Description
Job Title: It Infrastructure Specialist
Department: Information Technology
Reports to: Sr. Manager, IT & Cybersecurity
Location: Gramercy LA
FLSA: Exempt
SUMMARY DUTIES AND RESPONSIBILITIES
Hands-on technical owner of Atalco’s server, virtualization, network, and cloud platforms across Gramercy, Louisiana and St. Ann, Jamaica. This is a generalist role in a small IT team: the successful candidate works across all four domains below, operates alongside managed service partners, and is accountable for executing the infrastructure and security controls defined in Atalco’s NIST CSF framework and IT & Cybersecurity Strategic Plan.
KEY RESPONSIBILITIES
Core infrastructure
Windows Server, Active Directory, VMware vSphere and the in-flight Nutanix hyperconverged migration, Veeam backup and restore testing, server lifecycle and licensing.
Network & firewall
Cisco Catalyst switching and VLAN design, Meraki MX firewalls, dual-carrier WAN, site-to-site VPN between plants, wireless, and network documentation.
M365 & cloud
Microsoft 365 tenant administration, Entra ID identity lifecycle and hybrid sync, MFA and conditional access, Intune, and Azure-hosted workloads.
Cybersecurity
MTSA cybersecurity support under 33 CFR Part 101, vulnerability and EDR management.
SKILLS, COMPETENCIES and QUALIFICATIONS
All requirements in this section must be met to advance to interview.
Education
Bachelor’s degree in IT, Computer Science, Information Systems, or related field. An associate degree plus two additional years of relevant experience, with a qualifying certification, may substitute.
Experience
Minimum five (5) years hands-on infrastructure administration in production, with demonstrated ownership of servers, virtualization, and networking — not ticket handling alone. Multi-site support experience required, including one site supported remotely. Manufacturing, industrial, energy, or other 24/7 operating environment strongly preferred.
Eligibility
Authorized to work in the U.S. without sponsorship. Must pass pre-employment background check and drug screen, and obtain a TWIC within 30 days of hire. Valid driver’s license; occasional travel to St. Ann, Jamaica (5–10%).
Technical area Required capability Minimum
Windows Server
Install, harden, patch, and troubleshoot Windows Server 2016–2022; PowerShell for routine administration and reporting. 4+ years
Active Directory
AD DS administration, replication troubleshooting, Group Policy design, DNS and DHCP. 4+ years
Virtualization
VMware vSphere/vCenter host and cluster management, vMotion, resource allocation, patching. Exposure to hyperconverged platforms (Nutanix, Azure Stack HCI, or similar). 3+ years
Backup & recovery
Enterprise backup administration (Veeam preferred): job design, replication, immutable/offsite copies, and performing documented restores. 3+ years
Networking
Cisco IOS switch configuration, VLANs, trunking, spanning tree, routing fundamentals, and structured troubleshooting from the physical layer up. 3+ years
Firewall & VPN
Firewall rule administration and site-to-site VPN on a commercial NGFW platform; Cisco Meraki is a direct match. 2+ years
Microsoft 365
Tenant administration across Exchange Online, SharePoint, OneDrive, and Teams via admin centers and PowerShell. 3+ years
Identity & endpoint
Entra ID administration, hybrid directory sync, MFA and conditional access; endpoint management via Intune or equivalent MDM. 2+ years
Security practice
Applied patch and vulnerability management, EDR, least privilege, and network segmentation; familiarity with NIST CSF, CIS Controls, or ISO 27001. 2+ years
Documentation
Produces network diagrams, runbooks, and change records that withstand audit review; prepared to show a redacted sample. Required
3. Preferred Qualifications
Technical Environment& program
• Nutanix AHV/Prism, or a completed HCI migration Industrial plant with OT / process control exposure
• Cisco Meraki dashboard at multi-site scale IT/OT segmentation orPurdue model implementation
• Veeam with immutable object storage NIST CSF or CIS Controls implementation and audit evidence
• Azure IaaS, networking, and cost management Maritime (MTSA / 33 CFR) or regulated-facility compliance
• Scripting beyond routine PowerShell Managing MSPs and holding them to SLA
• Monitoring and reporting Disaster recovery planning and live recovery exercises
Certification — preferred Valued
• CompTIA Network+ or Cisco CCNA M365 Administrator Expert
• Microsoft AZ-104 (Azure Administrator) Nutanix NCP-MCI
• VMware VCP-DCV CompTIA Security+
Veeam VMCE
Note: certification is a tiebreaker, not a substitute for demonstrated hands-on capability. A candidate who can walk through a real failure they diagnosed and fixed outranks one with more certifications and less production ownership.
LANGUAGE SKILLS
Ability to read, analyze and interpret information. Ability to write reports and basics business correspondence. Ability to effectively present information and respond to questions from groups, managers, clients, customers and the general public.
PHYSICAL DEMANDS
The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job. Upon request, reasonable accommodation may be made to enable individuals with qualified disabilities to perform the essential functions.
Ability to climb ladders and stairs up to 100 feet.
Must possess ability to carry and utilize all required personal protective equipment.
Prolonged standing in Units and sitting at a computer.
WORK ENVIRONMENT
The work environment characteristics described here are representative of those an employee encounters while performing the essential functions of this job. Upon request, reasonable accommodation may made to enable individuals with qualified disabilities to perform the essential functions.
Must be able to support plant operations which are in continuous operation and work outdoors in various types of weather conditions.
Fast-paced, high-pressure environment requiring flexibility and resilience
POST OFFER/ACCEPTANCE:
Must successfully complete Atalco Gramercy’s required drug screening and physical examination.
TWIC (Transportation Worker Identification Credential) required prior to offer acceptance; MSHA (Mine Safety and Health Administration) training to be completed upon hire.
Requirements
Education
Bachelor’s degree in IT, Computer Science, Information Systems, or related field. An associate degree plus two additional years of relevant experience, with a qualifying certification, may substitute.
Experience
Minimum five (5) years hands-on infrastructure administration in production, with demonstrated ownership of servers, virtualization, and networking — not ticket handling alone. Multi-site support experience required, including one site supported remotely. Manufacturing, industrial, energy, or other 24/7 operating environment strongly preferred.
Preferred Qualifications
Technical Environment& program
• Nutanix AHV/Prism, or a completed HCI migration Industrial plant with OT / process control exposure
• Cisco Meraki dashboard at multi-site scale IT/OT segmentation orPurdue model implementation
• Veeam with immutable object storage NIST CSF or CIS Controls implementation and audit evidence
• Azure IaaS, networking, and cost management Maritime (MTSA / 33 CFR) or regulated-facility compliance
• Scripting beyond routine PowerShell Managing MSPs and holding them to SLA
• Monitoring and reporting Disaster recovery planning and live recovery exercises
Certification — preferred Valued
• CompTIA Network+ or Cisco CCNA M365 Administrator Expert
• Microsoft AZ-104 (Azure Administrator) Nutanix NCP-MCI
• VMware VCP-DCV CompTIA Security+
Veeam VMCE
Skills Required
- Bachelor's degree in IT, Computer Science, Information Systems, or a related field; alternatively, an associate degree plus two additional years of relevant experience and a qualifying certification
- At least five years of hands-on production infrastructure administration experience
- Demonstrated ownership of servers, virtualization, and networking beyond ticket handling
- Multi-site support experience, including remote support for at least one site
- Four or more years administering Windows Server 2016–2022 and PowerShell
- Four or more years administering Active Directory Domain Services, Group Policy, DNS, DHCP, and replication troubleshooting
- Three or more years managing VMware vSphere/vCenter hosts and clusters, vMotion, resource allocation, and patching
- Three or more years administering enterprise backup and recovery, preferably Veeam
- Three or more years configuring Cisco IOS switches, VLANs, trunking, spanning tree, routing fundamentals, and network troubleshooting
- Two or more years administering commercial next-generation firewalls and site-to-site VPNs
- Three or more years administering Microsoft 365, including Exchange Online, SharePoint, OneDrive, Teams, and PowerShell
- Two or more years administering Entra ID, hybrid directory synchronization, MFA, conditional access, and Intune or equivalent MDM
- Two or more years applying patch and vulnerability management, EDR, least privilege, network segmentation, and security frameworks
- Ability to produce auditable network diagrams, runbooks, and change records, including a redacted sample
- Authorization to work in the United States without sponsorship
- Ability to pass a pre-employment background check, drug screen, physical examination, and required plant screening
- Obtain a TWIC within 30 days of hire and complete MSHA training upon hire
- Valid driver's license
- Ability to travel occasionally to St. Ann, Jamaica, approximately 5–10%
- Ability to climb ladders and stairs up to 100 feet and carry required personal protective equipment
- Nutanix AHV/Prism or completed hyperconverged infrastructure migration experience
- Industrial plant, OT/process control, or IT/OT segmentation experience
- Cisco Meraki dashboard experience at multi-site scale
- Veeam experience with immutable object storage
- NIST CSF or CIS Controls implementation and audit evidence experience
- Azure IaaS, networking, and cost management experience
- Maritime, MTSA, 33 CFR, or regulated-facility compliance experience
- Scripting beyond routine PowerShell
- Managed service provider oversight and SLA management experience
- Monitoring, reporting, disaster recovery planning, and live recovery exercise experience
- CompTIA Network+, Cisco CCNA, Microsoft 365 Administrator Expert, Microsoft AZ-104, Nutanix NCP-MCI, VMware VCP-DCV, CompTIA Security+, or Veeam VMCE certification
What We Do
Atalco Gramercy LLC operates the only major alumina refinery in the United States, processing imported bauxite into alumina, a key feedstock for aluminum production. The facility also produces gallium and serves various industrial and consumer product sectors.
