Senior Infrastructure Systems Administrator

Datavault AI, Inc.; Chicago (IL); Hybrid; USD 110,000 - 160,000; Full time

Job summary

Datavault AI, Inc. is seeking a Senior Infrastructure Systems Administrator to support a complex environment that includes legacy Solaris, Linux and Windows servers, on‑prem hardware, SAN/storage, networking and web application infrastructure, with potential cloud modernization.

The role is ideal for a senior engineer who provides hands‑on operations, troubleshoots production issues, assists with capacity planning, and acts as a trusted escalation resource while coordinating with IT leadership

Qualifications

• 7+ years in systems administration or infrastructure engineering.
• Strong Unix/Linux administration experience.
• Experience with Solaris 10/11 in production.
• Experience with on-prem server infrastructure.
• SAN/storage administration and capacity monitoring.
• Strong troubleshooting and root-cause analysis skills.
• Knowledge of TCP/IP, DNS, VPNs, routing, and firewalls.
• Experience in mission-critical production environments.
• Ability to work independently as a senior escalation resource.
• Willingness to onsite support as needed.

Responsibilities

• Support and maintain legacy Solaris environments.
• Administer Linux and Windows servers.
• Support on-prem infrastructure and storage devices.
• Assist with storage capacity planning and troubleshooting.
• Provide Level 2/3 escalation for infra issues.
• Maintain monitoring, documentation, and SOPs.
• Participate in future infrastructure planning and cloud migrations.
• Ensure production availability for Event Citadel systems.
• Participate in after-hours maintenance and on-call escalation.
• Serve as backup to IT Ops leadership when needed.

Skills

Unix/Linux

Solaris 10/11

On-prem infrastructure

SAN/storage

Troubleshooting

Networking basics

Production systems

Independent contributor

Onsite support

Tools

VMware

AWS

Azure

PostgreSQL

Python

Grafana/Prometheus

Nagios

SolarWinds

Job description

Location: Lisle, IL / Chicago‑area preferred
Work Arrangement: Hybrid / onsite as needed for infrastructure and data center support
Employment Type: Full-Time
Department: Event Citadel / IT Operations

Position Summary

Event Citadel is seeking a Senior Infrastructure Systems Administrator to support and modernize a complex infrastructure environment that includes legacy Solaris systems, Linux and Windows servers, on‑prem hardware, SAN/storage platforms, networking/security components, web application infrastructure, and potential cloud modernization initiatives. This role is ideal for a senior Level 2 / Level 3 infrastructure professional who is comfortable supporting mission‑critical legacy systems while helping the organization prepare for future modernization. The successful candidate will provide hands‑on infrastructure support, troubleshoot production issues, assist with storage and capacity planning, support server and network infrastructure, and help reduce dependency on a small number of senior technical resources.

Key Responsibilities

• Support and maintain legacy Solaris 10 / Solaris 11 production environments.
• Administer and troubleshoot Linux and Windows server systems.
• Support on‑prem infrastructure, including servers, switches, SAN/storage devices, and related hardware.
• Assist with storage capacity planning, monitoring, troubleshooting, and future storage modernization.
• Support Linux and web server modernization initiatives.
• Provide Level 2 / Level 3 escalation support for infrastructure, network/security, and systems issues.
• Help maintain and improve monitoring, alerting, documentation, and operational procedures.
• Support networking and security infrastructure, including IP management, switches, VPN/firewall-related coordination, and secure access.
• Participate in future infrastructure planning, including potential hardware refresh, AWS/cloud migration, or hybrid infrastructure modernization.
• Support production availability for mission‑critical Event Citadel systems and client‑facing platforms.
• Participate in after‑hours maintenance, urgent production support, and on‑call escalation as needed.
• Serve as a trusted technical backup to the IT Ops leadership team when senior staff are traveling or supporting live events.
• Work independently with minimal supervision while communicating clearly with technical and non‑technical stakeholders.

Required Qualifications

• 7+ years of systems administration, infrastructure engineering, or similar experience.
• Strong experience with Unix/Linux systems administration.
• Experience supporting legacy Solaris environments, ideally Solaris 10 and/or Solaris 11.
• Experience with on‑prem server infrastructure.
• Experience with SAN/storage administration, capacity monitoring, or storage troubleshooting.
• Strong troubleshooting and root‑cause analysis skills.
• Working knowledge of networking fundamentals, including TCP/IP, DNS, VPNs, routing, switching, and firewalls.
• Experience supporting production systems in a mission‑critical environment.
• Ability to work independently and operate as a senior escalation resource.
• Comfortable supporting both legacy systems and modernization initiatives.
• Ability to work onsite as needed for hardware, data center, or infrastructure support.

Preferred Qualifications

• VMware administration experience.
• AWS or Azure exposure.
• Apache/Tomcat or web application infrastructure support.
• PostgreSQL or relational database infrastructure support.
• Scripting experience with Bash, PowerShell, Python, or similar.
• Monitoring tools such as Grafana, Prometheus, Nagios, Zabbix, SolarWinds, or similar.
• Experience with hardware refresh projects.
• Experience migrating legacy systems to Linux, cloud, or modern platforms.
• Experience supporting event technology, registration platforms, analytics dashboards, or high‑availability client‑facing systems.
• Experience working in environments with aging infrastructure, legacy systems, and modernization roadmaps.