Senior Systems Administrator
Kaizen Gaming is looking for a Senior Systems Administrator to manage internal systems integration and Active Directory administration. The role involves working closely with other tech teams such as SREs and third-party suppliers, helping translate business requirements into effective automation solutions.
The Senior Systems Administrator will manage and improve internal business systems and applications, as well as monitor public cloud platforms. The position requires deploying and configuring third-party applications with a focus on security, performance, redundancy, and user experience. Collaboration with Solution Engineers, vendors, and delivery teams is key to identifying business requirements and suggesting service improvements. The role also involves working with Network and Security teams on incident response and applying policies related to Zero Trust architecture, Role-Based Access Control (RBAC), and Multi-Factor Authentication (MFA). Providing second-level support and identifying automation opportunities for administrative tasks are also core responsibilities. Creating and maintaining system documentation and working with Managed Services Partners for software and service rollouts are also part of the role.
- Manage and improve internal business systems and applications (Active Directory, Entra ID, Intune, Jamf, Slack, GSuite, Jira, Confluence, Microsoft 365, etc.) used across the company.
- Manage and monitor public cloud platforms (e.g. Google Cloud, Azure, AWS).
- Assist on deploying enterprise AI tools (e.g. Claude Code, Gemini, Cursor).
- Deploy and configure third-party applications with a keen focus on security, performance, redundancy, and user experience.
- Work with Solution Engineers to identify business requirements and suggest service improvements according to company policies and directions.
- Collaborate with vendors and delivery teams in the installation and deployment of new system functionalities.
- Collaborate with the Network and Security teams as part of incident response and to apply policies related to Zero Trust architecture, Role-Based Access Control (RBAC), and Multi-Factor Authentication (MFA).
- Provide second-level support by managing incoming incidents, problems, and service requests in line with user needs, system functionality, and internal processes.
- Identify and implement automation for recurring administrative tasks.
- Create and maintain documentation of systems, processes, and procedures.
- Work with Managed Services Partners to manage the rollout of new software and services as required.
- Previous experience of 8+ years in the role (required).
- Ability to troubleshoot advanced issues related to Active Directory topology, and related features, in a complex, multi-site and/or multi-domain environment (required).
- Strong knowledge of LDAP/Active Directory, SSO, or other authentication or user management systems (e.g., Entra ID, Google SSO) (required).
- Hands-on experience in any bi-directional, automated integration between two systems (required).
- Automation-first mentality (required).
- Agile and solution-focused approach (required).
- Excellent organizational and planning skills (required).
- Advanced/fluent English Skills (required).
Kaizen Gaming is one of Europe's fastest-growing GameTech companies, operating the Betano and Stoiximan sports-betting and online-casino brands. Founded in 2013 and headquartered in Athens, Greece, with a major operational hub in Malta, it serves more than 13 million customers across 19 markets in Europe, the Americas and Africa. The company builds its own technology, combining sportsbook, live betting and casino products. Its flagship Betano brand has grown internationally through sponsorships including UEFA competitions and major football clubs.
