Systems & Database Administrator

IKH Group is a leading Software & Robotics Solutions group of companies operating internationally. Within just a couple of years, our team grew up more than 80% and we kicked off 2025 with several new and exciting projects in digital transformation, custom software and robotics.

Blend Technologies, part of IKH Group, is a brand-new Technology and Innovation solutions company, made by people who breathe and live technology, bringing bespoke services and solutions to drive the new Industry 4.0 era and holding a profound comprehension of the technologies shaping the future, Cloud, Cyber Security and AI.

By joining this role, you'll be part of the z/Series Mainframe DBA team and you will be responsible for managing the database infrastructure that supports the Bank's operations. This position requires a professional with substantial experience and expertise in handling complex and sensitive database systems.

Your key responsibilities will be:

• Install, configure, and upgrade IBM DB2 database systems on the zOS platform to meet the Bank's requirements.
• Proactively monitor and manage DB2 database performance, capacity, and health to ensure optimal functionality and availability.
• Identify and resolve performance bottlenecks through SQL query optimization, database configuration tuning, and the effective use of performance monitoring tools.
• Design, implement, and regularly test robust backup, recovery, and disaster recovery plans to safeguard the bank's critical data and ensure business continuity.
• Collaborate effectively with application development teams to provide expert database support for new and existing banking applications, ensuring seamless integration and optimal performance.
• Participate actively in internal and external audits and compliance checks related to database security and operational procedures, providing necessary information and demonstrating adherence to requirements.

• 5+ years hands-on experience as a DB2 for zOS Database Administrator in a complex IT environment, preferably within the banking or financial services industry.
• Extensive knowledge of IBM DB2 for zOS architecture, internals, and components.
• Proficient skills in the use of a wide range of DB2 utilities for database maintenance, backup, recovery, and performance management.
• Exceptional SQL skills, including the ability to write complex and efficient queries and perform advanced SQL performance tuning.
• Strong experience with DB2 performance monitoring and tuning tools such as IBM OMEGAMON, BMC Mainview, or Broadcom/CA tools.
• Comprehensive understanding of DB2 security features and proven ability to implement and manage them effectively.
• Significant experience in designing, implementing, and testing backup and recovery strategies for IBM DB2 for zOS in a high-availability environment.
• Solid working knowledge of the zOS operating system, including commands, utilities, system parameters and subsystems such as DFSMS, CICS and MQ.
• Practical experience with JCL (Job Control Language) for managing batch processing and automating database tasks.
• Familiarity with TSO/ISPF for interacting with the mainframe environment.
• Candidates should possess a Bachelor's degree, preferably with postgraduate qualifications, in Computer Science or a related quantitative discipline.
• Relevant IBM DB2 certifications.
• Fluency in English and Greek languages.
• Excellent analytical and problem-solving skills for efficient issue resolution
• Strong interpersonal and communication skills, collaborative spirit, agility, and can-do attitude.

• An attractive salary package
• Career development and growth opportunities
• An amazing private & open-office workspace in Athens
• Continuous training via personalized seminars
• Stable and enjoyable working environment
• Flexible hybrid working model, adjusted to your needs