Security Engineer Network

Christopher Ikwueme

********@*****.***

Grand Rapids, MI

US Citizen

An accomplished and committed Security Engineer with more than a decade of expertise in securing and monitoring network infrastructure for diverse organizations. I am enthusiastic about the opportunity to join a highly regarded company, where I can put my knowledge of security into practice and actively contribute to the organization's growth.

TECHNICAL SKILLS

AWS Cloud Security: IAM, VPC, Guard Duty, Secrets Manager, Web Application Firewall, Security Hub, Cloud Trail.

Operating Systems: Windows Server 2022, Windows XP, 7, 8,10, and 11, Linux.

Networking: Cisco switches, Cisco routers, Cisco Firewalls, Aruba wireless Access points.

Security Tools: Microsoft Sentinel, Microsoft Defender, Wireshark, Malwarebytes, Solarwinds.

PROFESSIONAL EXPERIENCE

Network Security Engineer September 2017 – Present

Grand Rapids Public Schools,

●Managed and Monitored network traffic for security events and anomalies.

●Implement and manage security tools like firewalls, intrusion detection systems, and antivirus software.

●Conducted vulnerability assessments and Investigated security incidents and breaches.

●Monitored system logs for suspicious activity and patched systems and software to address vulnerabilities.

●Create and managed user access and permissions with multifactor authentication.

●Troubleshot and resolved networking issues, including misconfigurations in Security Groups and Network Access Control Lists.

●Implemented Mac address Authentication preventing noncompany issued devices access to Aruba wireless network.

●Configure and maintain security controls such as firewalls and antivirus software.

●Conduct regular system audits, identifying and rectifying security vulnerabilities and risks.

●Maintaining password policies that outline the organization's password requirements, such as length, complexity, expiration periods and account lockout polices ensuring they align with industry best practices and regulatory requirements.

●Set up alerts for suspicious or abnormal activities, such as multiple failed logins attempts or unauthorized access.

●Lead incident response efforts, including investigating breaches, determining the extent of the compromise, and taking corrective actions.

●Conducted header analysis of phishing emails to determine its origin and remediating by blocking malicious IP addresses and domains.

●Managed Cisco firewalls inbound and outbound network access list.

Network Engineer February 2012 – August 2017

Dematic Corp,

Implemented a secure remote access solution using Cisco AnyConnect VPN, ensuring seamless and secure connectivity for remote employees.

Managed Cisco security solutions, including Cisco ASA, Firepower, and Identity Services Engine (ISE) to protect the network perimeter.

Configured vlan access lists to enhance network security, control network traffic within and between vlans.

Set up Cisco port security preventing unauthorized devices from gaining access to the network, reducing the risk of security breaches and mac address flooding attacks.

Set trunk ports enhancing security by placing devices in separate vlans restricting communication between devices in different VLANs.

Continuously monitored network traffic and security logs using Cisco tools like Cisco Firepower Management Center.

Enforced AWS security best practices, such as IAM policies, encryption, and VPC network segmentation.

Monitored and evaluated AWS CloudWatch logs to ensure optimal performance and security.

Participate in on-call rotations, responding to and resolving critical incidents within SLA guidelines. Coordinate with cross-functional teams to resolve incidents quickly and efficiently.

Implemented auto-scaling and load balancing strategies to improve application availability and performance, leading to a seamless user experience.

Systems Administrator January 2011 – February 2012

Grand Rapids Ophthalmology,

Manage and maintain network devices including Cisco routers, switches, firewalls.

Administered VMware vSphere infrastructure, including vCenter, ESXi hosts, and vSAN storage, ensuring high availability and optimal performance of virtualized systems.

Managed and maintained a large-scale Windows Server environment, including Active Directory, DNS, DHCP, and Group Policy configuration and administration.

Centralized collaboration and information sharing among teams by maintaining SharePoint Server.

Improving email efficiency by performing Exchange mailbox migration, email archiving, and anti-spam solutions.

Implemented and maintained storage solutions, including SAN, NAS, iSCSI, and NFS.

Designing and maintaining a robust disaster recovery plan, including regular backup schedule.

Protecting the network against external threats and ensuring network availability by managing and maintaining firewall and network security systems.

Helpdesk Technician August 2004 – December 2010

Bronson Healthcare Midwest,

Provided expert-level technical support to end-users, resolving hardware and software issues promptly while educating them on security best practices.

Conducted virus and malware scans, identified infected systems, and lead remediation efforts to minimize the impact on the organization's operations.

Install and upgrade windows operating systems, software applications, antivirus software, and computer hardware for an average of 10 laptops, desktops per week.

Performed password resets and account unlocks, ensuring that end-users regain access to their accounts while adhering to security protocols.

Troubleshot and ran diagnostics to resolve PC software, hardware, and printer related issues while utilizing a proactive approach to problem solving.

Monitored help desk tickets daily and resolved issues in a timely manner, with a target resolution time of 24 hours.

CERTIFICATIONS

CompTIA A+

CompTIA Network+

CompTIA Security+

VMware certified Associate

AWS – Solutions Architect Associate

AWS Cloud Security Specialty (Candidate)

HashiCorp – Terraform Associate

EDUCATION

Calvin University, Grand Rapids, MI

BSc - Management Information Systems

Contact this candidate