Note: The job is a remote job and is open to candidates in USA. Dexian is a leading provider of staffing, IT, and workforce solutions with over 12,000 employees and 70 locations worldwide. They are seeking an experienced Senior Microsoft Systems Administrator to lead the administration, security, and optimization of enterprise Microsoft cloud infrastructure in a fast-paced, highly regulated remote environment.
Responsibilities
- Administer and maintain enterprise Microsoft 365, Azure, Entra ID, Intune, Exchange Online, and Microsoft security platforms
- Manage Zoom enterprise environment , including Zoom Phone, AI capabilities, SMS, and collaboration tools
- Lead vulnerability management, system patching, endpoint security, and security hardening initiatives
- Support tenant migrations, Microsoft environment integrations, and onboarding of newly acquired business entities
- Execute data migration activities using tools such as BitTitan, ShareGate, and related migration platforms
- Monitor and optimize identity access management, authentication policies, conditional access, and endpoint compliance
- Partner with external managed service providers to support escalations, infrastructure maintenance, and operational excellence
- Provide responsive technical support within a fully remote business environment requiring high-touch customer service
- Ensure infrastructure aligns with security best practices, compliance standards, and operational requirements
- Develop documentation, system procedures, and technical recommendations for continuous improvement
Skills
- 5+ years of hands-on experience administering Microsoft 365 and Azure enterprise environments
- Strong expertise with Entra ID (Azure AD), Intune, Exchange Online, Microsoft Defender, and endpoint management
- Experience managing enterprise Zoom environments, including telephony solutions
- Proven background in vulnerability remediation, patch management, and security administration
- Experience supporting Microsoft tenant migrations, system integrations, or acquisition onboarding projects
- Strong knowledge of identity management, MFA, access controls, endpoint security, and cloud governance
- Experience working with MSPs, third-party infrastructure teams, or managed services environments
- Excellent communication, presentation, and stakeholder management skills
- Experience in financial services, wealth management, banking, or other regulated industries
Company Overview
Dexian provides services for staffing, talent development, and consulting, with a focus on technology, finance, and project management. It was founded in 1994, and is headquartered in Mclean, Virginia, USA, with a workforce of 1001-5000 employees. Its website is https://dexian.com.Company H1B Sponsorship
Dexian has a track record of offering H1B sponsorships, with 15 in 2026, 65 in 2025. Please note that this does not guarantee sponsorship for this specific role.