YUSIFU CONTEH
Freetown
Summary
Experienced System and Database Administrator with 2 years and six months of proven expertise in Oracle database management, SQL Server, PostgreSQL database administration, Linux systems, VMware virtualization, and comprehensive networking knowledge. Proven track record of ensuring seamless operation, optimizing database performance, and implementing robust security measures. Adept at troubleshooting complex issues, implementing upgrades, and maintaining system integrity. Strong analytical and communication skills contribute to effective collaboration with cross-functional teams. Committed to delivering reliable and efficient IT solutions in dynamic environments.
Overview
2
2
years of professional experience
1
1
Certification
Work History
System & Database Administrator
GuarantyTrust Bank
03.2022 - Current
- Oracle Data Guard Administrator
- Enable SQL failover clustering and SQL alwaysON to maintain data consistency
- Integrated with ICSFS on the new currency renomination
- Optimized database performance by monitoring health and implementing tuning recommendations.
- Reduced data retrieval times for business users by creating indexed views and optimizing stored procedures.
- Ensured database security with implementation of role-based access control and regular vulnerability assessments.
- Increased efficiency in software development processes through effective collaboration with developers to design databases that support application requirements.
- Provided timely resolution of critical production issues, minimizing downtime and avoiding potential revenue loss.
- Streamlined backup and recovery processes, enhancing overall system stability and availability.
- Delivered successful database migration projects, ensuring seamless transitions with minimal disruption to business operations.
- Enhanced reporting capabilities by designing efficient ETL processes that improved data accuracy and completeness.
- Implemented capacity planning strategies to accommodate growth in data volume without compromising system performance or reliability.
- Collaborated with cross-functional teams to develop custom applications that supported business objectives and met user needs.
- Conducted regular audits of data quality, identifying inconsistencies and implementing corrective actions as necessary.
- Trained junior team members on best practices for database administration, promoting a culture of continuous learning within the organization.
- Created a robust disaster recovery plan to ensure business continuity in the event of hardware failures or natural disasters.
- Established proactive monitoring solutions that alerted administrators to potential issues before they escalated into major problems.
- Maintained high levels of customer satisfaction by consistently meeting service level agreements for database performance and availability.
- Implemented comprehensive data retention policies that met regulatory requirements while minimizing storage costs.
- Worked with staff to develop and implement procedures to prevent data loss and maximize system availability.
- Developed scripts and processes for data integration and maintenance.
- Built databases and table structures for web applications.
- Installed and configured middleware in Linux and Windows environments.
Internship Student
Guaranty Trust Bank
10.2021 - 02.2022
- Improved internship experience by efficiently managing assigned tasks and meeting deadlines.
- Enhanced team productivity by effectively collaborating on projects and contributing innovative ideas.
- Streamlined office processes with diligent organization, resulting in improved efficiency.
- Developed professional skills through hands-on experiences, including time management and effective communication.
- Configures end-user applications to faster operation work
- Network support and troubleshooting
- Configure POS for merchant.
- Help desk
Education
Bachelor of Science - Computer Science
University of Management And Technology
Kissi Duck Yard FreeTown04.2026
Professional Diploma - Information Technology
BlueCrest College
Sierra Leone 07.2021
WASSCE -
Sierra Leone Muslim Congress
Freetown 06.2016
Skills
Database Administration:
Expertise in Oracle database installation, monitoring, and configuration
SQL and PL/SQL
PostgreSQL and SQL Server
LINUX Administration:
Red Hat Administration,
Oracle Linux
Bash Shell Scripting
Networking:
Switching: VLANS, Inter-VLAN
routing, VTP, STP, Port Security,
DHCP Snooping
Routing: RIP, RIPv2, EIGRP, OSPF,
ACL, NAT, and Subnetting
Virtualization:
VMware Esxi, Hyper-V, Oracle Virtual box and VMware workstation
Server Operating System:
Windows server 2008/2008 R2,
Windows server 2012/2012 R2,
Windows server 2016, Windows
server 2019, Windows server
Languages
English
Full Professional
Certification
Vmware Certified Professional (Vmware ESXI 8) 2024
Oracle Cloud Foundation Certified 2021
Oracle Cloud Certified Associate (OCA) 2023
Cisco CCNA (200-301) CERT: IP connectivity and services. 2021
Cisco CCNA (200-301) CERT: Network Fundamentals and Access 2021
Windows Server 2012 Installation and Configuration 2021
Windows Server 2019 DHCP and DNS 2021
Windows Server 2012R2 Manage Group Policy 2021
Artificial Intelligence for Student 2021
Risk Management for IT and Cybersecurity Managers 2021
CompTIA A+ (220-1001) Understanding Networking 2021
Referees
Name: Kevin S.A. Kansie
Position: Senior Database Administrator
Office: Guaranty Trust Bank
Email: kevin.kansie@gtbank.com
Name: Mr. Mory konate
Position: Chief information officer
Office: Guaranty Trust Bank
Email: mory.roberto@yahoo.com
Contact: +2250709390209
Name: Mr. Amarnath Mishra
Office: Bluecrest College University
Position: Lecturer & Technical Head
Email: amarnathmishra_in@yahoo.com
Timeline
System & Database Administrator
GuarantyTrust Bank
03.2022 - Current
Internship Student
Guaranty Trust Bank
10.2021 - 02.2022
Bachelor of Science - Computer Science
University of Management And Technology
Professional Diploma - Information Technology
BlueCrest College
WASSCE -
Sierra Leone Muslim Congress
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