Joshua Oguntuga

I am an experienced Core Banking Application Support and Database Administration professional with strong background in Finacle core banking operations, Oracle PL/SQL, Linux server administration and enterprise infrastructure support. Currently serving as a Core Banking Expert for Finacle Alert Services deployed on a Kubernetes Cluster exposed to clients via Finacle API Hub, delivering critical backend support & customizations, database management, disaster recovery operations, and enterprise application optimization. I have proven ability to troubleshoot complex enterprise systems, optimize operational performance, and provide high-impact technical L2 and L3 support for over 35 million customers.

Database Administrator / Core Banking Application Support Specialist - Guaranty Trust Bank (GTBank) - Lagos, Nigeria

(2022-09)

• Currently serving as Core Banking Expert for Finacle Alert Services, ensuring seamless delivery and monitoring of transactional and non-transactional alert operations.
• Provide backend and frontend support for the bank's core banking application (BANKS/Finacle ecosystem).
• Manage and maintain banking application servers using Linux administration expertise.
• Perform database querying, optimization, and reporting using Oracle PL/SQL for business and operational decision-making.
• Coordinate disaster recovery database failover operations to ensure business continuity.
• Install, configure, and upgrade enterprise database monitoring and server management tools.
• Manage server license renewals and infrastructure support activities.
• Interpret system logs, identify root causes of incidents, and implement timely resolutions.
• Collaborate with infrastructure and application teams to maintain high service availability and operational efficiency.

Dell PowerFlex & Data Domain Technical Workshop - International Technical Workshop - Doha, Qatar

(2025-06 - 2025-06)

• Participated in advanced technical training focused on Dell PowerFlex and Data Domain enterprise storage and data protection solutions.
• Gained exposure to enterprise infrastructure optimization, storage virtualization, backup architecture, and disaster recovery best practices.
• Enhanced technical understanding of scalable storage systems and enterprise data management strategies.

Field Service Engineer - ISN Products Nigeria Limited - Nigeria

(2021-08 - 2022-09)

• Installed, maintained, calibrated, and repaired biomedical and laboratory equipment for healthcare clients.
• Delivered customer training and technical support on Roche, BD, Mindray, AccuCheck, Merck Millipore, and Illumina equipment.
• Achieved an average First Time Resolution Rate (FTRR) of 80% through effective troubleshooting and maintenance support.
• Managed engineering activities while ensuring adherence to quality assurance standards and project timelines.
• Tracked customer complaints and implemented service improvement strategies.

Procurement Officer - ISN Products Nigeria Limited - Nigeria

(2021-04 - 2021-07)

• Managed direct and indirect procurement processes while ensuring cost efficiency and vendor compliance.
• Coordinated import documentation and procurement-related banking processes.
• Maintained accurate supplier and shipping documentation for logistics operations.

Customer Service Executive - ISN Products Nigeria Limited - Nigeria

(2021-01 - 2021-03)

• Handled customer onboarding and post-onboarding support processes.
• Provided first-line technical support and managed customer issue resolution.
• Conducted customer satisfaction surveys and escalated critical concerns where necessary.

Masters - Information Management - Ahmadu Bello University, Zaria

B.Eng - Electrical & Electronics Engineering - Federal University of Technology, Minna (2018)

West African Senior School Certificate - WAEC - Command Secondary School, Kaduna (2012)