Aghimien Esosa

AGHIMIEN, ESOSA PROFILE I am a result-oriented professional with experience in a technological environment involved in planning, administering and implementing IT specific projects. Skilled in VSAT hub engineering, customer support, system maintenance and LAN/WAN technologies within high-stress, deadline-driven environments focusing on efficiency and cost-effectiveness. I have a good understanding of Windows operating systems Cisco routers and Switches, remote connectivity design/implementation and network security. In addition to my strong technical ability, I have good written, oral and creative communication skills. SKILL SET AND COMPETENCIES Maintaining virtual private networks, firewalls, email security and web protocols, security and programs Developing tracking scripts to record system vulnerabilities IT and Telecoms business development, analysis, planning and deployment. Leadership, mentoring and organizational skills. In-depth knowledge of high end Cisco devices, Application firewalls, SIEM, IDS/IPS Broad experience in troubleshooting skills of VoIP and WAN/MAN/LAN infrastructures and remote accesses. Strong in IP Networking and Routing Protocols Familiar with Cisco Nexus 5000, 7000 and 9000 high end data switches, Fortinet, Cisco Routers and Switches, Firewalls and Operating Systems, Network Security/Monitoring Tools, Enterprise Tools and Protocols. Strong understanding of TCP/IP, subnetting, routing, access control lists, NAT and network traffic analysis. Implementation of HP VWS (Virtual work station) PROFESSIONAL WORKING EXPERIENCE 1. UPLAND CONSULTING / AFCOM SATELLITE NETWORKS 27, Balarabe Musa Crescent, Victoria Island, Lagos, Nigeria. June 2011 – July 2014 Field/Network Engineer Main responsibilities and Achievements Setup of Upland Consulting Lagos office network infrastructure. Coordinating VSAT and Microwave field support operations. Customer support management using iDirect NMS GUI. Integration and Management of Cisco 2811 iDirect Core router. Setup and support of Upland Consulting office network to include LAN, Windows Server 2008 infrastructure and Internet service. Deployment of ISCPC VSAT Link for Total Nigeria. Managed Project Installation of 6.3M Earth station antenna installation at Upland Consulting Lagos office. Systems integration and commissioning of iDirect 5-IF VSAT hub at the Lagos office. Roll out for Shell Petroleum Development Company Secondary Schools Internet project on the iDirect TDMA VSAT platform. Fiber optic cable installation and termination at Upland’s Lagos teleport by IP wholesale Internet provider. TDMA network design and planning (link budget analysis/ bandwidth sizing) using the iDirect network planning tool. Network monitoring, traffic engineering (Quality of Service - QOS), and analysis using the iMonitor GUI. Network fault diagnosis and resolution in line with the customer’s agreed SLA. Designed IP addressing scheme for customers on the iDirect network. Configuration of iDirect upstream router (Cisco 2800 and 2600 series) for backhaul traffic to each customer’s HQ Installation of 3.8M Ku-band Earth station antenna in Port Harcourt Design and Implementation of a Mesh network STM Ku-band VSAT network for NPDC Benin Installation of Redline (RDL 5000) radios for chevron PTP Links within Lagos and Port Harcourt 2. SHELL PETROLEUM DEVELOPMENT COMPANY (SPDC) Port Harcourt, Nigeria. August 2014 – January 2017 Datacom IP/Network Security Engineer Main responsibilities and Achievements •Configuration of Cisco router/ switches for Shell IA LAN usage •Level 3 Support Management of Cisco Access points/Devices •Conduct background in IP/Layer 2/Layer 3 networking, LAN/WAN and WiMAX network architecture within Shell IA/ Shell remote site network. •Extend technical support to customers through remote and on-site troubleshooting. •Provisioning (IP assignment, core network configuration, DNS setup, monitoring and graphing for customer backup and other customer network services within Shell IA network). •Design, Implementation and management of Cisco firewall, intrusion detection/intrusion prevention, VPN, SSL, application control, Antivirus, and other network component policies within the Shell SPDC Landscape •Daily triage, and update/resolution of tickets generated by Shell Service Now ticketing system and respond to inbound phone and electronic requests for technical assistance • Coordinate, and monitor log analysis for our SAP managed services offerings, to ensure customer policy and security and data integrity requirements are met. •Responsible for configuring and implementing DHCP, HSRP, Ciscoworks, SNMP, QoS, VLANs, VTP, PBRs, VOIP dial-peers, OSPF, PPP/CHAP&PAP, Load Balancing, GRE Tunnel, etc •Maintain, configure and manage security solutions; like, TACACS+, Access control lists, Authentication Authorization Accounting-AAA for secured access, etc. •Carry-out routine preventive maintenance for all telecoms equipment. •Configure, Install and Troubleshoot Cisco Identity Services Engine (Cisco ISE) •Configure and monitor McAfee e-Policy Orchestrator(ePO) for endpoints security and compliance (Virus Scan Enterprise, Data Loss Prevention, Application Control and Device Control) •Monitor Overall IT environment via IBM Qradar Security Information and Event Management (SIEM) •Use User Behavioral Analytics (UBA) to spot patterns across numbers of systems to provide advanced warning on new threats 3.SHELL NIGERIA EXPLORATION AND PRODUCTION COMPANY (SNEPCO) Lagos, Nigeria January 2017- Till date Information Security / Data Analyst Engineer Main responsibilities and Achievements •Responsible for maintaining, operating and managing SNEPCO IT network infrastructure of about 700 Cisco routers and switches, 200 APs, 6 WLCs, etc., within Nigeria. •Making sure zero downtime is observed during operational hours for network services. •Responsible for administering and configuring Network devices such as: Cisco routers, Cisco catalyst switches, Wireless LAN Controllers-WLC, Wireless access points, Cisco ACS, Cisco Wireless Aironet Bridges, Cisco Works, Cisco ASA firewall etc. •Responsible IP Planning and management, IOS upgrade, device configuration standardization, configuration backup. •Responsible for IP address assignment and management for over 2000 subnet, 500 loopback IPs for devices and 100 IPs for point-to-point links. •Monitor and manage SNEPCO 622MB capacity interdivisional links (nWAN) and 155MB capacity international links (iWAN) for national and international WAN connectivity. •Continuous fine-tuning of IBM Qradar SIEM Use-Cases to reduce False Positives •Support Users on Remediation issues encountered via Cisco ISE •Configure and install various network devices and services (e.g., routers, switches, firewalls, Wireless LAN Controller, Cisco ISE) •Periodical review of Shell’s Sea Eagle LAN IT Procedures, Guidelines, Work Instruction and Policies •Perform network maintenance and system upgrades including service packs, patches, hot fixes and security configurations •The support and administration of firewall environments in line with IT security policy •Integration of End-Devices to Cisco ISE through Network Access Devices (NAD) •Monitor performance and ensure system availability and reliability •Provide Level-2/3 support and troubleshooting to resolve issues •Work within established configuration and change management policies to ensure awareness, approval and success of changes made to the network infrastructure •Implementation of HP VWS (virtual work station) devices across the SNEPCO Seismic infrastructure Keeping intellectual property and sensitive production data in house and only transmitting encrypted pixel data over LAN or WAN •Select and implement security tools, policies, and procedures in conjunction with the company’s team EDUCATION Madonna University, Okija, Anambra State, Nigeria. (2002 – 2007) Bachelor of Engineering (B.Eng) Electrical / Electronic Engineering. Koenig Pvt New Delhi, India (2010 - 2011) Cisco Certified Internetwork Expert Course/Exam (CCIE) Uniben Demonstration Secondary School, Benin, Edo state, Nigeria. (1994 – 2000) Senior Secondary School Certificate Delta Steel Company Primary School 1, Warri, Delta State., Nigeria. (1989 – 1994) Primary School Leaving School Certificate. PROFESSIONAL CERTIFICATIONS Cisco Certified Network Associate (CCNA R&S) Cisco Certified Network Professional (CCNP R&S) Cisco Certified Internetwork Expert (CCIE R&S) Attempted PERSONAL DATA Contact Address: No 11 Adeshina street Aguda, Surulere, Lagos Mobile Telephone: - Email:-Sex: Male REFEREES David Osemwegie - Shell Petroleum Development Company. Afolabi Mabogunje - Upland Consulting Limited