Systems Administrator (IT Infrastructure) 1 opening IT & Infrastructure Bengaluru 3–8 yrs →

Ci4; Bengaluru; On-site; INR 700,000 - 1,500,000; Full time

Job summary

Ci4 is seeking a hands-on Systems Administrator to own our IT end to end in Bengaluru. You will design and build the infrastructure from the ground up and run it securely for an engineering-heavy team working on defense and underwater systems.

You will set up standalone in-house servers, manage Microsoft 365 and Google Workspace, handle licenses and assets, and document processes. The role demands independent, proactive work in a fast-growing startup environment.

Qualifications

• Hands-on setup of on-premise servers (Windows/Linux) with backups and patching.
• Experience administering Microsoft 365 and Google Workspace.
• Strong networking knowledge: TCP/IP, DNS, DHCP, VPNs, firewalls.
• Ability to document systems and runbooks clearly.
• Capability to work independently in a fast-moving small team.

Responsibilities

• Set up and maintain standalone in-house servers.
• Manage IT asset inventory and software licenses.
• Administer networking, VPNs, and remote access.
• Onboard/offboard employees with access control.
• Advise leadership on IT tooling and scaling.
• Develop documentation and policies.

Skills

Systems administration

Microsoft 365

Google Workspace

Networking fundamentals

Troubleshooting

Security practices

Documentation

Independent work

Tools

Windows Server

Linux

Intune

Entra ID

PowerShell

Bash

VPN/Firewall

NAS/Storage

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

What we're looking for

• 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
• Relevant certifications (e.g., Microsoft 365, CompTIA, CCNA, RHCSA)

About Ci4

Building Intelligent, Unmanned Platforms-Ci4 builds autonomous platforms and the AI autonomy stack that runs them to handle complex, dangerous or repetitive tasks. Our solutions span a range of applications in the maritime and land domains.