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As a Database Administrator, you will be a key member of our Technical Support Division, ensuring the high availability, security, and performance of our critical database systems. You will support and optimize MS SQL Server and Oracle databases, used by real-time payment services and financial infrastructure with nationwide impact. This role requires deep technical expertise, analytical thinking, and a commitment to operational excellence, within a high-performance and regulated environment.&nbsp;Responsibilities<ul><li>Database Administration: Ensure the reliable and efficient operation of mission-critical MS SQL Server and Oracle databases across production and non-production environments, supporting high-volume financial transactions with strict availability requirements.</li><li>Performance Optimization: Proactively analyze and fine-tune SQL queries, indexes, and overall database configurations, aiming for continuous performance enhancement and optimal resource utilization.</li><li>Automation &amp; Monitoring: Design, implement, and maintain automated workflows, scheduled jobs, and real-time monitoring tools that safeguard database health and contribute to operational resilience.</li><li>Backup &amp; Recovery: Develop and oversee robust backup, restore, high availability and disaster recovery processes to guarantee data integrity and business continuity, aligned with regulatory and internal RTO/RPO objectives.</li><li>Security &amp; Compliance: Apply security best practices, manage roles and access controls, and ensure all database environments meet compliance standards such as ISO 27001, GDPR, and CIS benchmarks.</li><li>Real-Time Troubleshooting: Rapidly identify, diagnose, and resolve performance issues or disruptions, ensuring real-time availability and reliability of critical services and payment infrastructures.</li></ul>Position Requirements<ul><li>Bachelor’s degree in Computer Science, Information Technology, or related field</li><li>Minimum 4 years of professional experience as a Database Administrator (DBA) working with MS SQL &amp; Oracle</li><li>Strong experience in query optimization, indexing, and database performance tuning</li><li>Hands-on experience with backup mechanisms, high availability, and disaster recovery strategies using MS SQL FCI and SQL Always ON</li><li>Solid understanding of database security best practices, global security standards and access control (ISO 27001, CIS, etc)</li><li>Experience in monitoring, alerting, and automation of database operations</li><li>Familiarity with cloud platforms (AWS, Azure, Google Cloud) and modern deployment models</li><li>Excellent command of the English language, both written and oral</li></ul>Required Knowledge, Skills, and Abilities<ul><li>Strong problem-solving and root cause analysis skills</li><li>Attention to detail and a mindset for high-quality, secure operations</li><li>Effective communication of technical concepts to non-technical stakeholders</li><li>Ability to work both independently and collaboratively in cross-functional teams</li><li>Familiarity with agile environments and continuous delivery pipelines is a plus</li></ul>Will be considered a plus<ul><li>Operating Systems: Hands-on experience with Windows Server operating systems, particularly in database hosting and administration environments</li><li>Other Databases: Working knowledge of PostgreSQL or similar relational database systems, demonstrating flexibility in managing diverse database technologies</li><li>Cloud Technologies: Familiarity with cloud-based database services (e.g. AWS RDS, Azure SQL, Google Cloud SQL), including migration, deployment, and monitoring of cloud-native or hybrid architectures</li><li>Data Warehouse: Experience in designing and maintaining data warehouse structures and processes to support historical data retention and business intelligence reporting</li><li>Real-Time Analytics: Ability to work with tools and platforms supporting real-time analytics, streaming data processing, or time-sensitive reporting use cases</li></ul>Why Would You Enjoy Working with Us?As a member of our team:<ul><li>You will be part of a mission-critical fintech company that plays a central role in digital payments in Greece</li><li>You will experience a work environment built on meritocracy, transparency, and recognition</li><li>You will participate in trainings, seminars, and certifications to continually enhance your technical and professional development</li><li>You will gain exposure to cutting-edge technologies, while working in one of the most critical infrastructure environments in the country</li></ul>What We Offer<ul><li>Competitive remuneration package</li><li>Private health &amp; life insurance plan for you and your family</li><li>Children allowances</li><li>Meal benefits</li><li>Hybrid working model</li><li>Training &amp; development opportunities</li><li>A stable, positive, and inclusive work environment</li></ul>

Database Administrator

As a Security Engineer, you will join our highly skilled information security team with the mission to deliver high-quality, innovative cyber security services and solutions that reduce risk across the organization. In this role, you will receive structured mentoring, hands-on training, and exposure to enterprise-grade security technologies, building a solid foundation for a career in cybersecurity. You will gradually gain practical experience and deepen your technical expertise in multiple areas, such as network security, platform security, authentication/authorization systems, application security, and security frameworks. To succeed, you’ll need to demonstrate accountability, high motivation, a proactive attitude and a passion for rapid development in a challenging and regulated working environment.Responsibilities<ul><li>Contribute to building and maintaining the technical IT / cybersecurity capabilities necessary for safeguarding DIAS’s information systems and applications.</li><li>Support the administration of security-focused systems, such as data center firewalls, web application firewalls, database firewalls, hardware security modules, privileged access management, SMTP gateways, and managed PKI.</li><li>Assist in implementing security practices and tools throughout the Software Development Life Cycle (SDLC) / DevSecOps.</li><li>Explore and assess innovative technologies to solve daily cybersecurity challenges efficiently.</li><li>Perform vulnerability assessments to identify technical weaknesses.</li><li>Assist in the security risk analysis for current and new systems and recommend solutions for reducing exposure areas.</li><li>Contribute to audit preparation and compliance-related activities.</li><li>Assist in the creation of security processes, procedures, and performance metrics.</li><li>&nbsp;Work closely with other technical and operational teams to ensure effective security integration.</li></ul>Requirements<ul><li>Degree (or in the process of obtaining) in Computer Science, Mathematics, Physics, or a related field.</li><li>Knowledge of at least one programming language (Python preferred) for writing automation frameworks and relevant security tools</li><li>Understanding of Windows and Linux operating systems.</li><li>Passion for continuous learning and growth in cyber security</li><li>Good command of the English Language both written and oral</li><li>Excellent communication and interpersonal skills</li><li>Ability to work collaboratively in a team and independently when required</li></ul>Will be considered a plus:<ul><li>Certifications in Cybersecurity, Programming, or Linux administration.</li><li>Familiarity with enterprise security tools and frameworks.</li></ul>Why would you enjoy working with us ?As member of our team:<ul><li>You will work in a mission-critical fintech company shaping the future of digital payments in Greece.</li><li>You will experience a workplace built on meritocracy, transparency, and recognition.</li><li>You will receive mentoring, specialized training, and certifications to boost your career development.</li><li>You will work with cutting-edge security technologies in a regulated financial environment.</li></ul>What we offer:<ul><li>Strong mentoring and guidance</li><li>Competitive remuneration package</li><li>Private health &amp; life insurance plan for you and your family</li><li>Children allowances</li><li>Meal benefits</li><li>Hybrid working model</li><li>Training &amp; development opportunities</li><li>A stable, positive and supportive working environment</li></ul>

Security Engineer

You will be part of the IT infrastructure engineering team that is responsible for designing and developing scalable, maintainable, highly available system architectures that meet business objectives and SLAs.&nbsp;Responsibilities:&nbsp;<ul><li>Support and maintain On-Prem and Azure infrastructure</li><li>Demonstrate expert knowledge of Virtualization and Cluster administration (Vmware and Hyper-V) as well as Azure Technologies including Azure Virtual Machines, Azure Virtual Networking, Azure Monitoring, Azure Arc.</li><li>Enterprise directory and identity solutions (Active Directory, AzureAD , Azure Authentication, Single sign-on, MFA, identity management)</li><li>Demonstrate in Depth understanding and experience of the Office 365 Platform</li><li>Administer, deploy and support MS Defender, Bitlocker, MDM via Microsoft inTune</li><li>Manage centralized administration and integration of central infrastructure and endpoint services such as Antivirus, OS deployment, software installation, inventory, patching and routine maintenance.</li><li>Evaluate existing systems and provide technical direction to IT support staff</li><li>Participate in capacity planning for IT infrastructure</li><li>Plan ahead for necessary hardware or software upgrades to support system growth</li><li>Manage and maintain critical infrastructure, such as Storages, NAS, Hosts</li><li>Manage user accounts and assets, assign and update security restrictions on the network according to&nbsp;security policies</li></ul>Qualifications:&nbsp;<ul><li>Bachelor’s degree in Information Technology is preferred, or a combination of education, training and experience to provide the required knowledge, skills, and abilities</li><li>5+ years of experience in IT engineering with Microsoft technologies and 3+ years of experience in Azure cloud environments</li><li>Proven expertise and experience in administering MS HyperV and VmWare Clusters</li><li>Hands-on experience architecting and deploying Microsoft Azure environments, including hybrid scenarios, optimizing cost/capacity ratios, proper monitoring, scaling, implementing, and validating database &amp; DR scenarios</li><li>Technical expertise in Azure infrastructure support, including networking, virtualization, identity, security, and storage</li><li>Strong knowledge on HP and Dell Servers, Storages and SAN Switches</li><li>Basic Network Switching and Firewalls understanding</li><li>Zerto DR Solutions and/ or Veeam Backup and Replication knowledge is a plus</li><li>SQL Server in HA (Availability Zones) and Load Balancers knowledge is a plus</li><li>Basic Knowledge of a factory – production facility infrastructure with IT and OT environment (Perdue model) is a plus</li><li>Experience with configuration management technologies such as PowerShell, Azure CLI, and ARM Templates</li><li>Good Knowledge of Security Best Practices</li><li>Experience working within a compliance environment desirable. Familiarity with ISO 27001 is a plus</li><li>Server Administration and Virtualization Certifications such as MCSA, MCSE, MCITP will be highly appreciated</li><li>Cloud Computing Certifications like AZ-104, AZ-801, MD-101 is a plus</li><li>Excellent English communication skills</li><li>Advanced organizational and communication skills, coupled with the ability to manage projects of varying length</li><li>Ability to multi-task and adapt to changes quickly</li><li>Ability to work in a team and communicate effectively</li></ul>The Company Offers:&nbsp;<ul><li>Α unique opportunity to thrive in one of the pioneering companies in cable manufacturing</li><li>Competitive remuneration package</li><li>Life &amp; Health lnsurance Plan</li><li>Additional Bonus, based on results</li></ul>

IT SYSTEMS & CLOUD ENGINEER (3183)

A Senior Digital Transformation Systems Engineer will play a key part in modernizing and maintaining our IT infrastructure, supporting digital transformation initiatives, and enabling seamless implementation of enterprise applications.He will collaborate closely with developers and functional teams to support application deployment, ERP systems (including SAP Basis), and cloud integration, ensuring system reliability, scalability, and performance across the organization.&nbsp;&nbsp;Responsibilities<ul><li>Design, implement, maintain, monitor, and optimize enterprise IT infrastructure and digital platforms.</li><li>Support and administer ERP systems (particularly SAP Basis) and ensure system availability, security, and optimal performance.</li><li>Collaborate with developers to support application deployment, integration, and performance tuning.</li><li>Participate in cloud migration and modernization projects aligned with the company’s digital transformation goals.</li><li>Evaluate, recommend, and integrate new technologies to enhance efficiency and automation.</li><li>Implement DevOps and CI/CD practices, including infrastructure as code where applicable.</li><li>Ability to design and implement automation, monitoring and reporting solutions (MS PowerShell, Python, Bash, MS Graph, MS Power Platform, Active Directory, Entra ID).</li><li>Ensure system security, data protection, and compliance with IT governance standards.</li><li>Strong expertise in Windows and Linux systems administration.</li><li>Experience with containerization, virtualization (Microsoft Hyper-V &amp; VMWare ESXi) and cloud platforms (Azure, AWS, or GCP).</li><li>Excellent understanding of networking, security, and storage technologies.</li><li>Provide mentorship, technical leadership, and troubleshooting support to IT and application teams.</li><li>Provide 2nd level support.</li><li>Participate in infrastructure upgrades, monitoring setup, and incident resolution.</li><li>Performs configuration management and disaster recovery tasks on a new environment.</li></ul>&nbsp;Qualifications&nbsp;<ul><li>Bachelor’s degree in Computer Science, Information Technology, or a related field (Master’s preferred).</li><li>5+ years of experience in systems engineering, infrastructure management, or DevOps environments.</li><li>Solid experience with ERP systems administration, ideally SAP Basis (installation, upgrades, performance monitoring, and troubleshooting).</li><li>Strong knowledge of Windows and/or Linux server environments.</li><li>Experience with cloud platforms (Azure, AWS, or GCP) and virtualization technologies.</li><li>Familiarity with CI/CD tools (GitHub Actions, Azure DevOps) and containerization (e.g., Docker, Kubernetes).</li><li>Good understanding of networking, security, storage, and backup technologies.</li><li>Proven ability to collaborate with cross-functional teams, including developers and ERP specialists.</li><li>Excellent analytical, problem-solving, and communication skills.</li><li>Azure or Other related Certification(s)</li><li>Effective/clear communication</li><li>Cooperation and teamwork</li><li>Fluency in English (oral &amp; written)</li></ul>&nbsp;The Company Offers&nbsp;<ul><li>Opportunities for further development</li><li>Competitive remuneration package</li><li>Continuous Learning and development.&nbsp;</li></ul>

SENIOR DIGITAL TRANSFORMATION SYSTEMS ENGINEER (3620)

A Segregation of Duties (SoD) Engineer (sometimes called SoD Technical Analyst or SoD Engineer) is a technical and security-focused role responsible for implementing, automating, and maintaining the systems and controls that enforce segregation of duties across IT applications — particularly ERP and identity management platforms.&nbsp;Responsibilities<ul><li>IT applications Systems Configuration &amp; Implementation</li></ul><ul><li></li></ul><ul><li>Configure SoD rulesets and risk matrices in systems like Sap Erp , SAP GRC Access Control, ServiceNow and other tools.</li><li>Integrate SoD analysis tools with Identity and Access Management (IAM) platforms or ERP systems.</li><li>Automate provisioning workflows and SoD checks for user access requests.</li></ul><ul><li>SoD Rule Development &amp; Maintenance<ul><li>Translate business control requirements into technical SoD rules.</li><li>Build and maintain rule libraries that define incompatible roles and transactions.</li><li>Regularly update rulesets to reflect process or system changes.</li></ul></li><li>Monitoring &amp; Reporting<ul><li>Develop automated reports for SoD violations and mitigations.</li><li>Create dashboards for compliance tracking and audit reporting.</li><li>Support remediation efforts by identifying root causes of conflicts.</li></ul></li><li>Integration &amp; Automation<ul><li>Work with APIs, scripts, or connectors to synchronize data between IAM systems and ERPs.</li><li>Implement automated SoD checks during onboarding/offboarding processes.</li></ul></li><li>Audit &amp; Compliance Support<ul><li>Provide technical evidence and reports for internal/external audits.</li><li>Partner with auditors, compliance teams, and SoD administrators during reviews.</li></ul></li></ul>&nbsp;Qualifications<ul><li>BSc in Computer Science, Information Technology, or a related field.&nbsp;</li><li>Technical Skills: SAP, SAP GRC, ServiceNow, Azure AD, Python, PowerShell, SQL, APIs, SQL Server, Oracle DB, HANA, SOX, ISO 27001, NIST, COBIT, COSO.</li><li>Preferred qualifications:</li></ul><ul><li></li></ul><ul><li>Certification in SAP Security</li><li>CISA, CISM, or other audit/security certifications.</li><li>Experience in internal audit, IT security, or compliance functions.</li></ul>&nbsp;&nbsp;The Company Offers&nbsp;<ul><li>Opportunities for further development</li><li>Competitive remuneration package</li><li>Continuous Learning and development.</li></ul>

SEGREGATION OF DUTIES ENGINEER (3622)

A Azure &amp; Systems Senior Engineer with proven experience in datacenter environments, virtualization, and the Microsoft technology stack. The successful candidate will be responsible for maintaining and evolving our hybrid infrastructure across on-premises and cloud (Azure) platforms, ensuring performance, scalability, and security across all Corporate IT systems.&nbsp;Responsibilities<ul><li>Deploy, monitor, and optimize Azure workloads (IaaS/PaaS, Azure Arc, storage).</li><li>Administer and harden Active Directory (GPOs, OU structure, DNS/DHCP, delegation).</li><li>Implement and maintain Entra ID policies, Conditional Access, MFA, and identity protection.</li><li>Experience designing high-availability and disaster recovery solutions using Azure native services (Availability Zones, ASR, Load Balancers, Storage redundancy models)</li><li>Manage and support Intune, Autopilot, endpoint compliance, and device configuration.</li><li>Administer Microsoft 365 services (Exchange Online, Teams, SharePoint, OneDrive).</li><li>Apply and maintain the Microsoft Tiering Security Model (Tier-0 / Tier-1 / Tier-2).</li><li>Support hybrid identity and AD/Entra synchronization.</li><li>Support Windows Server and virtualization environments (Hyper-V/VMware).</li><li>Ensure endpoint and infrastructure security using Defender for Endpoint.</li></ul>&nbsp;Qualifications&nbsp;<ul><li>Bachelor’s degree in Computer Science, Information Technology, or a related field (Master’s preferred).</li><li>5+ years of experience in Systems Engineering or Infrastructure Administration.</li><li>Proven experience with Azure IaaS/PaaS, Azure Arc, Azure networking, monitoring, and hybrid environments.</li><li>Familiarity with Microsoft Tiering Security Model (Tier-0 / Tier-1 / Tier-2) and privileged access concepts.</li><li>Strong hands-on experience with Microsoft Hyper-V (clusters, storage, HA), and good understanding of VMware environments.</li><li>Experience in backup/recovery platforms</li><li>Strong experience with Azure IaaS/PaaS, Azure Arc, and Intune MDM.</li><li>Strong understanding of Windows Server 2016/2019/2022, Active Directory, and related services.</li><li>Familiarity with PowerShell scripting for automation.</li><li>Solid working knowledge of Microsoft 365 services</li><li>Good understanding of networking fundamentals (TCP/IP, VLANs, VPNs).</li><li>Azure Certifications (AZ-104, AZ-305, MS-102, SC-300) considered a plus.</li><li>Effective communication skills, teamwork mindset, and structured documentation habits.</li><li>Cooperation and teamwork</li><li>Fluency in English (oral &amp; written)</li></ul>&nbsp;The Company Offers&nbsp;<ul><li>Opportunities for further development&nbsp;</li><li>Competitive remuneration package&nbsp;</li><li>Continuous Learning and development.&nbsp;</li></ul>

AZURE & SYSTEMS SENIOR ENGINEER (3621)

A Systems Senior Engineer with proven experience in datacenter environments, virtualization, and the Microsoft technology stack. The successful candidate will be responsible for maintaining and evolving our hybrid infrastructure across on-premises and cloud (Azure) platforms, ensuring performance, scalability, and security across all Corporate IT systems.&nbsp;Responsibilities<ul><li>Implements and maintain virtualization platforms (Microsoft Hyper-V, VMware ESXi, clusters, Storages and backups).</li><li>Deploy, monitor, and optimize workloads in Microsoft Azure.</li><li>Implement and maintain Windows &amp; Linux Server environments and demonstrate strong expertise in Active Directory, DNS/DHCP, Group Policy, and File Services.</li><li>Support Microsoft Intune, Defender for Endpoint, and Azure AD / Entra ID integration.</li><li>Participate in infrastructure upgrades, monitoring setup, and incident resolution.</li><li>Collaborate with network and security teams to ensure compliance, performance, and reliability.</li><li>Performs configuration management and disaster recovery tasks on a new environment.</li><li>Provide 2nd level support.</li></ul>&nbsp;Qualifications&nbsp;<ul><li>5+ years of experience in Systems Engineering or Infrastructure Administration.</li><li>Bachelor’s degree in Computer Science, Information Technology, or a related field (Master’s preferred).</li><li>Solid knowledge of Hyper-V and/or VMware environments.</li><li>Experience in backup/recovery platforms</li><li>Experience with Azure IaaS/PaaS, Azure Arc, and Intune MDM.</li><li>Strong understanding of Windows Server 2016/2019/2022, Active Directory, and related services.</li><li>Familiarity with PowerShell scripting for automation.</li><li>Good understanding of networking fundamentals (TCP/IP, VLANs, VPNs).</li><li>Azure Certification(s)</li><li>Effective/clear communication</li><li>Cooperation and teamwork</li><li>Fluency in English (oral &amp; written)</li></ul>&nbsp;The Company Offers&nbsp;<ul><li>Opportunities for further development&nbsp;</li><li>Competitive remuneration package&nbsp;</li><li>Continuous Learning and development.&nbsp;</li></ul>&nbsp;

Job Ads Security Administrator Maroussi, Information Technology / It

database administrator

ΔΙΑΤΡΑΠΕΖΙΚΑ ΣΥΣΤΗΜΑΤΑ (ΔΙΑΣ) Α.Ε

security engineer

ΔΙΑΤΡΑΠΕΖΙΚΑ ΣΥΣΤΗΜΑΤΑ (ΔΙΑΣ) Α.Ε

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