Open to opportunities

John Kiragu

@johnkiragu

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Core Banking Support & Implementation Engineer at Craft Silicon Ltd, improving EOD processing from 6 hours to 3.

Kenya

Message

What I'm looking for

I’m looking to contribute my core banking and database administration experience to the stability, performance, and growth of a forward-looking financial institution while continuing to grow as a banking technology professional.

At Craft Silicon Ltd, I support and implement live core banking systems for banks and financial institutions across several countries. I optimized EOD-related stored procedures, indexes, and accrual posting logic, reducing head-office EOD processing time from approximately six hours to three.

Previously, at Octagon Data Systems Ltd, I developed and maintained enterprise business applications and optimized SQL Server queries, improving execution times by up to 40% on high-volume transactional tables. I also automated database validation and customer onboarding scripts, reducing manual processing errors by over 40%.

Experience

Work history, roles, and key accomplishments

Current

Core Banking Support & Implementation Engineer

Current

Craft Silicon Ltd

Jan 2025 - Present (1 year 9 months)

Provided L1, L2, and L3 support for core banking systems, ensuring smooth operations for banks across Africa and Europe. Performed SQL Server database support, monitored batch processes, and assisted with implementations and post go-live stabilization.

Technical Support L 1 L2 Incident Management Root Cause Analysis SQL Server database performance optimization EOD SOD EOM Batch Processes JavaScript (ES6+)REST API Integration Git GitHub Documentation

Software Engineer

Octagon Data Systems Ltd

Jun 2024 - Jan 2025 (7 months)

Designed, developed, and maintained enterprise business applications with a focus on performance and scalability. Worked extensively with SQL Server databases, optimizing stored procedures and improving query execution times by up to 40%.