Senior IT Systems Administrator
Sign up free to see how well your resume matches this role.
What you'll do
- Infrastructure & Identity: Architect, secure, and scale core systems. Own identity and device management across Windows and macOS (Entra ID, Intune MDM).
- Security & Compliance: Enforce Zero-Trust architectures, lead SOC 2 / ISO 27001 audit readiness, and establish security policies for enterprise AI tools.
- SaaS & Vendor Strategy: Manage the SaaS ecosystem (O365, Salesforce, NetSuite, etc.). Partner with the CFO to lead vendor negotiations, eliminate tool sprawl, and optimize software spend.
- Team Leadership: Mentoring and developing the Help Desk Technician; establishing SLAs and shifting support from reactive to proactive.
- Operations & Automation: Automate onboarding/offboarding workflows, maintain asset inventories, and act as the final escalation point for critical IT issues.
What they're looking for
- 6+ years in IT systems administration or infrastructure engineering.
- Expertise in Entra ID (Azure AD), Intune MDM, and mixed Windows/macOS environments.
- Hands-on experience owning security controls, EDR tools (e.g., SentinelOne), and compliance audit readiness (SOC 2/ISO).
- Strong technical judgment, independent decision-making, and experience mentoring junior IT staff.
- Resident in/near Cork for hybrid office presence.
Nice to have
- Experience in high-growth, SaaS, or Private Equity (PE)-backed environments.
- Scripting/automation skills (PowerShell, Bash, or Python).
- Familiarity with enterprise SaaS platforms (NetSuite, Salesforce, MS Purview) and vendor contract negotiation.
Summarised by NextRaise from the employer’s description, which follows in full below.
Full description from employer
Senior IT Systems Administrator
Location: Cork, Ireland (Hybrid: 2-3 days on-site)
Reporting To: Chief Financial Officer (CFO)
Direct Reports: Help Desk Technician
The Role
As Senior IT Systems Administrator, you will be the technical architect and operational owner of our clients internal IT environment. Reporting directly to the CFO, you will own the cloud infrastructure, identity management, zero-trust security, and SaaS ecosystem, while mentoring a Help Desk Technician.
This is a high-autonomy, hands-on role for a senior engineer ready to drive IT strategy, streamline vendor costs, and build a secure, scalable platform for growth.
Key Responsibilities
- Infrastructure & Identity: Architect, secure, and scale core systems. Own identity and device management across Windows and macOS (Entra ID, Intune MDM).
- Security & Compliance: Enforce Zero-Trust architectures, lead SOC 2 / ISO 27001 audit readiness, and establish security policies for enterprise AI tools.
- SaaS & Vendor Strategy: Manage the SaaS ecosystem (O365, Salesforce, NetSuite, etc.). Partner with the CFO to lead vendor negotiations, eliminate tool sprawl, and optimize software spend.
- Team Leadership: Mentoring and developing the Help Desk Technician; establishing SLAs and shifting support from reactive to proactive.
- Operations & Automation: Automate onboarding/offboarding workflows, maintain asset inventories, and act as the final escalation point for critical IT issues.
What You Bring
Required
- 6+ years in IT systems administration or infrastructure engineering.
- Expertise in Entra ID (Azure AD), Intune MDM, and mixed Windows/macOS environments.
- Hands-on experience owning security controls, EDR tools (e.g., SentinelOne), and compliance audit readiness (SOC 2/ISO).
- Strong technical judgment, independent decision-making, and experience mentoring junior IT staff.
- Resident in/near Cork for hybrid office presence.
Preferred
- Experience in high-growth, SaaS, or Private Equity (PE)-backed environments.
- Scripting/automation skills (PowerShell, Bash, or Python).
- Familiarity with enterprise SaaS platforms (NetSuite, Salesforce, MS Purview) and vendor contract negotiation.
Company
Company facts come from this company's own listings. We only show what the postings themselves carry.