Information Technology System Administrator
Code Wizards Group
Code Wizards Group is a world leader in backend and multiplayer infrastructure for the gaming industry. From high-scale AAA console and PC games to fast-paced mobile indie titles, we empower studios to bring multiplayer experiences to life.
We're looking for an experienced and proactive
IT Systems Administrator
to help manage and maintain our internal IT infrastructure. You'll work across a varied technology environment spanning on-premises infrastructure, virtualisation, AWS, Microsoft Azure and Microsoft 365. This is a hands-on role where you'll take responsibility for keeping systems secure, reliable and well maintained, troubleshooting issues and contributing to infrastructure improvements. You'll also work closely with our Head of IT on information security and ISO 27001 compliance activities, helping maintain our security standards and support ongoing improvements. We're looking for someone with solid technical foundations who is organised, takes ownership of their work and enjoys solving problems. You don't need experience with every technology we use, but you should be comfortable working independently and learning new systems. Key Responsibilities Systems Administration Administer, maintain and troubleshoot on-premises servers, virtual machines and supporting infrastructure.
Support and maintain services across AWS, Microsoft Azure and Microsoft 365.
Manage routine maintenance activities including patching, monitoring, backups and system health checks.
Support identity and access management, including Microsoft Entra ID, user provisioning, permissions and access reviews.
Investigate and resolve infrastructure and security-related issues, escalating more complex problems where appropriate.
Maintain accurate system documentation, asset inventories and operational procedures.
Support infrastructure improvements, system upgrades, backup restoration testing and disaster recovery activities.
Identify opportunities to improve the reliability, security and efficiency of our internal systems.
Information Security and Compliance Working alongside the Head of IT, you'll contribute to the ongoing management and improvement of our information security practices and ISO 27001 compliance activities. Responsibilities will include: Supporting the day-to-day administration of our ISO 27001 Information Security Management System (ISMS).
Coordinating recurring security activities, including access reviews, vulnerability management and supplier assessments.
Maintaining compliance documentation, audit evidence and records of security activities.
Supporting internal and external audits, including evidence gathering and preparation.
Assisting with client and partner security questionnaires and due diligence assessments.
Tracking security findings, remediation actions and compliance activities through to completion.
Identifying opportunities to improve security processes and operational practices.
Previous ISO 27001 experience would be beneficial, but isn't essential. You'll work closely with the Head of IT, with opportunities to contribute your existing knowledge or develop further experience in information security and compliance. Essential Experience and Skills Practical experience in a systems administration or infrastructure-focused IT role.
Experience administering Windows Server, virtual machines or on-premises infrastructure.
Hands-on experience with Microsoft 365 administration.
Experience working with AWS or Microsoft Azure.
Good understanding of networking fundamentals, identity and access management, patching and backups.
Ability to troubleshoot technical issues, investigate root causes and implement solutions.
Strong organisational skills, with the ability to prioritise competing tasks and follow work through to completion.
Good attention to detail and a methodical approach to documentation and system administration.
Clear written and verbal communication skills.
Ability to work independently while knowing when to seek guidance or escalate issues.
Desirable Experience Experience in any of the following would be beneficial, but we don't expect applicants to have all of them: Proxmox, VMware, Hyper-V or similar virtualisation technologies.
Administration across both AWS and Microsoft Azure.
Microsoft Entra ID, Intune and Defender.
Linux server administration.
Infrastructure monitoring, backup and disaster recovery solutions.
PowerShell, Bash or other scripting and automation tools.
Network infrastructure, firewalls and VPN technologies.
ISO 27001, information security audits or compliance management.
Security questionnaires, vulnerability management or risk assessments.
Relevant Microsoft, AWS or information security certifications.
What We're Looking For Beyond technical experience, we're looking for someone who: Takes ownership:
Proactively manages tasks, follows up on outstanding work and sees activities through to completion.
Is organised:
Can balance routine maintenance, support requests and project work without losing track of priorities.
Pays attention to detail:
Keeps documentation accurate, checks their work and recognises the importance of reliable processes.
Solves problems:
Enjoys investigating technical challenges and finding practical solutions.
Is proactive:
Identifies areas for improvement and takes the initiative to address them.
Works collaboratively:
Communicates clearly, shares knowledge and contributes positively to the wider team.
Support and Development You'll work closely with our Head of IT, supporting a broad range of infrastructure, cloud and information security activities. The role offers a varied mix of hands-on technical work and involvement in our established ISO 27001 compliance programme. Depending on your existing experience and interests, there will be opportunities to contribute to infrastructure improvements, strengthen security practices and develop your skills across different technologies. We value practical experience, initiative and a willingness to learn. You don't need to be an expert in every area from day one, but you should have the technical foundations to take responsibility for day-to-day systems administration. Why Join Code Wizards? We're passionate about building technology that powers great games, but we're equally passionate about creating an environment where talented people can do the best work of their careers. You'll join a business working with some of the world's leading game studios, with the opportunity to contribute to the technology and security practices that support our teams. If you're a capable Systems Administrator looking for a varied technical role where you can make a meaningful contribution, we'd love to hear from you. Salary:
£35,000–£45,000 depending on experience Location:
Theale, Berkshire Working arrangement:
Hybrid – 3 days onsite per week Life's better in Co-op. #LI-DNI
We're looking for an experienced and proactive
IT Systems Administrator
to help manage and maintain our internal IT infrastructure. You'll work across a varied technology environment spanning on-premises infrastructure, virtualisation, AWS, Microsoft Azure and Microsoft 365. This is a hands-on role where you'll take responsibility for keeping systems secure, reliable and well maintained, troubleshooting issues and contributing to infrastructure improvements. You'll also work closely with our Head of IT on information security and ISO 27001 compliance activities, helping maintain our security standards and support ongoing improvements. We're looking for someone with solid technical foundations who is organised, takes ownership of their work and enjoys solving problems. You don't need experience with every technology we use, but you should be comfortable working independently and learning new systems. Key Responsibilities Systems Administration Administer, maintain and troubleshoot on-premises servers, virtual machines and supporting infrastructure.
Support and maintain services across AWS, Microsoft Azure and Microsoft 365.
Manage routine maintenance activities including patching, monitoring, backups and system health checks.
Support identity and access management, including Microsoft Entra ID, user provisioning, permissions and access reviews.
Investigate and resolve infrastructure and security-related issues, escalating more complex problems where appropriate.
Maintain accurate system documentation, asset inventories and operational procedures.
Support infrastructure improvements, system upgrades, backup restoration testing and disaster recovery activities.
Identify opportunities to improve the reliability, security and efficiency of our internal systems.
Information Security and Compliance Working alongside the Head of IT, you'll contribute to the ongoing management and improvement of our information security practices and ISO 27001 compliance activities. Responsibilities will include: Supporting the day-to-day administration of our ISO 27001 Information Security Management System (ISMS).
Coordinating recurring security activities, including access reviews, vulnerability management and supplier assessments.
Maintaining compliance documentation, audit evidence and records of security activities.
Supporting internal and external audits, including evidence gathering and preparation.
Assisting with client and partner security questionnaires and due diligence assessments.
Tracking security findings, remediation actions and compliance activities through to completion.
Identifying opportunities to improve security processes and operational practices.
Previous ISO 27001 experience would be beneficial, but isn't essential. You'll work closely with the Head of IT, with opportunities to contribute your existing knowledge or develop further experience in information security and compliance. Essential Experience and Skills Practical experience in a systems administration or infrastructure-focused IT role.
Experience administering Windows Server, virtual machines or on-premises infrastructure.
Hands-on experience with Microsoft 365 administration.
Experience working with AWS or Microsoft Azure.
Good understanding of networking fundamentals, identity and access management, patching and backups.
Ability to troubleshoot technical issues, investigate root causes and implement solutions.
Strong organisational skills, with the ability to prioritise competing tasks and follow work through to completion.
Good attention to detail and a methodical approach to documentation and system administration.
Clear written and verbal communication skills.
Ability to work independently while knowing when to seek guidance or escalate issues.
Desirable Experience Experience in any of the following would be beneficial, but we don't expect applicants to have all of them: Proxmox, VMware, Hyper-V or similar virtualisation technologies.
Administration across both AWS and Microsoft Azure.
Microsoft Entra ID, Intune and Defender.
Linux server administration.
Infrastructure monitoring, backup and disaster recovery solutions.
PowerShell, Bash or other scripting and automation tools.
Network infrastructure, firewalls and VPN technologies.
ISO 27001, information security audits or compliance management.
Security questionnaires, vulnerability management or risk assessments.
Relevant Microsoft, AWS or information security certifications.
What We're Looking For Beyond technical experience, we're looking for someone who: Takes ownership:
Proactively manages tasks, follows up on outstanding work and sees activities through to completion.
Is organised:
Can balance routine maintenance, support requests and project work without losing track of priorities.
Pays attention to detail:
Keeps documentation accurate, checks their work and recognises the importance of reliable processes.
Solves problems:
Enjoys investigating technical challenges and finding practical solutions.
Is proactive:
Identifies areas for improvement and takes the initiative to address them.
Works collaboratively:
Communicates clearly, shares knowledge and contributes positively to the wider team.
Support and Development You'll work closely with our Head of IT, supporting a broad range of infrastructure, cloud and information security activities. The role offers a varied mix of hands-on technical work and involvement in our established ISO 27001 compliance programme. Depending on your existing experience and interests, there will be opportunities to contribute to infrastructure improvements, strengthen security practices and develop your skills across different technologies. We value practical experience, initiative and a willingness to learn. You don't need to be an expert in every area from day one, but you should have the technical foundations to take responsibility for day-to-day systems administration. Why Join Code Wizards? We're passionate about building technology that powers great games, but we're equally passionate about creating an environment where talented people can do the best work of their careers. You'll join a business working with some of the world's leading game studios, with the opportunity to contribute to the technology and security practices that support our teams. If you're a capable Systems Administrator looking for a varied technical role where you can make a meaningful contribution, we'd love to hear from you. Salary:
£35,000–£45,000 depending on experience Location:
Theale, Berkshire Working arrangement:
Hybrid – 3 days onsite per week Life's better in Co-op. #LI-DNI
Reference: WJCPA-5429_411957 · Posted 13 Nov 2026, 01:05 AM