IT Systems Administrator III

IT Systems Administrator III

The IT Systems Administrator III will provide senior‑level operational ownership of enterprise infrastructure platforms, with a strong emphasis on Linux, Kubernetes, and Azure‑hosted production workloads. This position supports business‑critical systems and serves as a secondary technical lead and backup to senior platform engineering staff, ensuring continuity, resiliency, and institutional knowledge across modern infrastructure environments.

• Provide Tier III support for escalated infrastructure and platform issues
• Administer and support on‑premises and Azure‑hosted systems
• Operate and maintain Windows and Linux server environments
• Manage identity, access, and security integrations across infrastructure platforms
• Support physical, virtual, and cloud‑based servers and applications
• Ensure adherence to IT Change Management, security, and compliance policies
• Operate, maintain, and support production Kubernetes clusters and the underlying Linux‑based systems supporting containerized workloads
• Administer and monitor platform health, performance, capacity, availability, and cost efficiency across Kubernetes, Linux, and Azure environments
• Troubleshoot complex, cross‑layer issues involving containers, nodes, networking, storage, identity, and security integrations
• Manage Azure infrastructure supporting cloud‑native platforms, including compute, networking, identity, storage, and security components
• Implement platform hardening, patching, lifecycle management, and resiliency best practices
• Support secure service‑to‑service communication and role‑based access control (RBAC) models
• Implement and maintain security hardening across servers and platforms
• Support vulnerability remediation and audit activities in coordination with Information Security
• Participate in incident response, root cause analysis, and remediation efforts
• Ensure platforms are operated in a manner consistent with regulatory and audit expectations
• Assist in the design and implementation of highly available and resilient architectures
• Support infrastructure‑as‑code, automation, and operational tooling where applicable
• Maintain accurate operational documentation, runbooks, and architectural diagrams
• Serve as a backup resource for senior platform engineering staff, including Kubernetes and Linux subject matter experts
• Reduce key‑person dependency through knowledge transfer and documentation
• Mentor and support Tier I and Tier II infrastructure staff
• Lead or contribute to infrastructure projects from planning through execution

• High School diploma or GED required;
  Bachelor’s degree in IT or Computer Science preferred
• 7+ years of systems administration or infrastructure engineering experience
• Relevant certifications preferred (Azure, Linux, Kubernetes, or security‑focused)

• Advanced troubleshooting skills across infrastructure and platform layers
• Strong knowledge and skills in administering Linux-based systems
• Hands‑on knowledge in supporting Kubernetes and container‑based platforms in production environments
• Expertise in Microsoft Azure
• Ability to monitor, log, and conduct performance analysis along with incident response and root cause analysis
• Strong skills in scripting and automation (Power Shell, Bash, or similar)
• Comprehensive understanding of infrastructure documentation and architectural diagramming
• Ability to support security, compliance, and audit requirements
• Understanding of Role‑Based Access Control (RBAC) and access management
• Familiarity with cloud‑native security practices is preferred
• Proficiency in supporting production data platforms and pipelines is preferred
• Ability to reduce reliance on third‑party tooling through the development and use of internal platforms is preferred
• Familiarity working in regulated or audited environments is preferred

• Health, Dental and Vision insurance
• Life and Disability insurance options
• Paid Time Off starts accruing once hired and take your birthday off
  -paid
• 401k Retirement plan with up to a 10% match of your base gross compensation
• Tuition reimbursement opportunities & professional development
• Volunteer opportunities
  -and earn additional PTO hours!
• On‑site clinics for Vaccines and Mammograms

General Electric Credit Union is an Equal Opportunity Employer