Ivan Nuss - IT System Administrator for School Networks

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Oranienburg, Germany

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Experience

Feb 2019 - Present

7 years 7 months

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

Industry experience

See where this freelancer has spent most of their professional time.

Experienced in Education, Information Technology, Transportation, and Professional Services.

Education

Information Technology

Transportation

Professional Services

Business area experience

See which departments and functions this freelancer has contributed to most.

Experienced in Information Technology and Customer Service.

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

Statistics

Experience

Total positions 7

Experience in Education 7.5 y

Avg length 1 y 7 m

Longest experience 7 y 6 m

Expertise

Recent roles IT Systems Administrator, IT Service Technician, IT Service Technician / Field Service Technician

Main industries Education, Information Technology, Transportation

Main business areas Information Technology, Customer Service

Profile

Member since

September 2024

Last update

September 2025

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Frequently asked questions

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Ivan is based in Oranienburg, Germany.

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

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 7 months. Note that Ivan may not have shared all experience and actually has more experience.

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.

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

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

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

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

Ivan has recently worked in industries like Education.

Ivan has recently worked in business areas like Information Technology.

Ivan attended FH Dortmund for Computer Science.

The availability of Ivan needs to be confirmed.

Daily rate distribution

0 2 4 6 8

<€400 €400-800 €800-1200 €1200-1600 €1600+

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.

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Daily rate avg. 1065 €

The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.

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Median rate 1020 €

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 26 Aug 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.