Systems Administrator – Cloud, Infrastructure and Cybersecurity

Vista IT Solutions is building a high-performance IT operations team to support our 24×7 Managed Services delivery. We are hiring an experienced Systems Administrator with proven skills in Office 365, Azure, network security, virtualization, disaster recovery, and endpoint protection.

This role requires strong ownership, deep technical expertise, and the ability to contribute within a globally distributed support structure. You will collaborate closely with team members across geographies to ensure high-quality service delivery.

Department: Managed IT Services & Security Operations
Location: Global MSP Team (24×7 Support Environment)

Requirements

Key Responsibilities

• Administer and support Microsoft 365 tenant environments including Exchange Online, Teams, OneDrive, SharePoint, Intune, and compliance settings
• Manage Azure services including virtual networks, resource groups, Azure AD, backup vaults, and security baselines
• Maintain VMware-based virtualized infrastructure (HP/Dell servers)
• Configure and secure SonicWall firewalls and Cisco switches; manage VLANs, routing, access control, and VPNs
• Deploy and manage EDR/MDR using Malwarebytes or equivalent tools
• Execute and monitor backup and disaster recovery operations using Veeam and Wasabi
• Handle patching, firmware updates, and RMM tool management (Barracuda RMM currently used)
• Oversee 3CX VoIP systems and ensure QoS, failover, and provisioning
• Implement and maintain cybersecurity best practices (Zero Trust, MFA, security policy hardening, threat response)
• Participate in 24×7 shift coverage, escalations, and weekend/on-call rotations as part of a global MSP support model
• Document configurations, SOPs, diagrams, and client-specific runbooks

Required Skills & Experience

• 4+ years as a Systems Administrator or similar hands-on infrastructure/security role
• Strong knowledge of Microsoft 365 & Azure (administration, security, and compliance settings)
• Experience with VMware (ESXi, vCenter) virtualization platforms
• Proficiency with SonicWall firewalls, Cisco switching, routing protocols, and VPNs
• Hands-on experience with Veeam backup and Wasabi cloud storage
• Familiarity with endpoint security tools and threat response procedures
• Strong documentation, communication, and task ownership capabilities
• Experience working in an MSP or multi-client IT service environment is preferred

Preferred/Bonus Skills

• Azure certifications (AZ-104, SC-200) or M365 (MS-102)
• Cisco or SonicWall certifications (CCNA, SNSA)
• Experience evaluating and transitioning RMM tools
• Familiarity with compliance frameworks (HIPAA, SOC 2)
• Mentoring or onboarding experience for technical team members

What We Offer

• A globally collaborative work environment and impactful client-facing projects
• Opportunity to work with enterprise-grade technologies and diverse client stacks
• Career growth and role evolution as we expand managed services and cybersecurity functions
• Flexibility in rotational shifts within a stable, process-oriented team

This is position is for night shift and work from office.