AgileEngine is seeking a Senior Java Engineer to build scalable, secure server-side solutions and a reusable client integration system for a mission-critical SaaS platform. You will collaborate with design and product teams to plan sprints, estimate work, and hit delivery timelines. The role requires 5+ years SaaS experience, expertise in Java and SQL, and knowledge of microservices, observability, and CI/CD practices. Fluent English is expected, with versátil remote/onsite options.