Senior Systems Administrator

Job Details

Job Location:

Deer Park, TX 77536
Position Type:
Full Time

Job Shift: Must Be Flexible
Job Category:
Banking

• Design, implement, administer, maintain, and support Shell FCU’s network, servers, communications, and infrastructure systems to ensure innovation, stability, security, and high availability.
• Plan, develop, install, configure, secure, maintain, support, and optimize all network and server hardware, systems, SaaS, software, virtualization platforms, and communication links.
• Drive innovation and roll out new technology systems, including elements of technical project management, critical thinking, and documentation when changing or implementing staff/member‑impacting systems.
• Occasionally analyze and resolve end‑user hardware and software issues in a timely manner and provide training as needed.
• Consistently meet all Shell FCU Service Commitments, Employee Creed, and Service Distinctions.
• Maintain knowledge of and comply with all applicable rules and regulations within the scope of duties, including the Bank Secrecy Act.
• Attend all required annual training sessions.
• Perform duties in compliance with Shell FCU policies, procedures, philosophy, and standards of performance.
• Design, deploy, maintain, troubleshoot, and manage LANs, WANs, VPNs, wireless networks, VLANs, and telephony systems.
• Manage daily operations of Cisco networking components, including VPNs, IDS/IPS, firewalls (ASA/Firepower), and switches to ensure maximum uptime.
• Monitor network performance, identify bottlenecks, and implement corrective solutions to maintain secure and reliable connectivity across servers, workstations, telephony equipment, and branch locations.
• Design, plan, communicate, and implement improvements or replacements of infrastructure to ensure scalability, recoverability, and performance.
• Maintain IP addressing schemes, configuration backups, and security credentials for servers, switches, VPNs, and firewalls.
• Install, configure, and maintain Windows Server operating systems (2016, 2019, 2022, and future versions).
• Administer Active Directory, Group Policy, DNS, DHCP, Certificate Services, File/Print Services, and Remote Desktop Services.
• Perform regular system updates, security patches, and hotfixes using WSUS, KACE, or similar tools to maintain compliance and security.
• Administer virtualization platforms (VMware/Hyper‑V), including provisioning, resource allocation, snapshots, and high‑availability clusters.
• Manage enterprise applications including Microsoft Exchange Online, SQL Server, and Microsoft 365 cloud services.
• Oversee enterprise backup and recovery solutions (Rubrik or equivalent), including routine restore testing.
• Maintain user and group accounts, access rights, and permissions across enterprise systems.
• Monitor server performance and system logs to proactively identify and resolve issues.
• Assist IT Security with vulnerability management by remediating findings from Nessus or similar tools.
• Monitor and respond to alerts from security and performance monitoring systems.
• Assess network threats, conduct vulnerability assessments, and support penetration testing efforts.
• Administer intrusion detection/prevention systems, review security logs, and recommend corrective actions.
• Implement Zero Trust Architecture principles (least‑privilege access, MFA, segmentation) and hybrid cloud security measures (Azure, O365, Entra , AWS).
• Prepare for and provide rapid response to security incidents, including malware, viruses, and other malicious attacks.
• Ensure compliance with regulatory requirements and effectively communicate security risks, incidents, and policies to staff and management.
• Participate in disaster recovery and business continuity planning, testing, and incident response scenarios.
• Ensure daily backups and functional restores of critical systems.
• Contribute to change management processes, including documenting configuration changes, recovery procedures, and architecture diagrams.
• Provide advanced technical support to end users and serve as an escalation point for Tier I/II staff.
• Mentor junior administrators and support staff to build team capabilities.
• Lead or assist in the planning,…