Senior System Administrator

Foxconn Industrial Internet - FII • Houston, TX

3d • Onsite

About The Position

The Senior System Administrator is responsible for designing, optimizing, and securing the organization's global enterprise server infrastructure, data storage, virtualization layers, and cloud ecosystems. Serving as the Tier-3 escalation point for all enterprise system issues, this role leads complex datacenter migrations, cloud-native transformations, and ensures business continuity across all production-critical systems.

Requirements

• A Bachelor’s or Master’s degree in Computer Science, Computer Engineering, Management Information Systems, or a strictly related field is required.
• Advanced Active Directory & IAM: Deep expertise in managing enterprise Active Directory Domain Services (AD DS) in multi-domain/multi-forest environments, including Group Policy (GPO) architecture, trust relationships, Active Directory Certificate Services (AD CS), and seamless synchronization with Azure AD / Entra ID.
• Linux/Unix Expertise: Expert-level administration of enterprise Linux distributions (RHEL, Ubuntu Server). Advanced mastery of performance tuning, kernel parameters optimization, systemd troubleshooting, and deep shell scripting (Bash).
• Windows Server Mastery: In-depth knowledge of Windows Server (2019/2022) clustering, Storage Spaces Direct (S2D), and advanced troubleshooting of core network services (DNS, DHCP, NPS) at scale.
• Enterprise Virtualization: Expert-level configuration, management, and troubleshooting of VMware vSphere suites (vCenter, ESXi, vSAN, NSX). Proven experience deploying and maintaining high-availability (HA) clusters, Distributed Resource Scheduler (DRS), and live migration mechanics.
• Storage Area Networks (SAN/NAS): Advanced management of enterprise-grade storage hardware (e.g., Dell EMC, NetApp, Pure Storage) utilizing Fibre Channel (FC), iSCSI, and NFS protocols. Designing robust multi-pathing (MPIO) and fabric configurations.
• Containerization & Orchestration: Foundational-to-advanced experience with Docker container environments and orchestration platforms like Kubernetes (K8s) or Red Hat OpenShift in a production setting.
• Configuration Management: Mastery of configuration management and deployment automation tools such as Ansible, Terraform, Puppet, or Chef.
• Advanced Scripting: High proficiency in building robust scripts using PowerShell or Python to query APIs, automate auditing, and manipulate complex data structures.
• Enterprise Monitoring & Observability: Design and optimization of centralized monitoring systems (e.g., Zabbix, Prometheus/Grafana, Datadog) with customized alerting thresholds, log aggregation, and synthetic transactions monitoring.
• Execution of a comprehensive NDA and IP agreement is mandatory.
• Must pass an extensive, executive-level pre-employment background and professional credential check.

Nice To Haves

• Active expert-level certifications are highly preferred, such as MCSE (Core Infrastructure), VMware VCP/VCAP (DCV), Red Hat Certified Engineer (RHCE), or Professional Cloud Architect certifications (AWS Professional / Azure Solutions Architect Expert).

Responsibilities

• Lead the design, sizing, implementation, and lifecycle management of enterprise server infrastructure, high-performance storage arrays (SAN/NAS), hyper-converged systems (HCI), and hybrid cloud environments.
• Serve as the ultimate internal technical authority for complex server operating system anomalies, Active Directory forest-level issues, virtualization deadlocks, and critical storage failures. Lead root-cause analysis (RCA) and emergency recovery during high-priority (P1/P0) system outages.
• Drive the automation strategy for system provisioning, configuration management, and patching. Design, build, and maintain automation pipelines to eliminate manual overhead and enforce standard system baselines.
• Architect and manage enterprise workloads across public cloud platforms (AWS, Azure) and on-premises datacenters. Lead migrations from legacy infrastructures to highly redundant, cloud-native or hybrid models.
• Design, implement, and periodically test enterprise-grade disaster recovery architectures, automated backup strategies, and multi-site replication policies to guarantee strict Recovery Time Objectives (RTO) and Recovery Point Objectives (RPO).
• Oversee system security hardening in alignment with international standards (such as ISO 27001 or NIST). Manage enterprise identity services, Role-Based Access Control (RBAC), and patch compliance matrices across thousands of endpoints.
• Conduct technical audits and deep capacity analysis of compute, memory, and storage footprints. Provide data-driven recommendations and technical inputs for annual IT capital expenditure (CapEx) and operational expenditure (OpEx) budgeting.
• Establish corporate system engineering standards and approve technical Standard Operating Procedures (SOPs). Actively mentor and cross-train junior system administrators and network engineers to elevate overall team capabilities.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior