubleshooting and reporting
- Attended Sun workshops on Admin I, TCP/IP, Veritas Volume Manager, Sun Cluster 3.0, T3+ storage array, Legato Networker
- Hardware/software: HP OpenView Internet Usage Manager (IUM 4.0), HP OpenView Network Node Manager, Windows NT 4.0, Windows 2000, Intel PCs, Sun Ultra 10, various Sun storage arrays (D1000, A1000, A5100), Sun Fire 4800
Participant
Sun Educational Center
- Took the Sun Solaris System Admin Version 8 certification
- Installed and configured Sun Solaris 8 on Sun Ultra systems
- Configured the systems and their networking
- Worked with English course materials and exams
- Hardware/software: Sun Ultra 10, Sun Server 450, Solaris 8
Third-level Windows/Antivirus support in a 3-person team
Subsidiary of Deutsche Bank
- Tested and distributed the latest antivirus signatures on Deutsche Bank's Windows servers
- 3rd-level support
- Administered Norton 2000 for corporate servers
- Hardware: Intel PC
- Software: Norton Antivirus 2000 Corporate Edition 7.03 and 7.50, Windows NT 4.0 Server and Workstation 4.0, Remcon PC-Duo
Operator in a 15-person team
Commerzbank IB
- Monitored and troubleshot jobs and applications on Solaris production servers
- Provided 1st-level support in case of errors
- Escalated to server or production managers
- Created shift handover reports
- Reporting
- Hardware: Sun SparcStation and servers E4500, E6500, E10000
- Software: Microsoft Access 2000, Tivoli Service Desk 6.0, Tivoli Enterprise Console, Autosys, ELOG
Seminar participant
BOV AG
- Attended training for BOV Certified Networking Specialist focusing on MCSE NT 4.0
- Completed exercises from the MOC courses
- Hardware/Software: Microsoft Windows NT 4.0, IIS 4.0, Exchange Server 5.5, Proxy Server 2.0
Summary
Join a company that can offer me the opportunity to further develop my skills and expand my experience in the Linux/Unix server environment.
Skills
Operating Systems Client: All Microsoft Operating Systems From Windows 95 To Windows 10
Operating Systems Server: Sun Solaris 8, 9, 10, 11; Red Hat Enterprise Linux 6.5; Microsoft Windows Nt 4.0; Microsoft Windows Server 2000/2003; Vmware Esx Server
Scripting Languages: Sql, Ksh, Sh, Bash
Networking/communication: Tcp-ip, Ssh, Ssl, Https, Ip Routing, Dhcp, Dns, Wins, Ras, Iis, Nis, Nis+, Nfs, Gsm, Umts, Gprs, Wlan
Databases: Microsoft Access From Xp To 2019; Ms Sql Server 2008; Oracle 8 To 16
Applications: All Microsoft Office Versions From Office 4.3 To Office 2019; Veritas Ha Foundation Suite 6.0; Ibm Tivoli Monitoring 6.2; Hp Openview Ium 4.0; Hp Openview Network Node Manager 6.30; Ibm Tivoli Storage Manager 5.3; Legato Networker 6.5; Liferay 4.0; Netcool 4.01 Itsm; Etts; Ars Remedy 4.3; Peregrine Service Center 6.1; Apache Tomcat 6.0.0 And 7.0.0; Apache Http Server 2.0; Huawei Ngbss; Huawei Mediation; Huawei Prm
Hardware Workstation: X86 Pcs And Notebooks, Ipads, Sun Sparcstations/ultra/blade/sun Ray Thin Clients
Hardware Server: Sun Enterprise 220r, 420r, 4500; Sun Fire 280r, 480r, 490r, 880, 1280r, 4800r, 4900r; M3000, M5000, V245, X4200; Oracle Server T5, T6, T7
Hardware Storage: Sun Storedge 2540, 6540 Including Cam Software, Lsi Dpm 8400
Hardware San: Fibre Channel Switches By Brocade
Languages
Certifications & licenses
BOV Certified Networking Specialist
ITIL Foundation V2
MCSE NT 4
Sun Solaris Certified System Admin for Solaris 8 & 10
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