System Administrator- Tier III
- Compensation
- Not disclosed
- Location
- Louisville, KY
- Work setup
- Not specified
- Seniority
- Not specified
- Employment
- Full time
- Experience
- 1+ years
- Category
- Devops
- Posted
Skills
Must have
- 5–7 years of relevant IT experience.
- 1–3 years of experience in a senior technical or Tier III role.
- Strong working knowledge of Microsoft Desktop and Server operating systems, including Windows 10/11 and Server 2016/2019/2022/2025.
- Expertise with Active Directory, Microsoft Entra ID (Azure AD), Exchange, Microsoft 365, and Intune.
- Strong understanding of networking principles, including switches, routers, firewalls, and wireless technologies.
- Proficiency in server virtualization (on-premise and cloud-hosted, e.g., Hyper-V, VMware, Azure).
- Excellent written, verbal, and interpersonal communication skills.
- Strong PowerShell scripting and automation abilities preferred.
Nice to have
- Bachelor’s degree in an IT-related field.
- Industry certifications (Microsoft, VMware, Cisco, Meraki, CompTIA, etc.).
- Experience with storage technologies (NAS, SAN, cloud storage such as Azure Files or AWS).
- Previous experience supporting multiple client environments in an MSP setting.
Full description
System Administrator – Tier III
System Administrator - Tier III
Reports to: Service Manager
Hours Required: Full-time (40 hours per week)
Location: Louisville, KY
About Advanced Business Solutions
Founded in 1995, Advanced Business Solutions (ABS) is a Customer Service company first and an IT Service company second. We’ve experienced consistent growth and expansion, creating exciting opportunities for advancement within our team.
At ABS, we encourage ingenuity, creativity, and continuous improvement in all aspects of our business. The key to our success is our constant desire to enhance the Customer Experience through technology, teamwork, and trust.
Position Summary
The System Administrator – Tier III (also referred to as a Tier 3 Technician) is a proactive, self-motivated professional with advanced troubleshooting and analytical skills. This individual thrives in a fast-paced, service-oriented environment and holds themselves to a high standard of technical and customer service excellence.
The ideal candidate is detail-oriented, customer-focused, and possesses a positive “can-do” attitude. They exhibit strong critical thinking, perseverance, and adaptability. As an escalation point for complex technical issues, this role demands leadership, ownership, and a passion for creating and implementing effective solutions.
At ABS, our Tier III technicians are leaders—collaborators who bring creativity and empathy to their work. They understand that trust and integrity are the foundation of every customer relationship. The right candidate is knowledgeable, authentic, personable, and passionate about helping people achieve more through technology.
Essential Duties & Responsibilities
During your first month at ABS, you’ll be trained on the ABS Way and our internal systems used to provide best-in-class service. Once trained, your responsibilities will include (but are not limited to):
- Troubleshoot advanced technical issues involving desktops, servers, networking equipment, and storage appliances.
- Work directly with vendors to support hundreds of applications across diverse customer environments.
- Act as the escalation point for advanced technical problems and take ownership of high-profile or complex issues.
- Provide leadership and serve as a Senior Technical Resource for Tier I and Tier II technicians.
- Lead root-cause analysis (RCA) investigations and implement permanent resolutions.
- Participate in the planning and execution of infrastructure upgrades, cloud migrations, and new client onboardings.