Tier 2 IT Support Specialist – Windows & Microsoft 365

CGG Services SAS; Houston (TX); On-site; USD 48,000 - 65,000; Full time

Job summary

CGG Services SAS in Houston, TX seeks a Service Desk Support Specialist to deliver Tier 2 support for end‑user devices, apps, and hybrid infrastructure. You'll troubleshoot Windows devices, support Microsoft 365, manage AD/Azure AD, and assist with onboarding and security tasks.

Ideal candidates have 2–4 years in similar roles, strong customer service, and solid networking knowledge. Hybrid/onsite work in a enterprise environment with shift rotations may apply.

Qualifications

• 2–4 years of experience in Tier 2 helpdesk, technical support, or junior systems administration roles.
• Strong experience supporting Windows endpoints in an enterprise environment.
• Working knowledge of Microsoft 365 and hybrid identity concepts.
• Hands-on experience with Active Directory user and group management.
• Solid understanding of networking fundamentals (TCP/IP, DNS, DHCP, VPN).
• Experience using ticketing systems and documenting technical solutions.
• Strong communication and customer service skills.

Responsibilities

• Troubleshoot simple and complex Windows desktop, laptop, and mobile device issues.
• Support Microsoft 365 services, including Outlook, Exchange Online, Teams, OneDrive and SharePoint.
• Resolve identity and authentication issues (password resets, MFA, conditional access).
• Troubleshoot VPN, remote access, and hybrid connectivity issues.
• Manage user accounts, security groups, and permissions in On‑prem AD and Azure AD.
• Support user lifecycle processes (onboarding, role changes, offboarding).
• Assist with Hybrid Azure AD Join and device registration issues.
• Support administration and monitoring of Windows Server (on‑prem), Azure and Microsoft 365 services.
• Monitor and support Azure AD Connect and on‑prem AD services; apply patches per change management.
• Support virtualization (Hyper‑V) as needed and maintain system documentation.

Skills

Windows troubleshooting

Microsoft 365

Hybrid identity concepts

Active Directory management

Networking fundamentals

Ticketing systems

Customer service

Communication skills

Tools

Active Directory

Azure AD

Microsoft Entra ID

PowerShell basics

Job description

CGG Services SAS in Houston, TX seeks a Service Desk Support Specialist to deliver Tier 2 support for end‑user devices, apps, and hybrid infrastructure. You'll troubleshoot Windows devices, support Microsoft 365, manage AD/Azure AD, and assist with onboarding and security tasks.

Ideal candidates have 2–4 years in similar roles, strong customer service, and solid networking knowledge. Hybrid/onsite work in a enterprise environment with shift rotations may apply.