Java Developer

About the Role We are seeking Mid-Level Backend Developers to support CCDI operations and development. This role involves CI/CD management, MSA-based deployments, backend development, data processing, Kafka-based event streaming, and database integration/migration work. Strong English communication skills are required. Must be Bilingual in Korean/English Responsibilities Manage and operate CI/CD pipelines (Kubernetes, MSA deployment & release management) CCDI core backend development and system enhancements Backend development using Java / Python Database integration with PG, Oracle, MongoDB, and Redis Kafka event streaming (consumer/producer development and optimization) MongoDB batch processing (data deletion, legacy data migration) Support EAI and database migration (BLODS, PKTMS, TODS) Support Informatica migration activities Provide production on-call support (average 10.8 hours/day operational coverage) System monitoring, incident response, and KUS VOC support Code review and QA governance Additional system integration/support tasks (MQTT, ISS, JP, etc.) Qualifications Experience in Java / Python development Experience with Oracle, MongoDB, Redis, and PG database integration Experience with Kubernetes and CI/CD environments Experience with MSA-based systems Backend development and production support experience Strong English communication skills (required) Preferred Skills Experience in large-scale enterprise system operations Experience with database or legacy system migration Experience with Kafka-based event streaming Experience with EAI or Informatica migration Experience in production support or 24/7 environments