Senior Network Engineer at uni-systems | Athens, Attica

Join GRNET, Greece's premier provider of networking and cloud computing solutions for academic and research institutions, as well as public and private sectors. We are at the forefront of advancing digital transformation initiatives across Greece, promoting cutting-edge technologies and applications that enhance educational and research capabilities. Our mission is to empower users in key sectors including Public Administration, Education, Research, Health, and Culture through innovative computing and network services.As the National Research and Education Network (NREN) of Greece, GRNET is dedicated to fostering collaboration with other digital service providers in the public sector, sharing best practices and expertise in advanced information systems. Our team plays an integral role in the national research and technological community within the European Union’s Research Infrastructures.We are seeking talented Network Reliability Engineers to join our NRE team, which is responsible for delivering robust Internet services, VPNs, and Cloud Networking Infrastructure. This role involves designing, developing, and maintaining resilient, scalable services based on Free and Open Source software while nurturing a strong DevOps culture within our organization.Key Responsibilities:Modernizing Data Center Networking Infrastructure and services.Providing Internet Feed and VPN services through access, Carrier MPLS, and Core Network.Developing and maintaining a Network Automation/Orchestration platform.Implementing Network Telemetry Infrastructure.Creating a DDoS detection and mitigation pipeline.Offering multi-tenant firewalling services.Overseeing the administration and operation of the Greek Internet Exchange (GR-IX).Responding to incidents related to network failures and service disruptions.Tools Utilized:Network Configuration and Automation Platform: NornirNetwork Orchestration: StackstormResource Databases: Netbox, IXP ManagerMonitoring: SNMP, Streaming Telemetry

Are you a seasoned Network Engineer eager to embrace your next professional adventure? Join our dynamic team at EUROPEAN DYNAMICS and play a crucial role in the design, deployment, and support of cutting-edge network infrastructures for large-scale projects across Europe. You will thrive in a collaborative environment where your technical skills are essential for delivering innovative and resilient network solutions.Your Responsibilities: Design, implement, and maintain LAN, WAN, and cloud-integrated network infrastructure to ensure optimal performance, scalability, and availability; Configure and support network equipment such as routers, switches, load balancers, and wireless solutions (e.g., Cisco, HPE, Fortinet, F5); Monitor network performance and troubleshoot complex connectivity, throughput, and routing issues across various network segments; Enhance network performance through analysis, tuning, and capacity planning to support enterprise-grade applications and services; Contribute to the rollout of new network services and technologies, including SD-WAN, VLANs, VPNs, and QoS configurations; Document network architectures, configurations, and procedures to support operational readiness and incident management; Collaborate with cross-functional teams to assist in infrastructure projects, application deployments, and system integrations; Ensure adherence to internal policies, industry standards, and specific client network requirements. Qualifications: Extensive hands-on experience in enterprise IP networking, covering routing (OSPF, BGP, EIGRP) and switching (VLANs, STP, EtherChannel); Proven experience with Cisco networking equipment and solutions; CCNP (Enterprise) certification or equivalent is strongly desired; Familiarity with firewalls, VPNs, and network segmentation practices to enhance performance and isolation (Fortinet, Cisco ASA, etc.); Solid grasp of network monitoring, diagnostics, and management tools; Demonstrated ability to work both independently and collaboratively within a team to troubleshoot and resolve complex technical issues. Preferred Qualifications: Experience with hybrid environments and cloud networking (Azure, AWS, or GCP); Exposure to network automation tools and scripting (Python, Ansible) is advantageous; Understanding of load balancing, HA/DR architectures, and traffic optimization (e.g., F5 BIG-IP, Citrix ADC); Familiarity with ITIL processes, ticketing systems, and change management procedures. Benefits:At EUROPEAN DYNAMICS, we value talent and dedication. Here’s what you can expect as part of our team:Competitive full-time salary;Comprehensive health insurance;

We are seeking a talented Site Reliability Data Engineer to join our dynamic team in Athens. As a Site Reliability Data Engineer, you will be at the forefront of ensuring the reliability and performance of our data systems. Your expertise will play a critical role in maintaining service uptime, optimizing system performance, and enhancing our data infrastructure.Your responsibilities will include monitoring system performance, troubleshooting issues, and implementing automation tools to streamline processes. You will collaborate with cross-functional teams to design and deploy scalable infrastructure solutions.

Betsson Group seeks a Site Reliability Engineer in Athens to support the stability and performance of online casino services. This position is part of the global Product Development organization, which spans six tech hubs: Malta, Budapest, Stockholm, Tallinn, Kyiv, and Athens. Nearly 600 professionals collaborate across these locations under the guidance of the CTO-CPO. Role overview This role focuses on maintaining and improving the reliability of Betsson Group’s gaming platforms. The Site Reliability Engineer works closely with teams across multiple locations to ensure services run smoothly for users worldwide. What you will do Incident and Problem Management: Investigate system incidents, lead Root Cause Analysis (RCA), and implement long-term solutions. Proactively reduce incidents related to system changes. Observability and Metrics: Define and uphold Service Level Agreements (SLAs), Service Level Objectives (SLOs), and success metrics for new projects. Build and maintain dashboards to support observability. Performance and Capacity: Identify and resolve performance bottlenecks. Optimize infrastructure and code for efficient service delivery, and contribute to capacity planning for hardware or cloud resources. Availability and Change Management: Ensure platform components remain available and functional. Oversee deployments to minimize disruption to live systems.

At Uni Systems, we are dedicated to transforming digital aspirations into tangible solutions. As we continue to expand, we are seeking a skilled Network Engineer to become part of our exceptional UniQue team.Key ResponsibilitiesAs a Network Engineer, you will be responsible for:Conducting advanced troubleshooting of network issues using network analyzers, sniffers, and a range of troubleshooting tools.Performing log file analysis and examining traces and dumps.Monitoring network performance and ensuring the reliable operation of LAN and WAN connections.Configuring and maintaining network devices including routers, switches, firewalls, and VPNs.Implementing network changes, updates, and fixes in accordance with established procedures.

Join the innovative team at Novibet as an Site Reliability Engineer!Are you prepared to play a pivotal role in a vibrant, rapidly expanding company? If you possess a strong commitment to reliability and scalability and thrive in a high-energy environment, this is the perfect opportunity for you.About UsEstablished in 2010, Novibet is a leading GameTech company with a presence across Europe, the Americas, and other regions, including Greece, Brazil, Ireland, Finland, Mexico, Chile, Ecuador, Cyprus, and New Zealand. With operational hubs in Greece, Malta, Brazil, and Mexico, our workforce exceeds 1,200 employees globally. We are dedicated to leveraging cutting-edge technology to provide seamless entertainment and gaming experiences to our ever-growing customer base.Why Work with Novibet?At Novibet, we empower our employees to excel by fostering a culture of growth through continuous learning and adaptation. Our team of forward-thinkers is dedicated to tackling new challenges while maintaining a positive, inclusive, and supportive workplace where everyone can flourish.Join our global team of over 1,200 dedicated professionals who value collaboration, innovation, and personal development.Your ResponsibilitiesAct as the primary on-call responder for platform incidents.Lead triage efforts, collaborate with DevOps and Engineering teams, and manage resolution processes from start to finish.Conduct comprehensive post-incident reviews to address root causes, not just close tickets.Manage the complete observability stack, including alerting, dashboards, log aggregation, and distributed tracing.Establish and uphold standards for defining service health across critical services.Refine alert thresholds to minimize noise and enhance signal quality.Systematically work to reduce the frequency and impact of future incidents.Analyze trends, monitor SLI/SLO performance, and pinpoint chronic issues.Drive enhancements in platform configuration, architecture, and operational practices.Identify and eliminate manual and repetitive operational tasks.Create runbooks, self-healing scripts, and tools for automated remediation.Enhance organizational resilience beyond just improving team efficiency.Establish and monitor Service Level Indicators and Objectives in collaboration with Service Managers.Serve as the technical advocate during reliability discussions.Collaborate with Engineers to embed reliability into releases, capacity planning, and load testing.Work with DevOps on strengthening infrastructure.Participate in release planning as a reliability checkpoint before critical deployments.

Join our dynamic team as a Senior Site Reliability Data Engineer, where you will play a pivotal role in enhancing and optimizing our data systems. Your expertise will drive the reliability and scalability of our platforms, ensuring seamless user experiences and high availability.In this role, you will collaborate closely with cross-functional teams to implement best practices in data reliability and performance. You will be responsible for monitoring, troubleshooting, and enhancing our data pipelines and infrastructure.

Become a part of Intralot as a Network Engineer (Enterprise IT)We are seeking a talented Network Engineer to enhance our team in response to our growing corporate needs.Key Responsibilities:Network Monitoring:Oversee and maintain network infrastructure including Firewalls, Routers, Switches, VPNs, and Load Balancers across all locations, addressing alerts and outages promptly.Design and deploy innovative solutions to boost the resilience of both on-premises and cloud environments.Establish network configurations by participating in system design, installation, upgrades, and enforcing standards.Network Maintenance:Maximize network performance by monitoring, troubleshooting issues, scheduling upgrades, and collaborating with other technology leaders.Upgrade data and voice network equipment to stable firmware releases.Configure and upgrade routing, switching, and Load Balancing devices, as well as Firewalls and VPN devices.Coordinate with ISPs and hosting providers for necessary upgrades or reconfigurations.Documentation Management:Implement and manage housekeeping tasks.Update network documentation and designs regularly.

Betsson Group delivers online gaming products to customers worldwide, supporting more than 40 brands and hundreds of thousands of users. The company develops proprietary gaming platforms and works with a range of partner brands across multiple markets. About the Team The Product Development team brings together creative minds from five global locations. The group focuses on building and maintaining a scalable platform for the iGaming sector, where reliability and performance are essential. What to Expect Site Reliability Engineers in Player Management play a key role in ensuring mission-critical systems run smoothly. The team uses modern technologies to keep performance high and users satisfied in a competitive industry. As the platform grows, engineers help maintain stability and support new features for a growing user base. Location This position is based in Athens.

Join Bally's Intralot as a Network Engineer (Enterprise IT)We are seeking a skilled Network Engineer to join our dynamic team and support our growing enterprise IT needs.Key ResponsibilitiesNetwork Monitoring:Oversee and maintain all network-related components (such as firewalls, routers, switches, VPNs, and load balancers) across various sites, promptly addressing alerts and outages.Design and deploy innovative solutions to enhance the resilience of both on-premises and cloud environments.Participate in establishing network configurations, guiding installations, upgrades, and enforcing system standards through thorough documentation.Maintaining Network Areas:Maximize network performance through continuous monitoring, troubleshooting issues, scheduling upgrades, and collaborating with other technology leaders.Ensure timely upgrades of data and voice network equipment to the latest stable firmware.Configure and upgrade routing, switching, and load balancing devices, as well as firewalls, ensuring proper access control lists, intrusion prevention/detection systems, and web filtering.Coordinate with ISPs and hosting providers to reconfigure and upgrade interconnection points as necessary.Documentation Management:Implement and oversee regular housekeeping of network documentation.Ensure network documents and designs are kept current and accurate.

Join Intralot as a Senior Network EngineerYour Responsibilities:As a Senior Network Engineer, you will be instrumental in delivering top-tier (3rd level) technical support for network-related challenges in our international projects.Key Responsibilities Include:Network Monitoring and Maintenance: Maintain and oversee network equipment across all sites, swiftly responding to alerts and outages.Contribute to the architecture and deployment of innovative solutions while bolstering the resilience of existing network environments.Establish and manage network infrastructures by designing system configurations, overseeing system installations, and defining, documenting, and enforcing system standards.Optimizing Network Performance:Enhance network performance by monitoring metrics, troubleshooting issues and outages, and orchestrating upgrades.Optimize and configure routing, switching, and load-balancing devices.Upgrade network equipment to the latest stable firmware versions.Documentation and Housekeeping:Implement and coordinate necessary housekeeping activities.

Join Kaizen Gaming!At Kaizen Gaming, the driving force behind Betano, we are recognized as one of the largest GameTech companies globally, operating in 20 diverse markets. Our mission is to harness state-of-the-art technology to deliver unparalleled experiences to millions of customers who rely on us for their entertainment needs.Our vibrant team comprises over 2,700 passionate professionals from more than 40 nationalities, spanning across three continents.Proudly recognized among the Best Workplaces in Europe and certified as a Great Place to Work in our offices, we promise that no two days will be the same. Are you ready to Press Play on Your Potential?About the RoleAs a Site Reliability Engineer at Kaizen Gaming, you will collaborate with a talented team to optimize the operational workflows of mission-critical applications and services in a 24/7 environment, both in cloud and physical data centers. Your focus will be on enhancing application performance, stability, and scalability.We are seeking an experienced Site Reliability Engineer with a comprehensive technical skill set and a passion for development and automation. If you're excited about solving technology's most significant challenges and making an impact on a vast user base, this role is for you. Our SRE team consists of skilled engineers who work effectively to support large-scale applications delivering real-time content to thousands of users in a fast-paced, expanding environment.Your Responsibilities:Enhance daily operational workflows for critical applications and services in a 24/7 environment.Continuously improve application observability to ensure the reliability and uptime of our systems.Leverage a wide array of open-source technologies to build fault-tolerant, scalable, and secure high-performance services and pipelines globally.

Piraeus Bank serves as a major financial institution in Greece, supporting 4.5 million customers with a wide range of banking products and services. Recognized in 2025 by The Banker as the “Best Bank in Greece” and honored by Euromoney for excellence in corporate social responsibility, ESG, and digital banking, the bank emphasizes responsible practices, innovation, and digital transformation. The Technology department is looking for an IT Infrastructure & Reliability Engineer to join the Host & Servers Engineering team in Athens. This position plays a key role in maintaining the reliability and modernization of the bank’s core IT systems. Role overview This role focuses on supporting major IT initiatives that ensure the performance and availability of both on-premises and cloud infrastructure. The position combines technical leadership with hands-on engineering, requiring active involvement in troubleshooting and supporting production environments. What you will do Maintain high availability and reliability for essential infrastructure services across on-premises and cloud platforms. Automate manual operational processes to improve efficiency and reduce risk. Support migration of applications from legacy systems to modern platforms. Plan and implement upgrades for critical infrastructure, including monitoring, security, and load-balancing systems. Contribute to the deployment and management of an OpenShift container platform. Act as a senior escalation point for complex infrastructure and production issues. Work closely with application, security, and architecture teams to deliver solutions that meet banking standards and regulatory requirements.

IKH Group is a premier Software and Robotics Solutions organization with a global footprint. In just a few years, our team has expanded over 80%, and we are excited to kick off 2025 with a variety of innovative projects centered around digital transformation, custom software, and robotics.Blend Technologies, a division of IKH Group, is an emerging Technology and Innovation solutions firm, driven by a passion for technology. We provide tailored services and solutions to propel the Industry 4.0 revolution, with an in-depth understanding of the technologies that are defining the future, including Cloud Computing, Cyber Security, and Artificial Intelligence.We are seeking a highly skilled Senior Network Engineer to lead new and challenging projects that will push the boundaries of our capabilities.In this role, you will be accountable for the design, implementation, maintenance, and troubleshooting of our company's local area network (LAN), wide area network (WAN), and internet systems.

Join Bally's Intralot as a Senior Network EngineerYour Role:As a Senior Network Engineer, you will be essential in providing advanced (3rd level) technical support to resolve network-related challenges for our global initiatives.Key Responsibilities:Network Monitoring and Maintenance:Oversee and maintain network infrastructure across all locations, ensuring timely response to alerts and outages.Contribute to the architectural design and deployment of innovative solutions while bolstering the robustness of existing network environments.Establish and oversee network setups by creating system configurations, guiding installations, and defining, documenting, and enforcing standards.Optimizing Network Performance:Enhance network performance by analyzing performance metrics, diagnosing issues, and coordinating upgrades.Fine-tune and configure routing, switching, and load-balancing devices.Update network devices to the latest stable firmware versions.Maintain Documentation and Implement Housekeeping:Coordinate and execute housekeeping activities to ensure operational efficiency.

Join our dynamic technical team at Adaptera as a NetDevOps Engineer, where your expertise in network engineering will drive automation and seamless integrations. You will be pivotal in designing, implementing, and maintaining robust network monitoring systems, crafting automation workflows, and integrating third-party platforms to enhance operational efficiency.Key Responsibilities:Design, implement, and support advanced network monitoring and observability solutions.Create automation scripts and workflows that minimize manual operational tasks.Develop and manage CI/CD pipelines for networking, ensuring automated testing, validation, and deployment of network changes.Integrate network infrastructure with third-party monitoring systems using APIs.Engage with network visibility and packet analysis tools (e.g., Netscout).Assist in network traffic analysis, troubleshooting, and performance investigations.Utilize observability tools for continuous monitoring to proactively identify and resolve network issues.Manage and maintain network source-of-truth platforms like NetBox.Integrate with CMDB, ITSM, and inventory platforms.Support both customer and internal infrastructure projects.Drive continuous improvement initiatives for automation, integration, and monitoring capabilities.

IKH Group is an internationally recognized leader in Software and Robotics Solutions, experiencing remarkable growth of over 80% in just a couple of years. As we embark on 2025, we are excited to unveil several innovative projects in digital transformation, custom software, and robotics.Blend Technologies, a pioneering arm of IKH Group, is dedicated to providing cutting-edge Technology and Innovation solutions. Our team, composed of passionate technology enthusiasts, is committed to delivering tailored services that propel the advancement of Industry 4.0, with a strong focus on Cloud, Cyber Security, and AI technologies.We are currently on the lookout for a seasoned Senior Network Security Engineer to join our dynamic Group IT Infrastructure & Security teams. In this critical role, you will significantly contribute to the architecture, design, and operation of extensive enterprise network and network security infrastructures. You will serve as a technical authority, supporting mission-critical services, spearheading automation and observability initiatives, and guiding junior engineers.Your Daily Responsibilities Include:Engaging in the design, implementation, and management of sophisticated enterprise routing and switching infrastructures across data centers, campuses, and WAN environments.Crafting, implementing, and overseeing firewall and network security platforms, ensuring secure connectivity, effective segmentation, and policy enforcement on a large scale.Defining and refining network and network security architectures, employing principles of defense-in-depth, least-privilege access, and security-by-design.Architecting, managing, and troubleshooting AAA services (RADIUS / TACACS+), facilitating secure administrative and user network access.Designing, implementing, and maintaining Network Access Control (NAC) solutions to enforce device posture assessments, user access policies, and compliance standards.Creating and implementing network automation solutions to enhance reliability, consistency, and operational efficiency (such as configuration management, provisioning, and validation).Contributing to technology roadmaps, platform selections, and continuous improvement initiatives.Collaborating closely with security operations, cloud, infrastructure, and application teams to ensure comprehensive service reliability and security alignment.Promoting standardization, documentation, and operational excellence across teams.Sharing knowledge, providing technical mentorship, and guiding junior engineers within the team.

Join a pioneering leader in the education technology sector, renowned globally for its expertise in the assessment and certification of professional skills. With a presence in over 200 countries, this is your chance to apply now! PeopleCert is seeking a dedicated IT Network Administrator to elevate and optimize our IT operations. In this pivotal role, you will leverage your technical skills and industry knowledge within a dynamic, collaborative team that upholds an ISO 27001–certified, 24/7 operational environment. Our hybrid infrastructure utilizes advanced virtualization, cloud technologies, and Microsoft 365 services, providing a vibrant platform for professional advancement and innovation.Your responsibilities will include:Installing, configuring, testing, and documenting network equipment and systems according to established designs and specifications.Overseeing daily networking functions to ensure reliability, availability, and serviceability with minimal disruptions.Monitoring network performance to guarantee continuous access for all users, proactively addressing potential issues.Providing Tier 2 support for problem identification, diagnosis, and resolution.Configuring firewall security settings to manage access for groups and individuals while facilitating incoming data provisions.Leading network technology upgrades and expansion projects, including hardware and software installations, integration testing, and coordination with minimal impact on existing systems.Creating and maintaining documentation for installation, network topology, and troubleshooting procedures.Executing disaster recovery operations.Delivering technical support, responding to user tickets, and troubleshooting reported network issues.Engaging in the troubleshooting of interconnected systems and providing valuable feedback. Qualifications we seek:A University Degree in Computer Science, Computer Engineering, or a related field.Proficient command of the English language (C2 level certification preferred; LanguageCert C2 LTE or C2 IESOL certificate is advantageous).At least 2 years of experience in a networking role.Strong grasp of network and firewall platforms (e.g., Cisco, Palo Alto, ClearPass).Hands-on experience with wireless technologies (e.g., Ubiquiti Networks) and network monitoring/capacity management tools (e.g., PRTG, SolarWinds).Familiarity with network technologies, including routing protocols (Static, OSPF, VRRP/HSRP), VLANs, SPAN, Ethernet, ACL, VPNs, and SNMP.Experience with VoIP technologies, including Quality of Service (QoS).CCNA, CompTIA Network+, or ITIL certifications are a plus.Understanding of cloud environments (e.g., Azure).Strong communication and interpersonal skills.

Mellon Technologies is on the lookout for a dynamic and motivated Junior External Networks Officer for a prominent Financial Institution based in Piraeus. This role aims to bolster the team within the Retail Business Banking External Networks unit, contributing to the development of a thriving ecosystem of certified partners.The successful candidate will act as a vital link between external partners and the Bank's internal departments, actively participating in achieving the unit's commercial and quality objectives.Key Responsibilities:Attract and onboard esteemed specialized businesses into the Partner Ecosystem.Manage and grow a portfolio of partners and business clients, focusing on delivering comprehensive financing solutions and enhancing collaboration with the Bank.Analyze financial statements and assess clients' financial data to assist in crafting financial proposals and recommendations to the relevant Credit Committees.Coordinate and communicate with internal units (Credit, Risk, Products, Channels) to ensure smooth financing implementation and maintain portfolio quality.Foster and maintain trust-based relationships with partners and clients, identifying opportunities for new business and strengthening collaborations within the Certified Partners Ecosystem.Monitor portfolio performance and efficiency, timely identifying risks and formulating improvement proposals.Coordinate, organize, and conduct informative seminars for selected Small Business Clients.Represent the unit in internal and external meetings, committees, and business events, promoting the collaborative culture and consulting approach of RBB External Networks.