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Adelani Adefuwa

@adelaniadefuwa

Application Support Lead at Access Bank Plc, supporting 30+ business-critical platforms and maintaining 99.9% uptime.

At Access Bank Plc, I support 30+ business-critical platforms as an Application Support Lead. I investigate application and transaction issues with Oracle and SQL Server, and monitor platform health using Kibana and Grafana to help maintain 99.9% uptime.

Previously, I reduced incident rates by 79% through root cause analysis and preventive fixes, and supported data migration validation that improved transmission accuracy by 86%. I’ve also contributed to Oracle FCCM implementation and coordinated vulnerability remediation across regulatory platforms.

Experience

Work history, roles, and key accomplishments

Current

Application Support Lead

Current

Access Bank Plc

Apr 2025 - Present (1 year 6 months)

Queried Oracle and SQL Server databases to investigate application behavior and resolve transaction incidents across 30+ business-critical platforms. Served as senior escalation point for complex production incidents, coordinating root cause analysis and remediation to maintain 99.9% uptime.

SQL Oracle Database SQL Server REST APIs Postman JSON Kibana Grafana Metabase Root Cause Analysis Incident Management Technical Documentation Vendor coordination

Application Support Analyst

Access Bank Plc

Jul 2020 - Mar 2025 (4 years 8 months)

Performed SQL analysis and query tuning to troubleshoot database-intensive application issues, improving system performance by 91%. Resolved L2/L3 support issues across Linux servers, Oracle databases, and banking applications, reducing incident rates by 79%.

SQL Oracle Database SQL Server Linux Root Cause Analysis Technical Documentation Data Migration Swift FINTRAK Vulnerability Remediation Customer Satisfaction

Application Support Officer

Access Bank Plc

Nov 2019 - Jul 2020 (8 months)

Applied SQL analysis to assess user issues and improve troubleshooting speed, contributing to a 91% performance improvement. Designed and tested fixes for application issues, reducing repeat failures by 64%.

SQL Troubleshooting Incident Management Technical Documentation Training Risk Assessment