Charles Nwaokukwu
Surulere
Summary
Innovative professional in technology network design, known for unparalleled productivity and efficient task completion. Specialize in advanced routing protocols, network security measures, and cloud computing integration. Excel in problem-solving, teamwork, and adaptability, ensuring seamless project execution and network optimization.
Overview
15
15
years of professional experience
1
1
Certification
Work History
IT Infrastructure Specialist
Habaripay Technologies
Victoria Island
12.2021 - Current
- Liaised with team members to promote quality and timely project completion.
- Evaluated and monitored network performance and maintenance.
- Provided in-person and remote IT support for all company-wide locations.
- Implemented improvements and restructuring for applications and processes to increase efficiency.
- Developed strategy to define project objectives and requirements.
- Conducted scheduled maintenance during non-peak hours for uninterrupted service.
- Performed tests on newly installed hardware and software to provide components that interface correctly with each other and network.
- Reviewed system logs to determine usage levels, bandwidth, performance and system security to target inefficiencies and implement appropriate solutions.
- Effectively managed variety of mission-critical network tasks, which included vulnerability and application patching, data backups and network configurations.
- Met with departmental managers to discuss project status and determine action plans.
- Assisted various departments in maintaining network security by configuring remote routers and firewalls.
- Secured network systems by establishing and enforcing access control policies.
- Maintained production network according to company SLAs to fulfill agreed-upon client specifications.
- Addressed emergent issues and technical problems by assisting project planning staff with developing action plans and appropriate solutions.
- Extensively researched unfamiliar products and technologies to learn how best to incorporate new options.
- Researched network technology trends and compared to existing architecture to present useful improvement suggestions to clients.
- Met with stakeholders and presented in-depth information on hardware and software products, delivering expertise to make appropriate purchasing decisions.
- Responded promptly to information assurance notifications to detect vulnerabilities and protect clients.
- Slashed expenses and increased allocation of available resources by auditing schedule, cost and contract performance.
Senior System Administrator
Nestoil
Victoria Island
01.2020 - 12.2021
- Developed and implemented IT security policies to protect company's information systems.
- Maintained and administered various system software including Windows Server, Exchange, SQL Server.
- Monitored system performance on a daily basis and identified potential areas of improvement.
- Performed server hardware installations, maintenance, upgrades and repairs as needed.
- Provided technical support to end users for all hardware and software related issues.
- Configured user accounts, permissions and access rights in accordance with company guidelines.
- Implemented backup procedures to ensure data integrity and availability in case of emergency situations.
- Diagnosed network problems using advanced troubleshooting techniques and tools.
- Created detailed documentation of existing systems and processes for future reference.
- Resolved complex technical problems with innovative solutions while ensuring service continuity.
- Assisted in developing disaster recovery plans for mission-critical applications.
- Deployed virtualization technologies such as VMware ESX, ESXi, vSphere or Hyper-V for server consolidation projects.
- Managed storage area networks by configuring Fibre Channel switches, zoning, LUN masking, replication .
- Installed patches on servers according to the patch management policy of the organization.
- Ensured compliance with industry standards such as PCI DSS or HIPAA when required.
- Evaluated vendor products and services against organizational needs before making purchases.
- Conducted regular audits of the IT infrastructure components to identify any security vulnerabilities.
- Coordinated closely with vendors during the installation process of new equipment or software packages.
- Participated actively in project planning meetings to provide input regarding system design decisions.
- Trained junior staff members on best practices related to system administration tasks.
- Improved job tasks and mentored junior team members on best practices and standards.
- Assessed latest innovations to recommend and adopt cost-effective, useful solutions.
- Provided effective resolutions to issues and escalated problems with knowledgeable support and quality service.
- Kept flexible schedule and resolved after-hours and weekend emergencies quickly and accurately.
- Increased system security and performance with proactive changes.
- Orchestrated and oversaw upgrades to system hardware and software.
- Submitted recommendations regarding infrastructure overhauls.
- Consulted users to determine areas in need of improvement.
- Set up, optimized and managed network equipment.
- Generated reports outlining network performance, costs, and downtime issues.
- Set up user accounts, permissions and passwords and defined network policies and procedures.
- Created configuration guides for deploying new desktops, laptops and mobile devices.
- Supported, configured, maintained and upgraded customer networks and in-house servers.
- Oversaw storage management, data migration, backups and drive replacements.
- Monitored application and print servers, rapidly responding to faults and malfunctions.
- Managed email routing and internal message protocols to support reliable delivery of communications.
- Configured and managed email servers and protocols, ensuring reliable and secure communications.
- Implemented and managed VPNs, enabling secure remote access for employees.
- Analyzed and reported on system logs to detect and troubleshoot potential issues before they impact operations.
- Facilitated the migration of servers and applications to cloud platforms, improving scalability and cost-effectiveness.
- Conducted regular system backups and disaster recovery operations, minimizing data loss during critical failures.
- Administered user accounts, permissions, and access controls, enhancing security and compliance.
- Participated in the planning and execution of IT infrastructure projects, meeting deadlines and budget requirements.
- Coordinated with vendors and support teams to resolve technical issues and procure necessary equipment.
- Provided technical support and training to users, improving system understanding and reducing support requests.
- Managed and maintained servers across multiple platforms, ensuring high availability and performance.
- Ensured compliance with IT policies and regulatory requirements, conducting regular audits and assessments.
- Collaborated with IT teams to design and improve the network architecture, enhancing overall performance and reliability.
- Monitored system performance, identifying and resolving bottlenecks to maintain optimal functionality.
- Installed, configured, and updated software and hardware components, ensuring system integrity and compatibility.
- Developed and maintained comprehensive documentation for system configurations and procedures.
- Stayed current with emerging technologies and trends, regularly upgrading systems to maintain competitive advantage.
- Automated routine administrative tasks using scripting languages like PowerShell and Bash, increasing operational efficiency.
- Implemented and monitored network security measures, including firewalls and intrusion detection systems.
- Configured and supported virtual environments using VMware and Hyper-V, optimizing resource utilization.
- Managed storage solutions, including NAS and SAN, optimizing data accessibility and redundancy.
- Diagnosed, troubleshot and resolved hardware and system problems.
- Monitored network performance to determine adjustments needed.
- Installed security software to protect networks.
- Implemented and provided technical support for voice services and equipment.
- Designed, configured and tested computer hardware and operating system software.
- Configured, monitored and maintained email applications or virus protection software.
- Analyzed equipment performance records to determine need for repair or replacement.
- Conferred with network users about solutions to existing system problems.
- Planned, tested and supported high-availability infrastructures.
- Coordinated with vendors and company personnel to facilitate purchases.
- Gathered data pertaining to customer needs to identify, predict and evaluate system and network requirements.
- Analyzed intricate server issues and supported large enterprise and business-critical applications.
- Spearheaded server infrastructure development, quality control, staging, and production operations.
- Promoted continuous improvement for IT governance processes.
IT Systems Administrator
MainOne Telecommunication
Victoria Island
12.2012 - 12.2019
- Installed and configured operating systems, software applications, and system management tools.
- Monitored system performance and implemented strategies for improvement.
- Developed backup procedures to ensure data security and integrity.
- Provided technical support to users regarding hardware, software, and networking issues.
- Resolved network connectivity problems by troubleshooting hardware and software components.
- Performed routine maintenance on servers to ensure optimal performance of the IT infrastructure.
- Implemented security measures such as firewalls and user access controls.
- Created user accounts with appropriate privileges in accordance with organizational policies.
- Managed storage devices such as RAID arrays, SANs, NASs. for optimal utilization of resources.
- Deployed virtual machines using hypervisors like VMWare ESXi or Microsoft Hyper-V.
- Analyzed system logs to detect potential issues before they arise.
- Maintained an inventory of all IT assets including hardware and software licenses.
- Configured switches, routers, wireless access points. according to best practices guidelines.
- Updated firmware on server hardware components when necessary for improved stability and performance.
- Planned upgrades or replacements of existing systems based on budget constraints and resource availability.
- Coordinated with vendors for timely procurement of new equipment or replacement parts when needed.
- Developed scripts in scripting languages such as Python or PowerShell to automate routine tasks.
- Ensured compliance with industry standards related to information security, privacy regulations.
- Assisted in developing disaster recovery plans in case of catastrophic events that disrupt operations.
- Provided appropriate permissions to users for accessing files and databases.
- Managed, troubleshot, backed up and restored data, operating systems, files, documents and drivers to provide comprehensive systems management and support.
- Participated in IT department meetings to identify continuous improvement opportunities and enhance delivery of IT services to users.
- Conducted basic troubleshooting to isolate and diagnose common system problems.
- Kept systems operating efficiently by performing necessary upgrades and repairs.
- Trained and directed users on correct use of software and hardware within systems.
- Created online documentation to help employees resolve day-to-day issues.
- Installed firewalls and antivirus software to improve cybersecurity.
- Decreased spam with firewall filtering and real-time spam black lists for incoming emails.
- Developed and implemented complex internet and intranet applications on multiple platforms.
- Implemented inventory control measures to replenish and maintain IT equipment, supplies, tools and replacement parts.
- Determined feasibility, functionality and potential benefits of proposed systems.
- Built new file servers to maximize web hosting, terminal servers and domain control performance.
- Implement policies, procedures and best practices to safeguard and protect data, reports, and access.
- Increased team productivity and automated repetitive tasks with batch files, PowerShell and VBScript.
- Performed preventive maintenance and upgraded systems to improve network, system, and data availability and integrity.
- Increased system security and performance with proactive changes.
- Diagnosed, troubleshot and resolved hardware and system problems.
- Monitored network performance to determine adjustments needed.
- Designed, configured and tested computer hardware and operating system software.
- Conferred with network users about solutions to existing system problems.
- Provided effective resolutions to issues and escalated problems with knowledgeable support and quality service.
- Planned, tested and supported high-availability infrastructures.
- Implemented and provided technical support for voice services and equipment.
- Kept flexible schedule and resolved after-hours and weekend emergencies quickly and accurately.
- Coordinated with vendors and company personnel to facilitate purchases.
- Consulted users to determine areas in need of improvement.
- Gathered data pertaining to customer needs to identify, predict and evaluate system and network requirements.
- Analyzed equipment performance records to determine need for repair or replacement.
- Configured, monitored and maintained email applications or virus protection software.
- Promoted continuous improvement for IT governance processes.
- Analyzed intricate server issues and supported large enterprise and business-critical applications.
- Spearheaded server infrastructure development, quality control, staging, and production operations.
- Submitted recommendations regarding infrastructure overhauls.
- Installed security software to protect networks.
IT Help Desk Officer
Starcomms Telecommunication
Victoria Island
01.2010 - 12.2010
- Provided technical assistance to customers regarding hardware and software issues.
- Resolved customer queries related to computer networks and systems.
- Assisted in the installation, configuration, and maintenance of IT systems across the organization.
- Troubleshot network connectivity issues for users onsite and remotely.
- Diagnosed system errors and provided appropriate solutions.
- Identified problem areas within existing IT infrastructure and recommended improvements.
- Performed regular system backups to ensure data integrity.
- Created user accounts, managed passwords, monitored access privileges, and enforced security protocols.
- Maintained records of service requests using help desk management software.
- Implemented preventive measures to reduce the risk of future incidents or problems.
- Monitored performance metrics such as response times, resolution rates.
- Deployed new applications on user machines as requested by end-users.
- Updated software versions on PCs and laptops in order to keep them up-to-date with latest releases.
- Investigated root cause analysis for recurring incidents or problems.
- Provided support for mobile devices such as tablets and smartphones.
- Ensured compliance with company policies relating to Information Security standards.
- Conducted training sessions for end-users on various topics related to IT usage.
- Evaluated vendor products in order to recommend suitable solutions for business needs.
- Generated reports on help desk activities for senior management review purposes.
- Assisted customers with various types of technical issues via email, live chat, and telephone.
- Served as first point of contact for incoming technical service calls and emails.
- Handled customer service issues by providing guidance or escalating for advanced support.
- Troubleshot hardware issues and worked with service providers to facilitate repairs for end users.
- Used remote login tools to assist clients with technical and product questions.
- Delivered remote assistance for technical issues using screen sharing, mouse and keyboard control and other tools.
- Walked customers through common phone hardware and software configurations to maximize service functionality.
- Demonstrated advanced product knowledge to solve customer issues.
- Developed and maintained strong relations with customers to meet quality expectations.
- Worked with internal teams to deliver accurate information to customers and service accounts.
- Assisted customer in understanding products, components and systems using technical demonstration.
- Reviewed support cases for technical and troubleshooting accuracy and identified needed process improvements.
- Maintained up-to-date case documentation for future reference.
- Documented customer complaints and inquiries for use in technical documentation and bug tracking.
- Delivered local and remote Tier 1 IT support for hardware and software to company personnel.
- Collaborated with technical staff to establish goals and objectives for system improvements and upgrades.
- Created and implemented new troubleshooting processes, improving efficiency and customer satisfaction while reducing costs.
- Increased technical knowledge by reading trade publications, operating manuals and diagnostics information.
- Stayed abreast of latest software developments to enhance job knowledge.
- Resolved record-breaking backlog of support tickets following major system malfunction.
- Developed and delivered training sessions to customers on how to use products more effectively.
- Resolved customer problems via phone, email, and chat, ensuring timely and effective solutions.
- Collaborated with the technical team to discuss recurring customer issues and develop long-term solutions.
- Conducted remote diagnostics to identify and solve technical problems.
- Updated customer information and account status in the database following each interaction.
- Escalated complex issues to senior technical staff, ensuring proper follow-through until resolved.
- Implemented feedback from customer satisfaction surveys to improve service quality.
- Monitored and responded to support tickets in a timely manner, prioritizing based on urgency and impact.
- Managed the configuration and setup of customer accounts and systems.
- Assisted in the development and updating of technical documentation and support guides.
- Analyzed support tickets to identify trends and recommend product improvements to the development team.
- Documented all customer interactions and resolutions in the ticketing system for future reference and reporting.
- Performed routine maintenance and software updates on support tools and customer systems.
- Maintained up-to-date knowledge of the latest technology trends, tools, and best practices in technical support.
- Trained new support representatives on troubleshooting techniques and company support protocols.
- Provided technical support and troubleshooting services to end-users experiencing hardware and software issues.
- Assisted customers with password resets, account unlocks, and security settings adjustments.
- Maintained positive working relationship with fellow staff and management.
- Answered user inquiries to resolve computer software or hardware operation problems.
- Developed training materials and procedures or trained users in proper use of hardware or software.
Education
Advance Diploma - Business Administration
University of Lagos
Lagos, Nigeria08-2019
Bachelor of Science - Microbiology
University of Lagos
Lagos, Nigeria01-2008
Skills
- Windows Operating System
- Incident Management
- Scripting Languages
- Performance Tuning
- Virtualization Technologies
- Network Administration
- Capacity Planning
- Backup and recovery
- Hardware troubleshooting
- Storage Management
- System monitoring
- Disaster Recovery Planning
- Performance Improvements
- Deployment coordination
- Strategic plan development
- Company Policy Compliance
- Deployment support
- Performance strategy
- Application deployment
- System performance evaluation
- IT collaboration
- System Performance Analysis
- Patch management
- System Troubleshooting
- Virus Protection
- Team Collaboration
- Data Encryption
- Software Deployment
- Technical Troubleshooting
- Hardware Installation
- User Support
- System Upgrades
- VMware and Oracle VM
- Cloud Computing
- Server Management
- System Administration
- Firewall Management
- Data Backup
- Mobile Device Management
- Server and System Administration
- Enterprise Technology
- Active Directory
- Load Balancing
- Cloud Architecture Design
- Storage virtualization
I
- SDLC management
- Password management
Certification
· HPE Learning: Managing HPE 3par StoreServ I: Management and Local Replication
· HPE Learning: Managing HPE 3par StoreServ II: Optimization and remote Replication
. VMware Systems Administrator
. Microsoft Certified Azure Security Engineer Associate.
· Microsoft Certified Azure Administrator Associate.
· Microsoft Certified Azure Fundamentals.
· Microsoft Certified Azure AI fundamentals.
· Microsoft 365 Certified Messaging Administrator Associate.
· Information Technology Infrastructure Library- Foundation.
· System Center Configuration Management and Cloud integration.
· Microsoft Certified Professional.
· Microsoft Certified Systems Engineer – Exchange.
· Microsoft Certified Technology Specialist – Servers|SharePoint|Network.
Languages
English
First Language
Accomplishments
- Supervisor, IT - MainOne
- Team Lead, IT Infrastructure - Nestoil
- Head, IT Infrastructure - HabariPay
- Group Head, IT Service Delivery
Affiliations
- Outdoor activities - Soccer and Jugging
- Reading
References
References available upon request.
Timeline
IT Infrastructure Specialist
Habaripay Technologies
12.2021 - Current
Senior System Administrator
Nestoil
01.2020 - 12.2021
IT Systems Administrator
MainOne Telecommunication
12.2012 - 12.2019
IT Help Desk Officer
Starcomms Telecommunication
01.2010 - 12.2010
Advance Diploma - Business Administration
University of Lagos
Bachelor of Science - Microbiology
University of Lagos
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