Infrastructure Support Engineer (MacOS Administration, Windows Server Admin & Endpoint & Client Support)

Infrastructure Support Engineer ( MacOS Administration , Windows Server Admin & Endpoint & Client Support)

Please note, this role is not able to offer visa transfer or sponsorship now or in the future*

The Infrastructure Support Engineer will be responsible for providing end-to-end support for enterprise infrastructure environments, including Networking, Citrix Virtualization, Client Computing, and Server Administration across Windows, macOS, and Linux platforms.

The role requires strong troubleshooting skills, operational support expertise, and the ability to maintain high availability of critical business services.

The ideal candidate should possess a broad infrastructure background with hands-on experience managing enterprise systems, virtual desktop environments, servers, networking technologies, and endpoint platforms.

· Support and maintain LAN, WAN, Wireless, VPN, and SD-WAN environments.

· Configure and troubleshoot routers, switches, firewalls, and wireless infrastructure.

· Monitor network performance, availability, and capacity utilization.

· Diagnose and resolve network connectivity, latency, and routing issues.

· Coordinate with telecom providers and vendors for WAN circuit management.

· Support DNS, DHCP, TCP/IP, VLANs, Routing Protocols, and Network Security.

· Administer and support Citrix Virtual Apps and Desktops environments.

· Manage Citrix Delivery Controllers, StoreFront, Citrix Gateway, and Director.

· Provision and maintain VDI, published applications, and remote access solutions.

· Troubleshoot user sessions, profile issues, printing, and application performance.

· Perform Citrix upgrades, patching, and environment health checks.

· Monitor infrastructure utilization and optimize end-user experience.

· Install, configure, and maintain Windows Server environments.

· Support Active Directory, Group Policies, DNS, DHCP, and File Services.

· Manage server patching, upgrades, performance tuning, and security hardening.

· Perform backup, recovery, and disaster recovery activities.

· Troubleshoot server, application, and authentication-related issues.

· Administer Red Hat, CentOS, Ubuntu, and other Linux platforms.

· Manage user accounts, permissions, storage, and system security.

· Perform server provisioning, upgrades, patching, and performance monitoring.

· Troubleshoot operating system, application, and infrastructure issues.

· Support automation and scripting using Shell, Bash, or Python.

macOS Administration

· Support Apple macOS devices in enterprise environments.

· Manage device enrollment and compliance using MDM platforms such as Jamf or Intune.

· Troubleshoot operating system, application, and connectivity issues.

· Support software deployment, patching, and endpoint security compliance.

· Assist users with hardware and software-related issues.

· Support Windows, macOS, and Linux desktop/laptop environments.

· Perform software installations, upgrades, configuration, and troubleshooting.

· Resolve incidents related to hardware, operating systems, applications, and peripherals.

· Support remote users and executive/VIP users as needed.

· Ensure compliance with endpoint security and corporate standards.

· Handle Incident, Problem, Change, and Request Management activities.

· Participate in major incident troubleshooting and root cause analysis.

· Maintain technical documentation, SOPs, and knowledge articles.

· Work within SLA-driven operational environments.

· Support on-call and after-hours maintenance activities.

· TCP/IP

· VLANs

· OSPF

· EIGRP

· BGP

· DNS/DHCP

· VPN Technologies

· Wireless Networks

· Firewall Fundamentals

· Citrix Virtual Apps and Desktops

· Citrix StoreFront

· Citrix Gateway

· Citrix Director

· Active Directory

· Group Policy

· DNS/DHCP

· PowerShell

· CentOS

· Ubuntu

· Shell Scripting

macOS Administration

· macOS Support

· Jamf Pro

· Microsoft Intune

· VMware vSphere

· Hyper-V

· Azure (Preferred)

· AWS (Preferred)

· ServiceNow

· PRTG

· SolarWinds

· Nagios

· ITIL Processes

· 5–8 years of enterprise infrastructure support experience.

· Strong experience across networking, Citrix, server administration, and endpoint support.

· Experience supporting global enterprise environments.

· Excellent troubleshooting and analytical skills.

· Microsoft Certified: Windows Server Hybrid Administrator Associate

· Cisco CCNA

· Cisco CCNP

· Strong customer service and stakeholder management skills.

· Excellent verbal and written communication.

· Ability to work independently and manage multiple priorities.

· Strong documentation and knowledge management skills.

· Ability to work effectively in a 24x7 support environment.

Role Level: L2/L3 Infrastructure Support Engineer / Senior Infrastructure Engineer depending on experience and customer requirements.

Applications will be accepted until 9/30/2026

The annual salary for this position is between $49,001- $91,000 depending on experience and other qualifications of the successful candidate.

This position is also eligible for Cognizant’s discretionary annual incentive program, based on performance and is subject to the terms of Cognizant’s applicable plans.

Cognizant offers the following benefits for this position, subject to applicable eligibility requirements:

· Medical/Dental/Vision/Life Insurance

· Paid holidays plus Paid Time Off

· 401(k) plan and contribution

· Long-term/Short-term Disability

Disclaimer: The salary, other compensation, and benefits information is accurate as of the date of this posting.

Cognizant reserves the right to modify this information at any time, subject to applicable law.

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Cognizant US Corporation is an Equal Opportunity Employer Minority/Female/Disability/Veteran.

If you require accessibility assistance applying for open positions in the US, please send an email with your request to CareersNA2@cognizant.com