Systems Administrator at InterSwitch

Interswitch Limited is an integrated payment and transaction processing company that provides technology integration, advisory services, transaction processing and payment infrastructure to government, banks and corporate organizations. Interswitch, through its “Super Switchâ€Â provides online, real-time transaction switching that enable businesses and individuals have access to their funds across the 24 banks in Nigeria and across a variety of payment channels such as Automated Teller Machines (ATMS), Point of Sale (PoS) terminals, Mobile Phones, Kiosks, Web and Bank Branches.

Job Summary

• To facilitate the formulation and execution of transformational strategies, provide insights for the Interswitch Backbone to ensure alignment with the corporate strategy is achieved.

DUTIES AND 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 & Execute 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.

Academic Qualification/(s):

• Minimum of bachelor’s degree

Core Competencies:

• Exchange Server 2013-2019, Exchange Online, Mail Routing and mail flow troubleshooting
• Microsoft 365, Microsoft Intune / EMS, Online Protection, DLP, Information Protection Suite, Azure MFA
• Server, Azure AD Sync, ADFS, ADFS Proxy & Windows Azure application and services. ? • Microsoft System Center
• Voice Over IP, SIP Technologies, Cisco Collaboration Solutions (Call Manager, Contact Center Express, ? Voice Gateways, CUBEs, Expressways, SBCs)
• Microsoft Teams, Direct Routing. Audio Conferencing,
• Active Directory, Group Policies, IIS, Microsoft PKI Certificates, PowerShell, Scripting
• Windows Servers (2012 R2, 2016, 2019) Management, Clustering, Load Balancing
• VMWare EXSi/vCenter, VMWare Horizon 7/8
• Load balancing and WAF Technologies (KEMP VLM Preferred)
• ITIL Fundamentals
• Advanced PowerShell scripting

Professional Qualification(s):

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

CERTIFICATIONS:

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

Experience (Number of relevant years):

• 3-5 years of Systems Administration experience

Method of Application