Job description

PURPOSE OF THE POSITION:

We are looking for a Senior IT Administrator to manage and secure our Windows, macOS, and Linux environments, ensure compliance with ISO 27001, and optimize AWS cloud infrastructure.

You will play a key role in IT security, network management, Linux/Windows system administration, employee onboarding/offboarding, and cloud service optimization.

Key Responsibilities:

1. IT Security & ISO 27001 Compliance

• Draft and implement IT policies for ISO 27001 certification.

• Manage endpoint security:

• Windows Defender for Endpoint (MDR)

• CrowdStrike Falcon (EDR/XDR)

• BitLocker/FileVault encryption

• Conduct security audits, risk assessments, and vulnerability scans.

• Implement IAM, SSO, MFA, Zero Trust Security policies.

• Harden Linux/Windows servers against cyber threats.

2. Windows, macOS & Linux System Administration

• Administer Windows Server (2016/2019/2022), Active Directory, Group Policy, DNS, DHCP, Hyper-V.

• Manage macOS devices using Apple Business Manager and MDM (Jamf, Intune, or Kandji).

• Linux Administration:

• Patch management & security hardening

• User management, ACLs, Sticky Bit

• LVM (Logical Volume Management) & SWAP management

• NFS & Samba for file sharing

• HAProxy for load balancing

• Bind service (DNS configuration)

3. Cloud & Infrastructure Management • Administer AWS Cloud Infrastructure:

• EC2, S3, IAM, VPC, CloudWatch, Auto Scaling, Route 53

• Linux-based web and application servers

• Manage firewalls & VPN solutions (Fortinet, SonicWall, Palo Alto, Sophos).

• Optimize network performance, storage, and load balancing.

4. Employee Onboarding & Offboarding

• Automate user provisioning/deprovisioning with PowerShell, AWS Lambda, or Bash scripting.

• Manage user accounts, email access, and security permissions.

• Maintain IT asset inventory & system access controls.

5. IT Support & Troubleshooting

• Provide L1/L2 support for Windows, macOS, and Linux issues.

• Troubleshoot network, hardware, and software problems.

• Maintain remote access solutions (VPN, RDP, Citrix).

Preferred Qualifications:

• Bachelor’s degree in Computer Science, IT, or a related field.

• Certifications (preferred but not mandatory):

• ISO 27001 Lead Implementer / Lead Auditor

• Linux Foundation Certified System Administrator (LFCS) / RHCSA

• AWS Certified SysOps Administrator

• Microsoft Certified: Azure Administrator Associate / M365 Administrator

• Jamf Certified Tech / Apple Certified Support Professional

• CrowdStrike Falcon Administrator Certification

• Cisco CCNA / Fortinet NSE / Palo Alto PCNSA

• Strong expertise in Windows, macOS, Linux, Office 365, AWS, and security tools.

Why Join Us?

• Work on cutting-edge cloud & cybersecurity technologies.

• Be part of a fast-growing SaaS company leading ISO 27001 compliance.

• Competitive salary and career growth opportunities in Linux, AWS, and security.

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