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Senior Infrastructure Administrator (Permanent – Hybrid – Phoenix, AZ)

Hybrid, Permanent
Phoenix, AZ
Posted 1 week ago

Our client, a prominent organization in the Information Technology sector, is seeking a highly experienced and motivated Senior Infrastructure Administrator. This permanent position, based hybrid in Phoenix, Arizona, requires 3 days a week in the office. You’ll play a critical role in managing and maintaining the organization’s complex IT infrastructure. You’ll be responsible for the design, implementation, optimization, and security of server, network, and storage infrastructure, both on-premises and in the cloud. You will leverage your extensive technical expertise and leadership skills to ensure the high availability, performance, and security of the IT environment, while also mentoring junior staff and contributing to the overall success of IT operations.

At AAA, their team members strive to deliver amazing service and help their Members outsmart life’s roadblocks. They believe everything you do outside of work adds to who you are at work. They’re working to transform AAA for the next century with a mission to create Members for life by unleashing the innovative spirit of their Team Members. Join a collaborative environment where your contributions are highly valued.


Why Work For This Organization?

  • Great Pay: Opportunity to participate in a discretionary annual incentive plan or other incentive plans, depending on your position, offering competitive compensation.
  • 401k Matching: Benefit from a generous $1 for $1 company match, up to 6% of eligible earnings per pay period, securing your financial future.
  • Comprehensive Benefits: Access robust medical, dental, and vision insurance, along with a wellness program and more.
  • Paid Holidays: Enjoy paid holidays, promoting work-life balance.
  • Paid Time Off: Team Members accrue paid time off monthly, and depending on position, an additional 24 hours per year are earmarked for volunteer activities, encouraging community engagement.
  • Collaborative Environment: Work in a collaborative environment where your contribution to providing exceptional service to members is highly valued.
  • Free AAA Classic Membership: Receive a complimentary AAA Classic Membership, providing access to exclusive member benefits.
  • AAA Product Discounts: Enjoy discounts on various AAA products, adding extra value.
  • Tuition Reimbursement Program: Benefit from a Tuition Reimbursement Program, supporting your continuous learning and professional development.

Job Summary: Leading IT Infrastructure Management

We are seeking a highly experienced and motivated Senior Infrastructure Administrator to play a critical role in managing and maintaining our organization’s complex IT infrastructure. In this role, you will be responsible for the design, implementation, optimization, and security of our server, network, and storage infrastructure, both on-premises and in the cloud. You will leverage your extensive technical expertise and leadership skills to ensure high availability, performance, and security of our IT environment, while also mentoring junior staff and contributing to the overall success of our IT operations.

Responsibilities / Job Duties: Driving Infrastructure Excellence

As a Senior Infrastructure Administrator, you’ll oversee and contribute to all facets of the IT infrastructure, ensuring its stability, performance, and security across diverse platforms. Your duties will blend hands-on technical work with strategic planning and mentorship.

  • Infrastructure Management: You will comprehensively manage and maintain all aspects of our IT infrastructure, which includes physical and virtual servers, network devices, storage systems, and various cloud platforms. Your primary goal is to proactively identify and resolve potential issues to ensure the unwavering stability, optimal performance, and robust security of the entire infrastructure. You’ll also be instrumental in implementing and maintaining sophisticated infrastructure monitoring and alerting systems to guarantee proactive identification of any issues before they impact operations.
  • Server Administration: You will demonstrate expert-level administration of Windows Server and/or Linux environments. This includes meticulous installation, configuration, security hardening, performance tuning, and advanced troubleshooting. You will also manage and maintain critical core infrastructure services such as Active Directory, DNS (Domain Name System), and DHCP (Dynamic Host Configuration Protocol), ensuring seamless user authentication, resource resolution, and network address management.
  • Network Management: You will expertly manage and maintain the network infrastructure, encompassing routers, switches, firewalls, and VPNs (Virtual Private Networks). Your responsibilities include continuously monitoring network performance to identify bottlenecks, swiftly troubleshooting network connectivity issues to restore service, and implementing robust network security measures to protect against unauthorized access and cyber threats.
  • Storage Administration: You will diligently manage and maintain storage systems, including both SAN (Storage Area Network) and NAS (Network Attached Storage) devices. Your critical tasks involve ensuring data integrity through various validation methods, guaranteeing data availability through redundancy and replication, and ensuring security through robust backups, replication strategies, and disaster recovery planning to protect against data loss and ensure business continuity.
  • Cloud Infrastructure: You bring extensive experience with leading cloud platforms such as Google Cloud, Azure, and AWS (Amazon Web Services). This includes deep knowledge of cloud architecture, managing virtualization in cloud environments, implementing and maintaining hybrid environments (connecting on-premises to cloud), and ensuring comprehensive cloud security. You will manage and maintain various cloud resources, including virtual machines, storage accounts, and networking components within these cloud ecosystems.
  • Infrastructure Projects: You will take a leading role in leading and managing complex infrastructure projects. These projects include vital initiatives such as large-scale system migrations (e.g., to cloud, new hardware), significant upgrades (e.g., OS, hardware, software versions), and large-scale deployments of new systems or services. You will meticulously develop project plans, timelines, and budgets, ensuring all projects are completed on time and within financial parameters.
  • Automation and Scripting: You will actively develop and maintain scripts using languages such as PowerShell, Bash, or Python. These scripts are designed to automate administrative tasks, streamline the deployment of infrastructure components, and develop custom solutions that address specific operational needs. Your efforts in automation will significantly improve operational efficiency and reduce manual effort across the IT environment.
  • Mentorship: You will provide invaluable guidance and mentorship to junior infrastructure administrators, sharing your extensive knowledge and expertise. Your contributions to their professional development will strengthen the overall capabilities of the IT team, fostering a culture of continuous learning and growth.

Knowledge / Skills / Abilities: Your Core Competencies

  • Server Administration: You possess expert-level proficiency with Windows Server and/or Linux administration, including in-depth knowledge of configuration, security hardening, performance tuning, and advanced troubleshooting for enterprise environments. You have a proven track record of managing complex server ecosystems.
  • Network Management: You have a strong understanding of networking concepts (e.g., TCP/IP, VLANs, routing protocols, firewalls, VPNs) and extensive experience with managing network devices and infrastructure, ensuring robust and secure connectivity.
  • Storage Administration: You bring extensive experience with storage technologies (e.g., SAN, NAS, object storage) and advanced storage administration tasks, including data replication, backup/recovery, and disaster recovery planning.
  • Cloud Platforms: You possess a deep understanding of cloud platforms (e.g., Google Cloud, Azure, AWS), including cloud architecture, virtualization strategies for hybrid environments, and comprehensive cloud security best practices.
  • Scripting: You have strong scripting skills in PowerShell, Bash, or Python for automating administrative tasks and developing custom solutions, driving efficiency and consistency.
  • System Monitoring: You have hands-on experience with infrastructure monitoring tools (e.g., Nagios, Zabbix, SolarWinds, cloud-native monitoring) and the ability to interpret monitoring data to proactively identify and troubleshoot complex issues.
  • Troubleshooting: You possess expert analytical and problem-solving skills that enable you to quickly diagnose and resolve complex infrastructure issues, often under pressure, minimizing downtime and impact.
  • Security: You have a strong understanding of infrastructure security principles and best practices, including vulnerability management, access control, and threat mitigation strategies.
  • Communication: You demonstrate excellent communication skills, both written and verbal, allowing you to effectively interact with diverse technical teams, non-technical audiences, and leadership.
  • Leadership: You have a proven ability to lead and mentor junior staff, fostering their growth and contributing to a high-performing team.
  • Project Management Track Record: You have a proven track record of managing complex infrastructure projects from initiation to successful completion.
  • High-Availability and Disaster Recovery: You possess expertise in managing Windows Server and/or Linux environments, with extensive experience in high-availability solutions, meticulous disaster recovery planning, and advanced performance tuning techniques to ensure continuous operation and optimal system responsiveness.

Education, Competencies, Certifications/Licenses: Your Foundational Expertise

  • Educational Background: A Bachelor’s degree in Computer Science, Information Technology, or a related field is required, coupled with 8 years of experience in IT infrastructure administration. This experience must encompass server and network management, storage solutions, system optimization, and infrastructure security. Alternatively, a High School Diploma and 12 years of equivalent experience in these domains will be considered.
  • Preferred Certifications: Industry certifications are highly preferred, validating your expertise. This includes credentials such as Microsoft MCSE (Microsoft Certified Solutions Expert), various Linux certifications (e.g., Red Hat Certified Engineer – RHCE), and AWS Certified Solutions Architect.

Work Environment:

This position operates in a professional office environment with standard office equipment, including computers, telephones, photocopiers, and filing cabinets.


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