Total 2 job vacancies by Woori Bank

Job Responsibilities:

• Manage, operate, and troubleshoot Linux/Unix and Windows server environments.
  Perform OS hardening, patching, and configuration updates according to security standards.
• Monitor system performance, capacity, and availability.
• Support core banking and enterprise applications hosted on on-premises or virtualized platforms.
• Work with global IT teams to ensure compliance with security and audit requirements.
• Participate in DR/BCP planning, testing, and implementation.
• Maintain documentation for infrastructure configurations and operational procedures.
• Assist in infrastructure architecture review and ensure alignment with overall system design and standards.

Requirements:

• Degree/Diploma in Computer Science, Information Technology, or related field.
• 3~5+ years of experience in Linux/Unix/Windows server administration.
• Hands-on experience with VMware, Hyper-V, or other virtualization technologies.
• Knowledge of shell scripting or automation tools (Bash, PowerShell, Python).
• Basic understanding of IT infrastructure architecture (OS, Network, Database, Middleware interactions).
• Experience in banking/financial sector is an advantage.
• Strong analytical and problem-solving skills.
• Proficiency in Korean is preferred.
• Willingness to travel frequently within Southeast Asia (Indonesia, Vietnam, Cambodia).

Job Responsibilities:

• Provide end-to-end troubleshooting across application, middleware, and database layers in multi-tier environments.
• Analyze and resolve performance issues related to application, middleware (WAS), and database interactions.
• Support core banking and enterprise systems across Indonesia, Vietnam, and Cambodia entities.
• Review system architecture and identify gaps in integration, performance, and scalability.
• Work closely with vendors and local IT teams to drive issue resolution and ensure service stability.
• Monitor system health, batch processes, and interface operations (API, ETL, etc.).
• Support and validate DR/BCP architecture, including backup and recovery processes.
• Participate in infrastructure and application deployment, migration, and integration activities.
• Maintain technical documentation for system architecture, troubleshooting procedures, and operational standards.

Requirements:

• Degree/Diploma in Computer Science, Information Technology, or related field.
• 3~5+ years of experience in IT infrastructure, application support, or system engineering roles.
• Hands-on experience in both database and middleware environments.
• Experience with SQL, query tuning, indexing, and locking mechanisms in RDBMS (e.g., Oracle, MS SQL).
• Experience with Web Application Servers (e.g., WebLogic, Tomcat, JBoss) and understanding of thread management and connection pooling.
• Strong understanding of end-to-end system flow (Web → WAS → DB → Batch).
• Experience in API, batch processing, ETL, or system integration.
• Basic understanding of network concepts (HTTP/HTTPS, latency, connectivity issues).
• Proven experience in performance troubleshooting and root cause analysis across multiple layers.
• Ability to work with cross-functional teams and external vendors.
• Experience in banking or financial services is an advantage.
• Basic understanding of IT infrastructure architecture is preferred.
• Proficiency in Korean is preferred.
• Willingness to travel frequently within Southeast Asia (Indonesia, Vietnam, Cambodia).