Tier III IT Engineer

Our Direct Client has a new Tier 3 Engineer job. The Tier 3 Engineer is a senior-level technical role responsible for handling escalated support issues, leading complex technical engagements, and mentoring team members. This position requires advanced knowledge across cloud and on-premises environments, with strong emphasis on security, documentation, and client communication.

Key Responsibilities

• Serve as the final escalation point for in-house technical support and ticket resolution.
• Act as a subject matter expert in Microsoft cloud solutions and related platforms.
• Manage cloud and on-premises server environments, including virtualization and role configuration.
• Implement and maintain security solutions (e.g., MFA, EDR, MDR).
• Produce high-quality documentation, training materials, and knowledge transfer for clients and internal teams.
• Mentor engineers and support professional development initiatives.
• Troubleshoot and maintain network infrastructure: firewalls, switches, VLANs, wireless, segmentation, and related technologies.
• Respond to Priority One incidents, including on-site support when necessary.
• Collaborate with the security and compliance team on internal and client-related initiatives.
• Assist with onboarding and offboarding processes for new and existing clients.
• Participate in the after-hours support rotation.

Required Skills

Technical Skills

• Expert-level experience with Windows Server (2025 and earlier), including commonly used roles and features.
• Advanced virtualization skills (Hyper-V, VMware).
• Proficiency with Microsoft 365 (Exchange, SharePoint, OneDrive, Azure).
• Strong knowledge of Windows client operating systems.
• Advanced networking skills: firewalls, switches, VLANs, VPNs, QoS, DNS (LAN/WAN).
• Proficient in VPN technologies across multiple vendors.
• Experience managing and troubleshooting VoIP systems.
• Familiarity with security tools including MDR, EDR, and antivirus platforms.
• Strong background in backup and disaster recovery solutions (Veeam, StorageCraft, etc.).

Soft Skills

• Exceptional written and verbal communication, with a strong focus on documentation and training.
• Ability to manage multiple ongoing engagements effectively.
• Commitment to SOPs and continuous process improvement.
• Strong critical thinking, problem-solving, and organizational abilities.
• Collaborative attitude with leadership and mentoring capabilities.

Qualifications

• 5+ years of experience in a similar senior technical role.
• Relevant certifications (Microsoft 365, Windows Server, Security+, SonicWall, etc.).
• Degree in IT or a related field preferred but not required.
• Willingness to pursue additional certifications as needed.

• If you are interested in this Tier 3 Engineer job please apply now to be connected with a member of our team.

Please note: Applying to this role is an agreement to have your information entered into our database and acknowledgement that a recruiter will reach out to you either by phone, email, and/or text message regarding this and similar job opportunities.

Aquinas Consulting is a woman and minority owned company headquartered in Milford, CT that provides Engineering, Information Technology (IT), and Manufacturing staffing solutions throughout the US. We take pride in 20 years of service to our clients, our hiring managers, our consultants, and our local community.  Aquinas is an affirmative action, equal opportunity employer and committed to considering all qualified applications without regard to race, genetic information, sex, age, color, religion, national origin, veteran status, disability or any other characteristic protected by law. www.aquinasconsulting.com