Open to opportunities

Abdulqudus Jimoh

@abdulqudusjimoh

Fintech integration and routing support engineer improving transaction stability, APIs, and deployment continuity in high-volume payments.

Nigeria

Message

What I'm looking for

I want to work in fintech/payments where I can validate APIs, troubleshoot transaction flows, and support deployments that improve stability, uptime, and operational efficiency—partnering with engineering to resolve issues fast and ship reliably.

I’m a fintech integration and support professional with over six years of experience across payment systems, API integrations, transaction routing and switching operations in high-volume financial environments. I focus on validating APIs, tracing transaction lifecycles, troubleshooting flows, and resolving payment issues across core service layers.

At Flutterwave, I serve as a technical liaison for routing and switching integrations, validate and troubleshoot REST APIs across middleware and proxy services, and trace routing inconsistencies, response-mapping gaps, and configuration issues. I also support deployment activities to improve release coordination and reduce service disruption, helping drive faster issue resolution and stronger transaction stability.

Previously at Moniepoint, I worked on secure API endpoints and authentication for transaction processing, contributed switching logic with Spring Boot, and supported event-driven processing with Kafka. I helped reduce transaction failure rates by 25%, improve processing speed by 30%, and support a switching platform with 99.9% uptime across multiple financial institutions.

Experience

Work history, roles, and key accomplishments

Current

Integration Support Engineer

Current

Flutterwave

Feb 2025 - Present (1 year 5 months)

Serves as a technical liaison for payment routing and switching integrations, validating and troubleshooting REST APIs across middleware and proxy services. Traces transaction lifecycles to identify routing inconsistencies and supports deployments to improve release coordination and reduce service disruption.

Payment Routing Middleware Routing Inconsistency Analysis Deployment

Backend Engineer

Moniepoint Inc.

Dec 2023 - Jul 2024 (7 months)

Worked on secure API endpoints and authentication mechanisms supporting financial transaction processing. Contributed to switching logic using Spring Boot with Kafka event-driven processing, and supported database schema updates with Liquibase and Cosmos DB.

Authentication Spring Boot Kafka Event Processing Backend Switching Logic Liquibase Cosmos Data Integrity

Project Implementation Engineer

Interswitch

Sep 2022 - Dec 2023 (1 year 3 months)

Deployed Linux-based and Android-based payment applications for over 50 microfinance banks, including cross-border implementations. Customized POS transaction interfaces using Kotlin and XML and performed real-time transaction diagnostics to maintain operational continuity.

Kotlin XML

Junior Software Developer

Xpress Payment Solutions Limited

Jul 2021 - Sep 2021 (2 months)

Contributed to development of the company payment gateway using C# and .NET. Supported backend API and transaction-handling logic for secure financial integrations and collaborated with frontend engineers to support system functionality.

C#.NET Payment Gateway Development Backend Engineering Transaction Support

Technical Support Engineer

Accelerex

Apr 2019 - Aug 2019 (4 months)

Provided technical support for POS systems, troubleshooting hardware and software issues to maintain service continuity. Worked with engineering teams to improve testing coverage and support deployment validation for new POS solutions.

POS Technical Support Test Coverage Operational Support