Senior Infrastructure Engineer

Job Summary:

The Senior Infrastructure Engineer is a strategic technical leader responsible for architecting, implementing, and supporting complex infrastructure solutions across client environments. This role combines deep technical expertise with consultative skills to design scalable, secure, and high-performing systems across virtualization, storage, backup, server, and application platforms. The ideal candidate is both a hands-on engineer and a trusted client advisor, capable of solving advanced infrastructure challenges and guiding clients through IT modernization, business continuity, and digital transformation initiatives.

Supervisory Responsibilities

· None.

Endpoint Duties & Responsibilities:

· Manages virtual infrastructure across VMware, Hyper-V, and Scale Computing hyperconverged systems.

· Designs and supports scalable hosting environments to meet uptime, performance, and security objectives.

· Leads virtualization migrations, upgrades, and performance optimization projects.

· Architects and maintains Windows Server and Linux (Red Hat, CentOS, Ubuntu, CloudOS) environments.

· Configures and manages Active Directory, ADSync, Group Policy, and File Servers (mapped drives).

· Manages Remote Desktop Services/Terminal Services, Citrix, and TruGrid for remote access solutions.

· Deploys and manages cPanel/WHM environments for client and internal hosting needs.

· Configures, monitors, and supports NAS (Network Attached Storage) systems for high-availability data storage and access.

· Administers web server environments including SSL certificate installation, renewal, and automation.

· Manages API, batch, and development certificates in coordination with application and DevOps teams.

· Supports and administers MS SQL, MySQL, and Progress databases for application and business continuity needs.

· Ensures database backup, performance tuning, and security best practices.

· Implements and monitors data protection using Acronis, Backup Radar, Datto Endpoint Backup, and other server/desktop backup systems.

· Manages Disaster Recovery planning and testing initiatives.

· Develops Business Continuity strategies and ensure clients are prepared for outage and recovery scenarios.

o Provides infrastructure support and integration expertise for business-critical line of business systems such as: Great Plains, QuickBooks, Epicor, ACI,, CAD/Design, client-specific CRMs

· Partners with clients to align technology solutions with operational goals and compliance needs.

· Serves as a trusted advisor to clients, offering strategic guidance on infrastructure modernization, system integration, and IT risk mitigation.

· Documents solutions, prepare infrastructure roadmaps, and aligns with client budgets and goals.

· 20% Travel to client sites (New Berlin).

· Performs other duties as assigned. 

Product Ownership and System Maintenance

· Primary owner and responsible party for the assigned toolsets/platforms/vendors and their outcomes, specifically: Windows Server, RHEL, Citrix, Scale Computing, cPanel, Certificate Management, SQL/Database systems, NAS/Storage, Backup Radar, Acronis, and Datto Backup.

· Expected to make system adjustments, recommendations, and improvements.

· Create recurring maintenance procedure and effectively execute.

· Expected to be knowledgeable on related topics/systems to complete projects, onboardings, support escalations.

· Ability to estimate subject area labor, software, licensing, and hardware costs.

Time Commitments & On-Call Expectations:

· Full-Time Role – Regular business hours with flexibility as required by project or incident response needs.

· On-Call Rotation – Participate in Tier 1 NOC and Tier 2 SOC escalation rotation every 2–3 months for a 2-week period.

· Tier 3 On-Call – Always available 24x7 for your designated area of responsibility. If Tier 2 (Tech Management) cannot resolve an issue, you are expected to respond to Tier 3 on-call inquiries within 2–4 hours.

· Work from Home with 20-40% average travel to local area client sites per week

Required Skills & Abilities: 

· Deep understanding of IT best practices in security, redundancy, and scalability.

· Ability to work in a fast-paced environment and manage shifting priorities.

· Strong problem-solving skills and the ability to think critically in complex situations.

· Excellent organizational skills with attention to detail.

· Excellent documentation, communication, and time-management skills.

Education & Experience:

· Bachelor's degree in Information Technology, Computer Science, or related field; or equivalent work experience.

· 5+ years of experience in infrastructure engineering, systems administration, or consulting roles.

· Proven experience with virtualization, storage, Windows/Linux server platforms, and disaster recovery.

· Experience with cPanel/WHM, database administration, and Active Directory synchronization tools is a plus.

Physical Requirements:

· Prolonged periods sitting at a desk and working on a computer.

· Occasionally, equipment may need to be lifted or moved up to 25 lbs.

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