Tier 3 Engineer

Job Description

Job Description

This role is for you if…

You are a senior-level engineer who doesn’t want to babysit tickets, but does want ownership, autonomy, and meaningful technical challenges.

This role is for you if:

• You are the person teams call when the problem is actually hard
• You enjoy digging deep into infrastructure issues and solving root causes—not applying temporary fixes
• You want to be trusted to make technical decisions and stand behind them
• You are comfortable being the escalation point for Tier 1 and Tier 2 engineers
• You like working directly with clients as a technical advisor, not a salesperson
• You care about documentation, standards, and doing things the right way
• You want to influence systems, architecture, and outcomes without managing people

If you’re looking for a role where your expertise is respected and your decisions matter, keep reading.

What You’ll Own

As a Tier 3 Engineer, you are the highest level of technical escalation. You will design, diagnose, and resolve complex infrastructure challenges across diverse environments while supporting internal engineers and leadership.

You’ll be responsible for:

• Taking escalations from Tier 1 and Tier 2 engineers and owning resolution end-to-end
• Architecting, configuring, and supporting advanced environments including:
• Physical and virtual servers
• Core network infrastructure (switching, routing, firewalls)
• Microsoft ecosystems (Windows Server, AD, DNS, DHCP, IIS, Exchange, Microsoft 365, Azure / Entra, Intune)
• Identifying root causes and implementing long-term, scalable solutions
• Supporting planning and execution of client infrastructure projects
• Providing guidance and technical leadership without micromanagement
• Producing clear, high-quality documentation for systems and procedures
• Participating in an on-call rotation for advanced issues only
• Visiting client sites when necessary (mileage reimbursed)

This Role Is Not for You If…

• You prefer scripted work or narrowly defined tasks
• You struggle with ambiguity or decision-making
• You dislike client interaction or explaining technical concepts clearly
• You expect someone else to tell you exactly what to do next
• You want people management responsibilities (this is a hands-on engineering role)

What Success Looks Like

• Complex issues are solved correctly and permanently
• Tier 1 and Tier 2 engineers improve because of your escalations and guidance
• Clients trust your recommendations and technical judgment
• Systems are stable, secure, and well-documented
• You proactively identify risks and opportunities for improvement
• You operate independently while aligning with company standards and goals

You’re Likely a Strong Fit If You Have

• 5-7 years of experience as a Systems Administrator, Server Engineer, or equivalent
• Deep expertise in Microsoft environments (Server, M365, Azure / Entra, Intune)
• Enterprise networking experience, including advanced switching and routing
• Firewall configuration experience (Cisco Meraki a plus)
• Strong scripting skills (PowerShell and/or Python)
• VMware experience (vSphere, vCenter, View)
• Backup, disaster recovery, and performance troubleshooting expertise
• Hands-on experience with rack-and-stack and physical infrastructure
• A strong habit of documentation and process improvement

Work Environment

• In-office required
• Full-time