HR Toolkit | HR Templates | Job descriptions | IT and Development job descriptions
Senior System Administrator job description
A Senior System Administrator is a seasoned IT professional responsible for maintaining, upgrading, and managing an organization's IT infrastructure, including servers, networks, and critical systems. This role is vital for ensuring business continuity, security, and operational efficiency by providing reliable and scalable technology solutions that support organizational goals.
Hiring for this role?
POST THIS JOB FOR FREE
Find more suitable candidates for this role ?
TRY FOR FREE
What is a Senior System Administrator?
A Senior System Administrator is an experienced IT expert who oversees the day-to-day operations of an organization's computer systems, servers, and network infrastructure. They handle complex technical issues, implement security measures, and ensure system reliability and performance. With advanced skills in troubleshooting, automation, and system optimization, they play a key role in maintaining IT stability and supporting business operations, often mentoring junior staff and leading infrastructure projects.
What does a Senior System Administrator do?
Senior System Administrators design, install, and maintain server environments, including operating systems, applications, and hardware. They monitor system performance, apply patches and updates, and troubleshoot issues to minimize downtime. Additionally, they implement backup and disaster recovery plans, enforce security protocols, and automate routine tasks to improve efficiency. They also collaborate with other IT teams, provide technical guidance, and document system configurations and procedures.
Job Overview
Senior System Administrator responsible for designing, implementing, and maintaining enterprise-level IT infrastructure systems. This role requires expert-level knowledge in server administration, network security, and cloud services to ensure optimal performance and reliability for mission-critical operations.
Senior System Administrator responsibilities include:
1. Administer and maintain Windows/Linux server environments including Active Directory, DNS, DHCP, and Group Policy
2. Implement and manage virtualization technologies (VMware vSphere, Hyper-V) with HA/DRS configurations
3. Monitor system performance using tools like SolarWinds, Nagios, or PRTG and optimize resource utilization
4. Design and execute disaster recovery plans and maintain 99.9% system availability SLA
5. Manage Azure/AWS cloud infrastructure including IAM, VPC, and storage solutions
6. Implement security protocols, patch management, and compliance with SOC 2, HIPAA requirements
7. Lead infrastructure projects including migrations, upgrades, and technology implementations
8. Provide Tier 3 support and mentor junior administrators in troubleshooting complex issues
1. 5+ years experience in enterprise system administration with Windows Server 2016/2019/2022
2. Expert knowledge of Active Directory, Group Policy, and PowerShell scripting
3. Proven experience with virtualization platforms (VMware vSphere 6.5+ or Hyper-V)
4. Strong understanding of networking concepts (TCP/IP, VLAN, VPN, firewall configurations)
5. Experience with backup and disaster recovery solutions (Veeam, Commvault, or equivalent)
6. Bachelor's degree in Computer Science or related technical field
7. Relevant certifications (Microsoft Certified: Azure Administrator Associate, VMware VCP, or CompTIA Server+)
Preferred Qualifications
1. Experience with cloud migration projects (on-prem to Azure/AWS)
2. Knowledge of containerization technologies (Docker, Kubernetes)
3. Experience with infrastructure-as-code tools (Terraform, Ansible, or Puppet)
4. Familiarity with SIEM tools and security incident response procedures
5. Previous experience in regulated industries (finance, healthcare, government)
6. Project management experience with Agile/Scrum methodologies
Bonus Skills
1. Programming/scripting skills in Python, Ruby, or Go
2. Experience with DevOps practices and CI/CD pipelines
3. Knowledge of SAN/NAS storage solutions (EMC, NetApp, or Pure Storage)
4. Cisco networking certifications (CCNA/CCNP)
5. Experience with monitoring and analytics platforms (Splunk, Datadog, or New Relic)
6. Bilingual capabilities in Spanish or other commonly spoken US languages
Real-time search for over 900 million precise talents globally, covering more than 200 countries and regions.
All categories
Ready to Hire?
Real-time search for over 900 million precise talents globally, covering more than 200 countries and regions.
Are you ready to innovate your recruitment process?
Join thousands of leading companies and experience the next generation of intelligent recruitment
No credit card required ｜ 7-day full-featured trial ｜ Dedicated customer support
Frequently Asked Questions
Your questions, answered
Everything you need to know about TalentSeek and how itcan transform your hiring process.
What is TalentSeek
TalentSeek is an AI-powered global recruitment platform designed to make hiring talent worldwide faster, smarter, and more affordable. Powered by advanced AI Agents, TalentSeek helps companies effortlessly connect with top professionals across borders — breaking human network limits and reducing hiring costs. Start hiring globally with ease. One platform, endless talent.
Who can use TalentSeek ?
TalentSeek is built for recruiters. If you are searching for Global Talent or hard-to-find talent, TalentSeek is a fit for you. We work with companies ranging from Fortune 500 to boutique recruiting agencies — and hopefully, you too.
What distinguishes TalentSeek from other recruitment tools?
TalentSeek is an AI-driven global recruitment platform that enables real-time searching of over 900 million job seekers across more than 200 countries and regions. This platform empowers companies to effortlessly connect with top professionals beyond borders, breaking the limitations of personal networks and reducing hiring costs.
Does TalentSeek have access to global candidate data?
Yes. TalentSeek has 900 million profiles across the globe from dozens of data sources. Covers over 200 countries and regions worldwide.We continue to add region-specific sources to enhance global coverage.
Is there a free trial available for TalentSeek?
Yes. To get started, use the "Start for Free" button to open the platform. Then, sign up or log in to access your account.
