SENIOR SYSTEMS ADMINISTRATOR (HEAD OFFICE) – Southsea Investments Pvt Ltd 109 views

Key Responsibilities

• Serve as the primary system administrator for Microsoft Dynamics 365 Business Central (on-premise), including all configuration, user management, and functional support across Finance, Purchasing, Inventory, and Retail modules.
• Administer LS Central retail extensions, including POS terminal management, item and pricing configuration, replenishment, and store operations support.
• Manage and optimize the Adjust Cost – Item Entries job and cost adjustment processes to maintain accurate inventory costing across all locations.
• Oversee Business Central upgrade projects, including compatibility assessment of custom AL extensions and coordination with implementation partners.
• Translate business requirements into effective system configurations, workflow improvements, or escalations to external BC/LS Retail partners.
• Produce and maintain functional documentation, user training materials, and change management communications related to ERP updates.
• Administer Microsoft SQL Server instances supporting Business Central, including performance tuning, index maintenance, and capacity planning.
• Manage database backup schedules, recovery procedures, and disaster recovery readiness – verifying restores regularly.
• Investigate and resolve database-level issues such as blocking, slow queries, table bloat, and log growth affecting ERP performance.
• Support UAT database provisioning, including data reduction, anonymization, and environment refresh processes.
• Administer and maintain all network infrastructure across a multi-site retail network, including LAN, WLAN, WAN, and SD-WAN/VPN connectivity between branches.
• Manage Ubiquiti UniFi wireless infrastructure (access points, switches, controllers/OS Server) across all sites.
• Overseer server infrastructure including physical and virtualized environments (Proxmox, Hyper-V), ensuring high availability for business-critical systems.
• Administer Active Directory, DNS, DHCP, and Group Policy across the organization.
• Administer Sophos XGS Next-Gen Firewalls across all sites, including firewall rules, IPS policies, VPN configuration, and firmware management.
• Manage Sophos Central Endpoint Protection across all devices, ensuring policy compliance, threat response, and up-to-date definitions.
• Implement and enforce IT security policies, access controls, and best practices to protect company data and retail systems.
• Maintain Windows Server environments (2016/2019/2022), including patching, performance monitoring, and capacity management.
• Deploy and manage monitoring solutions to ensure proactive visibility of infrastructure health, backup status, and critical services.
• Manage IT asset lifecycle across all sites – procurement, deployment, maintenance, and decommissioning.
• Develop and maintain internal tools, scripts, and automation to improve operational efficiency – including PowerShell, Python, or Node.js solutions.
• Build and support integrations between Business Central and other business systems where required.
• Evaluate and recommend new technologies, open-source tooling, or self-hosted solutions appropriate for the business environment.
• Lead and mentor junior IT staff, providing technical guidance and structured escalation paths.
• Produce and maintain comprehensive documentation for all IT systems, processes, and procedures – including network diagrams, and DR plans.
• Act as the primary liaison with external vendors, ISPs, and software partners.

Requirements

• Minimum 5-7 years of progressive experience in IT systems administration or a comparable senior IT role.
• Demonstrable hands-on experience administering Microsoft Dynamics 365 Business Central in a production environment – this is a mandatory requirement. Candidates without verifiable BC experience will not be considered.
• Experience with LS Central (LS Retail) or a comparable retail ERP/POS platform is highly advantageous.
• Proven track record managing multi-site network infrastructure in a retail or similarly distributed environment.
• Microsoft Dynamics 365 Business Central: functional administration, module configuration (Finance, Inventory, Purchasing, Retail), user management, and troubleshooting.
• Microsoft SQL Server: query writing (T-SQL), index maintenance, backup/restore, performance analysis.
• Active Directory: user and group management, GPOs, DNS, DHCP.
• Networking: TCP/IP, routing, switching, VLANs, WAN/VPN technologies.
• Sophos XGS Firewalls: configuration, rule management, VPN, and threat analysis.
• Sophos Central Endpoint Protection: policy management, threat response.
• Windows Server (2016, 2019, 2022): administration, patching, performance tuning.
• Ubiquiti UniFi: wireless and switching infrastructure administration.
• LS Central administration (POS configuration, replenishment, retail workflows).
• Scripting or development experience: PowerShell, Python, AL/C/AL, or JavaScript/Node.js.
• Virtualization: Proxmox VE, VMware, or Hyper-V.
• Containerization: Docker / Docker Compose.
• Microsoft Azure or M365 administration.
• Monitoring tools: CheckMK, Zabbix or similar.
• Methodical and analytical – investigates data before acting; does not guess.
• Resourceful – able to devise pragmatic solutions under real-world constraints.
• Precise communicator – able to document findings and explain technical issues clearly to non-technical stakeholders.
• Self-directed – manages multiple concurrent priorities with minimal supervision.
• Collaborative – works constructively with vendors, business users, and colleagues.
• Microsoft Certified: Dynamics 365 Business Central Functional Consultant Associate
• Microsoft Certified: Azure Administrator or related M365 certification
• Sophos Certified Engineer or Sophos XGS Firewall certification
• CompTIA Network+ or CompTIA Security+
• CCNA or equivalent networking certification

How to Apply