System Administrator

Aloha! One of Hawaii's premier staffing agencies is seeking 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.
Required Qualifications
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.
Job Type & Location
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.
Application Deadline
This position is anticipated to close on Mar 13, 2026.
>About TEKsystems:
We're partners in transformation. We help clients activate ideas and solutions to take advantage of a new world of opportunity. We are a team of 80,000 strong, working with over 6,000 clients, including 80% of the Fortune 500, across North America, Europe and Asia. As an industry leader in Full-Stack Technology Services, Talent Services, and real-world application, we work with progressive leaders to drive change. That's the power of true partnership. TEKsystems is an Allegis Group company.

The company is an equal opportunity employer and will consider all applications without regards to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

About TEKsystems and TEKsystems Global Services

We're a leading provider of business and technology services. We accelerate business transformation for our customers. Our expertise in strategy, design, execution and operations unlocks business value through a range of solutions. We're a team of 80,000 strong, working with over 6,000 customers, including 80% of the Fortune 500 across North America, Europe and Asia, who partner with us for our scale, full-stack capabilities and speed. We're strategic thinkers, hands-on collaborators, helping customers capitalize on change and master the momentum of technology. We're building tomorrow by delivering business outcomes and making positive impacts in our global communities. TEKsystems and TEKsystems Global Services are Allegis Group companies. Learn more at TEKsystems.com.

The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.