Kristian Gasic - 2nd and 3rd-Level Support

Q: Where is Kristian based?

Kristian is based in Dornum, Germany .

Q: What languages does Kristian speak?

Kristian speaks the following languages: German (Advanced), English (Advanced), Croatian (Advanced) .

Q: How many years of experience does Kristian have?

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.

Q: What is Kristian's latest experience?

Kristian's most recent position is 2nd and 3rd-Level Support at Samhammer AG .

Q: What companies has Kristian worked for in recent years?

In recent years, Kristian has worked for Samhammer AG and Computacenter AG & Co.OHG .

Q: Which industries is Kristian most experienced in?

Kristian is most experienced in industries like Information Technology (IT) .

Q: Which business areas is Kristian most experienced in?

Kristian is most experienced in business areas like Information Technology (IT) , Customer Service , and Operations . Kristian also has some experience in Project Management and Quality Assurance (QA) .

Q: Which industries has Kristian worked in recently?

Kristian has recently worked in industries like Information Technology (IT) .

Q: Which business areas has Kristian worked in recently?

Kristian has recently worked in business areas like Customer Service and Information Technology (IT) .

Recommended expert

Dornum, Germany

Experience

Nov 2023 - Jun 2024

8 months

Remote

2nd and 3rd-Level Support

Samhammer AG

Call and ticket processing using ticketing systems
Providing expert user support
Remote troubleshooting for hardware and software issues
Assigning and installing software via remote access
Assisting users with setting up computers and mobile devices
User management for various applications
Close collaboration with clients (2nd and 3rd-Level Support)

Dec 2019 - Nov 2023

4 years

IT Technician

Computacenter AG & Co.OHG

Responsible for full installation, maintenance, and repair of technical systems and equipment on-site
Performing independent diagnostics and troubleshooting of hardware and software issues
Regularly performing maintenance tasks to ensure smooth operation and system efficiency
Providing direct customer support and technical advice, including user training on new technologies and system updates
Effectively documenting all technical incidents and solutions to continuously improve service
Responding quickly in emergencies to minimize downtime and restore critical system functions

Oct 2017 - Dec 2019

2 years 3 months

Linux Administrator

SAS - WAF.TO IT Security UG

Responsible for managing and expanding the local IT infrastructure, including client operating system administration
Managing virtual server environments
Leading IT projects with a focus on efficient execution and quality assurance
Coordinating first and second level support to ensure smooth operations
Managing server service level agreements (SLA) and implementing SAS solutions for Azure cloud
Using modern monitoring tools like Checkmk and Icinga2 to monitor the IT infrastructure

Jan 2014 - Oct 2017

3 years 10 months

Development Engineer

QuestBack GmbH

Experience developing and maintaining CI/CD pipelines with tools like GitLab and Jenkins
Extensive knowledge managing container-based infrastructures with Docker
Using advanced monitoring tools like Grafana, Prometheus, EFK stack, and Nagios for performance monitoring and troubleshooting

IT System Administrator

Unitymedia NRW GmbH

Operating the in-house IT infrastructure
Planning and further developing the IT infrastructure
Supporting technical staff and customers
Defining standards for networking, servers, operating systems, telephony, etc.

Industries Experience

See where this freelancer has spent most of their professional time. Longer bars indicate deeper hands-on experience, while shorter ones reflect targeted or project-based work.

Experienced in Information Technology (10.5 years).

Information Technology

Business Areas Experience

The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.

Experienced in Information Technology (10.5 years), Customer Service (4.5 years), Operations (4 years), Project Management (2 years), and Quality Assurance (2 years).

Information Technology

Customer Service

Operations

Project Management

Quality Assurance

Summary

Experienced Linux system administrator with solid knowledge in system configuration, troubleshooting, and security. Has a proven track record managing large data centers and implementing efficient solutions. Ready for new challenges and always striving to develop and implement innovative solutions.

Skills

It Security
Monitoring
Cloud Platforms
Hosting
Container Technologies
Virtualization
Troubleshooting
Webserver Management (E.g., Apache, Nginx)
Hosting Platform Knowledge (E.g., Cpanel, Plesk)
Linux System Administration
Scripting And Automation (E.g., Bash, Python)
Itil Framework And Processes
Server Management
Backup And Recovery Strategies
Customer Communication And Support Skills
Automation
Security Management
Communication
Monitoring And Performance Optimization
User Training And Education

Languages

German

Advanced

English

Advanced

Croatian

Advanced

Certifications & licenses

SAS® VIYA® DEPLOYMENT

Profile

Created

October 2025

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Frequently asked questions

Do you have questions? Here you can find further information.

Where is Kristian based?

Kristian is based in Dornum, Germany.

What languages does Kristian speak?

Kristian speaks the following languages: German (Advanced), English (Advanced), Croatian (Advanced).

How many years of experience does Kristian have?

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.

What roles would Kristian be best suited for?

Based on recent experience, Kristian would be well-suited for roles such as: 2nd and 3rd-Level Support, IT Technician, Linux Administrator.

What is Kristian's latest experience?

Kristian's most recent position is 2nd and 3rd-Level Support at Samhammer AG.

What companies has Kristian worked for in recent years?

In recent years, Kristian has worked for Samhammer AG and Computacenter AG & Co.OHG.

Which industries is Kristian most experienced in?

Kristian is most experienced in industries like Information Technology (IT).

Which business areas is Kristian most experienced in?

Kristian is most experienced in business areas like Information Technology (IT), Customer Service, and Operations. Kristian also has some experience in Project Management and Quality Assurance (QA).

Which industries has Kristian worked in recently?

Kristian has recently worked in industries like Information Technology (IT).

Which business areas has Kristian worked in recently?

Kristian has recently worked in business areas like Customer Service and Information Technology (IT).

Does Kristian have any certificates?

Kristian has 1 certificate: SAS® VIYA® DEPLOYMENT.

What is the availability of Kristian?

Kristian is immediately available for suitable projects.

What is the rate of Kristian?

Kristian's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.