Sr. Systems & Security Administrator

Responsibilities:

• Infrastructure, Cloud & Enterprise Systems
• Administer and support NOBULL's core technology platforms, including Microsoft 365, Entra ID, Intune, Azure, AWS, Google Workspace, Freshservice, Cisco Meraki, Cloudflare, Zscaler, Huntress, Action1, Slack, Grafana, and other business-critical applications.
• Manage platform lifecycle activities, including configuration, licensing, integrations, upgrades, monitoring, support, and retirement.
• Ensure systems remain secure, reliable, scalable, and aligned with business requirements.
• Monitor platform health, troubleshoot issues, and drive continuous improvement across the technology environment.
• Identity, Endpoint & Security Administration
• Manage identity, access, and endpoint security, including onboarding, offboarding, SSO, MFA, Conditional Access, privileged access, device compliance, security policies, and access governance.
• Administer endpoint protection, vulnerability management, patching, certificate management, security monitoring, access reviews, and privileged account controls.
• Investigate and respond to security alerts, incidents, and operational issues.
• Partner with security advisors, managed service providers, and vendors to strengthen NOBULL's security posture and support compliance, audit, risk management, and control validation activities.
• Automation, AI & Operational Excellence
• Develop automations, workflows, and integrations using PowerShell, Microsoft Graph, APIs, Python, and similar technologies.
• Administer approved AI platforms and implement appropriate security, governance, and data protection controls.
• Develop and maintain technical documentation, standards, runbooks, diagrams, and operational procedures.
• Support backup, disaster recovery, business continuity, and incident response planning and testing.
• Vendor & Technology Management
• Provide technical guidance and mentorship to IT team members and external service providers.
• Lead technical initiatives and coordinate work across internal stakeholders, vendors, managed service providers, and technology partners.
• Participate in platform evaluations, vendor selection, and technology lifecycle decisions.
• Help establish technical standards, operational processes, and priorities for NOBULL’s infrastructure and security environment.
• Serve as a Tier 2 and Tier 3 escalation point for complex infrastructure, security, identity, endpoint, and enterprise application issues.
• Contribute to the continued maturity of NOBULL's technology operations and evolution of the IT function.
• In addition to the responsibilities listed above, the individual may be required to perform other duties as assigned in support of business objectives.

Qualifications:

• Required:
• Bachelor's degree in Information Technology, Computer Science, Cybersecurity, or related field, or equivalent practical experience.
• 7+ years of progressive experience in systems administration, cloud infrastructure, cybersecurity, or enterprise technology.
• Strong hands-on experience with Microsoft 365, Entra ID, Intune, Azure, Cisco Meraki, Cloudflare, and Zscaler.
• Experience supporting AWS, Google Workspace, enterprise SaaS applications, and cloud-based environments.
• Strong understanding of identity and access management, endpoint management, networking, and cybersecurity best practices.
• Experience with vulnerability management, patching, security monitoring, incident response, and access governance.
• Experience using PowerShell, Microsoft Graph, APIs, Python, or similar technologies to automate operational processes.
• Experience administering IT service management platforms and supporting incident, change, and service management processes.
• Strong troubleshooting, documentation, communication, and organizational skills.
• Proven ability to independently manage critical platforms, lead technical initiatives, and resolve complex issues.
• Proactive, self-motivated, and accountable, with a strong sense of ownership and attention to detail.
• Strong problem-solving skills, sound judgment, and a continuous improvement mindset.
• Ability to build trusted relationships, collaborate effectively across teams, and communicate technical concepts clearly to technical and non-technical audiences.
• Preferred:
• Experience supporting enterprise AI platforms and AI governance initiatives.
• Experience supporting SOC 2, NIST CSF, NIST AI RMF, ISO 27001, ISO/IEC 42001, or similar frameworks.
• Experience with Kubernetes, containerized workloads, or cloud-native services.
• Relevant Microsoft, AWS, security, infrastructure, or IT service management certifications.

Additional information