Application architect, Struts framework, enterprise software, complex system, multiple layers, scalable design, modular structure, Java-based technology, Spring integration, Hibernate ORM, MySQL database, Apache Tomcat server, Linux operating system, cloud deployment, virtual machine, professional attire, bespectacled man, 30s, serious facial expression, sitting in front of a desk with multiple monitors, office background with whiteboards and books, warm lighting, shallow depth of field.