Wisdom Tetteh Ayornu
London,United Kingdom
Summary
MSc Telecommunication Engineering graduate with a background in Cyber Security, IT Networking, and Systems Support. Skilled in Office 365 and Azure administration, scripting automation, cloud security, and hybrid infrastructures. Passionate about delivering efficient, scalable, and secure technology solutions with a proactive, hands-on approach.
Overview
9
9
years of professional experience
5
5
years of post-secondary education
1
1
Certification
Work History
IT and Programmes Manager
Caribbean and African Health Network
London, United Kingdom
01.2020 - 05.2025
- Provided daily IT support to over 75 end-users, enhancing hardware and software performance and reducing incident resolution time by 35%.
- Drafted and implemented 5+ IT policies, ensuring 100% GDPR compliance within CRM systems.
- Managed 3 external IT vendors, improving service delivery quality and reducing support ticket backlog by 40%.
- Led Office 365 administration and automated 10+ workflows using PowerShell and Logic Apps, cutting manual processing time by 50%.
- Maintained 100+ Windows endpoints, ensuring timely patching and system security compliance with 98% uptime.
Senior NOC Engineer / Network Operations Supervisor
Millicom (Tigo) Ghana Limited
Accra, Ghana
10.2018 - 07.2019
- Supervised NOC Engineers to maintain 99.99% network uptime.
- Planned NOC projects and liaised with cross-functional engineering teams.
- Prepared availability and performance reports for CTO review.
NOC Engineer
Millicom (Tigo) Ghana Limited
Accra, Ghana
09.2017 - 09.2018
- Monitored over 300 BSS and NSS nodes, ensuring 99.9% network uptime and enabling swift fault resolution within SLA targets.
- Performed network expansions and implemented change requests, improving coverage and capacity across key service areas by 20%.
IT Operations Officer
Ghana National Service Scheme
Accra, Ghana
09.2016 - 08.2017
- Diagnosed and resolved over 100 hardware/software faults per month, improving system uptime and reducing technical support response time by 25%.
- Set up 200+ user accounts and managed data collection for personnel deployment across 10 departments, enhancing operational readiness and data accuracy by 30%.
Education
MSc. - Advanced Communication Engineering
University of Kent
Canterbury, United Kingdom 09.2019 - 09.2020
BSc. - Telecommunication Engineering
Ghana Technology University College
Accra, Ghana 08.2012 - 06.2016
Skills
- Cloud and Office 365 Administration (Exchange, SharePoint, Teams, OneDrive, Microsoft Purview)
- Azure Active Directory, Virtual Machines, Conditional Access Policies
- Security & Compliance: MFA, DLP, Azure Security Centre, GDPR
- Networking: LAN/WAN, VPNs, IPv4/IPv6, Network Security Groups
- Automation & Scripting: PowerShell, Azure CLI, Logic Apps
- Virtualisation: Citrix Cloud DAS, VMware, XenServer
- Monitoring Tools: Intune, Azure Monitor, Endpoint Manager
- Technical Tools: MATLAB, VPI Photonics
Certification
- Microsoft Certified: Azure Administrator Associate
- Microsoft 365 Certified: Modern Desktop Administrator Associate
- CompTIA Security+
- Cisco Certified Network Associate (CCNA)
Languages
English
Accomplishments
- Cloud Automation Lab Project: Designed and deployed Azure virtual environment with PowerShell and ARM templates; automated monitoring with Logic Apps.
- Hybrid Network Configuration Simulation: Simulated LAN/WAN connectivity and configured enterprise hybrid networks.
- Linearisation schemes in a 4G/5G communications link
Affiliations
- Computer Gaming, Basketball, Football
References
References available upon request.
Timeline
IT and Programmes Manager
Caribbean and African Health Network
01.2020 - 05.2025
MSc. - Advanced Communication Engineering
University of Kent
09.2019 - 09.2020
Senior NOC Engineer / Network Operations Supervisor
Millicom (Tigo) Ghana Limited
10.2018 - 07.2019
NOC Engineer
Millicom (Tigo) Ghana Limited
09.2017 - 09.2018
IT Operations Officer
Ghana National Service Scheme
09.2016 - 08.2017
BSc. - Telecommunication Engineering
Ghana Technology University College
08.2012 - 06.2016
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