與各Web系統與服務的開發。 Align application design with business goals. Design and implement front-end and back-end Java-based service. Provide web-based system maintenance and enhancements. Design, build, and maintain efficient, reusable, and reliable Java code. Plan and execute all deployments of system features and monitor them for successful integration, maintaining the system throughout its lifecycle. **USD 2,500-3,000 depends on skill and experienc