Senior System Admin (IT)

Job Description

Lead the design and rollout of AWS and Azure infrastructure solutions, working with internal teams and external vendors to align with organizational goals.

Administer and optimize Active Directory across multiple sites, including user management, policy enforcement, and implementation of security controls like MFA and conditional access.

Drive cloud efficiency through automation and native tools, balancing performance with cost and security.

Manage Windows and Linux server environments, ensuring regular updates, performance tuning, and high availability / disaster recovery readiness.

Oversee network configurations using Cisco Meraki and collaborate with cybersecurity to enhance network security.

Proactive System Administration

Work closely with the cybersecurity team to ensure compliance with standards such as ISO 27001, NIST, and CIS; perform regular audits and risk assessments.

Monitor infrastructure health and performance using tools like Prometheus and Grafana; create dashboards to track key metrics.

Develop and maintain robust backup and disaster recovery procedures for both cloud and on-premise systems, with regular testing.

Automate routine tasks using Python or PowerShell and mentor junior team members in automation practices.

Driving Improvements and Change

Conduct root cause analyses, implement permanent solutions, and share lessons learned to avoid repeated incidents.

Lead infrastructure and end-user projects, coordinating across departments to ensure smooth execution.

Manage vendor relationships, including contract negotiations and procurement decisions to optimize service and cost.

Team Leadership and Mentorship

Support the development of junior team members through mentoring and skills enhancement.

Act as a senior technical expert, resolving complex technical challenges and ensuring clear communication with stakeholders across departments.