Contract Linux Windows System Administrator Jobs in Riverside, CA

Description

This position is a new role that is needed because the company is growing. They need a minimum of 5 years hands-on experience as a systems administrator/engineer. The client needs a plug in option, someone well rounded("Master of some"). The client needs someone who is technically deep, comfortable calling vendors, a problem solver and service oriented and collaborative. They will work 5 days on site and be on-call for any network issues. This cannot be someone trying to "punch-up" from a helpdesk position, they are also not going to be pushing anyone to management. The interview will be with Ray Howard and Vaughn Book. Ray is very proud of his knowledge and will essentially duel with the candidate with regard to the systems they work on. These people must reside close(40 miles) to the office in Rancho Cucamonga. Technical Environment: -90% on‑prem - Strong preference to keep data on‑prem - Cloud mostly limited to 3rd‑party SaaS - Security‑first organization Tech Stack - Windows Server (standardized) - Active Directory (deep knowledge required) - Microsoft Exchange on‑prem - Networking (routing & switching) - SQL / DBMS experience (SQL, MySQL, Oracle – not expert‑level required) - Some Linux/Unix exposure (nice to have) Current / Upcoming Initiatives - Transitioning from Cisco routers → Check Point firewalls with SD‑WAN - Check Point experience = major plus - Ongoing infrastructure upgrades (constant) Need someone from a mature shop but not to the point that their work is siloed

Skills

Active directory, Windows, Windows server, microsoft exchange server, network routing, network switch, sql, mysql, comptia a+, ccna, linux unix, linux, unix, checkpoint firewall, checkpoint certified, checkpoint

Top Skills Details

Active directory,Windows,Windows server,microsoft exchange server,network routing,network switch,sql,mysql,comptia a+,ccna

Additional Skills & Qualifications

Must be: Technically deep Comfortable calling vendors A problem solver Service‑oriented and collaborative Questions that will be asked: Questions from the exams related to their specific certifications "What is STIG" "What is the SQL transactional" "What do you consider good security?" Resume needs to reflect quality documentation skills, "the longer the better"-Ray

Experience Level

Intermediate Level

This is a Contract to Hire position based out of Rancho Cucamonga, CA.

The pay range for this position is $48.00 - $62.00/hr.

Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. If eligible, the benefits available for this temporary role may include the following:
• Medical, dental & vision
• Critical Illness, Accident, and Hospital
• 401(k) Retirement Plan – Pre-tax and Roth post-tax contributions available
• Life Insurance (Voluntary Life & AD&D for the employee and dependents)
• Short and long-term disability
• Health Spending Account (HSA)
• Transportation benefits
• Employee Assistance Program
• Time Off/Leave (PTO, Vacation or Sick Leave)

This is a fully onsite position in Rancho Cucamonga,CA.

This position is anticipated to close on Jun 16, 2026.

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.

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.

San Francisco Fair Chance Ordinance: Pursuant to the San Francisco Fair Chance Ordinance, for all positions located in the city and county of San Francisco, we will consider for employment qualified applicants with arrest and conviction records.

Massachusetts Lie Detector: It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

Use of Artificial Intelligence (AI): We may use Artificial Intelligence (AI) to support parts of our hiring process, including sourcing, screening, and evaluating candidates. AI helps assess applications and qualifications, but final decisions are made by our hiring team. By applying, you acknowledge and agree that your application may be reviewed using AI tools.