Freelancer: Experienced Senior System Administrator with over 8+ years in managing IT infrastructure

Freiberufler / Selbstst�ndiger

Remote-Arbeit

Verf�gbar ab: 01.01.2025

Verf�gbar zu: 100%

davon vor Ort: 50%

Top-Skills

Systemadministration

Cloud Engineer

IT Service Manager

Sprachen

English

German

Einsatzorte

St�dte

Berlin (+50km)

L�nder

Deutschland, Schweiz, �sterreich

Remote-Arbeit

m�glich

Projekte

10 months

2024-02 - now

Oversee cloud infrastructure on Azure, ensuring seamless integration with systems

System Administrator

Rolle

System Administrator

Projektinhalte

Oversee cloud infrastructure on Azure, ensuring seamless integration with systems
Implement and manage security policies and firewalls to safeguard network and data integrity.
Oversee cloud infrastructure on Azure/Defender for Endpoint, ensuring seamless integration of organization application
Develop and execute disaster recovery plans and backup strategies to minimize downtime.
Automate routine tasks using scripts, improving efficiency and reducing human error.
Conduct regular system audits and performance tuning, achieving a 17% increase in system uptime.
Collaborate with other departments to understand and meet their IT needs.
Implemented Microsoft Intune and successfully enrolled 300 devices, streamlining device management and enhancing security compliance.
Introduced Freshservice ITSM tool and assisted in its implementation, improving incident management and service delivery processes.
Managed the IT onboarding process for new employees, ensuring they received appropriate hardware, software, and access permissions, resulting in a smoother transition and increased productivity.
Deployed Microsoft Defender for Endpoint and configured advanced threat protection, reducing security incidents by 40%.
Established comprehensive security setups, including antivirus, malware protection, and regular security audits to maintain high-security standards.

Kunde

Emnify, Berlin

6 months

2023-05 - 2023-10

Installation, configuration, and monitoring of servers, networks, and storage systems

IT Operation Engineer

Rolle

IT Operation Engineer

Projektinhalte

Installation, configuration, and monitoring of servers, networks, and storage systems in�the data center and troubleshooting for system malfunctions
Carrying out updates and patches on servers running on Cloud (AWS, Microsoft Azure &�Xen Orchestra) and Onpremise.
Optimization of IT processes and further development of system landscape
Implementing security standards and ensuring adherence to compliance regulations�
Working in and on the Service Desk to support our employees and freelancers
Support with on boarding measures for new employees and freelancers as well as advice�for individual departments

Kunde

ExperienceOne, Berlin

1 year 9 months

2021-07 - 2023-03

assistance on diverse software applications and hardware systems

IT SUPPORT ENGINEER (LEVEL 3)

Rolle

IT SUPPORT ENGINEER (LEVEL 3)

Projektinhalte

Performs complex problem solving and assistance on diverse software applications and�hardware systems for department users.
Maintains currency of knowledge with respect to technology, equipment, applicable laws, regulations, standards and/or systems.
Assist Program Directors, News Editors and the Tv Presenters on technical issues during the Live shows and news production
Oversees, maintains, and inputs applicable records such as, but not limited to, network users, security, and tracking inventory levels of equipment and materials. Make input, reconcile and audit billing information from a record keeping system.
Performs advanced technological systems support, maintenance, and testing for proper upkeep of systems; troubleshoots and resolves complex system hardware, software, and network failures and conflicts.
Participates in the review, evaluation and recommendation of solutions relating to hardware and software acquisitions and/or network updates.
Oversees and performs the installation, configuration and maintenance of computers, networks, workstations ad other related equipment and devices.
Responsible for the setting up, maintenance and repair of routers, switches, and backup systems integral to network functionality

Kunde

RT DE Production, Berlin, Germany

2018 - 2020: Delivered network technology training to junior IT team members and end-users

Customer: Senior IT Consultant, Freelance, Lagos, Nigeria

Tasks:

Delivered network technology training to junior IT team members and end-users,enhancing knowledge base and team productivity.
Led team to improve year-over-year sales by 22% after performing needs analysis, creating new training modules, and leading monthly instructional sessions.
Created support documentation that empowered and enabled the user community to extend skills, leverage system features and find resolutions to questions without intervention from the support team.
Configured hardware, devices, and software to set up workstations for employees.
Implementing new connectivity network configurations.
Investigating and correcting problems with printers, copiers, and other peripheral devices.
Set up hardware and software in optimal configurations to meet network performance requirements.
Maintained 240+ Windows computers and peripherals, including all configuring and monitoring. Worked with vendors to cut equipment costs by 18%.

2010 - 2018: Set up hardware and software in optimal configurations to meet network performance requirements

Role: IT Specialist

Customer: Hotel Fidelma, Enugu, Nigeria

Tasks:

Set up hardware and software in optimal configurations to meet network performance requirements.
Investigated and corrected problems with printers, copiers, and other peripheral devices.
Improved the security of web-based operations by collaborating with other IT professionals and third-party suppliers
Provided access to the computer network and computer systems by troubleshooting user access issues and managing security threats.
Listened to user feedback and collaborated with third-party suppliers, management, IT staff, and employees in other departments to maintain the IT architecture.
Used database analysis to organize the company's proprietary data such as inventory and payroll facts in the company database- Responded to support requests from end users and patiently walked individuals through basic troubleshooting tasks.
Patched software and installed new versions to eliminate security problems and protect data.
Assessed system hardware and software and suggested modifications to reduce lag time and improve overall speed.
Configured hardware, devices, and software to set up workstations for employees.
Became a trusted resource through high-level problem-solving skills. Solved customer issues with 12% more success than the company average.

Aus- und Weiterbildung

5 years 2 months

2005-09 - 2010-10

Computer Science

Institute of Management & Technology, Enugu, Nigeria

Institution, Ort

Institute of Management & Technology, Enugu, Nigeria

Schwerpunkt

Kompetenzen

Top-Skills

Systemadministration Cloud Engineer IT Service Manager

Produkte / Standards / Erfahrungen / Methoden

Profile
I would describe myself as passionate, hard-working, optimistic, team player, and I like to be part�of the solutions at all times.�Experienced Senior System Administrator with over 8+ years in managing IT infrastructure,�enhancing security, and leading technical teams. Skilled in server deployment, network security,�cloud services, and IT service management. Proficient in automating processes, improving�system performance, and implementing innovative solutions.

Personal Skills

Strong customer service ethos.
Ability to work well with people.
Good communication skills.
Excellent organizational skills.
Enthusiasm for continual�learning.

IT skills

Microsoft Endpoint Security
Microsoft Intune
Mobile Device Management�(MDM)
Mobile Application Management
(MAM)
Azure Active Directory (Azure AD)
Office 365 Administration
Windows 10/11 Management
PowerShell Scripting
Endpoint Security
Compliance Policy Management
Conditional Access Policies
Microsoft Sharepoint
Ansible
Kubernetes
Docker
Microsoft Azure(Entra Id)
Github
Good knowledge of Routers,�Firewalls, Switches
Hardware & Software�Troubleshooting
KVM Hypervisor, Virtual Box &�VMware
Linux OS
MS SQL, MySql

IT Tools Used
Monitoring and Management

SolarWinds
Nagios
PRTG Network Monitor

Cloud Management

Microsoft Azure
Amazon Web Services
Google Workspace
Jamf

Ticketing and IT Service�Management (ITSM):

FreshService
Zendesk
ServiceNow
Jira Service Management
OTOBO Helpdesk

Networking

Wireshark
Cisco Packet Tracer

Remote Administration

Remote Desktop Protocol (RDP)
SSH (Secure Shell)
Xen Orchestra
VMware vSphere

Microsoft Tool

Microsoft Entra ID
Defender for Endpoint
Intune
Microsoft 365
Exchange Online

Automation and Scripting

PowerShell
Bash/Shell scripting
Ansible

Einsatzorte

St�dte

Berlin (+50km)

L�nder

Deutschland, Schweiz, �sterreich

Remote-Arbeit

m�glich

Projekte

10 months

2024-02 - now

Oversee cloud infrastructure on Azure, ensuring seamless integration with systems

System Administrator

Rolle

System Administrator

Projektinhalte

Oversee cloud infrastructure on Azure, ensuring seamless integration with systems
Implement and manage security policies and firewalls to safeguard network and data integrity.
Oversee cloud infrastructure on Azure/Defender for Endpoint, ensuring seamless integration of organization application
Develop and execute disaster recovery plans and backup strategies to minimize downtime.
Automate routine tasks using scripts, improving efficiency and reducing human error.
Conduct regular system audits and performance tuning, achieving a 17% increase in system uptime.
Collaborate with other departments to understand and meet their IT needs.
Implemented Microsoft Intune and successfully enrolled 300 devices, streamlining device management and enhancing security compliance.
Introduced Freshservice ITSM tool and assisted in its implementation, improving incident management and service delivery processes.
Managed the IT onboarding process for new employees, ensuring they received appropriate hardware, software, and access permissions, resulting in a smoother transition and increased productivity.
Deployed Microsoft Defender for Endpoint and configured advanced threat protection, reducing security incidents by 40%.
Established comprehensive security setups, including antivirus, malware protection, and regular security audits to maintain high-security standards.

Kunde

Emnify, Berlin

6 months

2023-05 - 2023-10

Installation, configuration, and monitoring of servers, networks, and storage systems

IT Operation Engineer

Rolle

IT Operation Engineer

Projektinhalte

Installation, configuration, and monitoring of servers, networks, and storage systems in�the data center and troubleshooting for system malfunctions
Carrying out updates and patches on servers running on Cloud (AWS, Microsoft Azure &�Xen Orchestra) and Onpremise.
Optimization of IT processes and further development of system landscape
Implementing security standards and ensuring adherence to compliance regulations�
Working in and on the Service Desk to support our employees and freelancers
Support with on boarding measures for new employees and freelancers as well as advice�for individual departments

Kunde

ExperienceOne, Berlin

1 year 9 months

2021-07 - 2023-03

assistance on diverse software applications and hardware systems

IT SUPPORT ENGINEER (LEVEL 3)

Rolle

IT SUPPORT ENGINEER (LEVEL 3)

Projektinhalte

Performs complex problem solving and assistance on diverse software applications and�hardware systems for department users.
Maintains currency of knowledge with respect to technology, equipment, applicable laws, regulations, standards and/or systems.
Assist Program Directors, News Editors and the Tv Presenters on technical issues during the Live shows and news production
Oversees, maintains, and inputs applicable records such as, but not limited to, network users, security, and tracking inventory levels of equipment and materials. Make input, reconcile and audit billing information from a record keeping system.
Performs advanced technological systems support, maintenance, and testing for proper upkeep of systems; troubleshoots and resolves complex system hardware, software, and network failures and conflicts.
Participates in the review, evaluation and recommendation of solutions relating to hardware and software acquisitions and/or network updates.
Oversees and performs the installation, configuration and maintenance of computers, networks, workstations ad other related equipment and devices.
Responsible for the setting up, maintenance and repair of routers, switches, and backup systems integral to network functionality

Kunde

RT DE Production, Berlin, Germany

2018 - 2020: Delivered network technology training to junior IT team members and end-users

Customer: Senior IT Consultant, Freelance, Lagos, Nigeria

Tasks:

Delivered network technology training to junior IT team members and end-users,enhancing knowledge base and team productivity.
Led team to improve year-over-year sales by 22% after performing needs analysis, creating new training modules, and leading monthly instructional sessions.
Created support documentation that empowered and enabled the user community to extend skills, leverage system features and find resolutions to questions without intervention from the support team.
Configured hardware, devices, and software to set up workstations for employees.
Implementing new connectivity network configurations.
Investigating and correcting problems with printers, copiers, and other peripheral devices.
Set up hardware and software in optimal configurations to meet network performance requirements.
Maintained 240+ Windows computers and peripherals, including all configuring and monitoring. Worked with vendors to cut equipment costs by 18%.

2010 - 2018: Set up hardware and software in optimal configurations to meet network performance requirements

Role: IT Specialist

Customer: Hotel Fidelma, Enugu, Nigeria

Tasks:

Set up hardware and software in optimal configurations to meet network performance requirements.
Investigated and corrected problems with printers, copiers, and other peripheral devices.
Improved the security of web-based operations by collaborating with other IT professionals and third-party suppliers
Provided access to the computer network and computer systems by troubleshooting user access issues and managing security threats.
Listened to user feedback and collaborated with third-party suppliers, management, IT staff, and employees in other departments to maintain the IT architecture.
Used database analysis to organize the company's proprietary data such as inventory and payroll facts in the company database- Responded to support requests from end users and patiently walked individuals through basic troubleshooting tasks.
Patched software and installed new versions to eliminate security problems and protect data.
Assessed system hardware and software and suggested modifications to reduce lag time and improve overall speed.
Configured hardware, devices, and software to set up workstations for employees.
Became a trusted resource through high-level problem-solving skills. Solved customer issues with 12% more success than the company average.

Aus- und Weiterbildung

5 years 2 months

2005-09 - 2010-10

Computer Science

Institute of Management & Technology, Enugu, Nigeria

Institution, Ort

Institute of Management & Technology, Enugu, Nigeria

Schwerpunkt

Kompetenzen

Top-Skills

Systemadministration Cloud Engineer IT Service Manager

Produkte / Standards / Erfahrungen / Methoden

Strong customer service ethos.
Ability to work well with people.
Good communication skills.
Excellent organizational skills.
Enthusiasm for continual�learning.

IT skills

Microsoft Endpoint Security
Microsoft Intune
Mobile Device Management�(MDM)
Mobile Application Management
(MAM)
Azure Active Directory (Azure AD)
Office 365 Administration
Windows 10/11 Management
PowerShell Scripting
Endpoint Security
Compliance Policy Management
Conditional Access Policies
Microsoft Sharepoint
Ansible
Kubernetes
Docker
Microsoft Azure(Entra Id)
Github
Good knowledge of Routers,�Firewalls, Switches
Hardware & Software�Troubleshooting
KVM Hypervisor, Virtual Box &�VMware
Linux OS
MS SQL, MySql

IT Tools Used
Monitoring and Management

SolarWinds
Nagios
PRTG Network Monitor

Cloud Management

Microsoft Azure
Amazon Web Services
Google Workspace
Jamf

Ticketing and IT Service�Management (ITSM):

FreshService
Zendesk
ServiceNow
Jira Service Management
OTOBO Helpdesk

Networking

Wireshark
Cisco Packet Tracer

Remote Administration

Remote Desktop Protocol (RDP)
SSH (Secure Shell)
Xen Orchestra
VMware vSphere

Microsoft Tool

Microsoft Entra ID
Defender for Endpoint
Intune
Microsoft 365
Exchange Online

Automation and Scripting

PowerShell
Bash/Shell scripting
Ansible

Vertrauen Sie auf Randstad

Im Bereich Freelancing

Im Bereich Arbeitnehmer�berlassung / Personalvermittlung

Fragen?

Rufen Sie uns an +49 89 500316-300 oder schreiben Sie uns:

Name E-Mail-Adresse Ihre Frage

Telefonnummer Unternehmen

Ich habe die Datenschutzbestimmungen gelesen und bin damit einverstanden.

Einsatzorte

Einsatzorte

Projekte

Projekte

Oversee cloud infrastructure on Azure, ensuring seamless integration with systems

Installation, configuration, and monitoring of servers, networks, and storage systems

assistance on diverse software applications and hardware systems

Aus- und Weiterbildung

Aus- und Weiterbildung

Computer Science

Kompetenzen

Kompetenzen

Top-Skills

Produkte / Standards / Erfahrungen / Methoden

Einsatzorte

Einsatzorte

Projekte

Projekte

Oversee cloud infrastructure on Azure, ensuring seamless integration with systems

Installation, configuration, and monitoring of servers, networks, and storage systems

assistance on diverse software applications and hardware systems

Aus- und Weiterbildung

Aus- und Weiterbildung

Computer Science

Kompetenzen

Kompetenzen

Top-Skills

Produkte / Standards / Erfahrungen / Methoden

Vertrauen Sie auf Randstad

Fragen?

Rufen Sie uns an +49 89 500316-300 oder schreiben Sie uns:

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