Windows Systems Administrator - SQL Server & Infrastructure
Listed on 2026-09-13
-
IT/Tech
Systems Administrator, Windows Server, Disaster Recovery IT, Network Administrator
Job Title: Windows Systems Administrator - SQL Server & Infrastructure
Job Location: Bronx, NY (Hybrid; 3 days onsite, 2 remote)
Pay Range: $70-$80/hr (W2), depending on experience
Duration: 12 Months+
Interview Mode: 1st round either MS Teams or onsite in the Bronx, NY (up to Hiring Manager). Potential second round as well onsite
Our Fortune 500 client located in Bronx, New York is seeking an experienced Senior Windows Systems Administrator to support, maintain, secure, and optimize critical Windows-based infrastructure and Microsoft SQL Server environments.
This role is ideal for a hands-on infrastructure professional with strong experience administering Windows Server, Active Directory, SQL Server, Power Shell, virtualization, backup/recovery, and enterprise security. The individual will be responsible for maintaining reliable and secure systems while troubleshooting complex technical issues, improving system performance, supporting disaster recovery, and automating administrative activities.
The successful candidate will work closely with customers, application and development teams, adjacent infrastructure groups, and IT leadership to resolve issues and ensure systems remain available, secure, and aligned with business requirements.
Key Responsibilities Windows Systems Administration- Administer, maintain, monitor, and optimize Windows Server 2016/2019/2022 environments.
- Manage Active Directory, Group Policy, DNS, DHCP, and Windows patching.
- Monitor system health, availability, capacity, and performance.
- Troubleshoot complex hardware, operating system, software, connectivity, and infrastructure issues.
- Perform system configuration, maintenance, upgrades, and ongoing operational support.
- Install, configure, maintain, and support Microsoft SQL Server environments.
- Monitor and troubleshoot database availability and performance.
- Write and optimize SQL queries and scripts supporting system administration, automation, and reporting.
- Partner with application and development teams to resolve SQL-related issues and improve application performance.
- Develop and maintain Power Shell scripts to automate system administration and operational tasks.
- Identify opportunities to reduce repetitive manual processes through scripting and automation.
- Support standardized, repeatable infrastructure-management practices.
- Support enterprise virtualization technologies including VMware, Hyper-V, and Nutanix.
- Troubleshoot infrastructure issues across physical and virtual environments.
- Apply working knowledge of networking fundamentals including TCP/IP, firewalls, and VPNs.
- Collaborate with networking, security, application, database, and other technical teams to resolve cross-platform issues.
- Implement, maintain, and support enterprise backup and recovery solutions.
- Support disaster recovery planning, testing, and execution.
- Help ensure critical systems can be recovered in accordance with operational requirements.
- Apply Windows infrastructure security best practices, including system hardening and vulnerability management.
- Support patching, remediation, access controls, and security-related system changes.
- Partner with cybersecurity and infrastructure teams to address vulnerabilities and maintain secure system configurations.
- Work directly with customers and technical stakeholders to investigate and resolve system issues.
- Communicate effectively with technical teams, customers, and all levels of management.
- Maintain a strong customer-outcome focus while balancing system reliability, security, and operational…
(If this job is in fact in your jurisdiction, then you may be using a Proxy or VPN to access this site, and to progress further, you should change your connectivity to another mobile device or PC).