Open to opportunities

Lucky Kayan

@luckykayan

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Senior backend developer specializing in .NET, cloud solutions, and high-throughput payment systems.

Nigeria

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What I'm looking for

I seek senior backend roles in FinTech or banking where I can lead teams, architect scalable payment systems, and drive secure cloud-native deployments.

I am a Senior Backend Developer with over six years' experience building enterprise solutions for FinTech and banking using .NET, Angular, and cloud technologies. I focus on designing robust APIs, microservices, and scalable payment systems that meet regulatory and performance demands.

At MTN Nigeria I led teams delivering a national payment gateway, merchant onboarding, fraud detection, card authorization, and dispute resolution services while ensuring PCI-DSS compliance. I optimized high-throughput payment flows with PostgreSQL and Kafka to improve latency and reliability.

Previously, I upgraded and developed core banking services at FCMB and First Bank, including payment services, account opening APIs, direct debit instruction integration, and user management applications, primarily using .NET 6/8 and MSSQL. I automated deployments with Azure DevOps CI/CD and leveraged Docker, Redis, and other tools to support production-grade systems.

I hold Microsoft Azure certifications and a B.Sc. from Obafemi Awolowo University. I bring a disciplined, results-driven approach to team leadership, system architecture, and delivering secure, maintainable solutions for financial services.

Experience

Work history, roles, and key accomplishments

Senior Backend Developer

MTN Nigeria

Jan 2024 - Mar 2025 (1 year 2 months)

Led teams to deliver the NPG payment gateway, building merchant onboarding, KYC, card authorization, settlement, refund and dispute modules while implementing real-time fraud detection and optimizing high-throughput flows.

C++.NET Core PostgreSQL Kafka APIs Microservices Azure Docker

Senior Backend Developer

FCMB

Feb 2023 - Jan 2025 (1 year 11 months)

Upgraded and built multiple bank services using .NET 6/8 including Dangote ISOP, Remita integration, account opening, direct debit instruction and visitor management, improving payment processing and feature delivery.

C++.NET 8+APIs MSSQL NIBSS NDD Remita Integration Microservices Azure

Backend Developer

First Bank of Nigeria

Sep 2022 - Jan 2023 (4 months)

Developed User Management and maintained E-Bills services using .NET Core, Angular and MSSQL, delivering backend features for internet and mobile banking channels.

C++.NET Core Angular MSSQL APIs Backend Development Web Services Entity Framework SQL

Software Developer

Infracredit

Mar 2021 - Aug 2022 (1 year 5 months)

Maintained and enhanced Credit Risk 360 reports, built loan origination and customer management modules for SME digital lending and digital banking solutions using .NET Core, Angular and relational databases.