Open to opportunities

Nahum Karisa

@nahumkarisa

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Executive IT Support professional with 7+ years securing enterprise desktops and improving operations.

Kenya

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What I'm looking for

I’m looking for a role where I can deliver enterprise IT support with a security-first mindset—leading MFA and desktop hardening, improving operations with analytics, and partnering with stakeholders to ship reliable infrastructure and user-ready experiences.

I’m a results-driven IT professional with 7+ years of experience delivering enterprise-level technical support, infrastructure management, and cybersecurity solutions. I’ve built a track record at the United Nations deploying secure desktop environments and aligning delivery with organizational goals.

I lead initiatives that strengthen access and reduce risk, including delivering Multifactor Authenticator (MFA) projects and reinforcing secure access protocols for desktop and network technologies. I also drive measurable operational improvements—such as a DevOps process review that reduced operational cost by 12%.

I bring strong stakeholder communication and a service-focused mindset through daily incident updates, end-user training, and proactive problem-solving. I’ve improved onboarding satisfaction by 62% through training resources, and I support data visibility by building Tableau interactive dashboards for system performance monitoring.

Experience

Work history, roles, and key accomplishments

IT Support & MFA Lead

United Nations

Mar 2019 - Sep 2025 (6 years 6 months)

Deployed secure desktop environments and led MFA project implementation for enterprise users; improved onboarding satisfaction by 62% through targeted training materials and reduced operational cost by 12% via DevOps process review. Managed daily incident updates and delivered hardware troubleshooting, repair, and maintenance to maintain reliable desktop performance.

Incident Management Network Administration Desktop Hardware Troubleshooting Windows Server Administration Secure Desktop Deployment

IT Support & Administrator

United Nations

Mar 2019 - Sep 2025 (6 years 6 months)

Deployed secure desktop environments and led a Multifactor Authenticator (MFA) project to reinforce secure access protocols. Improved support operations by creating training resources that increased onboarding satisfaction by 62% and driving a DevOps process review that reduced operational costs by 12%.

Multi Factor Authentication Secure Desktop Deployment Incident Management Network Administration Windows Server Administration User Training

IT Engineer - End User

iSON Technologies Kenya Limited

Mar 2019 - Jan 2024 (4 years 10 months)

Served as an IT Engineer for End User Support at UN offices in Gigiri, Nairobi, providing end-user support services from 6 March 2019 to 31 January 2024.

end user support Incident Management Network Administration User Training Microsoft Outlook Account Setup Windows Server Administration

IT Engineer - End User Support

iSON Technologies Kenya Limited

Mar 2019 - Jan 2024 (4 years 10 months)

Provided enterprise end-user support through hardware troubleshooting, repair, and maintenance for business-critical desktop environments. Communicated daily incident updates and resolution progress to maintain transparency and service standards.

end user support Network Troubleshooting Windows Server Administration Outlook Mail Setup

IT Assistant

Agriculture and Food Authority

Jul 2017 - Jun 2018 (11 months)

Resolved LAN/WAN connectivity issues and supported network infrastructure through online and onsite customer support. Configured user Outlook mail accounts and delivered end-user training.

Network Administration User Training Onsite Support Service Support

Education

Degrees, certifications, and relevant coursework

Computer Pride Training Centre

NCC Level 4 Diploma, Computing

Earned the NCC Level 4 Diploma in Computing at Computer Pride Training Centre (2017), focusing on data governance, security, and compliance for stable IT operations.

Computer Pride Training Centre

NCC Level 4 Diploma in Computing, Computing

Completed an NCC Level 4 Diploma in Computing, implementing data governance, security, and compliance measures to support stable IT operations. Enhanced reporting processes for actionable IT infrastructure improvements.

ICDL Africa

ICDL Profile Certificate, ICDL Profile

Completed the ICDL Profile Certificate at ICDL Africa (2016).

NCC Education

International Certificate, Computer Studies

Completed the International Certificate in Computer Studies at NCC Education (2014), contributing to Tableau interactive dashboards for system performance monitoring.

NCC Education

International Certificate in Computer Studies, Computer Studies

Completed an International Certificate in Computer Studies, collaborating cross-functionally to design and deploy Tableau interactive dashboards for system performance monitoring.