Windows System Engineer

Description Company Description The Vertex Companies, LLC (VERTEX) is a $180M global consulting firm that integrates strategic advisory, project management, and dispute resolution services for organizations facing complex challenges in a world of risk. We embody our core values of embracing lifelong learning, operating with urgency, maximizing value, and driving collaboration to better outcomes for our clients, colleagues, and communities. Join us if you are looking for a career that offers you a chance to love what you do and deliver meaningful impact. Job Description Vertex is seeking a highly experienced Windows System Engineer to support our IT operations. This role is responsible for IT support and administration, from hands-on helpdesk and end-user assistance to the administration of enterprise-grade systems including Microsoft 365 E5, network infrastructure, security tooling, and backup solutions. The ideal candidate brings deep technical expertise, a service-oriented mindset, and a proven track record of supporting day-to-day business operations. Core Responsibilities Helpdesk & End User Support Serve as the escalation point for all HelpDesk tickets, ensuring timely and effective resolution. Provide hands-on and remote desktop support along with external MSP to end users across hardware, software, and connectivity issues. Ensure to work with MSP to solve issues in timely manner and maintain SLAs and end-user satisfaction. Document issues, resolutions, and procedures in the IT knowledge base. Onboard and offboard employees, including device provisioning and account lifecycle management. Business Application Support Support and troubleshoot line-of-business (LOB) applications used across departments. Coordinate with software vendors, MSP and internal stakeholders for application updates, patches, and integrations. Assist in deployment, testing, and validation of business application updates and new rollouts. Develop and maintain documentation for application configurations and support processes. Network Administration Work in close collaboration with the MSP to manage and maintain LAN/WAN infrastructure, encompassing switches, routers, firewalls, and access points. Monitor network performance, troubleshoot connectivity issues, and ensure uptime across all sites. Administer VPN solutions for remote access and virtual desktop applications. Support DHCP, DNS, and IP address management (IPAM) operations. Collaborate with MSP, ISPs and network vendors on circuit management and escalations. Microsoft 365 E5 Administration Administer the full Microsoft 365 E5 suite including Exchange Online, Teams, SharePoint, OneDrive, and Intune. Manage user identities, licenses, and roles via Azure Active Directory / Entra ID. Configure and enforce Conditional Access policies, MFA, and identity protection features. Administer Microsoft Defender for Endpoint, Defender for Identity, and Defender for Office 365. Manage Compliance Center configurations including DLP policies, retention labels, and eDiscovery. Monitor Microsoft Secure Score and drive improvement initiatives across the tenant. Backup & Disaster Recovery Administer and monitor enterprise backup solutions (e.g., Veeam, Azure Backup, or equivalent). Review and monitor regular backup validation, restoration tests, and ensure compliance with RPO/RTO objectives. Respond to and manage data recovery requests in a timely and accurate manner. Security Tools & Compliance Manage endpoint security tools including EDR/XDR platforms, antivirus, and patch management solutions. Monitor security alerts, investigate incidents, and coordinate response efforts. Conduct regular vulnerability assessments and drive remediation activities. Enforce security baselines and hardening standards across all Windows endpoints and servers. Support internal and external compliance audits ( SOC 2, GDPR, or similar). Business Process Support Work with business units to understand technology needs and tra slate them i