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We’re looking for a hands-on Lead Data Engineer to drive the development and innovation of our large-scale data platforms. You’ll lead a talented team building mission-critical data warehousing and analytics solutions, handling ETL pipelines, real-time streaming, and batch processing across multiple game franchises. Data warehousing will be a core focus, ensuring data is structured, accessible, and ready for analytics and reporting.This is a unique opportunity to lead, mentor, and code, collaborating with engineers, analysts, and data scientists to ensure highly performant, scalable, and reliable systems, while shaping best practices in data governance, DevOps, and process improvement. What you'll be getting up to:&nbsp;<ul><li>Lead the design, development, and maintenance of large-scale data warehousing and analytics solutions.</li><li>Oversee ETL processes, real-time streaming, and batch data processing across multiple game franchises.</li><li>Collaborate with engineering teams, analysts, and data scientists to ensure solutions are scalable, reliable, and high-performing.</li><li>Perform hands-on work in data ingestion, transformation, and storage, owning systems end-to-end.</li><li>Analyze datasets, extract actionable insights, and present findings to stakeholders.</li><li>Drive data governance, process improvements, and innovation, including AI/ML and advanced analytics applications.</li><li>Mentor team members and support their technical growth and career development.</li><li>Maintain robust CI/CD practices, DevOps, and system reliability.</li></ul>Skills and Experience:<ul><li>Expertise with BigQuery, Firestore, PostgreSQL, MSSQL, Python, SQL, and NoSQL databases.</li><li>Experience with streaming platforms (Kafka, NiFi, MQTT) and cloud platforms (GCP preferred).</li><li>Strong understanding of data structures, data modeling, and software architecture.</li><li>Familiarity with multi-threading, message queues, WebSockets, and CI/CD pipelines.</li><li>Hands-on experience in building high-performance, scalable, and reliable systems.</li><li>Interest in AI/ML, deep learning, or NLP is a plus.</li><li>Excellent analytical, problem-solving, and communication skills.</li></ul>Requirements: <ul><li>&nbsp;Bachelor’s degree in Computer Science or related field (or equivalent experience).</li><li>3-5 years of experience in data engineering, data warehousing, or analytics.</li><li>Proven ability to build, optimize, and maintain large-scale data systems.</li><li>Hands-on coding experience in Python and SQL.</li><li>Comfortable working in a fast-paced, delivery-oriented environment.</li><li>Self-starter with a team-oriented, collaborative mindset.</li></ul>Why Join Us?<ul><li>Work on large-scale, real-world data projects across multiple game franchises.</li><li>Lead a talented, collaborative team and shape their technical growth.</li><li>Drive innovation in AI, machine learning, and advanced analytics.</li><li>Make a real impact on the future of our data ecosystem.</li></ul>

Lead Data Engineer – Data Warehousing & Analytics

The Security Engineer will support the monitoring, analysis, and response to security incidents, contributing to the protection of critical systems managed by NTT for institutional clients. This role is ideal for individuals starting their career in cybersecurity and looking to grow in an international and highly regulated environment.Your role:<ul><li>Work with Linux, Public and Private Clouds (Azure, GCP), scripting, Elastic stack, KeyCloak, SOAR, Ansible, Docker, Grafana and others</li><li>Work primarily with systems and solutions designs in relation to various aspects of information security technologies, processes, and requirements</li><li>Research, plan and design robust security architectures for various IT infrastructures based on internationally recognized standards and best security practices</li><li>Innovative service design and development, driven by business strategy and goals</li><li>Engineering innovative systems which meet goals, requirements, SLA’s, and other quality attributes</li><li>Design systems for operational efficiency, automation, and ease of operation considering optimal cost and metering of service consumption</li><li>Assistance of technical experts within operational teams</li><li>Work closely with Project Managers and project members for delivering security into projects</li><li>Contribute to security programs for the NTTDATA clients and businesses</li><li>On Call and On Duty responsibilities&nbsp;</li></ul>We value a&nbsp;collaborative&nbsp;and&nbsp;supportive&nbsp;environment, celebrating&nbsp;curiosity&nbsp;and&nbsp;engagementWe are committed to supporting the physical, financial and emotional well-being our of employeesCareer development.&nbsp;Training path and access to learning opportunities, yearly performance reviews and a mentorship programWe believe in&nbsp;work-life balance&nbsp;and&nbsp;flexibility.&nbsp;Wear casual clothing, decide your working hours and enjoy our&nbsp;hybrid&nbsp;working modelWear casual clothing, decide your working hours and enjoy our hybrid working modelTalent Friends.&nbsp;Refer a friend and receive a&nbsp;bonus&nbsp;when they joinWe care about youHealth &amp; well-being.&nbsp;Focus on your mental health with access to a platform with certified psychologists &amp; mental health workshops. Take a break with one of our online fitness and well-being sessionsDiversity &amp; inclusion.&nbsp;We are committed to equal employment opportunities regardless of gender, gender expression and identity, sexual orientation, religion, culture, origin, disability, age, or other personal and social characteristics.&nbsp;#WeAreAllUnique&nbsp;#YouMakeUsUniquePlease let us know if you require us to accommodate any accessibility needs during the recruitment process.Benefits at NTT DATA GreeceHealth insurance for the employee and one dependent family member (100% paid by NTT DATA)Meal vouchers of 120€ per month (x12)Corporate mobile phone: subscription &amp; deviceTeleworking equipment allowanceUdemy AccountAccess to Open Up mental health service&nbsp;28 days of paid annual leave consisting of your legal holidays and compensation daysYour profile:<ul><li>Minimum of 3-5 years of experience in a similar role</li><li>Master’s or bachelor’s degree in related fields, preferably Engineering, Computer Science, Mathematics areas, with an overall minimum of 2 years of relevant experience</li><li>Proven track record of building, securing, and automating enterprise-scale infrastructure and systems</li><li>In-depth knowledge of processes, research, and performance analysis capabilities</li><li>Ansible + AWX (strong requirement)</li><li>IAM knowledge is a big plus (Organizations, Realms, Roles, etc.). Any IAM tools would do, KeyCloak would be highly appreciated.</li><li>Docker containers (Kubernetes is a plus)</li><li>Linux (pro-efficient)</li><li>Elastic components are a plus: Filebeat, Logstash</li><li>Azure: EventHub</li><li>Network &amp; VPN, build and debugging</li><li>Grafana &amp; Prometheus are a plus</li><li>Experience with parsers it’s a plus</li><li>In-depth technical knowledge within information security areas is an advantage: SIEM tools and solutions,&nbsp;Incident Response tools and solutions,&nbsp;Vulnerability Management tools and procedures,&nbsp;SOAR and EDR solutions,&nbsp;Security Threat Intelligence services</li><li>CISSP, CEH, SANS, or similar certifications represent a big plus</li><li>Highly effective written and oral communication skills, excellent interpersonal skills, and experience dealing effectively with people having different background</li><li>Fluency in Business English is required, German is an advantage</li><li>Customer-oriented behavior</li><li>Fast learner - research capabilities for obtaining required information</li><li>You must be eligible for EU Security Clearance (at least 5 years of EU nationality in required).</li></ul>﻿*This role may require flexibility, including shift-based work and on-call responsibilities, depending on operational needs.

Security Engineer

As a PostGre Database Administrator you will assist in the administration, maintenance, and optimization of PostgreSQL databases.Your&nbsp;role:<ul><li>Assist in the installation, configuration, and maintenance of PostgreSQL databases.</li><li>Monitor database performance and troubleshoot issues under supervision.</li><li>Support backup, recovery, and disaster recovery procedures.</li><li>Help implement security measures and manage user roles and permissions.</li><li>Maintain documentation of database configurations and operational procedures.</li><li>Collaborate with developers and system administrators to ensure database availability and reliability.</li><li>Participate in database upgrades, patching, and migration activities.</li></ul>Why NTT DATA?We value a collaborative and supportive environment, celebrating curiosity and engagementWe are committed to supporting the physical, financial and emotional well-being our of employeesCareer development. Training path and access to learning opportunities, yearly performance reviews and a mentorship programWe believe in&nbsp;work-life balance&nbsp;and&nbsp;flexibility. Wear casual clothing, decide your working hours and enjoy our hybrid working modelWear casual clothing, decide your working hours and enjoy our hybrid working modelTalent Friends. Refer a friend and receive a bonus when they joinWe care about youHealth &amp; well-being. Focus on your mental health with access to a platform with certified psychologists &amp; mental health workshops. Take a break with one of our online fitness and well-being sessionsDiversity &amp; inclusion. We are committed to equal employment opportunities regardless of gender, gender expression and identity, sexual orientation, religion, culture, origin, disability, age, or other personal and social characteristics. #WeAreAllUnique #YouMakeUsUniquePlease let us know if you require us to accommodate any accessibility needs during the recruitment process.Benefits at NTT DATA GreeceHealth insurance for the employee and one dependent family member (100% paid by NTT DATA)Meal vouchers of 120€ per month (x12)Corporate mobile phone: subscription &amp; deviceTeleworking equipment allowanceUdemy AccountAccess to Open Up mental health service&nbsp;28 days of paid annual leave consisting of your legal holidays and compensation daysYour&nbsp;profile:<ul><li>Bachelor’s degree in Computer Science or Information Technology.</li><li>Between&nbsp;5 and 7 years of experience&nbsp;in a similar role.</li><li>Solid understanding of relational database concepts and SQL.</li><li>Familiarity with PostgreSQL architecture and tools (psql, pgAdmin).</li><li>Knowledge of Linux/Unix environments.</li><li>Strong analytical and problem-solving skills.</li><li>Between 5 and 7 years of experience.</li><li>Good communication and teamwork abilities.</li><li>Excellent command of both spoken and written English (any other European language would be a plus).</li><li>You must be eligible for EU Security Clearance (at least 5 years of EU nationality in required).</li></ul>Nice to have:<ul><li>Exposure to replication, clustering, and high availability concepts (e.g., streaming replication, Patroni).</li><li>Experience with performance tuning and query optimization.</li><li>Knowledge of backup tools (pg_dump, pgBackRest).</li><li>Certifications such as PostgreSQL Associate or equivalent are a plus.</li></ul>*This role may require flexibility, including shift-based work and on-call responsibilities, depending on operational needs.

PostGreSQL Database Administrator

We are seeking a detail-oriented and motivated Storage Engineer to support the administration and maintenance of enterprise storage systems. This entry-level role is ideal for individuals with foundational knowledge of storage technologies who are eager to grow in a dynamic infrastructure environment.Your role:<ul><li>Ensuring IT infrastructure and systems remain operational by proactively identifying, investigating, and resolving incidents and problems.</li><li>Managing incidents to resolution, ensuring zero missed SLAs and achieving client satisfaction by building and supporting technology solutions.</li><li>Investigating technical support issues, identifying root causes to prevent recurrence.</li><li>Handling incident, problem, event, and request management, including identifying issues, developing workaround plans, and implementing resolutions within SLAs.</li><li>Managing and optimizing storage infrastructure operations, including monitoring, reporting, and implementing changes or service requests.</li><li>Documenting technical processes and providing on-call support.</li><li>Monitoring and reporting on server environments and SLAs, handling priority management, and escalating issues as needed.</li><li>Ensuring integration with other organizational teams and evolving service delivery methods and tools.</li><li>Utilizing automation tools for administration and monitoring of storage systems.</li><li>Managing block and NAS storage and integrating systems with databases, networks, backups, and virtual environments.</li><li>Configuring, maintaining, and administering SAN/NAS-based storage environments.</li><li>Performing security hardening, patches, updates, and system performance troubleshooting.</li><li>Managing Brocade Fibre Channel Directors/Switches and handling access/user administration.</li><li>Monitoring and optimizing I/O performance and creating technical documentation.</li><li>Implementing security policies, performing vulnerability assessments, and ensuring compliance with industry standards.</li><li>Managing security tools, monitoring systems, and handling escalations.</li><li>Managing hybrid cloud environments (AWS/Azure), implementing cloud security measures, optimizing resources.</li></ul>We value a&nbsp;collaborative&nbsp;and&nbsp;supportive&nbsp;environment, celebrating&nbsp;curiosity&nbsp;and&nbsp;engagementWe are committed to supporting the physical, financial and emotional well-being our of employeesCareer development.&nbsp;Training path and access to learning opportunities, yearly performance reviews and a mentorship programWe believe in&nbsp;work-life balance&nbsp;and&nbsp;flexibility.&nbsp;Wear casual clothing, decide your working hours and enjoy our&nbsp;hybrid&nbsp;working modelWear casual clothing, decide your working hours and enjoy our hybrid working modelTalent Friends.&nbsp;Refer a friend and receive a&nbsp;bonus&nbsp;when they joinWe care about youHealth &amp; well-being.&nbsp;Focus on your mental health with access to a platform with certified psychologists &amp; mental health workshops. Take a break with one of our online fitness and well-being sessionsDiversity &amp; inclusion.&nbsp;We are committed to equal employment opportunities regardless of gender, gender expression and identity, sexual orientation, religion, culture, origin, disability, age, or other personal and social characteristics.&nbsp;#WeAreAllUnique&nbsp;#YouMakeUsUniquePlease let us know if you require us to accommodate any accessibility needs during the recruitment process.Benefits at NTT DATA GreeceHealth insurance for the employee and one dependent family member (100% paid by NTT DATA)Meal vouchers of 120€ per month (x12)Corporate mobile phone: subscription &amp; deviceTeleworking equipment allowanceUdemy AccountAccess to Open Up mental health service&nbsp;28 days of paid annual leave consisting of your legal holidays and compensation daysYour profile:<ul><li>Bachelor’s degree or equivalent level through experience and professional training.</li><li>Between 5 and 7 years of experience in a mid to big size infrastructure.</li><li>Expertise in large-scale Storage Area Network (SAN) systems, including design, build, and operation (e.g., Dell/EMC, NetApp, HDS).</li><li>Hands-on experience with enterprise storage.</li><li>Proven experience managing large-scale storage across on-premises, co-location, and cloud environments.</li><li>Proficiency in operating and migrating SAN and Network Attached Storage (NAS) systems.</li><li>Expertise in fiber channel switches (Cisco/Brocade), NFS, block storage, VLAN configuration, and network switches.</li><li>Strong knowledge of Windows and Linux server platforms, storage technologies, and cyber resiliency principles.</li><li>Familiarity with cloud platforms and automation tools like Ansible, with scripting skills for configuration management.</li><li>Ability to quickly learn new technologies through self-study.</li><li>Strong communication skills, structured thinking, and process-oriented approach with attention to detail.</li><li>Proven ability to work independently, manage time effectively, and thrive under pressure while meeting tight deadlines.</li><li>Service-oriented mindset with excellent organizational and problem-solving skills.</li><li>Excellent command of both spoken and written English, any other European language would be a plus.</li><li>You must be eligible for EU Security Clearance (at least 5 years of EU nationality in required).</li></ul>﻿*This role may require flexibility, including shift-based work and on-call responsibilities, depending on operational needs.

Storage Engineer

The VMware Administrator will support the day-to-day operations of the virtualized infrastructure, assisting in the deployment, monitoring, and maintenance of VMware environments. This role is ideal for candidates with foundational knowledge of virtualization who are eager to develop their skills in a large-scale enterprise setting.Your role:<ul><li>Overseeing DC management, systems administration, and monitoring while maintaining networking and security systems.</li><li>Providing planning, installing, configuring, and upgrading support for vRealize Automation, vRealize Orchestrator, and NSX-T.</li><li>Leveraging expert-level experience with VMware and advanced technologies.</li><li>Applying extensive knowledge of networking and security products, solutions, and services, including firewalls, IDS/IPS, and Security/Trust Zones.</li><li>Creating network designs, blueprints, and standards for implementation in data centers.</li><li>Understanding VLAN routing between L3 devices and configuring VMware environments using NSX.</li><li>Supporting L2/L3 network infrastructure in a Leaf-Spine configuration aligned with VMware best practices.</li><li>Implementing L3 dynamic routing such as BGP.</li><li>Troubleshooting network issues and outages to ensure optimal system performance.</li><li>Developing use cases for container-based architectures and NSX-T implementations.</li><li>Designing secure network systems, configurations, and installations.</li><li>Leading documentation and presentation efforts for VMware deployments and the delivery of complex solutions.</li><li>Applying knowledge and experience with VMware’s Core Cloud Infrastructure as an added advantage.</li><li>Understanding modern IT, DevOps data centers, and cloud operations.</li><li>Utilizing monitoring solutions such as VMware vRealize for effective system management.</li><li>Maintaining an operational background in ITIL processes, network operations, and support.</li></ul>We value a&nbsp;collaborative&nbsp;and&nbsp;supportive&nbsp;environment, celebrating&nbsp;curiosity&nbsp;and&nbsp;engagementWe are committed to supporting the physical, financial and emotional well-being our of employeesCareer development.&nbsp;Training path and access to learning opportunities, yearly performance reviews and a mentorship programWe believe in&nbsp;work-life balance&nbsp;and&nbsp;flexibility.&nbsp;Wear casual clothing, decide your working hours and enjoy our&nbsp;hybrid&nbsp;working modelWear casual clothing, decide your working hours and enjoy our hybrid working modelTalent Friends.&nbsp;Refer a friend and receive a&nbsp;bonus&nbsp;when they joinWe care about youHealth &amp; well-being.&nbsp;Focus on your mental health with access to a platform with certified psychologists &amp; mental health workshops. Take a break with one of our online fitness and well-being sessionsDiversity &amp; inclusion.&nbsp;We are committed to equal employment opportunities regardless of gender, gender expression and identity, sexual orientation, religion, culture, origin, disability, age, or other personal and social characteristics.&nbsp;#WeAreAllUnique&nbsp;#YouMakeUsUniquePlease let us know if you require us to accommodate any accessibility needs during the recruitment process.Benefits at NTT DATA GreeceHealth insurance for the employee and one dependent family member (100% paid by NTT DATA)Meal vouchers of 120€ per month (x12)Corporate mobile phone: subscription &amp; deviceTeleworking equipment allowanceUdemy AccountAccess to Open Up mental health service&nbsp;28 days of paid annual leave consisting of your legal holidays and compensation daysYour profile:<ul><li>Bachelor's degree in Computer Science or a related field (Master’s degree or MBA preferred).</li><li>Minimum 5-10 years of experience in IT infrastructure with at least 3 years focused on VMware technologies.</li><li>ITIL certification (highly desirable) and experience with service management tools such as ServiceNow (a plus).</li><li>VCP-DCV, VCP-NV, CCNA, CCNP certifications or equivalent work experience.</li><li>Extensive experience in designing, implementing and maintaining network infrastructure at different scales (LAN/WAN/MAN).</li><li>Extensive experiences with Layer 2, 3, and 4 technologies, with the ability to apply the knowledge and experience in the design and implementation of global service .provider’s core and backbone network.</li><li>Experience with various networking technology, including MPLS, VPLS, VLAN, VxLAN, LTM/GTM, BGP, ACL, NAT, VPN, IPv4/IPv6.</li><li>Experience with software-defined network, such as VMWare NSX.</li><li>Background in automated network environments, Network components and concepts such as:Routers, switches, load balancers, and other networking and security components; Virtual networking components, dynamic routing.</li><li>protocols; Networking protocols such as BGP and OSPF; VLANs, VPN, Unicast vs Multicast, Management Networks, IP subnetting, and network design ; NSX Vmware with VR &amp; VRO.</li><li>Scripting skills.</li><li>Strong communication and documentation skills.</li><li>A proactive and analytical approach to problem-solving and process optimization.</li><li>Attention to detail to ensure accuracy and consistency.</li><li>Excellent command of both spoken and written English (any other European language would be a plus).</li><li>You must be eligible for EU Security Clearance (at least 5 years of EU nationality in required).</li></ul>﻿*This role may require flexibility, including shift-based work and on-call responsibilities, depending on operational needs.

VMware Engineer

As an Oracle Database Administrator you will assist in the administration, maintenance, and optimization of Oracle databases.Your&nbsp;role:<ul><li>Assist in the installation, configuration, and maintenance of Oracle databases.</li><li>Monitor database performance and troubleshoot issues under supervision.</li><li>Support backup, recovery, and disaster recovery procedures using RMAN.</li><li>Help implement security measures, user access controls, and compliance policies.</li><li>Maintain documentation of database configurations and operational procedures.</li><li>Collaborate with developers and system administrators to ensure database availability and reliability.</li><li>Participate in database upgrades, patching, and migration activities.</li></ul>Why NTT DATA?We value a collaborative and supportive environment, celebrating curiosity and engagementWe are committed to supporting the physical, financial and emotional well-being our of employeesCareer development. Training path and access to learning opportunities, yearly performance reviews and a mentorship programWe believe in&nbsp;work-life balance&nbsp;and&nbsp;flexibility. Wear casual clothing, decide your working hours and enjoy our hybrid working modelWear casual clothing, decide your working hours and enjoy our hybrid working modelTalent Friends. Refer a friend and receive a bonus when they joinWe care about youHealth &amp; well-being. Focus on your mental health with access to a platform with certified psychologists &amp; mental health workshops. Take a break with one of our online fitness and well-being sessionsDiversity &amp; inclusion. We are committed to equal employment opportunities regardless of gender, gender expression and identity, sexual orientation, religion, culture, origin, disability, age, or other personal and social characteristics. #WeAreAllUnique #YouMakeUsUniquePlease let us know if you require us to accommodate any accessibility needs during the recruitment process.Benefits at NTT DATA GreeceHealth insurance for the employee and one dependent family member (100% paid by NTT DATA)Meal vouchers of 120€ per month (x12)Corporate mobile phone: subscription &amp; deviceTeleworking equipment allowanceUdemy AccountAccess to Open Up mental health service&nbsp;28 days of paid annual leave consisting of your legal holidays and compensation daysYour&nbsp;profile:<ul><li>Bachelor’s degree in Computer Science or Information Technology.</li><li>Between&nbsp;5 and 7 years of experience&nbsp;in a similar role.</li><li>Solid understanding of relational database concepts and SQL.</li><li>Familiarity with Oracle Database architecture and tools.</li><li>Knowledge of Linux/Unix environments.</li><li>Strong analytical and problem-solving skills.</li><li>Good communication and teamwork abilities.</li><li>Excellent command of both spoken and written English (any other European language would be a plus).</li><li>You must be eligible for EU Security Clearance (at least 5 years of EU nationality in required).</li></ul>Nice to have:<ul><li>Exposure to Oracle RAC, Data Guard, and ASM concepts.</li><li>Experience with performance tuning and query optimization.</li><li>Knowledge of Oracle backup and recovery tools (RMAN).</li><li>Certifications such as Oracle Database Foundations or OCA (Oracle Certified Associate) are a plus.</li></ul>*This role may require flexibility, including shift-based work and on-call responsibilities, depending on operational needs.

Oracle Database Administrator

As a MySQL Database Administrator you will assist in managing, maintaining, and optimizing MySQL databases.Your&nbsp;role:<ul><li>Assist in the installation, configuration, and maintenance of MySQL databases.</li><li>Monitor database performance and troubleshoot issues under supervision.</li><li>Support backup, recovery, and disaster recovery procedures.</li><li>Help implement security measures and user access controls.</li><li>Maintain documentation of database configurations and operational procedures.</li><li>Collaborate with developers and system administrators to ensure database availability and reliability.</li><li>Participate in database upgrades and patching activities.</li></ul>Why NTT DATA?We value a collaborative and supportive environment, celebrating curiosity and engagementWe are committed to supporting the physical, financial and emotional well-being our of employeesCareer development. Training path and access to learning opportunities, yearly performance reviews and a mentorship programWe believe in&nbsp;work-life balance&nbsp;and&nbsp;flexibility. Wear casual clothing, decide your working hours and enjoy our hybrid working modelWear casual clothing, decide your working hours and enjoy our hybrid working modelTalent Friends. Refer a friend and receive a bonus when they joinWe care about youHealth &amp; well-being. Focus on your mental health with access to a platform with certified psychologists &amp; mental health workshops. Take a break with one of our online fitness and well-being sessionsDiversity &amp; inclusion. We are committed to equal employment opportunities regardless of gender, gender expression and identity, sexual orientation, religion, culture, origin, disability, age, or other personal and social characteristics. #WeAreAllUnique #YouMakeUsUniquePlease let us know if you require us to accommodate any accessibility needs during the recruitment process.Benefits at NTT DATA GreeceHealth insurance for the employee and one dependent family member (100% paid by NTT DATA)Meal vouchers of 120€ per month (x12)Corporate mobile phone: subscription &amp; deviceTeleworking equipment allowanceUdemy AccountAccess to Open Up mental health service&nbsp;28 days of paid annual leave consisting of your legal holidays and compensation daysYour&nbsp;profile:<ul><li>Bachelor’s degree in Computer Science or Information Technology.</li><li>Between&nbsp;5 and 7 years of experience&nbsp;in a similar role.</li><li>Solid understanding of relational database concepts and SQL.</li><li>Familiarity with MySQL architecture and tools.</li><li>Knowledge of Linux/Unix environments.</li><li>Strong analytical and problem-solving skills.</li><li>Good communication and teamwork abilities.</li><li>Excellent command of both spoken and written English (any other European language would be a plus).</li><li>You must be eligible for EU Security Clearance (at least 5 years of EU nationality in required).&nbsp;</li></ul>*This role may require flexibility, including shift-based work and on-call responsibilities, depending on operational needs

MySQL Database Administrator

We are seeking a motivated and detail-oriented Backup Administrator to support our backup and recovery operations. The ideal candidate will assist in managing backup systems, ensuring data integrity, and supporting disaster recovery processes. This is an excellent opportunity for someone looking to grow their career in IT infrastructure and data protection.Your role:<ul><li>Managing incidents to resolution, ensuring zero missed SLAs and achieving client satisfaction by building and supporting technology solutions.</li><li>Investigating technical support issues, identifying root causes to prevent recurrence.</li><li>Handling incident, problem, event, and request management, including identifying issues, developing workaround plans, and implementing resolutions within SLAs.</li><li>Managing and optimizing backup infrastructure operations, including monitoring, reporting, and implementing changes or service requests.</li><li>Documenting technical processes and providing on-call support.</li><li>Participating in and leading technical projects, including DR/BCP testing, change management, and service improvement initiatives.</li><li>Monitoring and reporting on server environments and SLAs, handling priority management, and escalating issues as needed.</li><li>Ensuring integration with other organizational teams and evolving service delivery methods and tools.</li><li>Utilizing automation tools for administration and monitoring of backup systems.</li><li>Performing security hardening, patches, updates, and system performance troubleshooting.</li><li>Overseeing daily backup activities, troubleshooting failures, and automating repetitive tasks.</li><li>Implementing security policies, performing vulnerability assessments, and ensuring compliance with industry standards.</li><li>Managing security tools, monitoring systems, and handling escalations.</li><li>Managing hybrid cloud environments (AWS/Azure), implementing cloud security measures, optimizing resources.</li><li>Ensuring IT infrastructure and systems remain operational by proactively identifying, investigating and resolving incidents and problems.</li></ul>We value a&nbsp;collaborative&nbsp;and&nbsp;supportive&nbsp;environment, celebrating&nbsp;curiosity&nbsp;and&nbsp;engagementWe are committed to supporting the physical, financial and emotional well-being our of employeesCareer development.&nbsp;Training path and access to learning opportunities, yearly performance reviews and a mentorship programWe believe in&nbsp;work-life balance&nbsp;and&nbsp;flexibility.&nbsp;Wear casual clothing, decide your working hours and enjoy our&nbsp;hybrid&nbsp;working modelWear casual clothing, decide your working hours and enjoy our hybrid working modelTalent Friends.&nbsp;Refer a friend and receive a&nbsp;bonus&nbsp;when they joinWe care about youHealth &amp; well-being.&nbsp;Focus on your mental health with access to a platform with certified psychologists &amp; mental health workshops. Take a break with one of our online fitness and well-being sessionsDiversity &amp; inclusion.&nbsp;We are committed to equal employment opportunities regardless of gender, gender expression and identity, sexual orientation, religion, culture, origin, disability, age, or other personal and social characteristics.&nbsp;#WeAreAllUnique&nbsp;#YouMakeUsUniquePlease let us know if you require us to accommodate any accessibility needs during the recruitment process.Benefits at NTT DATA GreeceHealth insurance for the employee and one dependent family member (100% paid by NTT DATA)Meal vouchers of 120€ per month (x12)Corporate mobile phone: subscription &amp; deviceTeleworking equipment allowanceUdemy AccountAccess to Open Up mental health service&nbsp;28 days of paid annual leave consisting of your legal holidays and compensation daysYour profile:<ul><li>Bachelor’s degree or equivalent level through experience and professional training</li><li>Between 5 and 7 years of experience in a mid to big size infrastructure</li><li>Hands-on experience with backup, and recovery for databases such as Microsoft SQL, MySQL, PostgreSQL, Oracle RAC, and MongoDB, as well as platforms like VMware and Terraform.</li><li>Proven experience managing large-scale backup, and recovery across on-premises, co-location, and cloud environments.</li><li>Extensive knowledge of backup tools and administration (e.g., VEEAM, Veritas NetBackup, OKM, Commvault, Rubrik).</li><li>Strong knowledge of Windows and Linux server platforms, backup technologies, and cyber resiliency principles.</li><li>Familiarity with cloud platforms and automation tools like Ansible, with scripting skills for configuration management.</li><li>Ability to quickly learn new technologies through self-study.</li><li>Strong communication skills, structured thinking, and process-oriented approach with attention to detail.</li><li>Proven ability to work independently, manage time effectively, and thrive under pressure while meeting tight deadlines.</li><li>Service-oriented mindset with excellent organizational and problem-solving skills.</li><li>Excellent command of both spoken and written English&nbsp;</li><li>You must be eligible for EU Security Clearance (at least 5 years of EU nationality in required).</li></ul>﻿*This role may require flexibility, including shift-based work and on-call responsibilities, depending on operational needs.

Backup Engineer

As a Senior Middleware Engineer you will be responsible for ensuring that clients' IT infrastructure and systems remain operational by proactively identifying, investigating, and resolving technical incidents and problems. The primary objective is to ensure zero missed service level agreement conditions and achieve client satisfaction through building and supporting technology solutions.&nbsp;Your role:<ul><li>Manage and optimize middleware and LAMP infrastructure, including third-party applications.</li><li>Oversee infrastructure operations: monitoring, availability testing, reporting, and documentation.</li><li>Implement changes, service requests, and provide on-call support as needed.</li><li>Participate in technical projects and resolve technical issues promptly.</li><li>Proactively manage service improvements and perform disaster recovery testing.</li><li>Handle change management processes and monitor SLAs.</li><li>Collaborate with different teams, manage escalations, and optimize service delivery methods.</li></ul>Why NTT DATA?We value a&nbsp;collaborative&nbsp;and&nbsp;supportive&nbsp;environment, celebrating&nbsp;curiosity&nbsp;and&nbsp;engagementWe are committed to supporting the physical, financial and emotional well-being our of employeesCareer development.&nbsp;Training path and access to learning opportunities, yearly performance reviews and a mentorship programTalent Friends.&nbsp;Refer a friend and receive a&nbsp;bonus&nbsp;when they joinWe care about youHealth &amp; well-being. Focus on your mental health with access to a platform with certified psychologists &amp; mental health workshops. Take a break with one of our online fitness and well-being sessionsDiversity &amp; inclusion. We are committed to equal employment opportunities regardless of gender, gender expression and identity, sexual orientation, religion, culture, origin, disability, age, or other personal and social characteristics. #WeAreAllUnique #YouMakeUsUniquePlease let us know if you require us to accommodate any accessibility needs during the recruitment process.Benefits at NTT DATA GreeceHealth insurance for the employee and one dependent family member (100% paid by NTT DATA)Meal vouchers of 120€ per month (x12)Corporate mobile phone: subscription &amp; deviceTeleworking equipment allowanceUdemy AccountAccess to Open Up mental health service&nbsp;28 days of paid annual leave consisting of your legal holidays and compensation daysYour profile:<ul><li>Bachelor’s or Master’s degree in Computer Science, Information Technology, or a related field.</li><li>8+ years of experience in middleware environments within mid-to large-size infrastructures.</li><li>Expertise in design, implementation, and maintenance of middleware solutions, focusing on WebLogic and LAMP stack (Linux, Apache, MySQL, PHP) in both on-premises and cloud environments.</li><li>Bachelor’s or master’s degree in computer science, Informational Technology, or a related field.</li><li>Strong knowledge of cloud platforms (e.g., AWS, Azure, Google Cloud) and on-premises infrastructure.</li><li>Familiarity with DevOps practices and tools (Jenkins, Docker, Kubernetes) and scripting languages (Python, Bash).</li><li>Experience with other middleware technologies (e.g., IBM WebSphere, JBoss).</li><li>Understanding of network protocols, security, backup &amp; storage technologies, and cyber resiliency principles.</li><li>Proficiency with automation tools like Ansible.</li><li>Strong server platform knowledge in Windows and Linux.</li><li>Ability to quickly learn new technologies; self-motivated and capable of independent study.</li><li>Service-oriented with strong customer focus.</li><li>Fluency in English (B2 level minimum); knowledge of another European language is a plus.</li><li>You must be eligible for EU Security Clearance (at least 5 years of EU nationality in required).</li></ul>

Senior Middleware Specialist

We’re looking for a Senior QA Engineer to help shape and build the future of our tools and products as part of the Sportsbook team. You’ll contribute to our in-house Sportsbook platform that powers multiple brands, leveraging a modern tech stack. The platform is built for high availability, scalability, and real-time performance.&nbsp;You’ll help us create and maintain a suite of manual, automation, and performance tests for our web applications and RESTful APIs. It’s a greenfield project with cutting-edge technologies, and you'll be part of a multi-cultural, geographically distributed team that collaborates online via audio and video conferencing tools.What you'll be getting up to:&nbsp; <ul><li>Working as part of the development team to provide technical expertise and support in terms of performance, automation and manual testing.</li><li>Ability to understand, analyse, evaluate and act upon business requirements forming a basis for Agile development approaches.</li><li>Identify components to be tested and define rapid and pragmatic fit for purpose testing in alignment with the rest of development teams.</li><li>Follow best practices, promote industry standards and ensure our products are reliable with an excellent user experience.</li><li>Knowledge of business requirements and their impact on delivery, identify and work together with a business analyst to gather missing requirements.</li><li>Execute software quality assurance testing via performance and automation tools.</li><li>Gather, analyse and summarise test results.</li><li>Be flexible to support your applications outside of working hours during major sport events (in rota with your peers and team mates) or during releases that may happen outside of standard working hours.</li></ul>Requirements:<ul><li>At least 5+ years of working experience in QA working on varied types of software development projects</li><li>Proven experience in creating detailed, comprehensive and well-structured test plans and test cases.</li><li>Experience in testing web applications UI using Playwright or Cypress, alternatively Selenium Web Driver or Appium</li><li>Solid knowledge of at least one modern programming language, preferably TypeScript, JavaScript.</li><li>Strong understanding of web technologies.</li><li>Familiarity with frontend frameworks.</li><li>Basic knowledge of SQL.</li><li>Basic knowledge of Linux command line (bash).</li><li>Understanding of continuous integration/delivery.</li></ul><ul><li></li></ul>Desirable skills and experience:<ul><li>Experience in manual and automated testing with RESTful Web Services using any of following tools: SOAPUI, Postman, Insomnia, Rest Assured, Karate or JMeter.</li><li>Experienced in performance testing using tools like K6 or JMeter.</li><li>Functional, integration and unit testing using JUnit or TestNG, Cucumber.</li><li>A background in online sports betting and gaming systems would be ideal, but we would love to hear from people who have any frontend testing knowledge and experience.</li></ul>

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