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Michael Sije

@michaelsije

Database services and data engineering leader at eTranzact PLC who connected mission-critical transaction systems to real-time HDFS analytics.

Nigeria

Message

At eTranzact PLC, I lead database services and data engineering for mission-critical financial technology platforms. I lead 24/7 operations across Oracle, Microsoft SQL Server, and MySQL environments, with a focus on resilience, security, and performance.

I led the architecture and implementation of a real-time enterprise data platform connecting transaction-processing systems with HDFS-based analytics. Its CDC-driven pipelines and PySpark transformations support enterprise data warehousing while protecting OLTP workloads.

Previously, as Enterprise Database Lead at eTranzact PLC, I provided technical leadership across Oracle, Microsoft SQL Server, MySQL Enterprise, Sybase ASE, and Unix environments. I also led database-related projects and supported architecture, implementation, and production performance.

At Jetlink Nigeria Limited, I delivered enterprise technology solutions for financial institutions, including Oracle Financial and Compliance Management solutions such as Oracle Mantas. My work included Oracle RAC, database administration, performance tuning, and technical and functional project delivery.

Experience

Work history, roles, and key accomplishments

Current

Head of Database Services & Data Engineering

Current

eTranzact PLC

Aug 2025 - Present (1 year 2 months)

Lead enterprise database and data engineering capabilities supporting our mission-critical financial technology platforms and transaction-processing environments.

• Lead 24/7 database engineering and operations across enterprise Oracle, Microsoft SQL Server and MySQL environments supporting business-critical workloads.

• Manage HA/DR solutions including Oracle 19c RAC and MySQL replication, with

Current

Enterprise Database Lead

Current

eTranzact PLC

Feb 2015 - Present (11 years 8 months)

Provided technical leadership for enterprise database and Unix environments supporting large-scale, business-critical production workloads across Oracle, Microsoft SQL Server, MySQL Enterprise, and Sybase ASE.

• Led database engineering and production support activities across multiple database platforms, ensuring the availability, performance, integrity, and reliability of critical business data

Technical and Functional Consultant

Jetlink Nigeria Limited

Feb 2014 - Feb 2015 (1 year)

Project and Functional Lead

Led the technical and functional delivery of enterprise technology projects, bridging customer requirements, functional analysis, database engineering, and technology execution to deliver solutions aligned with business needs.

• Led technical delivery and database administration activities, ensuring key deliverables aligned with customer requirements and project objec

Oracle Technical Consultant

Jetlink Nigeria Limited

Apr 2012 - Feb 2015 (2 years 10 months)

Enterprise Solutions Consulting

Delivered enterprise technology solutions across West African financial institutions, with expertise spanning Anti-Money Laundering (AML) and Fraud Analytics, Oracle database engineering, and enterprise infrastructure. Implemented and supported Oracle Financial and Compliance Management solutions, including Oracle Mantas, scenario and alert customization, performan

Head, Technical - Database and Enterprise Solutions

Firstlogic

Nov 2007 - Mar 2012 (4 years 4 months)

Accountable for high end capacity building/IT Training for client, maintaining clients’ database configurations in compliance with established best practices, performing environment builds and refreshes for cooperate IT training including technical environment evaluation for private and cooperate IT capacity building for financial service companies, public sectors and government agencies.