Mid/Sr. Java Developer (CCDI Operations / Backend)

We are seeking Mid-Level Backend Developers to support CCDI operations and development., * 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.)

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, * 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 Qualifications

• 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