Senior Systems Administrator (Windows/Linux - Migrations)

Austin, TX, US • Posted 3 hours ago • Updated 31 minutes ago
Contract W2
On-site
USD42 - USD47/hr
Fitment

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Job Details

Skills

  • Senior Systems Administrator (Windows/Linux - Migrations)

Summary

job summary:

We are seeking a Senior Support Technician to support a large-scale infrastructure modernization effort focused on upgrading and migrating legacy Windows Server and RHEL systems. This role will play a key part in improving system performance, security, and stability across enterprise environments.


The ideal candidate has strong experience in system administration, OS migrations, and automation, with the ability to work across both Windows and Linux environments. This is a hands-on role requiring troubleshooting expertise, a security-first mindset, and collaboration with cross-functional IT teams in a hybrid work environment.





location: Austin, Texas

job type: Contract

salary: $41.50 - 46.50 per hour

work hours: 8am to 5pm

education: High School



responsibilities:

Job Responsibilities

  • Lead migration of legacy Windows Server and RHEL systems to modern, supported environments
  • Assess existing systems and develop upgrade strategies based on risk, security, and business impact
  • Execute OS upgrades and system rebuilds while minimizing downtime and disruption
  • Perform system validation post-migration (performance, compatibility, networking, services)
  • Configure and maintain system settings including security, storage, and networking
  • Automate system administration tasks using tools such as PowerShell, Bash, and Ansible
  • Apply system hardening, patching, and vulnerability remediation in line with security standards
  • Troubleshoot and resolve system and application issues across Windows and Linux environments
  • Support backup, recovery, and disaster recovery planning and execution
  • Document system configurations, migration activities, and operational procedures
  • Collaborate with cross-functional teams to ensure successful system integration and delivery
  • Provide ongoing support and optimization of systems post-migration




qualifications:

Qualifications


- 8+ years of experience administering both Windows Server and RHEL environments


- Proven experience performing OS upgrades and migrations (legacy/EOL systems preferred)


- Strong hands-on experience with RHEL (5-9) and Windows Server (2008-2022)


- Proficiency in scripting and automation (PowerShell, Bash, Ansible)


- Experience with system hardening, patching, and vulnerability remediation


- Strong troubleshooting skills across both Linux and Windows systems


- Experience working in virtualized environments (e.g., VMware)


- Strong documentation and cross-team collaboration skills


Nice to Have:


- Experience with STIG/CIS compliance and security frameworks


- Familiarity with vulnerability scanning tools (e.g., Nessus, OpenSCAP)


- Experience with backup and disaster recovery solutions


- Relevant certifications (Security+, RHCSA/RHCE, Microsoft certifications)




Equal Opportunity Employer: Race, Color, Religion, Sex, Sexual Orientation, Gender Identity, National Origin, Age, Genetic Information, Disability, Protected Veteran Status, or any other legally protected group status.

At Randstad Digital, we welcome people of all abilities and want to ensure that our hiring and interview process meets the needs of all applicants. If you require a reasonable accommodation to make your application or interview experience a great one, please contact

Pay offered to a successful candidate will be based on several factors including the candidate's education, work experience, work location, specific job duties, certifications, etc. In addition, Randstad Digital offers a comprehensive benefits package, including: medical, prescription, dental, vision, AD&D, and life insurance offerings, short-term disability, and a 401K plan (all benefits are based on eligibility).

This posting is open for thirty (30) days.


Employers have access to artificial intelligence language tools (“AI”) that help generate and enhance job descriptions and AI may have been used to create this description. The position description has been reviewed for accuracy and Dice believes it to correctly reflect the job opportunity.
  • Dice Id: cxsapwma1
  • Position Id: 1328723
  • Posted 3 hours ago
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