Senior Infrastructure Systems Engineer

Hybrid Software Helix is seeking a Senior Infrastructure Systems Engineer to join a small internal IT department that provides support to its operating companies worldwide. Reporting directly to the chief information officer, this role would be ideally suited for a well-rounded, knowledgeable individual who understands the complexity and challenges of modern infrastructure and has a strong grasp of Azure adoption within an enterprise.

The successful candidate will help implement the organization’s cloud-adoption strategy and contribute to the development of processes in anticipation of ISO27001 certification. The role, therefore, requires a highly technical, technology-passionate professional with experience in maintaining and deploying infrastructure systems, server maintenance, and project work, as well as a strong working knowledge of Microsoft Azure.

The core infrastructure within the business is a multi-site mixture of Windows (2022/2025 Servers/Active Directory), HP-based networking and next-generation firewalls. The department works with products such as vSphere, Microsoft Azure, Atlassian tools, Veeam, Microsoft 365, Intune and many more.

In addition to project-based work you will be expected to deal with critical system issues as and when they occur, which may occasionally involve out-of-hours work.

Location: Hybrid Software Helix, Cambourne, Cambridgeshire (Hybrid, three office days per week)

Key Responsibilities:

• Help deliver the company’s data center migration goals into Microsoft Azure.
• Take ownership of core infrastructure services, including Active Directory, Microsoft 365, Azure, LAN, firewalls, backup, virtualization and storage.
• Strengthen infrastructure security and promote best practice across the environment as part of the organization’s ISO27001 readiness programme.
• Research, plan and implement infrastructure upgrades and replacement solutions, either independently or as part of a team.
• Administer VMware vSphere infrastructure and enterprise storage platforms.
• Respond to alerts from network and system monitoring tools to minimize downtime and service impact.
• Administer backup and disaster recovery systems, including testing, documentation and improvement of recovery processes.
• Create and maintain internal documentation, procedures, processes and technical standards.
• Handle escalated issues from the IT helpdesk relating to core infrastructure services.
• Support infrastructure requirements for development and operational tooling, including CI/CD platforms where required.
• Contribute to infrastructure planning, lifecycle management, security improvement and cloud-adoption initiatives.
• Occasional travel to other Hybrid Software sites as required to support infrastructure migrations and upgrades.

Required Skills and Experience:

• Strong experience with Microsoft Azure in a hybrid enterprise environment, including identity integration, networking, virtual machines, governance and migration of on-premises services.
• Advanced knowledge of Microsoft 365, Entra ID and multi-site, multi-domain Active Directory environments.
• Networking expertise, including TCP/IP, DHCP, DNS, VLANs and next-generation firewalls.
• Experience supporting secure infrastructure environments and applying infrastructure security best practices.
• Working knowledge of backup, disaster recovery and business continuity processes.
• Experience with infrastructure monitoring, troubleshooting and incident response.
• Strong scripting ability in at least one language, such as PowerShell, Python or Bash.
• Ability to create clear technical documentation, procedures and standards.
• Able to communicate effectively, both verbally and in writing.
• Strong problem-solving skills, with the ability to identify practical and creative solutions.
• High attention to detail, with the mindset to validate changes and check for expected outcomes.
• Strong aptitude for learning new technologies.
• VMware vSphere administration.
• Enterprise storage administration, ideally including NetApp.
• Microsoft Intune and endpoint management.
• Veeam backup and replication.
• Atlassian tools, including Jira, Confluence and Bitbucket.
• CI/CD tools such as TeamCity, GitLab, Azure DevOps or similar.
• Infrastructure-as-code or automation tooling.
• Palo Alto, Fortinet or other next-generation firewall platforms.
• Experience contributing to ISO27001, security, change management or other formal IT governance processes.
• Experience working in a multi-site or international business environment.

Benefits:

• Competitive salary based on experience and skills.
• Generous 9% non-contributory pension scheme.
• Comprehensive private medical cover for you and your family.
• Income protection and life assurance.
• Flexible working hours and holiday plan.