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The Greater Change

IT Manager - Operations & Infrastructure

System AdministrationConfirmed live in the last 24 hours
Full-timeDubai - United Arab Emirates

About the Job

Requirements

  • At least 5 years of experience in system administration, DevOps, or IT infrastructure management.
  • Expert-level Linux system administration, performance tuning, security hardening, and scripting with Bash and Python.
  • Experience managing AWS cloud infrastructure and hypervisor environments such as Proxmox VE.
  • Hands-on experience with Docker, container networking, and enterprise storage systems, including NAS, ZFS, and RAID configurations.
  • Experience managing vendor relationships, evaluating RFPs and SOWs, tracking licences, and executing hardware procurement.
  • Understanding of LAN/WAN, VPNs, VLANs, and firewalls, with hands-on hardware troubleshooting experience.
  • Proven experience installing, managing, and maintaining Smart Home systems, including servers, hubs, switches, and controllers, using protocols such as ZigBee, KNX, and Matter over Thread.
  • Working knowledge of Tailscale for managing virtual VPNs and mesh networks across sites, servers, and devices.
  • Experience configuring and managing IP camera systems and deploying sensors such as mmWave radar, presence sensors, and Bluetooth/BLE devices.
  • Hands-on electrical knowledge, including soldering, wiring, low-voltage power, and reading schematics, to assemble ad-hoc ESP32-based devices.
  • Experience coordinating with installers and contractors on on-site hardware installations, from design review through commissioning.
  • Hands-on experience setting up monitoring, alerting, and telemetry for networked devices and IoT/Smart Home systems.

Responsibilities

  • Lead the drafting, technical review, and management of RFPs and SOWs from software, hardware, and service vendors.
  • Review and optimise software licences, SaaS subscriptions, and developer tooling across the organisation.
  • Manage procurement pipelines for high-performance compute hardware, GPU setups, edge platforms including NVIDIA Jetson, ESP32, and Raspberry Pi, and lab equipment.
  • Monitor vendor SLAs, negotiate contract terms, and track IT budget allocations and spending.
  • Manage and provision AWS resources, including IAM, VPCs, EC2, S3, CloudWatch, and Cost Explorer, following security and cost-optimisation best practices.
  • Serve as the principal Linux administrator for on-premises, edge, and cloud server instances running Ubuntu, Debian, and RHEL.
  • Build, deploy, and manage containerised applications and local development environments using Docker and container registries.
  • Administer, maintain, and expand local virtualisation clusters using Proxmox VE or ESXi for staging, CI/CD runners, and test environments.
  • Manage NAS/SAN storage architectures such as TrueNAS and Synology to ensure high-speed data availability, multi-tier automated backups, and disaster recovery execution.
  • Maintain local hardware lab infrastructure, including managed network switches, VLANs, routers, firewalls, UPS power redundancy, and IoT hardware test benches.
  • Install, manage, and maintain Smart Home installations, including home servers, controllers, hubs, gateways, sensors, and smart switches or actuators.
  • Configure and support Smart Home devices and protocols including ZigBee, KNX, Matter over Thread, Z-Wave, and Wi-Fi/IP-based devices, including Thread border routers and KNX IP interfaces.
  • Work with installation vendors and electrical contractors to plan, schedule, and oversee hardware installations; review designs and SOWs; and sign off on commissioning and handover.
  • Design and manage local network infrastructure supporting Smart Home systems, including IoT VLAN segmentation, Wi-Fi coverage, PoE, firewall rules, and secure remote access through Tailscale tailnets, ACLs, subnet routers, and exit nodes.
  • Configure and manage camera systems, including IP/PoE cameras, NVRs, and RTSP/ONVIF streams, covering placement, recording and retention policies, and secure access.
  • Deploy, calibrate, and maintain mmWave radar and presence/occupancy sensors, Bluetooth/BLE beacons and proxies, and motion, contact, and environmental sensors.
  • Build and assemble ad-hoc ESP32-based devices through soldering, wiring sensors and relays, designing power supplies, and fitting enclosures; flash and maintain firmware such as ESPHome and Arduino/ESP-IDF.
  • Oversee monitoring and telemetry from installed systems, including device health, uptime, alerting, logs, and metrics using tools such as MQTT, Prometheus, and Grafana; troubleshoot, update firmware, and conduct preventive maintenance.

Desired Qualifications

  • Experience procuring and configuring AI/ML hardware, such as GPU servers, workstation setups, and edge AI nodes.
  • Familiarity with Infrastructure-as-Code tools such as Ansible or Terraform.
  • Experience with Smart Home platforms such as Home Assistant and ETS for KNX programming.
  • Relevant certifications such as AWS Certified Solutions Architect, Red Hat Certified Engineer (RHCE), CISSP, or KNX Partner certification.

About the Company

The Greater Change

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