IT Manager

Brave Bison•London, CA

5d•Hybrid

About The Position

We’re seeking a hands-on IT Manager to lead complex company migrations, administer core enterprise platforms, and own our network architecture. You’ll drive tenant-to-tenant and cloud migrations (e.g., Microsoft 365, Google Workspace, all platforms), standardise and secure platform administration (endpoint, identity, collaboration, and infrastructure), and design reliable, secure networks across on‑prem and cloud (routing/switching, firewalls, SD‑WAN, VPN). This is a hands on technical role for a seasoned technologist who can work with a team while rolling up their sleeves to deliver outcomes at scale.

Requirements

Bachelor’s in Computer Science, Information Systems, Engineering, or equivalent experience.
Microsoft: Azure Administrator Associate; Microsoft 365 Administrator.
Networking/Security: Cisco (CCNP/CCNA), Fortinet NSE.
ITSM: ITIL Foundation/Intermediate.
8+ years in enterprise IT, including 3+ years leading or managing technical teams.
Proven end-to-end delivery of multi-phase migrations (at least two of: M365, Google Workspace, Exchange Online, identity consolidation, collaboration/voice, endpoint management).
Expert-level admin with Microsoft 365 and Microsoft Entra ID; strong MDM/Endpoint Management experience.
Strong networking foundation: TCP/IP, routing (OSPF/BGP), switching (L2/L3), wireless, SD-WAN, VPN, DNS/DHCP; hands-on with at least one major firewall platform.
Scripting/automation with PowerShell; familiarity with Terraform.
Experience with service desk reporting, monitoring/observability and incident/problem/change processes (e.g. Zendesk or Freshservice).
Excellent stakeholder communication and executive-ready reporting.

Nice To Haves

Experience with mergers and acquisitions (IT integrations).
Cloud networking and security in Azure and ideally GCP.
Zero Trust/SASE exposure and EDR/XDR.
Video/telephony integration for Microsoft Teams.
Compliance frameworks (e.g., ISO 2700) and data protection (DLP, retention, eDiscovery).
CI/CD for infrastructure, configuration management.

Responsibilities

Lead end-to-end company and platform migrations: M365 tenant-to-tenant, Exchange on-prem → Exchange Online, Google Workspace → M365, Box/Dropbox/Google Drive → OneDrive/SharePoint, identity consolidation (Active Directory → Microsoft Entra ID), and collaboration/voice migrations (Teams, Slack, Zoom).
Own migration playbooks, cutover plans, rollback strategies, test plans, and stakeholder communications.
Drive discovery, data mapping, coexistence strategies, and post-migration stabilisation with clear success metrics.
Coordinate across security, legal and HR to meet compliance, privacy, and change management requirements.
Oversee enterprise platforms: Microsoft 365, Google Workspace, Identity & Access, Endpoint Management (Kaseya Pro), Adobe Creative Cloud, Device/OS lifecycle, and collaboration/voice services.
Enforce configuration baselines, policies, and security controls (MFA/SSO, Conditional Access, device compliance, data loss prevention).
Implement Infrastructure as Code (e.g., Bicep/ARM/Terraform) for repeatable configs; leverage automation (PowerShell, Python) to minimise toil.
Establish robust monitoring, alerting, and incident response processes; ensure backup, DR, and high availability.
Lead and mentor a small team; set goals, conduct reviews, and build career paths alongside the IT Director.
Own change/release processes (ITIL), risk assessments, standards, and documentation.
Work alongside a cyber security analyst to ensure compliance with ISO 27001 and adhering to other security standards.
Manage vendor relationships, evaluate tools/partners.
Operate and improve office and cloud networking: routing/switching, VLANs, QoS, wireless, firewalls (e.g., Cisco, Fortinet), SD‑WAN, VPN, NAT, DNS/DHCP, load balancing.
Manage cloud networking: Azure VNets/Peering, ExpressRoute/Site‑to‑Site VPN, Private Endpoints, load balancers, application gateways and WAF.
Enhance performance, resilience, and security; implement Zero Trust/SASE-aligned designs, segmentation, and 802.1X/NAC where appropriate.

Benefits

Dynamic working:To keep that work-life harmony in check, we're flexible on where and when you work
Private medical insurance:To keep you fighting fit and give you and your family peace of mind.
Income protection:We know it feels good to be covered, just in case.
Calm Subscription:Now more than ever, it’s important to mind your mind!
25 days annual leave:This increases to 27 days after three years with us, and then increases every subsequent year up to a max. of 30 days
Christmas closure:No need to save holiday days for the Christmas closure period. It's on us!
Birthdays off:One extra day to celebrate your big day
Summer hours:Between June and Aug we finish at 15.00 every Friday.
Online coaching and mental health support:Unlimited via OpenUp
Remote Working:Work abroad for up to one month a year.
Performance & Salary: Reviewed twice a year for everyone.