System Administrator

at Flashnet Technologies Ltd
Location Dar es Salaam, Tanzania, United Republic of
Date Posted August 13, 2025
Category IT / Information Technology
Job Type Full-time
Currency TZS

Description

Certifications Preferred: Sophos, FortiGate, Acronis, VMware, Office 365

 

Availability: Immediate joiners will be given preference

 

About Flashnet

Flashnet Technologies Ltd is a leading Managed IT Service Provider in Tanzania offering Business Internet, Cybersecurity, Cloud & Data Centre, IT Infrastructure, and Collaboration Solutions.

 

Job Summary

 

We are looking for a highly skilled System Administrator with 3–4 years of experience to manage and maintain our IT infrastructure, ensure system performance and security, and support both internal and client-facing IT operations. The ideal candidate should be certified in key enterprise technologies and possess hands-on experience with firewalls, virtualization, backups, Office 365, Active Directory, and more. Candidates who can join immediately will be given preference.

Key Responsibilities

  • Manage, monitor, and troubleshoot physical and virtual servers, networks, firewalls, and endpoint devices.
  • Administer and configure Sophos XGSFortiGate, and other firewall systems.
  • Manage Active Directory, user authentication, GPOs, DNS, and domain services.
  • Administer Office 365 services, including Exchange Online, SharePoint, Teams, and OneDrive.
  • Maintain VMware environments (ESXi, vCenter) and perform server provisioning.
  • Perform system backups and disaster recovery using Acronis or similar solutions.
  • Implement and enforce IT security and cybersecurity best practices.
  • Provide Level 1 & 2 technical support and troubleshoot hardware, software, and network issues.
  • Maintain IT asset inventory, software licensing, and infrastructure documentation.
  • Support patch management, updates, and routine system audits.
  • Ensure system performance and uptime by monitoring critical services and generating reports.

 

Required Skills & Qualifications

  • Bachelor’s degree in IT, Computer Science, or a related field.
  • 3–4 years of experience as a System Administrator or similar role.
  • Strong knowledge of:
  • Firewalls (Sophos, FortiGate)
  • Active Directory & Group Policy Management
  • Office 365 administration
  • VMware virtualization
  • Backup and DR solutions (Acronis preferred)
  • Familiarity with DNS, DHCP, TCP/IP, VPN, and LAN/WAN management.
  • Excellent troubleshooting, documentation, and communication skills.
  • Ability to manage multiple tasks and priorities with minimal supervision.

 

Certifications (Preferred)

  • Sophos Certified Engineer / Architect
  • Fortinet NSE 4 or above
  • VMware VCP
  • Microsoft 365 Certified: Modern Desktop Administrator Associate
  • Acronis Cyber Protect Certification

 

What We Offer

  • Competitive salary based on experience and certifications
  • Exposure to enterprise-grade technologies and projects
  • Support for certification and career growth

Applying Instructions

Send your updated CV and certifications to careers@flashnet.co.tz

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