Systems Administrator (FT, W2s)
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Job Location:
San Diego, CA - USA
Monthly Salary:
Not Disclosed
Posted on:
15 hours ago
Vacancies:
1 Vacancy
Job Summary
WE ARE HIRING
Systems Administrator
Please ensure you read through the entire job posting and you also understand the work model expectations requirements location and qualification requirements for this role.
About Us
RSI Security is a leading cybersecurity compliance firm that specializes in providing comprehensive security assessment advisory and technical security testing services. We support organizations in navigating the complex cybersecurity landscape ensuring they achieve and maintain compliance while managing risks effectively.
About the Role
The Systems Administrator supports RSI Securitys Technical Operations team by maintaining hardening and monitoring client on-premises and cloud server infrastructures. This role is responsible for Windows Server administration virtualization platforms hybrid identity Microsoft 365 tenant operations (Commercial and GCC/GCC High) and end-to-end backup and disaster recovery. The administrator will ensure uptime security compliance data integrity and exceptional service delivery.
What Youll Do
- Manage and secure Windows Server virtualization and core AD identity services
- Administer Microsoft 365 and enforce security controls (MFA Conditional Access)
- Support GCC/GCC High environments and compliance requirements
- Perform tenant hardening migrations and mail cutovers
- Operate Datto backups and maintain strong DR/BCP readiness
- Lead P1 incidents with fast MTTR and follow change-management standards
- Communicate clearly during major incidents and document all technical actions
- Guide clients on modernization cloud migration and security improvements
- Support hardware refreshes virtualization optimization and DR enhancements
- Provide remote/onsite support and maintain runbooks SOPs IT Glue and KBs
- Mentor junior technicians and keep documentation accurate and up to date
What Youll Bring
- Microsoft certifications in Windows Server Hybrid Administration Microsoft 365 Administration and Azure Administration with baseline security knowledge (SC-900 Security or equivalent)
- Hands-on experience with Microsoft 365 GCC/GCC High Azure Government and related compliance frameworks (FedRAMP CMMC DFARS ITAR)
- Additional value-add certifications such as VMware VCP or Veeam/Datto
- Strong PowerShell and automation capability
- 37 years administering Windows Server plus 3 years supporting VMware/Hyper-V virtualization
- 2 years managing Microsoft 365 environments
- Practical experience in regulated cloud environments and with server migrations identity sync and secure baseline implementation
Mindset We Value
- Owns reliability of systems and communicates status proactively.
- Performs effectively during high-severity incidents.
- Works seamlessly with service desk engineering and security teams; mentors junior technicians.
- Seeks certifications automates repetitive tasks & recommends process enhancements.
- Protects client data enforces least-privilege access and follows compliance procedures.
What We Offer
- Competitive salary and commission eligibility.
- Flexible work environment.
- Comprehensive health dental and vision insurance.
- 401(k) retirement plan with employer match.
- Company-paid life insurance and short/long-term disability coverage.
- Professional development and certification reimbursement.
- Collaborative team culture rooted in trust and humility.
Our commitment to equity equal opportunity inclusion and diversity is part of our broader commitment to respecting fundamental human rights across our value chain. RSI Security is proud to be an Equal Opportunity Employer. The Company will consider for employment qualified applicants with arrest and conviction records.
Equal Opportunity Employer/Veterans/Disabled
For more information on RSI Security please visit our website - or our social media RSI Security LinkedIn. On our career site you will find some of the key steps you can expect to guide you along the way.
Required Experience:
Senior IC
Key Skills
- Computer Science
- Active Directory
- Computer information Technology
- PowerShell
- OS
- Windows
- Database
- SCCM
- Linux
- SAN
- Troubleshoot
- Backup
- Setup
- Technical Support
- UNIX
About Company
RSI Security is an expert cybersecurity and managed IT security provider. Helping companies achieving compliance and risk-management success in all industries. Contact us today!
