Cybersecurity Analyst Risk Management

Waliu Oyeniran

Cybersecurity Analyst

Phone: 848-***-**** Email: ********@*****.***

Professional Summary:

Cybersecurity Analyst with 2+ years of hands-on experience, certified through the U.S. Console Cybersecurity Certificate program. Proven expertise in identifying and responding to security incidents, conducting threat analysis, and leveraging industry- standard tools like Splunk and Wireshark. Adept in applying key security frameworks including NIST and ISO/IEC 27001, with a strong technical foundation in networking, Linux systems, and cybersecurity fundamentals. Driven by a security-first mindset and committed to protecting organizational data and infrastructure in dynamic threat environments.

Core Skills

• Analytical thinking and troubleshooting

• Security fundamentals (CIA Triad, Risk Management, Threat Landscape)

• Security frameworks and controls (NIST, ISO/IEC 27001, CIS Controls)

• Vulnerability assessment & management

• Incident detection and response

• Access control and authentication

• Written and verbal communication

• Attention to detail and documentation

• Security-first mindset

Tools & Technologies

• SIEM Splunk

• Packet Sniffers: Wireshark, tcpdump

• Endpoint Security: Windows Defender, ClamAV

• Firewalls & VPNs: pfSense, OpenVPN

• Monitoring & log Analysis: Syslog, Event Viewer

• Penetration Testing Tools: Metasploit

Systems & Networking

• Networking protocols (TCP/IP, DNS, HTTP/HTTPS)

• Network architecture and firewalls

• Operating systems: Windows, Linux, Ubuntu, Kali.

• Command line tools and scripting (Bash, PowerShell) Programming & Scripting:

• Python (Scripting for automation and analysis)

• SQL (Querying for data extraction and analysis)

Education:

Bachelor of Science in Information Technology 09/2020 – 02/2025 International Open University

Certifications:

• Cisco Networking Academy Data Communication and network Services.

• University of Colorado: Certificate in Computer Security and System.

• CompTIA Security+ (SY0-601)

Professional Experience:

Windows Systems Administrator

Sterling Bank, Lagos, NGA Jan 2018 – Jul 2022

• Oversaw DNS and DHCP configuration and troubleshooting across multiple subnets.

• Maintained and monitored domain controllers and Active Directory replication health.

• Created and deployed software packages using SCCM to automate application distribution.

• Scheduled and enforced updates and security patches via SCCM and WSUS.

• Assisted in cloud readiness assessment and migration planning to Office 365.

• Provided documentation for change management and system upgrades.

• Monitored server and service availability using SCOM and SolarWinds.

• Administered GPOs to enforce password policies, drive mappings, and desktop restrictions.

• Performed regular snapshot and VM backup tasks for disaster recovery readiness.

• Assisted in maintaining PKI infrastructure including certificate renewals and SSL installation.

• Participated in Active Directory cleanup efforts, removing stale accounts and groups.

• Conducted disaster recovery testing and maintained updated SOPs for business continuity.

• Managed hardware inventory and asset tracking for server infrastructure.

• Performed RAID configuration and basic SAN/NAS troubleshooting.

• Managed file permissions and shares with strict adherence to least privilege principles.

• Delivered training sessions to desktop support staff on basic server troubleshooting.

• Acted as escalation point for complex incidents affecting core infrastructure services.

• Managed and monitored virtualization platforms – VMware vSphere and Microsoft Hyper-V.

• Developed custom PowerShell scripts to automate repetitive system administration tasks.

• Administered and maintained Windows Server 2008/2012/2016 environments, including patching and upgrades.

• Managed Exchange Server 2013/2016 infrastructure – mailbox databases, connectors, and email routing.

• Ensured system security through antivirus management, patch compliance, and vulnerability assessments.

• Created performance reports and capacity planning documentation for server resources.

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