Tier III Systems Engineer
Job Description
Job DescriptionTier III Systems Engineer
Position Overview:CNI is seeking an experienced Tier III Systems Engineer to serve as the senior technical authority for our managed services clients. This role acts as the final escalation point for complex technical issues while also leading infrastructure projects and advising client leadership on best-fit IT solutions.
The ideal candidate is a seasoned systems engineer who combines deep technical expertise with strong problem-solving skills, project ownership, and the ability to communicate confidently with both technical teams and client executives.
The candidate will be working in our Glen Allen Virginia office.
Key Responsibilities:
Technical Leadership & Escalations
Serve as the final escalation point for Tier I and Tier II support teams
Troubleshoot and resolve complex, high-impact issues across client environments
Perform deep root-cause analysis and implement long-term, sustainable solutions
Mentor and guide Tier I & II engineers on advanced troubleshooting and best practices
Infrastructure & Project Delivery
Lead and execute projects related to clients’ overall IT infrastructure, including:
Server deployments and migrations
Virtualization platforms
Network architecture improvements
Cloud initiatives
Security enhancements
Own projects from design through implementation and documentation
Balance project work with high-priority operational support
Client Advisory & Strategy
Act as a trusted technical advisor to client points of contact and C-level stakeholders
Translate business needs into secure, scalable, and cost-effective IT solutions
Provide guidance on infrastructure roadmap planning and technology decisions
Communicate technical concepts clearly to non-technical audiences
Technical Expertise Required:
Advanced knowledge of:
Microsoft 365 platform including Entra, Exchange, Intune, Purview
Windows and/or Linux server environments
Google Workspace Admin platform
Virtualization platforms (VMware, Hyper-V, or similar)
Networking (routing, switching, firewalls, VPNs)
Public and private cloud platforms (Azure, AWS, etc.)
Cybersecurity principles and best practices
Strong troubleshooting methodology and documentation skills
Experience operating in a managed services or multi-client environment preferred
Professional Skills & Attributes:
Self-directed and comfortable owning complex problems end-to-end
Strong research skills and persistence when dealing with ambiguous issues
Excellent written and verbal communication
Calm and methodical under pressure
Able to balance technical depth with business awareness
Benefits & Compensation
Health Care Reimbursement Account (HRA):
$400/month tax-free for employees
$800/month tax-free for employees with dependents
Eligible after 90 days of employment
(Health insurance required to participate; funds may be used for premiums, dental, vision, medical copays, and prescriptions)
Paid Time Off: 120 hours accrued annually, eligible after 90 days of employment. Holiday pay begins day 1.
Competitive salary based on experience
Opportunities for growth, influence, and technical ownership
Why This Role Matters:
This position is critical to maintaining technical excellence, client trust, and long-term infrastructure stability. The Tier III Systems Engineer is not just a problem solver — they are a technical leader and advisor who shapes how clients experience CNI.