John Wambua

ICT professional with a BSc in Mathematics and Computer Science and 3+ years of hands-on network administration and infrastructure support experience. Proven track record sustaining 98% uptime across a 200+ user LAN, reducing network downtime by 25% in a regulated healthcare environment, and configuring and auditing routing systems to improve data accessibility by 20%. Skilled in TCP/IP, LAN/WAN administration, network troubleshooting, remote access management, and enterprise network security, with direct exposure to information security compliance in sensitive-data environments.

Seeking to bring network engineering and infrastructure support expertise to Orient Technologies as a fresher-track Network Engineer.

Mathematics & Computer Studies Teacher / IT Lead at Mwareni Secondary School (2024-01 – Present)

• Administered, monitored, and performed preventive maintenance on a LAN infrastructure serving 200+ active users, sustaining 98% system uptime campus-wide.
• Managed ICT infrastructure and asset inventory, including hardware upgrades (SSD installations) and system optimizations, reducing equipment failure and downtime.
• Delivered first-line technical support and help desk troubleshooting for staff and students, diagnosing and resolving hardware, software, and network faults.
• Maintained technical documentation and trained users on data and systems tools, raising student digital literacy by 25%.

Data Systems & Business Analyst (Freelance) at Remote (2019-01 – Present)

• Performed database administration and SQL optimization on MySQL relational databases, tuning complex queries and cutting execution times by 40% while safeguarding data integrity.
• Designed automated data validation and workflow orchestration processes for corporate clients, applying process automation to cut manual processing times by 30%.
• Produced technical documentation and Power BI/Tableau reporting for stakeholders, supporting cross-functional, data-driven decision-making.

IT & Data Systems Intern at Mariakani Hospital (2023-05 – 2023-08)

• Assisted in designing and maintaining network infrastructure, supporting systems administration efforts that reduced downtime by 25%.
• Configured and audited internet and data routing systems, improving data accessibility by 20% while adhering to information security and compliance standards.
• Delivered first-line technical and user support as a help desk officer in a regulated, mission-critical healthcare environment, resolving 95%+ of IT tickets within strict SLA targets.
• Gained hands-on exposure to data governance and information security compliance in a sensitive, regulated data environment.

BSc in Mathematics and Computer Science – Meru University of Science and Technology (2020-01 – 2024-12)