Ivan Nuss - IT Systems Administrator

Q: Where is Ivan based?

Ivan is based in Oranienburg, Germany .

Q: What languages does Ivan speak?

Ivan speaks the following languages: Russian (Native), German (Advanced), English (Elementary) .

Q: How many years of experience does Ivan have?

Ivan has at least 11 years of experience. During this time, Ivan has worked in at least 6 different roles and for 7 different companies . The average length of individual experience is 2 years and 6 months . Note that Ivan may not have shared all experience and actually has more experience.

Q: What is Ivan's latest experience?

Ivan's most recent position is IT Systems Administrator at Berliner-Schulen .

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

In recent years, Ivan has worked for Berliner-Schulen .

Q: Which industries is Ivan most experienced in?

Ivan is most experienced in industries like Education , Information Technology (IT) , and Transportation and Logistics . Ivan also has some experience in Professional Services and Telecommunication .

Q: Which business areas is Ivan most experienced in?

Ivan is most experienced in business areas like Information Technology (IT) , Customer Service , and Sales .

Q: Which industries has Ivan worked in recently?

Ivan has recently worked in industries like Education .

Q: Which business areas has Ivan worked in recently?

Ivan has recently worked in business areas like Information Technology (IT) .

Recommended expert

Oranienburg, Germany

Experience

Feb 2019 - Present

7 years 1 month

IT Systems Administrator

Berliner-Schulen

Set up and maintain the educational network infrastructure including WLAN
Create, customize, and deploy images
Troubleshoot hardware and software and maintain hardware for PCs, laptops, projectors, and smartboards
IT consulting and training

Aug 2018 - Nov 2018

4 months

IT Service Technician

DIN e.V.

Inventory hardware, adjust BIOS settings, perform BIOS firmware upgrades and install Windows 10 including custom applications via PXE boot
On-site replacement of desktop PCs, laptops, monitors, and peripherals
Analyze defective hardware and troubleshoot issues

Jan 2017 - Jul 2018

1 year 7 months

IT Service Technician

Bechtle GmbH

Receive, assemble and inventory client and server hardware, perform initial installations, firmware upgrades and system deployments
On-site replacement of fat and thin clients, monitors, and peripherals
Hardware repairs and mounting servers in rack cabinets

Jul 2016 - Dec 2016

6 months

IT Service Technician / Field Service Technician

Dell GmbH und Samsung GmbH

Install, maintain and repair PCs, workstations, notebooks, servers, and printers at the component level on-site
Replace faulty parts and test to ensure proper functioning
Perform expansions, upgrades and migrations of existing systems
Instruct users on the provided hardware and software
Escalate issues when needed
Document work in IT systems

Jul 2016 - Jul 2016

1 month

Field Service Technician

DHL GmbH

Install new software on-site
Back up data
Instruct users on the new interface
Document completed work

Mar 2015 - Jun 2016

1 year 4 months

System Administrator, 2nd Level Support

Deutsche Bahn AG

Migrated from Windows Vista to Windows 7, including data backup before and data restoration after migration
Ticketing and 2nd-level support using remote tools
Software service, system provisioning, troubleshooting, and customer consulting

Jul 2008 - Aug 2008

2 months

Sales Promotion

Unitymedia

Acquired new customers, managed existing customers, and handled complaints
Reported to the client and handled contract signings and renewals

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 Education (7 years), Information Technology (2 years), Transportation (1.5 years), and Professional Services (0.5 years).

Education

Information Technology

Transportation

Professional Services

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) and Customer Service (2 years).

Information Technology

Customer Service

Summary

Focus on IT system administration using Active Directory, OpenVPN, RDP, TeamViewer, and other vendor-specific remote and client access tools. Image and software deployment. Systematic troubleshooting in hardware and software.
Focus on networking: building complex network infrastructure, setting up servers, NAS, patch panels, and switches. Large-scale WLAN expansion using Ubiquiti. Patching.
Focus on monitoring: setting up building surveillance with Hikvision. Installing alarm systems like Lupusec and all smart home devices from different manufacturers.
Focus on rollout: using tools like HP Service Manager, TransICT, ACAT, ClientChecker, and CMD. Handling tickets as a system administrator in 1st and 2nd level support using remote tools. Processing service and support requests in hardware and software. Installing, configuring, backing up and restoring data, maintaining and uninstalling hardware and software components.
Several years of experience in system analysis, maintenance, and repair.
Hardware and software skills include:
PC, laptop, notebook, tablet, smartphone
Printers, copiers, scanners, and multifunction devices
Smartboard, ActiveBoard
Networking, TCP/IP
Windows XP and newer
MS Office from 97
IBM Lotus Notes

Skills

Programming

Java 2 Years +
C/c++ 1 Year +
Web Development: Html5 2 Years ++

Databases

Mysql 1 Year +
Oracle 1 Year +

Networking

Tcp/ip, Lan/wan, Wlan, Intranet/internet 15 Years +++
Openvpn

Other

Cad, Autocad, Autodesk Inventor 2 Years ++
Eclipse 2 Years +
Visual Studio 6 2 Years +
Ms Office 15 Years +++
Ibm Lotus Notes 2 Years +

Languages

Russian

Native

German

Advanced

English

Elementary

Education

Oct 2012 - Jun 2019

FH Dortmund

Computer Science · Dortmund, Germany

Profile

Created

September 2024

Last Update

September 2025

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Frequently asked questions

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

Where is Ivan based?

Ivan is based in Oranienburg, Germany.

What languages does Ivan speak?

Ivan speaks the following languages: Russian (Native), German (Advanced), English (Elementary).

How many years of experience does Ivan have?

Ivan has at least 11 years of experience. During this time, Ivan has worked in at least 6 different roles and for 7 different companies. The average length of individual experience is 2 years and 6 months. Note that Ivan may not have shared all experience and actually has more experience.

What roles would Ivan be best suited for?

Based on recent experience, Ivan would be well-suited for roles such as: IT Systems Administrator, IT Service Technician, IT Service Technician / Field Service Technician.

What is Ivan's latest experience?

Ivan's most recent position is IT Systems Administrator at Berliner-Schulen.

What companies has Ivan worked for in recent years?

In recent years, Ivan has worked for Berliner-Schulen.

Which industries is Ivan most experienced in?

Ivan is most experienced in industries like Education, Information Technology (IT), and Transportation and Logistics. Ivan also has some experience in Professional Services and Telecommunication.

Which business areas is Ivan most experienced in?

Ivan is most experienced in business areas like Information Technology (IT), Customer Service, and Sales.

Which industries has Ivan worked in recently?

Ivan has recently worked in industries like Education.

Which business areas has Ivan worked in recently?

Ivan has recently worked in business areas like Information Technology (IT).

What is Ivan's education?

Ivan attended FH Dortmund for Computer Science.

What is the availability of Ivan?

Ivan is immediately available full-time for suitable projects.

What is the rate of Ivan?

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