Senior Systems Administrator at Alfred & Victoria Associates

Job Expired

Senior Systems Administrator

Location: Lagos
Department: Information and Communication Technology

Job Summary & Purpose

  • The Senior Systems Administrator will be responsible for resolving escalated service issues, coaching other administrators to resolve, engineer and implement complex projects, and for maintaining and overseeing the technology
  • This role is a key position within the ICT operation unit and will be called upon to resolve the highest level technical issues.

Organisational Relationships:

  • Reports to: Head, ICT


  • Management of Office 365 including all communication and collaboration services offered under it including Skype for Business, Teams, Exchange E-mail and SharePoint.
  • Device management and enrolment.
  • Device compliance/configuration
  • Conditional Access.
  • Mobile Application management.
  • DLP policies.
  • Identify security risks within Office 365 environment and services and suggest mitigations.
  • Support hybrid Microsoft environment.
  • Investigates and analyses resource utilization and prepares reports.
  • Optimizes the network infrastructure to maintain the highest possible level of performance and security.
  • Plan the replacement of obsolete resources that make up the enterprise network infrastructure.
  • Build, support and maintain the VDI environment, including standardized templates, application delivery methods, enterprise antivirus, persona management infrastructure, host servers and zero clients.
  • Build, support and maintain the configuration management suite, including multiple Windows Enterprise desktop images (WIMs), automated task sequences, an automated backup infrastructure, central imaging environment, automated software deployment and patch management updates.
  • Build, support and maintain Active Directory Group Policy Objects that are used to secure and configure the enterprise client-computing infrastructure.
  • Build, support and maintain role-based access control for enterprise computing solutions, including VDI, endpoint management suite and Print/Scan solutions.
  • Build, support and maintain support documents, standard operating procedures and policies related to the network, security systems, server and storage infrastructure, and the client-computing infrastructure.
  • Work with application developers and third-party vendors to develop software or virtualized installation packages for network deployment via the Enterprise configuration management suite.
  • Build, support and maintain the enterprise network, servers and storage infrastructure, both virtual and physical, through the use of routine commands, administration techniques, tools, and utilities.
  • Build, support and maintain the Microsoft and Linux infrastructure for the enterprise.
  • Build, support and maintain the protection of company data and systems through the use of security solutions, backups, redundancy and disaster recovery solutions.
  • Management of asset lifecycle process through planning and forecasting, including recommendation for replacement of obsolete or end-of-life resources as needed
  • Interacts with external vendors to evaluate technology changes, including licensing and contracts, and their impact on the business.
  • Investigates and analyzes resource utilization and prepares reports and metrics, making appropriate changes to optimize the infrastructure and provide the highest possible level of performance and security.

Person Specifications
Academic Qualification:

  • Bachelor’s Degree in Information Technology or related discipline.

Professional Qualification:

  • MCSA Server 2016
  • MCSE Server Infrastructure
  • Certified in Skype for Business having
  • Certified in Office 365
  • ITIL Foundation.


  • 3+ years establishing and maintaining O365 Exchange mailboxes, user accounts, distribution groups and providing input on enterprise exchange policies and procedures supporting Office 365 including SharePoint
  • Three years working with Windows Server OS, Mobile device OS, Client/Server knowledge, Microsoft Active Directory, understanding of Cloud services.

Key Skills & Competencies:

  • Experience with large Exchange to Office 365 migrations
  • Office 365 Admin Application and Services in a Hybrid server environment
  • Deep knowledge of Microsoft Skype for Business, Skype for Business Mobile, Infrastructure, and Clients
  • Knowledge of Microsoft Teams
  • Knowledge of Microsoft Office 365 tenancy administration
  • Implemented Office 365 and Exchange On-Line
  • Deployed Microsoft Skype for Business over virtual clients, wireless environments, and remote environments
  • Deep knowledge of High-Availability computing and networking (load balancing, TCP/IP, DHCP, DNS)
  • Experience using PowerShell, and/or other scripting tools is a huge plus
  • You have in-depth technical expertise in messaging, video, voice, web conferencing (e.g. Skype, Vidyo, Blue Jeans), and IP telephony technologies
  • You have a solid grasp of UCC Communications Protocols (SIP, RTV, WebRTC, H.264, and H.323) and understand the impact of QoS in the UCC ecosystem
  • Hyper-V, vSphere, Citrix, SQL, and Terminal Services
  • Exchange Server 2003 – 2016
  • Windows Server 2003 – 2016
  • OSX troubleshooting.

Physical Exertion on the Job, Key Performance Metrics, Performance Area:

  • Secure and highly available server infrastructure
  • Highly available and secure e-mail infrastructure
  • Highly available UCC platform
  • Functional data loss prevention.

Performance Indicators:

  • 99.9% Server infrastructure uptime
  • Number of unplanned change
  • 99.9% e-mail service uptime
  • Number of e-mail security breaches
  • 99.9% uptime on Unified Communication and Collaboration (UCC) services
  • Number of unplanned changed
  • 100% backup of production data
  • Adherence to data retention policy


  • Very Attractive.

Application Deadline
3pm; 15th October, 2019.

Method of Application

Interested and qualified candidates should send their tailored CV to: using the Job Title as subject of the email

Note: Any application received after the above time will be automatically rejected.

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  • This job has expired!
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