Senior Infrastructure Engineer

About us

At Sedulo, we're looking for people who want to do great work and go beyond expectations. Whether it's embracing feedback, building strong relationships, or simply bringing your best each day, we value people who care about what they do.

We're committed to creating a positive, supportive environment both in our offices and in the communities around us. Our ongoing charity projects and campaigns are a big part of who we are, and everyone is encouraged to get involved and make a difference.

We also believe work should be enjoyable. Alongside all of this, our events team ensure we also have a lot of fun - with countless wellbeing activities and events being hosted at all our offices every week!

We understand that to be a world class organisation, we must embrace uniqueness and choose courage over comfort. Everything we strive to be is grounded in our core values: Personable, Integrity, Holistic, Innovative and Delivery Beyond Expectation.

• Administer and optimise Azure infrastructure, including Virtual Machines, Azure Active Directory, Virtual Networks, App Services, and storage solutions.
• Manage and monitor Azure Virtual Desktop (AVD) environments, ensuring performance, scalability, and cost efficiency.
• Oversee domain services (Active Directory, DNS) and synchronization with Microsoft Entra ID.
• Implement and maintain Azure backup and disaster recovery strategies.
• Maintain and enhance the performance of our SQL Server environments (both Azure-hosted and legacy on-prem).

• Support and administer Exchange Online, SharePoint Online, OneDrive for Business, and Microsoft Teams.
• Implement governance, security, and compliance policies within the Microsoft 365 environment.
• Manage user identities, access, and licenses within Microsoft Entra (Azure AD).
• Contribute to Power Automate or PowerShell-based automation where appropriate.

• Configure and maintain our Fortinet stack (FortiGate, FortiSwitch, and FortiAP) across multiple sites.
• Manage VLANs, VPNs, SD-WAN, and security policies within the FortiGate ecosystem.
• Monitor network performance and respond proactively to alerts or incidents.
• Ensure network security best practices and coordinate regular firmware and policy updates.

• Collaborate with internal teams and developers on the integration of Azure App Services and containerised applications.
• Lead infrastructure components of IT and digital transformation projects.
• Provide documentation, change control, and technical guidance for new initiatives.

• Act as the final escalation point for complex technical issues.
• Provide mentoring and training to junior IT staff and apprentices.
• Maintain IT standards, policies, and documentation.
• Liaise with vendors and partners to maintain service reliability and performance.

• Significant experience in IT infrastructure roles, including at least 2 years with Azure administration.
• Strong understanding of Microsoft Azure, including networking, compute, storage, and identity services.
• Proficient in Microsoft 365 administration and Entra ID (Azure AD).
• Experience with Azure Virtual Desktop, Intune, and Endpoint Manager.
• Solid networking knowledge (TCP / IP, VLANs, DNS, DHCP, routing, VPN).
• Hands-on experience with Fortinet firewalls, switches, and access points.
• Knowledge of PowerShell scripting and automation.
• Familiarity with SQL Server management and Azure SQL.
• Strong troubleshooting, documentation, and communication skills.
• Understanding of cybersecurity principles and compliance frameworks.

• Microsoft Certified: Azure Administrator Associate (AZ-104) - required or working towards.
• Fortinet NSE 4 or above certification.
• Microsoft 365 Certified: Enterprise Administrator Expert.
• Experience with Azure DevOps, App Services, or containerized environments (Docker / Kubernetes).
• Exposure to Intune device management and conditional access policies.
• ITIL Foundation certification.

• Analytical mindset and proactive problem-solver.
• Strong communication skills with both technical and non-technical staff.
• Excellent time management and prioritisation.
• Passion for continuous learning and adopting new technologies.
• Ability to work both independently and as part of a collaborative team.

What we offer

Holidays & Flexibility:

• 26 days annual leave (including your birthday), plus bank holidays
• Flexible working hours and remote work for up to 20% of contractual hours
• Option to work abroad for up to 4 weeks
• Flexible public holiday policy.

Pension & Insurance:

• Company pension scheme
• Enhanced maternity, paternity, adoption and shared parental pay
• Death-in-service (4x salary)
• Group income protection (50% salary)

Health and Wellbeing

• Discounted health perks via Medicash and Unum;
• Wellbeing initiatives
• Lifestyle Perks: free breakfasts, refreshments, free events, and socials;
• Annual Christmas trip abroad;
• Financial and mortgage advice;
• Cycle-to-work and travel ticket loans;
• Electric car salary sacrifice scheme.

Professional Development & Volunteering:

• Paid volunteering days (2 per year);
• Ongoing personal and professional development, including access to our online learning platform (Kallidus).