Open to opportunities

Henry Adagba

@henryadagba

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Backend-focused software engineer specializing in Java, RESTful APIs, and scalable microservices.

Nigeria

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What I'm looking for

I am looking for backend or platform roles where I can build scalable APIs and microservices, work in Agile teams, solve integration challenges, and continue learning modern cloud-native technologies.

I am a backend-focused software engineer with strong experience in Java and building RESTful APIs, delivering scalable and maintainable solutions in Agile environments.

At PalmPay I developed and integrated multiple Java/Spring Boot APIs and SPIs to support payments, flight bookings, airtime, data, and gift cards, expanding product offerings and improving financial experiences for users.

I have built microservice-based backends, implemented security with JWT and RSA signatures, and optimized performance through caching, database tuning, and asynchronous messaging to ensure reliability and scalability.

I enjoy troubleshooting integrations, supporting merchants, and continuously learning new technologies to tackle real-world challenges and drive product adoption.

Experience

Work history, roles, and key accomplishments

Current

Software Engineer

Current

PalmPay

Nov 2023 - Present (1 year 10 months)

Developed and integrated Java/Spring Boot APIs and SPIs for payments, flight bookings, airtime, data and gift card services, expanding product offerings by 90% and improving latency via caching and DB optimizations; built a PHP SDK and WooCommerce plugin, increasing merchant adoption by 15% and supporting 50+ merchants with integrations.

Java Spring Boot RESTful APIs Caching WooCommerce Performance Optimization

Backend Developer

ALX

Jun 2023 - Sep 2023 (3 months)

Built Node.js/Express backend for budget data processing including RESTful CRUD APIs, MongoDB integration, and JWT authentication to secure sessions and manage financial data within Agile delivery.

Node MongoDB RESTful APIs JWT Git Agile Backend Development

Education

Degrees, certifications, and relevant coursework

University of Ibadan

Bachelor of Engineering, Electrical and Electronic Engineering

2017 - 2023

Bachelor's in Engineering with a major in Electrical and Electronic Engineering completed at the University of Ibadan from February 2017 to July 2023.