Systems Administrator (IT Infrastructure)

Ci4 - Autonomous Intelligence; Bengaluru; On-site; INR 900,000 - 1,300,000; Full time

Job summary

Ci4 - Autonomous Intelligence in Bengaluru seeks a hands-on Systems Administrator to own IT end to end for an engineering‑heavy team working on defense and underwater systems.

You will design and build the IT environment from the ground up, set up resources, and keep everything running securely and reliably as the company grows. Experience with Microsoft 365, Google Workspace, and on-prem servers is essential.

Qualifications

• 5+ years of experience as a systems administrator with end-to-end infra design.
• Hands-on Microsoft 365 and Google Workspace administration.
• Experience deploying on-premise servers (Windows or Linux) with backups.
• Solid networking knowledge: TCP/IP, DNS, DHCP, VLANs, firewalls, VPN.
• Experience managing software licenses, SaaS subscriptions, and IT assets.
• Strong troubleshooting and documentation skills.
• Ability to work independently in a small, fast-moving team.

Responsibilities

• Set up and maintain in-house servers, OS installation, patching, backups, monitoring.
• Administer Microsoft 365 and Google Workspace: tenants, user and group lifecycle, email, shared drives, permissions, and sharing policies.
• Design data and compute sharing with access controls and audit trails.
• Manage software licenses and subscriptions for AI tools and engineering/productivity software.
• Maintain IT asset inventory for laptops, servers, networking gear, printers, and other hardware.
• Manage office networking: LAN/Wi‑Fi, firewall, VPN and remote access, printers and shared devices.
• Onboard/offboard employees with accounts, devices and access provisioned and revoked promptly.
• Implement and document security basics: MFA, password policies, device encryption, backup and recovery procedures.
• Act as the point of contact for IT support, troubleshoot issues, and coordinate with vendors.
• Write and maintain clear documentation, runbooks and IT policies.
• Advise leadership on IT tooling, cost and scaling needs as the company grows.

Skills

Systems administration

Microsoft 365

Google Workspace

Networking

IT asset management

Troubleshooting

IT security

Documentation

Independent work

Tools

Windows Server

Linux

Active Directory

Intune

PowerShell

Bash

Python

Proxmox

VMware

Hyper-V

NAS

VPN

Job description

Ci4 builds autonomous platforms and the AI autonomy stack that runs them, handling complex, dangerous or repetitive tasks across maritime and land domains. We are looking for a hands‑on Systems Administrator to own our IT end to end: designing and setting up the infrastructure as the company grows, and then running it reliably and securely.

This is not a help‑desk role. You will build our IT environment from the ground up, decide how resources are set up and shared, and keep everything running for an engineering‑heavy team working on defense and underwater systems.

What you will do:

• Set up, configure and maintain our standalone in‑house servers, including OS installation, patching, backups, monitoring and access control
• Administer Microsoft 365 and Google Workspace: tenants, user and group lifecycle, email, shared drives, permissions, and sharing policies
• Design and implement how files, data and compute resources are shared across teams, with sensible access controls and audit trails
• Manage software licensing and subscriptions, including AI tools and engineering/productivity software: procurement, renewals, seat allocation and distribution to the right people
• Maintain the IT asset inventory, covering laptops, workstations, servers, printers, networking gear, peripherals and other hardware, along with assignment, tracking and lifecycle (onboarding, replacement, retirement)
• Manage office networking: LAN/Wi‑Fi, firewall, VPN and remote access, and printers and shared devices
• Onboard and offboard employees with accounts, devices and access provisioned and revoked promptly
• Implement and document security basics: endpoint protection, MFA, password policies, device encryption, backup and recovery procedures
• Act as the point of contact for IT support, troubleshoot issues, and coordinate with vendors
• Write and maintain clear documentation, runbooks and IT policies
• Advise leadership on IT tooling, cost and scaling needs as the company grows

Required:

• 5+ years of experience as a systems administrator or IT administrator, with demonstrated experience setting up infrastructure rather than only maintaining it
• Hands‑on administration of Microsoft 365 and Google Workspace (admin consoles, identity, email, storage, sharing and permission management)
• Experience setting up and managing on‑premise servers (Windows Server and/or Linux), including user management, file sharing, backups and patching
• Solid understanding of networking fundamentals: TCP/IP, DNS, DHCP, VLANs, firewalls, VPN
• Experience managing software licenses and SaaS subscriptions, and tracking IT assets and hardware inventory
• Strong troubleshooting skills across hardware, OS, network, and peripherals including printers
• Working knowledge of IT security practices: MFA, endpoint protection, access control, encryption, backup and recovery
• Clear written communication and the ability to document systems and processes
• Ability to work independently, prioritise, and own outcomes in a small, fast‑moving team

Nice to have:

• Experience with Active Directory / Entra ID, SSO, and device management tools (Intune, MDM)
• Experience supporting engineering teams, including GPU workstations or compute servers
• Scripting and automation skills (PowerShell, Bash, or Python)
• Familiarity with virtualization (Proxmox, VMware, Hyper‑V) and NAS/storage systems
• Experience in a defense, aerospace, or other security‑sensitive environment, with an understanding of data‑handling and compliance requirements