TOSIN AREMU

Tele: 647-***-**** Email: ac8yxi@r.postjobfree.com

Resourceful Information Technology Professional with over 8 years of experience in the Information and Communication Technology industry. Excellent team player who is well rooted in computer systems, value added services and wireless networks which span through system design and architecture, systems administration and support, systems deployment in production environment, traffic trends analysis and capacity management with a view to surpassing customers’ expectations.

CORE COMPETENCIES AND SKILLS

Extensive hands on experience on LINUX/UNIX (Sun Solaris/RHEL) and Windows Operating Systems

Support and Administration (SCCM, Active

Directory, DNS, FTP, SSH, etc.)

Proficient in SQL (Oracle, MySQL) PLSQL DB

Strong systems automation and scripting experience using Unix and Linux shell scripting, python

scripting, java scripts etc.

Familiar with Object Oriented Programming

Languages/Methodologies and associated

technologies. This includes JavaScript, HTML, & Java J2EE, Application Servers, Java, Soap/XML, JSON and Python

Experienced with Oracle Siebel CRM and Adservio; and network/server monitoring tools such as

JConsole, PRTG, Nagios, Cacti, ActiveMQ

Strong Knowledge of Active Directory, TCP/IP,

network protocols, DHCP, GPO, DNS & WINS

services

Knowledge of enterprise level Storage organization

(SAN and NAS), RAID

Knowledge of Big IP F5 Load Balancer

Understanding of Jira and Pentaho reporting tool

Network Infrastructure & WAN/LAN

implementation

Technical Training, excellent documentation and

report writing skill

Virtualization Technology (VMWare) Remote

Desktop

Strong Technical Troubleshooting

Configuration and Installations

Working knowledge of AWS – EC2, Lambda, S3,

DynamoDB, API Gateway

ACCOMPLISHMENTS

Successful Postpaid Subscribers migration to Huawei Online Charging System on VAS nodes

Successfully deployed Windows Server 2003/2013/SBS 2008, Windows ISA server

Effectively configured active directory on domain controller

Implementation of point to point microwave radio link to join two locations thereby reducing operation cost

Installation of Tally ERP and Server/Clients antivirus software on all end user devices company wide PROFESSIONAL EXPERIENCE

Value Added Services (VAS) Application Specialist Globacom Limited Oct 2015 to Feb 2019

Provided technical expertise to troubleshoot, modify and engineer charging/billing software solutions and configurations to ensure the product/solution performs within optimal design specifications. Ensured that the solution is maintainable, scalable and supportable. Designed, developed and maintained tools/automations to assist in troubleshooting, debugging and support

Managed the Charging and billing Systems and rating engines for optimal performance of online rating for Data and Content delivery services

Managed VAS projects and integrated third parties’ VAS systems to the company’s network (USSD, Charging Gateway, SMSC Gateway and SDP)

Configured VAS services and USSD session charging logic over Diameter and http (xml/soap)

Created USSD menus in SCXML language, as well as integrated bank aggregators to USSD for mobile money services

Contributed to meeting the SLAs and KPIs as applicable for the account and unit. Ensured that assigned tasks are completed on time and that delivery timelines were met in accordance with the quality targets of the organization

Trained new employees and knowledge sharing with team members. Took active role in team building, including technical mentoring

Worked with internal/external customers to enhance the understanding of customer problems, and verified that an appropriate resolution had been applied

Performed impact assessments of issues as well as Root Cause Analysis of critical issues Value Added Services (VAS) Operations Engineer Globacom Limited Dec 2012 to Sept 2015

Performed operation and preventive maintenance tasks (hardware cleanup, power systems check, cooling systems checks, network connectivity checks, alarms clearing, file systems trimming, database cleanup etc.) on all VAS

(Value Added Service) platforms/nodes so as to ensure systems availability and reliability

Performed administrator level tasks on Linux servers, ran Oracle and SQL queries, and used Wireshark to run packet capture analysis from tcpdumps in order to undertake proactive measures – such as troubleshooting or escalating to the next level; thereby preventing potential problems and system downtime

Provided technical advice and specifications in RFP/RFQ (Request for Proposal/Quotation) definitions for VAS platforms

Participated in operational projects within the assigned Business Unit.

Implemented approved Work Orders as well as configuration, implementation and testing (UAT) for launch of services/nodes

Created, updated and tracked support tickets using Service management tool IT Administrator Cakasa Limited April 2012 to Nov 2012

Managed Window Server 2013, Domain Controller, Active Directory

Provided Support on Windows Systems, Printers, Scanners and other network elements

Managed Exchange 2013 Server and Microsoft Outlook Accounts

Performed both hot and cold backups of files and databases Assistant Systems Administrator Ranona Limited Feb 2010 to March 2012

Charged with the administration and management of the company’s server applications and database as well as backup system

Managed Active directory – users with different privileges and Microsoft Exchange Server

Handled the deployment and management of telephony system (Alcatel Lucent PABX)

Configured and administered Cisco Switches and Routers System Engineer Lagetronix Limited July 2009 to Jan 2010

Managed installations, upgrades and deployment projects and provided on site supports for clients

Designed and implemented networking (LAN and WAN) topology, as well as routers and switches configuration

Successfully Installed VSAT at clients’ locations

Configured and installed PC based telephony system (TelePCX) EDUCATION AND TRAINING

Allot Certified Technical Engineer (ACTE) 2014

MSc Electrical and Electronics Engineering University of Lagos 2011 BSc Electrical and Electronics Engineering (Honors) University of Ibadan 2007

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