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Hi, I’m Arinze Umunnah. I’m a seasoned backend and full-stack developer with a track record of architecting and delivering scalable software platforms. I’ve led cross-functional teams in remote settings and driven architectural modernization, reducing bottlenecks and boosting throughput in fintech and HR tech domains. I’m passionate about mentoring engineers, enforcing strong code quality, and building robust systems that scale.…Hi, I’m Arinze Umunnah. I’m a seasoned backend and full-stack developer with a track record of architecting and delivering scalable software platforms. I’ve led cross-functional teams in remote settings and driven architectural modernization, reducing bottlenecks and boosting throughput in fintech and HR tech domains. I’m passionate about mentoring engineers, enforcing strong code quality, and building robust systems that scale.

Arinze Umunnah

Back-End Developer, Full Stack Developer, Web Developer, +2

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Hi, I’m Arinze Umunnah. I’m a seasoned backend and full-stack developer with a track record of architecting and delivering scalable software platforms. I’ve led cross-functional teams in remote settings and driven architectural modernization, reducing bottlenecks and boosting throughput in fintech and HR tech domains. I’m passionate about mentoring engineers, enforcing strong code quality, and building robust systems that scale.…Hi, I’m Arinze Umunnah. I’m a seasoned backend and full-stack developer with a track record of architecting and delivering scalable software platforms. I’ve led cross-functional teams in remote settings and driven architectural modernization, reducing bottlenecks and boosting throughput in fintech and HR tech domains. I’m passionate about mentoring engineers, enforcing strong code quality, and building robust systems that scale.

Available to hire

Hi, I’m Arinze Umunnah. I’m a seasoned backend and full-stack developer with a track record of architecting and delivering scalable software platforms. I’ve led cross-functional teams in remote settings and driven architectural modernization, reducing bottlenecks and boosting throughput in fintech and HR tech domains. I’m passionate about mentoring engineers, enforcing strong code quality, and building robust systems that scale.

Skills

Experience Level

Expert

Expert

Expert

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Expert

Work Experience

Technical Lead at SeamlessHR

November 1, 2023 - Present

Architected and deployed a scalable microservices ecosystem that increased system throughput by 70% by decomposing core HR and Time Management modules using Node.js, TypeScript, and Docker to deliver containerized, robust solutions for HR tech workflows.

Senior Backend Developer at SeamlessHR

May 1, 2021 - November 1, 2023

Led cross-functional teams, enforced code quality through rigorous code reviews and unit testing, and drove architectural modernization to improve maintainability and delivery velocity for backend services written in PHP, Node.js, and TypeScript.

Software Engineer at Edoco

July 1, 2019 - April 1, 2021

Led significant modernization of legacy microservices, updating to latest framework versions, resulting in enhanced system performance and stability. Developed and launched 6+ end-to-end microservices that supported a 30% increase in transaction volume using Symfony, Laravel, and Vue.js for fintech and legal clients.

Full Stack Engineer at Mentap Solutions

January 1, 2019 - June 1, 2019

Oversaw a complete technical overhaul of a legacy CRM web application, significantly enhancing query performance and improving the overall UI. Developed and optimized databases to support various web applications and sites in Hospitality and Marketplace sectors. Created and maintained 6 high-traffic websites, contributing to a 38% improvement in user retention by leveraging diverse technologies and automated content production systems.

Head of Engineering / Senior Software Engineer at Imageslate Solutions

January 1, 2017 - December 31, 2017

Led modernization efforts and architectural improvements, aligning engineering practices with product goals. Managed a team of engineers to deliver high-quality software, contributing to improved system reliability and delivery speed.