System Administrator
Role details
Job location
Tech stack
Job description
Aloha! TEKsystems has partnered up with one of Hawaii's premier staffing agencies to assist in identifying an experienced System Administrator to manage, maintain, and operate their IT infrastructure. This role is responsible for the reliability, performance, and day-today operation of on-premises and virtualized environments, including VMware vSphere, Windows and Linux servers, advanced firewalls, VPNs, and Web Application Firewalls (WAFs). The ideal candidate is hands-on, operationally strong, and comfortable supporting business-critical systems. Key Responsibilities Infrastructure & Systems Management Administer and maintain VMware vSphere infrastructure, including host management, VM provisioning, performance tuning, and capacity planning. Install, configure, manage, and support Windows Server environments (Active Directory, DNS, DHCP, Group Policy, file and print services). Administer and support Linux servers (e.g., RHEL, Ubuntu, or equivalent). Perform system patching, upgrades, maintenance, and lifecycle management. Monitor system health, availability, and performance; troubleshoot and resolve infrastructure issues. Plan and execute infrastructure upgrades and improvements. Network & Platform Operations Configure, manage, and maintain advanced firewalls (e.g., next-generation firewalls), including rule sets, NAT, routing, and logging. Administer VPN solutions (site-to-site and remote access). Manage and maintain Web Application Firewalls (WAFs) to support application availability and protection. Maintain reliable network connectivity across environments. Backup, Recovery & Reliability Implement and maintain backup and disaster recovery solutions. Perform backup validation, restore testing, and disaster recovery exercises. Ensure system availability, redundancy, and recoverability. Automation, Documentation & Support Develop and maintain scripts or automation using PowerShell, Bash, or similar tools. Create and maintain system documentation, diagrams, and operational runbooks. Provide Tier 2 / Tier 3 support for infrastructure-related incidents and service requests. Participate in on-call rotations and scheduled after-hours maintenance.
Requirements
5+ years of experience in a System Administrator or infrastructure-focused role. Strong hands-on experience with VMware vSphere. Strong experience administering Windows Server environments. Solid experience administering Linux servers. Experience managing enterprise-grade firewalls, VPNs, and WAFs. Strong understanding of networking fundamentals (TCP/IP, routing, DNS, VLANs). Experience with monitoring and troubleshooting complex systems. Preferred Qualifications Experience in enterprise or hybrid IT environments. Scripting or automation experience (PowerShell, Bash, Python). Experience working in highly available or business-critical systems. Relevant certifications (VMware, Microsoft, Linux, networking). Soft Skills Strong troubleshooting and analytical skills. Ability to prioritize and manage multiple tasks. Clear communication with both technical and non-technical stakeholders. Detail-oriented with strong documentation habits.
Benefits & conditions
This is a Permanent position based out of Honolulu, HI. Pay and Benefits The pay range for this position is $85000.00 - $102000.00/yr. We believe that taking care of our ALTRES 'ohana is the best investment we can make. From personal wellness to professional growth, our benefits are designed to help you do your best work and live your best life. Company-paid medical and dental insurance Vacation and holiday pay 401(k) retirement plan with employer matching Group Life Insurance Tuition Assistance Program Credit union membership Corporate discounted membership at 24 HR Fitness & UFC Gym Corporate discounts with AAA and car rental agencies Entertainment discounts including movie tickets, Universal Studios, Disneyland and more Workplace Type This is a fully onsite position in Honolulu,HI.