Perform advanced activities related to administration, operation, and maintenance of Microsoft Windows Server operating systems, Active Directory, Microsoft enterprise services, and associated applications. Resolve complex incidents, analyze root causes, implement improvements, execute operational routines, and provide specialized third-level support—ensuring availability, security, and continuity of critical IT services. **Responsibilities and Duties** * Provide third-level technical support for incidents and problems related to Windows Server operating systems, Active Directory (AD) services, network services, and Microsoft applications. * Administer and operate Microsoft Windows Server environments and services such as DHCP, DNS, File Services, WSUS, Group Policy Objects (GPOs), and print services. * Administer and maintain Active Directory, including users, groups, organizational units (OUs), policies, permissions, and replication. * Implement, administer, and support Microsoft Office 365 / Exchange / AD Connect / Azure AD environments. * Perform preventive and corrective maintenance routines on managed services and servers. * Conduct advanced analysis of logs, events, and performance metrics to identify root causes. * Support the client’s team in planning, deploying, and migrating Microsoft environments. * Manage permissions, security policies, auditing, and Windows-based authentication mechanisms. * Implement, configure, and administer failover clusters, high-availability services, and hybrid solutions (on-premises + Azure). * Maintain up-to-date technical documentation, including topologies, inventories, standards, and operational procedures. * Assess technical impacts of updates, patches, and infrastructure changes, coordinating scheduled deployments. * Develop and execute basic PowerShell automation scripts to improve operational routines. * Escalate, track, and validate service tickets with vendors and manufacturer support teams. * Assist Level 1 and Level 2 teams by providing specialized technical guidance and knowledge transfer. * Prepare technical reports and KPIs related to the Microsoft environment. * Participate in technical and alignment meetings with internal teams and clients. * Execute scheduled production operations in accordance with ITIL best practices and internal standards. * Comply with security policies, regulatory compliance requirements, and data governance standards. * Perform other duties consistent with this role. **Requirements and Qualifications** **Education:** Completed undergraduate degree in IT **or** any undergraduate degree supplemented by a postgraduate degree in IT. **Courses or Certifications:** Microsoft certifications such as Azure Administrator Associate (AZ-104), Identity and Access Administrator (SC-300), or equivalent are desirable; ITIL Foundation v3 or higher certification, with minimum 24 hours of training; Proficiency in Windows Server administration, DHCP, DNS, File Services, Storage Services, WSUS, and SCCM. **Professional Experience:** Proven experience in administration, management, deployment, or support of Windows Server environments; AD, DNS, DHCP, file and print services; messaging solutions (Exchange / Office 365); identity and authentication services; Microsoft Office 365 administration; and Azure Active Directory administration. **Additional Information** **Our Benefits:** Hapvida, Bradesco, or Unimed health insurance (subject to regional availability); Hapvida Odonto or Bradesco Dental dental insurance; Meal allowance or food voucher; Life insurance fully covered by Lanlink; Transportation voucher; TotalPass; Pharmacy discount program; University partnership discounts; Corporate Learning Platform; Welcome Kit for newborns; Moodar platform. Great to have you visiting us virtually! Shall we get to know each other better? For over 35 years, Grupo Lanlink has been building transformative experiences—not only for companies but for people’s lives—across all five regions of Brazil. We envision the future with the purpose of impacting lives and serving as a trusted harbor for innovation. Our workplaces are built by our employees, who wear the jersey proudly and create, day after day, a joyful and collaborative work environment. We believe trust is the foundation of our relationships—with our people and our clients—and that it is cultivated through practices such as: hiring and welcoming, inspiring, speaking, listening, thanking, developing, caring, celebrating, and sharing. We are many. We are diverse. \#WeAreLanlink. Now it’s your turn! Let us get to know you too? Join Lanlink today. **HEY, ALL OUR OPEN POSITIONS ARE PRIORITY FOR PERSONS WITH DISABILITIES (PCD)!**