Senior Infrastructure Engineer (Wintel, Messaging & Cloud Ops)

Senior Infrastructure Engineer (Wintel, Messaging & Cloud Ops)

Location: Client Premises, Dubai, UAE

Salary: AED 11,000 to 14,000 per month

Benefits: Work visa, air tickets, medical insurance, gratuity, paid time off

Experience Required: Minimum 5 years of relevant work experience

As a Senior Infrastructure Engineer, you will be responsible for the stability, integrity, and seamless operation of our airline client's core Wintel and Messaging platforms. In this enterprise-grade role, you will manage a complex hybrid environment, bridging on-premise legacy systems with public cloud infrastructure (AWS/Azure). Your mission is to optimize and secure the digital workspace for a global workforce, ensuring high availability of communication and identity services around the clock.

Key Responsibilities

Messaging & Collaboration: Act as the Subject Matter Expert for Exchange Hybrid environments, managing Exchange Online and on-premise servers.

Oversee OneDrive, SharePoint, and the broader Office 365 suite.

Identity & Security: Lead Windows Active Directory (AD) administration and

manage Azure Enterprise Applications, including permission reviews and service

principal governance. Implement and maintain Privileged Access Management

(PAM/CyberArk).

Infrastructure Services: Provide expert-level administration for Infoblox

(DNS/DHCP), SFTP, and complex File Server environments (AWS FSx, DFSR, and

SMB shares). 

Cloud & Virtualization: Deploy and manage cloud resources within AWS (EC2, RDS, S3, VPC) and optimize virtual desktops via Citrix DaaS.

Systems Administration: Execute L3 support for Windows and RHEL OS, including patching, system hardening, and upgrades in compliance with global aviation security standards.

Hardware Oversight: Support physical compute infrastructure, specifically Cisco UCS, ensuring hardware health and performance.

Operational Excellence: Set standards for monitoring and maintenance within

a 24/7 rotational shift model, ensuring zero downtime for mission-critical airline operations.

Required Skills & Experience

Wintel & Directory Services: 5–8 years of expert experience in Windows AD, DNS, DHCP, and Windows Server technologies.

Messaging Expert: Proven track record in managing Exchange Hybrid and Office

365 migrations/operations at scale.

Networking & Storage: Advanced proficiency in Infoblox, SFTP, and distributed file systems (DFSR/AWS FSx).

Cloud & Security: Expertise in Azure AD (Entra ID) App registrations and

permissions; hands-on experience with AWS Cloud Operations and PAM

(CyberArk preferred).

Modern Workspace: Proficiency in Citrix DaaS and RHEL IDAM solutions.

Technical Breadth: Knowledge of Cisco UCS hardware and general cloud

infrastructure (AWS/OCI).