Microsoft 365 Security Operations ITIL Service Delivery

Oluwatosin Balogun Application / IT Support Specialist

Microsoft 365 & Security Administrator | IT Support Specialist. Supporting 200+ users, securing 250+ endpoints, and cutting phishing click rates by 81% across enterprise environments.

Portrait of Oluwatosin Balogun, IT Support Specialist

3+

Years in enterprise IT

200+

End users supported

250+

Endpoints secured

81%

Phishing click-rate drop

Core competencies

IT Support

Tier 1 & Tier 2 Technical Support, Remote Troubleshooting, Incident Resolution, VPN Support, Hardware Deployment, Software Installation, End-User Support, and Service Request Fulfillment.

Microsoft 365 Administration

User & Mailbox Management, Exchange Online, Microsoft Entra ID (Azure AD), Password Resets, Access Control, Group Policy, Security Compliance, and Identity Management.

Security Operations

Microsoft Defender, Defender for Office 365, Bitdefender GravityZone, Threat Analysis, Phishing Simulations, Security Awareness Training, Endpoint Security, and Cybersecurity Best Practices.

Vulnerability Management

OWASP ZAP, Checkmarx, Vulnerability Assessment, Application Security Testing, Penetration Testing Support, Security Remediation, and Endpoint Protection.

Infrastructure

Windows Server 2022 Administration, Hyper-V (Basic), Active Directory, DNS, DHCP, TCP/IP Networking, Network Troubleshooting, and System Availability Monitoring.

Business Applications

Enterprise Application Support, FoxNet HRM, SharePoint Helpdesk, QA/UAT Testing, Workflow Optimization, Process Improvement, and Application Troubleshooting.

IT Service Management

ITIL-Based Service Delivery, SLA Management, Incident, Problem & Change Management, Technical Documentation, Knowledge Base Management, and Continuous Service Improvement.

About

Enterprise IT support with a security-first mindset

Motivated IT professional with 3+ years of experience in enterprise IT support, Microsoft 365 administration, and cybersecurity operations. Skilled in delivering Tier 1, Tier 2, and Tier 3 technical support, administering Microsoft Entra ID, Microsoft 365, Microsoft Defender, Bitdefender GravityZone, and Windows Server 2022 while ensuring high service availability, security, and compliance across enterprise environments.

Proven expertise in supporting over 200 end users, managing 250+ endpoints, conducting phishing awareness campaigns and simulations, reducing phishing click rates by 81%, and remediating application vulnerabilities. Experienced in identity and access management, endpoint security, incident response, vulnerability management, and security best practices. Recognized as Best Staff of the Year (2024) for outstanding contributions to IT support, cybersecurity initiatives, and service excellence.

Skills and expertise

01

Troubleshooting & Technical Support

Hardware, Software, Network

02

Ticketing & Monitoring Tools

Jira, Spicework, Helpdesk, Zendesk, Zoho, Hoducc

03

Application Deployment & Maintenance

04

Process Automation & Training

05

Remote Desktop Assistance / Troubleshooting

TeamViewer, AnyDesk, Chrome Remote Desktop

06

Collaboration Tools

Teams, Zoom, Webex, Google Meet

07

Customer Service & Customer Experience (CX)

08

Endpoint Security

Sophos, MS 365 Defender, Bitdefender

09

User & Application Support and Training

10

Active Directory & Access Control

11

Microsoft Office 365 Administration

12

Network Troubleshooting

TCP/IP, DNS, DHCP, VPN

Education

2018 – 2020

Moshood Abiola Polytechnic

Higher National Diploma in Computer Science, CGPA 3.24

2014 – 2016

Moshood Abiola Polytechnic

Ordinary National Diploma in Computer Science

Experience

Where I've delivered results

Enterprise IT support, Microsoft 365 administration, and cybersecurity operations.

Feb 2023 – Present

IT Support Specialist / Microsoft 365 Administrator

Anchor Insurance Company Limited

  • Provide enterprise IT support for 200+ employees, resolving 50+ weekly incidents while maintaining SLA compliance and achieving an average resolution time of 5 minutes for critical user issues.
  • Administer Microsoft 365 and Microsoft Entra ID environments, including user provisioning, mailbox management, password resets, account lockouts, access control, and identity lifecycle management.
  • Configure user permissions and collaborate on Group Policy implementation to improve security, compliance, and controlled access across enterprise systems.
  • Administer Windows Server 2022 environments, supporting core enterprise services, user authentication, and system availability.
  • Conduct six phishing and malware simulation campaigns annually, reducing phishing click rates from 80% to 15% through security awareness training and targeted user education.
  • Monitor Microsoft Defender threat reports, investigate security alerts, and implement remediation actions to strengthen endpoint security posture.
  • Manage 250+ Bitdefender GravityZone-protected endpoints, including endpoint monitoring, security policy enforcement, threat investigation, and software update deployment.
  • Perform vulnerability assessments using OWASP ZAP and Checkmarx, identifying and supporting remediation of 32 application vulnerabilities.
  • Provide FoxNet HRM application support and automated payroll attendance calculations for 300 employees, improving HR process efficiency.
  • Support enterprise applications, troubleshoot user issues, document solutions, and collaborate with business teams to improve IT service delivery.

Key achievements

  • Reduced phishing click rate by 81% through continuous phishing simulations and security awareness initiatives.
  • Conducted six annual cybersecurity simulation campaigns to improve employee security awareness.
  • Administered and secured 250+ enterprise endpoints using Bitdefender GravityZone.
  • Supported 200+ users while maintaining SLA compliance and improving user productivity.
  • Identified and remediated 32 application vulnerabilities through security testing.
  • Automated payroll attendance processing for 300 employees, improving operational efficiency.
  • Awarded Best Staff of the Year (2024) for exceptional IT support and process improvement.

May 2022 – Oct 2022

Auditor / Customer Service Support

Applink Capitals Nigeria Limited (Remote)

  • Validated customer loan applications with 100% accuracy, ensuring compliance with internal policies and reducing processing errors.
  • Improved loan disbursement efficiency by streamlining approval workflows, identifying discrepancies, and accelerating application processing.
  • Automated Excel-based performance reports using formulas and data analysis, enabling leadership to monitor approval trends and operational metrics.
  • Enhanced customer satisfaction by improving communication processes, reducing response turnaround time, and resolving customer inquiries efficiently.

Projects

Problems solved, processes automated

Each project below follows the problem, action, and result it delivered.

Attendance System / Leave Automation

Problem

The attendance machine was faulty and HR could not generate reliable staff attendance records. The system was not integrated with the enterprise HRM software, making leave deductions, attendance calculations, and payroll preparation manual and time-consuming.

Action

Requested and supervised the replacement of the faulty attendance machine, configured cloud connectivity and database integration, and automated attendance processing by developing leave management modules within the HRM application. Configured automatic deduction of approved leave days from required working days and enhanced reports for direct payroll upload.

Result

HR now generates accurate, detailed attendance reports instantly with automated leave adjustments and payroll-ready outputs — eliminating manual calculations and reducing payroll processing time.

Underwriting Policy Adjustment

Problem

Underwriting staff had to perform full reversals for minor errors, slowing down operations.

Action

Analyzed the workflow, coordinated with the technical team and vendor, and enabled policy adjustment functionality.

Result

Reduced reversal cases drastically; improved efficiency and reduced processing time.

HR Digital Workflow Automation

Problem

HR was using manual, paper-based processes for appraisal, succession, and staff confirmation.

Action

Implemented digital modules for appraisal, succession planning, and confirmation of appointments.

Result

Eliminated paperwork, improved transparency, and enabled digital tracking of performance and confirmations.

E-Commerce Product Page

Description

Developed a fully responsive product detail page as part of an e-commerce user interface, with a structured layout for product information, high-quality images, pricing, and an interactive Add to Cart component.

Highlights

Built with semantic HTML and modular CSS for maintainability, with responsive design patterns optimized for mobile and desktop.

HTML and CSS View live site →

Blogging Platform

Description

Developed a functional blogging platform that lets users create, edit, manage, and publish posts, with interactive UI components and an integrated database layer for storing and retrieving posts.

Highlights

Dynamic content editor with formatting, full CRUD for posts, modular component-based CSS architecture, and an intuitive dashboard for managing posts and drafts.

HTML and CSS

Technical Writing Projects (2023–2024)

Description

Created departmental manuals for the company's Enterprise Solution software (IES), a user manual for Anchor Travel and 3rd-party platforms, and Microsoft 365 documentation.

Highlights

Also led the project of uploading archived files to the cloud using SharePoint (June 2024).

Certifications

Verified credentials

Every certificate links to its verifiable document.

Recommendations

“A reliable and knowledgeable support specialist who always puts the customer first.”

Joshua Olusanya

Underwriting Officer, Akure Branch

“Balogun Oluwatosin is an exceptional IT Support Specialist with strong expertise in troubleshooting, infrastructure management, and customer service. At Anchor Insurance Co. Ltd, Tosin consistently resolved complex technical issues, maintained reliable IT systems, and proactively prevented problems. Known for professionalism, clear communication, and a positive attitude, Tosin became a trusted resource across the organization. Her technical acumen, work ethic, and customer‑centric approach make her a valuable asset to any team.”

Oriowo Michael

Colleague

Contact

Let's work together

Available for IT support, Microsoft 365 administration, and security operations roles.