Senior System Administrator

ITTConnect is seeking an IT Infrastructure and Network Engineer for a direct-hire full time position with a client that is a large financial institution.

Position is hybrid (3x a week on site)

We are seeking a Network and Infrastructure Specialist responsible for ensuring the stability, security, and efficiency of the on-premises and cloud infrastructure.

This role covers system administration, Microsoft 365 E5 management, security operations, network design, and project execution—all within a highly regulated financial environment.

This is a hands‑on, on‑site position supporting mission critical systems and collaborating with IT teams, business units, and third‑party vendors.

• Maintain and administer servers, virtualization platforms, and core banking infrastructure.
• Oversee Windows/Linux server lifecycle: deployment, upgrades, patching, and decommissioning.

• Administer Microsoft 365 E5, including Exchange Online, Intune, Security, and Compliance.
• Manage Entra  (Azure AD) and on‑premises Active Directory, including GPOs, authentication, and user provisioning.

• Design and support network infrastructure, ensuring performance, scalability, and segmentation.
• Configure firewalls (Fortigate preferred), VPNs (IPsec), and NAC solutions.
• Implement and monitor security policies, threat detection, and incident response procedures.

• Troubleshoot hardware, software, and network issues using structured analysis and diagnostic tools.
• Develop and maintain technical documentation, SOPs, and configuration standards.
• Perform root cause analysis and implement long‑term improvements.
• Lead local technical projects, ensuring timely and compliant delivery.
• Coordinate with external vendors, auditors, and internal stakeholders.

• Support internal/external audits, regulatory requirements, and policy adherence.
• Monitor changes in Bank policies and ensure departmental compliance.

• 5+ years of experience with IT Infrastructure Support
• Experience with firewalls (Fortigate), VMware, Cisco switching, and VDI
• Experience with high availability, clustered environments, storage systems, and disaster recovery
• Strong knowledge of networking protocols, server administration, and security best practices
• Experience with scripting and automation is a plus.
• Highly desirable previous experience working for Financial Services / Banks
• Highly desirable fluency in Portuguese or Spanish
• Bachelor’s degree in Computer Science or a related field