John Gitaua
@johngitaua
Systems Support Engineer specializing in enterprise IT infrastructure, cloud and network operations, and reliable 2nd/3rd line support.
What I'm looking for
I’m a Systems Support Engineer with 6+ years of experience supporting enterprise IT infrastructure, including banking systems, networks, and cloud environments. I specialize in maintaining high availability, troubleshooting complex issues, and optimizing system performance across mission-critical environments, with strong 2nd and 3rd line support experience.
In recent roles, I’ve delivered remote IT support, managed WordPress-based systems, and implemented backup, recovery, and system restoration processes to protect uptime. I also administer Microsoft Azure (IAM, storage, networking, policies), monitor performance, and apply root cause analysis and operational automation to reduce downtime, including supporting critical operations (EOD, SOD, EOM) and implementing Zabbix monitoring for real-time visibility.
Experience
Work history, roles, and key accomplishments
• Delivered remote IT support across multiple client environments, including system troubleshooting and infrastructure support.
• Managed WordPress-based systems, including hosting setup, plugin configuration, and performance optimization.
• Implemented backup, recovery, and system restoration processes to ensure uptime.
• Diagnosed and resolved technical issues affecting system performance and
• Design, manage, and support hybrid IT environments focusing on availability, security, and performance.
• Support critical operations (EOD, SOD, EOM) ensuring system reliability.
• Provide 2nd and 3rd line support across servers, databases, and network infrastructure.
• Perform root cause analysis and implement solutions to reduce downtime.
• Administer Microsoft Azure (IAM, storage, networki
• Managed card systems and electronic payment platforms (ATM, POS, mobile banking).
• Provided 2nd/3rd line support for Card Switch systems and integrations.
• Maintained VISA/MasterCard connectivity and transaction processing.
• Monitored system uptime and performance across banking infrastructure.
• Supported system upgrades and core banking components.
• Conducted fraud analysis and transa
• Administered Active Directory, backups, and endpoint systems.
• Managed patching, SCCM deployments, and endpoint security.
• Supported network infrastructure and enterprise communication systems.
• Led migration of email gateway to cloud security platform.
• Implemented Zabbix monitoring for real-time infrastructure visibility.
• Designed and deployed network infrastructure and IT systems.
• Supported servers, workstations, and enterprise applications.
• Implemented backup, monitoring, and security solutions.
• Provided technical support and user training.
Education
Degrees, certifications, and relevant coursework
HubSpot Academy
SEO Certification , Web Page
2024 - 2024
Covers the principles and practices of Search Engine Optimization (SEO), including keyword research, on-page and off-page optimization, link building, technical SEO, and analytics. Demonstrates the ability to create and optimize content to improve search visibility, rankings, and traffic.
Cisco Networking Academy
Cisco Certification, Computer Systems Networking and Telecommunications
2019 - 2020
Comprehensive training in computer networking and telecommunications, covering network design, configuration, troubleshooting, and security. Demonstrates the ability to manage and support LAN/WAN infrastructures and implement secure, scalable network solutions.
St. Paul's University
Bachelor of Business Information Technology
2012 - 2015
St. Paul's University
Bachelor in Business Information Technology , Business Information Technology(BBIT)
2012 - 2015
A multidisciplinary degree combining business management principles with information technology. Focused on applying IT solutions to solve business problems, improve decision-making, and support digital transformation. The program covered business systems, databases, networking, project management, and IT strategy.
Muhoho High School
2007 - 2010
Tech stack
Software and tools used professionally
Availability
Location
Authorized to work in
Job categories
Skills
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