What are the responsibilities and job description for the Database Engineer IV position at ADNET Systems, Inc.?
Database Engineer IV
We are seeking a highly skilled Systems Administrator / Infrastructure Engineer responsible for the administration, maintenance, security, automation, and optimization of enterprise infrastructure supporting mission-critical business operations. The ideal candidate will possess broad experience across Linux, Windows Server, VMware virtualization, VMware Horizon VDI, Microsoft SQL Server, privileged access management, and enterprise identity management technologies.
This position requires a proactive technical professional capable of managing complex environments, troubleshooting infrastructure issues, implementing security best practices, automating administrative tasks, and ensuring high availability of enterprise systems.
Duties and Responsibilities
Windows Server Administration
- Administer Microsoft Windows Server operating systems in enterprise environments.
- Manage Active Directory domains, forests, organizational units, users, groups, and computer accounts. And maintain Group Policy Objects (GPOs).
- Configure and maintain DNS and DHCP services.
- Perform server patching, software deployment, and lifecycle maintenance.
- Troubleshoot Windows Server performance, authentication, networking, and operating system issues.
- Support backup, recovery, disaster recovery, and business continuity operations.
Linux Systems Administration
- Install, configure, administer, and maintain enterprise Linux operating systems.
- Manage Linux file systems, directory structures, user accounts, groups, and file permissions.
- Monitor server health, system performance, and resource utilization and analyze system logs to identify operational issues and security events.
- Develop and maintain Bash scripts to automate routine administrative functions.
- Administer storage volumes, partitions, filesystems, and Logical Volume Manager (LVM).
VMware Infrastructure Administration
- Install, configure, maintain, and support VMware ESXi hosts and vCenter Server infrastructure.
- Administer VMware Horizon Desktop Infrastructure (VDI) including Connection Servers and Unified Access Gateways.
- Create and manage datacenters, clusters, resource pools, virtual machines, and templates.
- Configure VMware networking, virtual switches, VLANs, and distributed networking.
- Manage enterprise storage including VMFS, NFS, iSCSI, Fibre Channel, and vSAN environments.
- Perform virtual machine provisioning, cloning, snapshot management, and storage optimization.
- Execute VMware lifecycle management including firmware, drivers, and hypervisor updates.
- Configure and maintain High Availability (HA), Distributed Resource Scheduler (DRS), Fault Tolerance (FT), vMotion, and Storage vMotion.
- Monitor virtualization platform health and optimize system performance.
Enterprise Security and Compliance
- Implement security best practices across Linux, Windows, VMware, SQL Server, and identity management platforms.
- Apply security patches, vulnerability remediation, and configuration hardening.
- Monitor systems for security events and respond to operational incidents.
- Ensure compliance with organizational policies, security standards, and regulatory requirements.
- Maintain documentation supporting audits, accreditation, and operational readiness.
Operational Support, Automation and Process Improvement
- Develop PowerShell, Bash, and SQL scripts to automate routine operational tasks.
- Identify opportunities to improve efficiency through automation and standardization.
- Provide Tier III technical support for enterprise infrastructure and mission-critical systems.
Preferred Certifications
- Red Hat Certified System Administrator (RHCSA)
- Red Hat Certified Engineer (RHCE)
- Microsoft Certified: Windows Server Hybrid Administrator Associate
- VMware Certified Professional – Data Center Virtualization (VCP-DCV)
- VMware Certified Professional – Desktop Management (VCP-DTM)
- Microsoft Certified: Azure Administrator Associate
- Microsoft Certified: Azure Database Administrator Associate
- Microsoft Certified: SQL Server certifications
- Delinea Secret Server Certification
- Hitachi ID Certification
- CompTIA Security
- CISSP (preferred)
Basic Qualifications
- Bachelor's degree in Information Technology, Computer Science, Information Systems, or a related discipline; equivalent experience may be considered.
- 12 years of enterprise systems administration experience.
- Organized and detail-oriented
- Strong leadership skills
- Self-motivated/ self-directing
- Strong collaboration, prioritization, and adaptability skills required. Relationship building
- Ability to manage and prioritize own work, and that of their team
- Independent decision making
- Analytical thinking; thinking out of the box
- Ability to effectively communicate with all organizational levels (SME to Senior management)
- Ability to analyze problems at various levels (e.g. detail level, overall organizational impact, etc.)
- Excellent customer service skills
- Excellent oral and written communication skills
- Must be able to lift and carry 50 lbs. for up to 100 feet at a time; must be able to lift 25 lbs. vertically using ladders
- Must be able to work in confined spaces, such as raised floors or communications closets; must be able to work in noisy environments, such as data centers and operations centers; must be able to stand or sit for 8 hours at a time
Preferred Qualifications
- Experience supporting highly available production environments.
- Experience with infrastructure automation and scripting.
- Knowledge of cybersecurity best practices and compliance frameworks.
- Experience working within ITIL-based operational environments.
- Strong analytical, troubleshooting, and problem-solving skills.
- Excellent verbal and written communication skills.