Dan Brennan

Senior Systems Administrator with over 7 years of experience managing IT infrastructure, endpoint security, and software deployments across complex, multi-tenant environments. Possesses a strong foundation in both technical problem-solving and client communication, frequently acting as the bridge between development teams, third-party vendors, and end-users. Highly adept at translating client feature requests into engineering requirements, managing web platforms, and leading successful software rollouts to ensure high system availability and smooth user adoption.

Senior Systems Administrator at Praxes Medical Group & Mentor Clinic (2023-08 – Present)

• Serve as the technical lead for key enterprise accounts, managing specific platform modules and owning the ongoing technical relationship with major clients.
• Act as the primary liaison between clinical operations and the development team, translating client feature requests and bug reports into actionable engineering tickets to drive product improvements.
• Collaborate directly with the Product Owner to oversee platform automation, streamlining the processing of service requests for high-volume accounts.
• Administer the public-facing Content Management System (Wix) for Mentor Clinic, overseeing site architecture, custom DNS configurations, and access controls to ensure high availability.
• Lead the configuration, testing, and administration of IT infrastructure, endpoint security, and software environments across two distinct healthcare organizations.
• Design comprehensive implementation materials and deliver targeted training sessions for clinical staff to ensure rapid platform adoption and minimize user friction.

Systems Administrator at Klick Health (2022-07 – 2023-08)

• Supported full-lifecycle hardware and software implementations across a fast-paced corporate environment of 1,800+ active endpoints.
• Maintained server environments, updated user access controls, executed enterprise patch management, and monitored overall system health and security baselines.
• Created step-by-step implementation guides and internal knowledge base documentation, allowing non-technical staff to navigate newly deployed company software efficiently.

Systems Administrator at Cloud Wiz (2021-11 – 2022-07)

• Served as the primary technical point of contact managing infrastructure, networks, and software deployments for multiple independent client environments encompassing over 600 endpoints.
• Partnered directly with third-party software vendors to coordinate testing support, troubleshoot complex system integrations, and minimize client downtime during major updates.
• Conducted technical reviews with account managers and clients, translating complex IT requirements into plain language and guiding stakeholders through infrastructure upgrades.

IT Support Specialist at Pearson Canada / VUE (2020-11 – 2021-11)

• Provided direct consultative support and platform guidance to educational institutions, troubleshooting digital platforms and teaching non-technical instructors how to navigate the software.
• Resolved complex user-reported configuration errors, working closely with internal engineering teams to document bugs and implement permanent fixes.

Unit Aide (Emergency Department) at Hospital for Sick Children

Provided front-line operational support in a high-stress environment, building a foundational understanding of managing urgent workflows and delivering high-stakes support.

Set Decorator / Assistant at Film & Television Industry

Managed logistical timelines and coordinated resources in fast-paced, project-based environments.

Diploma in Commerce – Nova Scotia Community College

Diploma in IT Administration – Trios College