Gebrehiwet Biyane Welearegai
Senior Backend Developer @DoctorBox
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WORK HISTORY
Senior Backend Developer @DoctorBox
DE
Developed secure, scalable backend systems and RESTful APIs for telemedicine applications usingJava, Quarkus, JPA with Hibernate, and PostgreSQL, ensuring GDPR-compliant handlingof sensitive healthcare data with OAuth2 and JWT.• Led migration from Java EE to Quarkus, improving startup time and enabling lightweight, cloud-ready microservices using Docker, AWS S3, and CI/CD automation.• Integrated third-party healthcare systems to support e-prescription ordering, pharmacy access, andtelemedical data exchange, leveraging WebSocket, RabbitMQ, and InfluxDB, with monitoringvia Grafana and Prometheus.• Collaborated with cross-functional teams—including Android, iOS, web, and QA engineers—to ensure seamless backend integration and robust product delivery.• Committed to continuous learning with certifications in Spring Boot, Kubernetes, and DevOpsto stay aligned with modern backend development practices.
EDUCATION
Mekelle Institute of Technology (MIT), Ethiopia
Bachelor’s Degree, Electronics and Communications Engineering
Universität Passau
Doctor of Philosophy (Ph.D.), Computer Science
Universität des Saarlandes
Master’s Degree, Computer Science
ABOUT GEBREHIWET BIYANE WELEAREGAI
Senior Backend Java Developer with a PhD in Software Security, specializing in injection attack detection and secure system design. Proven expertise in building and maintaining scalable, compliant microservices using Java, Quarkus, JPA with Hibernate, PostgreSQL, and Docker, especially in privacy-critical domains like telemedicine (e.g, GDPR, Gematik TI). Led backend migrations, optimized RESTful APIs, and automated delivery with CI/CD pipelines. Eective collaborator with cross-functional teams across mobile, web, and QA. Committed to continuous learning, with certifications in Spring Boot, Kubernetes, and DevOps, delivering secure, high-performance backend solutions.
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