Nahimana Theoneste

I am a versatile Full-Stack Software Developer and Microsoft 365 Technical Lead with hands-on experience building web and cross-platform mobile applications using Laravel, React, and Flutter. I combine practical development skills with cloud knowledge across AWS, Azure, and Google Cloud to deliver end-to-end solutions.

In technical support and leadership roles, I developed a customer-centric troubleshooting methodology that achieved 80% faster issue resolution and maintained a 100% customer satisfaction rate. I diagnose and resolve complex Microsoft 365 issues across Exchange Online, SharePoint, Teams, and Azure AD, and I build automation to improve operational efficiency.

I have modernized legacy systems, refactored codebases, and integrated payment gateways for secure transactions, resulting in reduced operating costs and improved functionality. I also engineered automated diagnostics for sensor data processing using Python to enhance operational accuracy.

I mentor junior engineers and foster cross-functional collaboration, having guided five junior engineers to achieve faster issue resolution and stronger team capabilities. I am committed to delivering reliable, maintainable software and strong technical leadership.