Systems Administrator at Interswitch

Job Description
In this role, you will:

• Maintain and operate Windows and Linux systems, including deployment, configuration, testing, upgrades, patching, performance tuning, monitoring and troubleshooting to ensure all systems are reliable and secure.
• Maintain and manage hybrid exchange mail services and infrastructure. Communicate effectively with colleagues, clients and vendors, providing both professional and technical feedback.
• Develop, maintain and execute technical checklists and documentation to create repeatable processes across the team.
• Implement best practices in cyber security to protect data and reduce risk.
• Monitor and maintain endpoint protection technologies.
• Work with Sales and Customer service teams to support business - including identifying challenges on the horizon and supporting constant improvement.

Responsibilities

• Expert in Active Directory, Group policies, Microsoft Certificate PKI Services
• Expert in Exchange Server 2013-2019 advanced administration
• Experience with Office 365, Microsoft Intune / EMS, Online Protection, DLP, Information Protection Suite, MFA Applications (Forti-Authenticator preferred), Azure AD Sync, ADFS, ADFS Proxy & Windows Azure application and services
• Expert in System Center and assisting other Administrators as required on a daily or timely basis
• Solid knowledge of networking protocols (HTTP/S, S/FTP, TCP/IP, DNS, DHCP, etc)
• Manage VOIP and Collaboration Suites
• Certificate Integration within Windows server environment
• Provide technical leadership for upcoming projects
• Lead design updates and architecture revisions
• Address high severity issues and service outages
• Review periodic reports of server health, resource usage, user experience, and overall environment performance to determine next steps and upgrade paths
• Review change control requests which impact Windows environment
• Raise support tickets with the appropriate vendor to resolve critical issues
• Experience working with Windows 2008 R2, 2012 R2 & 2016 OS
• Expert in Microsoft Windows clustering, load balancing and experience in troubleshooting technical problems involving software and operating systems & includes desktop OS
• Develop & Executes PowerShell or Command Shell commands and experience in scripting
• Familiarity with Physical server hardware and VM environment
• Assists in the monthly patching of server systems which is part of the maintenance activity
• Coordinating with Application teams for service planning and deployment across the organization
• Experience writing technical documentation
• Provide 24x7 support on critical systems
• Works efficiently with minimal guidance from Lead administrators.

Requirements

• In-depth knowledge of administrating Microsoft Windows servers and active directory, domains and sites
• Expertise in at least three of the following areas: Networking, Windows Servers, Virtualization and Desktop Infrastructure
• Management of Active Directory, Group Policy, Remote Desktop Services and MFA (Microsoft Authenticator, Forti Token, Duo)
• Administration of cloud computing resources (Azure, AWS, and Office 365)
• Enterprise voice - CUCM, CCX and IVR related technologies
• Backup system, data recovery and operations (Commvault, snapshots)
• Administration of physical servers and laptops
• Virtualization Technologies (VMware, Hyper-V)
• Database administration (MS SQL, Postgre)
• Experience managing mission-critical infrastructure and ERP systems
• Supporting the technology needs of a geographically diverse and hybrid environment.

Experience:

• Minimum of 3 years’ experience in managing critical Microsoft, VMware environment
• Minimum of 3 years’ experience in managing VOIP systems
• Working knowledge of event, incident & problem management processes and tools.

Certifications:

• Microsoft Certified Systems Engineer (MCSE) – Messaging
• Microsoft Certified Systems Administrator (MCSA)
• Cisco Certified Network Associate (CCNA) - Collaboration
• Professional VMWare Horizon 7.