Tsion Alemayehu

I’m a Senior Full Stack Software Engineer with over 10 years of diverse experience designing, developing, and maintaining enterprise-grade applications across health, SaaS marketplaces, and procurement. I modernize legacy systems into cloud-first platforms and focus on reliability, usability, and measurable engineering quality. Most recently, I helped modernize a critical procurement management system by transitioning a legacy desktop application into a cloud-first web platform. Using Angular 13 and .NET Core 6, I built key modules, designed robust backend APIs, implemented secure Azure AD authentication for SSO, and created a data migration pipeline that enabled Power BI integrations. As a Backend Team Lead for a SaaS gig economy marketplace, I spearheaded a multi-tenant, modular backend architecture with Node.js and .NET, implementing microservices with Dapr and orchestration with Kubernetes. I streamlined CI/CD using ArgoCD and GitOps workflows, mentored and managed backend developers, and drove strong testing discipline—achieving over 70% unit test coverage.