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 enhancementsBackend development using Java / PythonDatabase integration with PG, Oracle, MongoDB, and RedisKafka 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 activitiesProvide production on-call support (average 10.8 hours/day operational coverage)System monitoring, incident response, and KUS VOC supportCode review and QA governanceAdditional system integration/support tasks (MQTT, ISS, JP, etc.) Qualifications Experience in Java / Python developmentExperience with Oracle, MongoDB, Redis, and PG database integrationExperience with Kubernetes and CI/CD environmentsExperience with MSA-based systemsBackend development and production support experienceStrong English communication skills (required) Preferred Skills Experience in large-scale enterprise system operationsExperience with database or legacy system migrationExperience with Kafka-based event streamingExperience with EAI or Informatica migrationExperience in production support or 24/7 environments