Charles Aiyenigba
IT Officer | Systems Administration | Network & Infrastructure | Cybersecurity
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About
Results-driven IT professional with 3+ years of experience managing IT infrastructure, supporting enterprise users, and keeping digital systems running securely and efficiently. Proven ability to reduce user downtime by 30%, optimize LAN infrastructure, and enforce cybersecurity best practices across structured, multi-user environments. Experienced in Windows and Linux administration, network configuration, cloud infrastructure, and IT documentation.
A fast learner who takes full ownership of IT operations and thrives in fast-paced, growth-oriented organizations. Abuja-based and available immediately.
Experience
Technical Coordinator - Gracetech Groups - Abuja, FCT
(2025-01 - 2026-07)
Managed end-to-end IT operations for a growing private-sector organization, providing technical support to executive leadership and all departments. Top Performing Staff Award 2026
- Installed and configured RJ45 LAN infrastructure from scratch, improving network stability and eliminating recurring connectivity incidents across the office.
- Reduced user downtime by 30% through proactive system monitoring, diagnostics, and remote administration via RustDesk and QuickAssist.
- Administered user accounts, access permissions, and MFA in line with IT security policy; managed antivirus, firewalls, and endpoint protection.
- Performed routine system maintenance, software patching, driver diagnostics, and performance optimization to maintain continuous operations.
- Managed IT asset inventory, coordinated with vendors for hardware and service support, and ensured accurate procurement recordkeeping.
- Set up workstations, email accounts, and system access for new staff as part of a structured onboarding process.
- Produced structured IT documentation, troubleshooting guides, and incident logs for management review, improving workflow efficiency by 15%.
System Analyst - IT (SIWES/NYSC) - Independent National Electoral Commission (INEC) - Abuja, FCT
(2022-01 - 2024-10)
Supported mission-critical IT infrastructure at a national regulatory institution where data security and system uptime were non-negotiable.
- Provided first-line technical support to staff across departments, resolving hardware, software, network, and authentication issues efficiently.
- Installed and configured LAN infrastructure, reducing network errors and improving multidepartment system performance.
- Administered user accounts, MFA, and access permissions across a large, multi-user institutional environment.
- Conducted data backup verification, system health checks, and preventive maintenance to ensure business continuity.
- Trained and guided staff on IT systems, tools, and cybersecurity best practices.
- Maintained compliance-aware IT documentation and contributed to process improvements, reducing documentation turnaround time by 15%.
Data Scientist - Queryfier LLC - Abuja, FCT
(2023-08 - 2023-11)
- Developed predictive models using Python, improving business optimization outcomes by 10% through data-driven insights.
- Conducted data cleaning, analysis, and visualization on structured and unstructured datasets; delivered reports to non-technical stakeholders.
Software QA Engineer - Lustack LLC - Abuja, FCT
(2023-07 - 2023-08)
- Documented test cases and tracked software defects, reducing bug resolution cycles by 20% through structured defect reporting.
Education
Bachelor of Science - Computer Science - Federal University Lokoja (2023)

