Systems & Network Administrator

The Systems & Network Administrator is a hands-on technical role responsible for the day-to-day administration, troubleshooting, remediation, and modernization of DMA’s server, identity, and network infrastructure across a multi-site distribution and manufacturing environment.

Reporting to the IT Manager, this position will serve as a senior technical execution partner within the IT department. The successful candidate will be comfortable working in a legacy environment while helping DMA modernize its infrastructure, reduce technical debt, strengthen security, and establish durable, well-documented operating practices.

This is an ideal opportunity for a technically strong professional who enjoys solving complex infrastructure problems, improving systems, and taking ownership of projects from planning through completion., Active Directory & Windows Server

• Administer and maintain the Windows Active Directory environment, including DNS, DHCP, Group Policy, replication health, Sites and Services, and related services.
• Support domain controller lifecycle activities, including clean builds, migrations, promotions, demotions, and FSMO role transfers.
• Assist with Active Directory security remediation and modernization initiatives, including:
• End-of-life server retirement
• SMBv1 elimination
• krbtgt account hygiene
• LAPS implementation
• Privileged-group reduction
• Tiered administration
• Administer and maintain Windows Server workloads supporting business operations.
• Support Certificate Services and related infrastructure as part of the company’s certificate authority migration initiatives., * Support and maintain a multi-vendor environment including Meraki MX firewalls, UniFi, and Fortinet technologies.
• Configure and maintain network switching and routing infrastructure, including:
• VLANs
• Trunking
• Routing
• STP
• DHCP scopes
• NTP
• SNMP
• Management-plane security
• Support network segmentation initiatives designed to reduce lateral-movement risk and improve network security.
• Help transition legacy flat networks to appropriately segmented, purpose-specific VLAN environments.
• Maintain configuration backups, change records, network diagrams, and infrastructure documentation.
• Follow established change-control procedures for all infrastructure changes.

Security, Patching & Operational Hygiene

• Administer and support endpoint protection, patch management, vulnerability management, and other infrastructure security initiatives.
• Assist the IT Manager in maintaining and improving DMA’s overall cybersecurity posture.
• Approach infrastructure changes with an audit-first mindset by appropriately scoping, testing, documenting, and preparing rollback plans before major changes.
• Maintain strict privileged-access and credential-management standards.
• Protect sensitive credentials by using DMA’s approved credential-management solution.
• Ensure credentials are never improperly shared, hard-coded, stored in plaintext, or maintained outside approved systems and procedures., * Understand and apply appropriate recovery methods, including bare-metal, system-state, and domain-controller-safe restoration.
• Assist with disaster recovery testing and validation to ensure backups can be successfully restored when needed.
• Develop, maintain, and improve PowerShell automation to increase efficiency and consistency.
• Favor read-only data collection and validation before implementing state-changing automation or infrastructure changes.

Documentation, Support & Collaboration

• Create and maintain technical runbooks, configuration records, network documentation, asset information, and other IT documentation according to DMA standards.
• Ensure critical knowledge is documented and accessible to the broader IT team rather than residing with a single individual.
• Provide escalation-level technical support to the Helpdesk team.
• Mentor and support junior IT team members in systems administration, networking, and troubleshooting fundamentals.
• Communicate effectively with employees, department leaders, and executive leadership.
• Translate technical issues, risks, and recommendations into clear business terms.
• Support infrastructure and technology requirements associated with NetSuite ERP, EDI integrations, and other business systems as directed by the IT Manager., * Develop a strong understanding of DMA’s Active Directory environment, network topology, infrastructure, and multi-site inventory.
• Validate and improve the accuracy of existing IT documentation.
• Independently manage routine Active Directory, DNS/DHCP, Group Policy, switch, and firewall change requests within established change-control procedures.
• Take ownership of at least one infrastructure remediation or security-hardening initiative from planning through completion.
• Develop appropriate documentation, runbooks, and rollback procedures for assigned projects.
• Demonstrate consistent documentation, security, and credential-management practices.
• Build strong working relationships with the IT team and internal business users.
• Demonstrate the ability to troubleshoot issues independently while knowing when to escalate complex or high-risk changes.

• 5+ years of hands-on experience in systems and network administration.
• Demonstrated experience working in legacy, complex, or technical-debt environments, including server migrations, domain controller projects, infrastructure remediation, or network re-segmentation.
• Advanced hands-on experience with:
• Active Directory
• DNS
• DHCP
• Group Policy
• Active Directory replication
• FSMO roles
• Strong Layer 2/Layer 3 networking fundamentals, including:
• Routing
• Subnetting
• VLANs
• Trunking
• STP
• Hands-on experience administering at least one enterprise firewall or network platform such as Meraki, Fortinet, or UniFi.
• Working knowledge of IT security practices, patch management, vulnerability management, data protection, and disaster recovery.
• Strong understanding of privileged-access management and credential security.
• Excellent troubleshooting, analytical, and problem-solving skills.
• Ability to explain complex technical concepts clearly to non-technical employees and business leaders.
• Strong documentation and organizational skills.
• Associate’s degree in Information Technology, Computer Science, or a related field, or equivalent professional experience., * Experience supporting multiple network platforms, including Meraki, Fortinet/FortiGate/FortiSwitch, and UniFi.
• Experience with Active Directory security remediation, including:
• LAPS
• PingCastle or similar AD security assessments
• Tiered administration
• Certificate Services
• Experience with Microsoft 365, Entra ID, and hybrid identity environments, including Entra Connect.
• Experience with backup and NAS platforms such as Synology.
• Experience with ManageEngine Endpoint Central.
• Experience with monitoring and security platforms such as Zabbix or Wazuh.
• Experience supporting NetSuite ERP and EDI environments.
• Bachelor’s degree in Information Technology, Computer Science, or a related field.
• Relevant technical certifications, such as:
• Microsoft AZ-800/AZ-801 or legacy MCSA
• CCNA or Meraki CMNA
• Fortinet certifications
• CompTIA Security+ or A+

Founded in 2008, DMA Industries, LLC has grown into a leading supplier of automotive aftermarket parts across North America. Our success is driven by innovation, entrepreneurial thinking, collaboration, and an unwavering commitment to operational excellence., Why Join DMA Industries?

At DMA Industries, you’ll have the opportunity to make a direct impact on the technology infrastructure supporting a growing, multi-site automotive aftermarket organization. This role offers the opportunity to work with a variety of technologies, solve meaningful infrastructure challenges, and help build a more secure, scalable, and reliable IT environment.

If you are a hands-on systems and network professional who enjoys solving problems, improving infrastructure, and taking ownership of technical initiatives, we’d love to hear from you.

DMA Industries is proud to be an Equal Opportunity Employer and values diversity in the workplace. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, age, disability, veteran status, or any other protected status.