Sr. Infrastructure Engineer

Network Doctor is a fast-growing IT managed services firm where company culture and teamwork are essential. Our firm provides IT support to hundreds of SMB companies in the NY-metro area, across a diverse range of industries including finance, healthcare, real estate, non-profit, and others.

We pride ourselves on a collaborative, team-first culture where we work together to solve complex problems and deliver high-quality solutions. Our Project Team plays a critical role in designing and implementing infrastructure solutions that directly impact our clients’ businesses.

About the Team:

The Project Team at Network Doctor is responsible for all technology implementations that require more than just a simple work order or request. They work with a wide variety of technologies, including but not limited to networking, systems administration, cloud services, security services.

About the Role:

We are seeking a hands-on Senior Infrastructure Engineer with deep experience across both cloud, Azure and on-premises environments. This is a project-focused engineering role, not a management position. You will be responsible for designing and executing end-to-end infrastructure projects, often in client-facing environments. The ideal candidate has  broad, real-world experience across servers, virtualization, networking, storage, and cloud platforms.

Key Responsibilities:

• Design and implement hybrid infrastructure solutions (Azure + on-prem)
• Lead and execute server, Active Directory, and file server migrations
  • Including DFS/DFSR, replication, coexistence strategies, FSMO roles
• Deploy and manage Azure IaaS environments
  • VNets, NSGs, VMs, identity, hybrid connectivity
• Build and maintain VMware and/or Hyper-V environments
  • Clusters, HA/DRS, storage integration
• Perform end-to-end project delivery
  • Planning → execution → documentation → handoff
• Implement VDI solutions
  • Citrix DaaS, RDS, Azure Virtual Desktop
• Configure network infrastructure
  • Firewalls, switching, VLANs, VPNs
• Deploy and manage SAN/NAS storage
  • iSCSI, LUN provisioning, redundancy
• Lead email and Microsoft 365 migrations
• Design and implement backup and disaster recovery solutions
• Create clear, usable technical documentation

Required:

• 5+ years of experience in hand-on infrastructure engineering
• Strong experience across both Azure (IaaS, identity, networking) and On-prem infrastructure (AD, VMware, storage, networking)
• Proven experience leading full lifecycle infrastructure projects
• Deep understanding of :
  • Active Directory architecture and migrations
  • File server migrations (DFS/DFSR, permissions, cutover strategies)
  • Virtualization platforms
• Experience with networking fundamentals
  • VLANs, routing, firewalls, VPNs
• Experience with backup/DR solutions (Veeam, Datto, Azure Recovery Services).
• Great verbal & written communication skills
• Team player - excels in team collaboration, Dependable & responsible
• Excellent interpersonal, customer service and problem-solving skills
• Strong time management and organizational skills with the ability to manage multiple tasks and changing priorities

Preferred:

• MSP Experience
• Advance level Azure Certifications (Solutions Architect, etc)
• Technical Certification in the above mentioned areas
• Familiarity with the ConnectWise or similar tools
• Physical ability to lift and move 50lbs