Kristian G.-2nd and 3rd-Level Support
Check rate
Experience
2nd and 3rd-Level Support
Samhammer AG
- Call and ticket handling using ticketing systems
- Qualified user support
- Remote troubleshooting of hardware and software issues
- Software assignment and installation via remote access
- Support for users setting up computers and mobile devices
- User management for various applications
- Close cooperation with the client (2nd and 3rd-Level Support)
IT Technician
Computacenter AG & Co.OHG
- Responsible for the complete installation, maintenance, and repair of technical systems and equipment on site
- Independently carried out fault diagnoses and resolved hardware and software problems
- Regularly performed maintenance work to ensure smooth operation and system efficiency
- Provided direct customer support and technical advice, including user training on new technologies and system updates
- Effectively documented all technical incidents and resolution measures to continuously improve the service
- Responded quickly in emergency situations to minimize downtime and restore critical system functionality
Linux Administrator
SAS - WAF.TO IT Security UG
- Responsible for managing and expanding the local IT infrastructure, including the administration of client operating systems
- Managed virtual server environments
- Led IT projects with a focus on efficient execution and quality assurance
- Coordinated first- and second-level support to ensure smooth operations
- Managed server service level agreements (SLA) and implemented SAS solutions for the Azure Cloud
- Used modern monitoring tools such as Checkmk and Icinga2 to monitor the IT infrastructure
Development Engineer
QuestBack GmbH
- Experience in developing and maintaining CI/CD pipelines with tools such as Gitlab and Jenkins
- Extensive knowledge of managing container-based infrastructures with Docker
- Used advanced monitoring tools such as Grafana, Prometheus, EFK-Stack, and Nagios for performance monitoring and troubleshooting
IT System Administrator
Unitymedia NRW GmbH
- Operated the company's internal IT infrastructure
- Designed and further developed the IT infrastructure
- Provided support and assistance to technical staff and customers
- Defined standards for network technology, servers, operating systems, telephony, etc.
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Information Technology.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Information Technology, Customer Service, Operations, Project Management, and Quality Assurance.
Summary
Experienced Linux System Administrator with in-depth knowledge of system configuration, troubleshooting, and security. Has a proven track record of managing large data centers and implementing efficient solutions. Ready for new challenges and always eager to develop and implement innovative solutions.
Skills
- It Security
- Monitoring
- Cloud Platforms
- Hosting
- Container Technologies
- Virtualization
- Troubleshooting
- Web Server Management (E.G., Apache, Nginx)
- Knowledge Of Hosting Platforms (E.G., Cpanel, Plesk)
- Linux System Administration
- Scripting And Automation (E.G., Bash, Python)
- Itil Framework And Processes
- Server Administration
- Backup And Recovery Strategies
- Customer Communication And Support Skills
- Automation
- Security Management
- Communication
- Monitoring And Performance Optimization
- User Training And Development
Languages
Certifications & licenses
SAS® VIYA® DEPLOYMENT
Statistics
Experience
Expertise
Qualifications
Frequently asked questions
Have questions? Find more information here.
Kristian is based in Dornum, Germany.
Kristian speaks the following languages: German (Advanced), English (Advanced), Croatian (Advanced).
Kristian has at least 10 years of experience. During this time, Kristian has worked in at least 4 different roles and for 4 different companies. The average length of individual experience is 3 years and 7 months. Note that Kristian may not have shared all experience and actually has more experience.
Based on recent experience, Kristian would be well-suited for roles such as: 2nd and 3rd-Level Support, IT Technician, Linux Administrator.
Kristian's most recent position is 2nd and 3rd-Level Support at Samhammer AG.
In recent years, Kristian has worked for Samhammer AG and Computacenter AG & Co.OHG.
Kristian is most experienced in industries like Information Technology.
Kristian is most experienced in business areas like Information Technology, Customer Service, and Operations. Kristian also has some experience in Project Management and Quality Assurance.
Kristian has recently worked in industries like Information Technology.
Kristian has recently worked in business areas like Customer Service and Information Technology.
Kristian has 1 certificate: SAS® VIYA® DEPLOYMENT.
The availability of Kristian needs to be confirmed.
Daily rate distribution
The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.
Average rates for similar positions
Rates are based on recent contracts and do not include FRATCH margin.
The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.
The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.
Calculated based on our freelancers’ daily rates as of 25 Oct 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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