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Network Engineer Security

Location:
Melissa, TX
Posted:
June 16, 2025

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Resume:

ABIODUN OLATUNDE

Melissa, TX ***** 918-***-**** ************@*****.***

LinkedIn: www.linkedin.com/in/abiodun-olatunde-472415ba SUMMARY

Seasoned Network Engineer with 5+ years of hands-on experience in creating efficient network solutions for businesses. Known for excellent problem-solving skills, clear communication, and working well with teams to get results. Skilled in designing, troubleshooting, and improving network performance, with a strong grasp of networking concepts like routing, switching, and security measures. SKILLS

• Deep understanding of networking concepts, including OSI and TCP/IP models, subnetting, routing, switching, and VLANs.

• Skilled in using networking protocols such as; TCP/IP, UDP, ICMP, DNS, DHCP, NAT, PAT, and networking technologies; LAN, WAN, VLAN, VPN, MPLS, QoS.

• Extensive experience monitoring network performance, implementing, and troubleshooting complex enterprise networks.

• Expertise in routing protocols (BGP, OSPF, EIGRP, RIP), switching protocols (STP, VLANs, VTP), and IPv4/IPv6 addressing schemes.

• Deep understanding of network security measures such as IDS/IPS, zero trust, beyond-corp, and network segmentation.

• Proficient in configuring and troubleshooting VPNs for vendor connection access.

• Expert in access control lists (ACL), and NAT configuration for traffic restrictions.

• Skilled in using network monitoring tools like SolarWinds and Wireshark for performance analysis, troubleshooting, and resource management.

• Expertise in Cisco Meraki SD-WAN, Wire, and Wireless to help secure network with integrated security services.

• Expert in using ticketing and change management tools like ServiceNow.

• Strong background in network configuration, adhering to industry standards and best practices.

• Expertise in designing scalable, robust LAN and WAN infrastructures.

• Skilled in Managing customer interactions in a contact center environment, using Cisco UCCX Integration with CUCM configuration.

• Effective team player with excellent time management and communication skills.

• Knowledgeable in designing and managing wireless networks (Wi-Fi) with standards like 802.11ac/ax.

• In-depth knowledge of IDS/IPS systems and network security practices.

• Proficient in Microsoft Office Suite (Word, Excel, PowerPoint).

• Strong verbal and written communication abilities.

• Expertise with Microsoft Active Directory Networking.

• Proficient in Epic Citrix (Beaker).

• Proficiency in SASE concepts like network optimization, implementation, and secure network access. EXPERIENCE

Network Engineer 01/2023-Current

New Horizons Systems Solutions

Configure, manage and maintain network hardware, including routers, switches, and related equipment.

Optimize and configure OSPF routing protocols, including multi-area OSPF and OSPF summarization, for enhanced network performance.

Troubleshoot network connectivity issues using tools such as Wireshark and Splunk.

Monitor network performance and security using Wireshark and other relevant tools, providing detailed reports and recommendations.

Manage OSPF redistribution with other routing protocols, including EIGRP, BGP, and others.

Design scalable and efficient network infrastructures to support the organization's LAN, WAN, and other networking needs.

Troubleshooting network problems by isolating issues to specific OSI layers, such as the physical layers, data link layers, or network layers.

Diagnose and resolve network connectivity issues, slow performance, or hardware failures, using the OSI model to analyze and optimize network performance across all layers.

Stay updated with the latest networking technologies and best practices through workshops and continuous professional development.

Designed and implement network architectures with a deep understanding of OSI model concepts, ensuring seamless data transmission between different devices.

Create and maintain comprehensive documentation of network configurations, processes, and procedures.

Configure NAT and PAT policies, including Static, Source, and Destination NAT, to meet network requirements.

Configure Access Control Lists (ACLs) to regulate traffic across routers and switches for optimal traffic management.

Train and provide ongoing support for junior tech support specialists, ensuring team development. Network Support Engineer 02/2019-12/2022

VOISIP TELECOMMUNICATION LIMITED.

Perform routine security checks on workstations and servers to ensure system integrity.

Manage switches and routers for network operations, using monitoring tools to enhance network performance.

Facilitates effective communication and collaboration within organizations, which includes; call control, device provisioning, messaging, conferencing, and other functions to streamline communication and collaboration using Cisco CUCM

Support and maintain LANs and WANs at the system level.

Monitor network communication process using various protocols associated with each OSI layers, including TCP, UDP, IP, Ethernet, and their functions.

Assisted with diagnosing and resolving OSPF-related issues, including adjacency problems, route flapping, and network convergence.

Collaborate with backup administrators to troubleshoot failures and engage infrastructure teams for hardware-related issues.

Oversee network infrastructure configuration, support, and administration, including telecommunications and voice services.

Coordinate physical maintenance tasks for network devices like routers, hubs, and switches, such as reboots and cable changes.

Provide user support for Windows applications, system configurations, and peripheral devices. EDUCATION AND TRAINING

Bachelor of Technology: Applied Geophysics

Abubakar Tafawa Balewa University - Bauchi, Nigeria. In addition to my degree, I completed projects and coursework in network design, security, and troubleshooting, which laid the foundation for my successful career in network engineering. Computer Networking

Cisco Networking Academy (NETACAD)

CERTIFICATIONS

• CISCO CERTIFIED NETWORK ASSOCIATE CCNA

• CISCO CERTIFICATE OF COMPLETION (ENDPOINT SECURITY)

• COMPTIA SECURITY+

• CISCO NETWORK ACADEMY (CERTIFICATE in CYBERSECURITY ESSENTIALS)

• VMware IT ACADEMY (CLOUD AND VIRTUALIZATION CONCEPTS)



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