Senior Systems Engineer

What you get to do! Escalation Support & Availability Own and resolve Tier 3 incidents involving hardware, software, identity, endpoints, and infrastructure. Monitor system health, diagnose root causes, and implement permanent fixes to maintain uptime. Serve as the final resolution point for complex, high-impact technical issues. Enterprise Projects & Architecture Lead end-to-end delivery of enterprise initiatives, including system migrations, new implementations, upgrades, and modernization efforts. Design, configure, upgrade, manage, and solve systems across on-premises, hybrid, and cloud environments . Partner with collaborators to gather requirements, design solutions, implement changes, document outcomes, and complete operational handoff. Establish and enhance standard processes for system design, testing, implementation, security, and operational support . Cloud, Identity & Collaboration Design and support solutions across Microsoft Azure, AWS, and Microsoft 365 within hybrid and multi‑cloud environments. Administer Microsoft Entra ID , including Conditional Access, Privileged Identity Management (PIM), identity governance, and MFA. Support Microsoft 365 collaboration and productivity services including Teams, SharePoint Online, Exchange Online , Intune , and Defender . Integrate identity and access controls across Azure, AWS, and on‑premises environments , supporting secure authentication, authorization, and least‑privilege access. Lead cloud and collaboration migrations, including on‑premises to cloud , tenant‑to‑tenant , and post‑acquisition integrations. Endpoint, Server & Core Infrastructure Administer and support Windows 10 and Windows 11 enterprise endpoint environments , including mixed or partially migrated deployments. Design, monitor and support Windows Server environments up to and including Windows Server 2022 . Support Active Directory , DNS, DHCP, certificates, and core identity services. Administer virtualization platforms including VMware and Hyper‑V . Hybrid, Multi‑Environment Architecture Design and support hybrid architectures spanning on‑premises infrastructure and cloud platforms. Work within multi‑forest Active Directory , multi‑tenant Microsoft 365 , and multi‑cloud environments (Azure, AWS, VMware). Partner with software development and digital teams to ensure infrastructure enables secure, scalable solutions. Networking & Security Design and support network infrastructure including firewalls, VLANs, VPNs, routing, switching, and access points . Administer and support Fortinet network and security equipment . Implement security‑first architectures aligned with Zero Trust principles . Support regulated environments including Microsoft 365 GCC High , Azure Government , and AWS GovCloud . Participate in environments where FedRAMP and other regulatory requirements may apply. Automation, Documentation & Leadership Drive automation and scripting to improve reliability and reduce manual effort. Create and maintain Standard Operating Procedures (SOPs) , knowledge base articles , and fixing guides . Provide clear ticket communication and technical guidance to collaborators. Mentor and support other IT and technology teams across the organization. What you bring to the Team Required Bachelor’s degree in Information Technology or related field, or equivalent experience. 7+ years delivering enterprise IT solutions end‑to‑end. 7+ years diagnosing and resolving complex IT issues. 5+ years of hands‑on experience managing Microsoft Azure environments. Hands‑on experience supporting Windows 10 and Windows 11 enterprise environments , including upgrade planning and mixed deployments. Experience handling Windows Server environments up to Server 2022 . Deep experience with Microsoft 365 , including Entra ID, Teams, SharePoint, Intune, Defender, and Exchange. Strong experience with Active Directory , DNS, DHCP, certificates, and hybrid identity. Experience designing and supporting hybrid, multi‑forest, multi‑tenant, and multi‑cloud architectures . Hands‑on experience supporting regulated government cloud environments, including Microsoft 365 GCC High, Azure Government, AWS GovCloud, and environments aligned to FedRAMP and/or ITAR requirements. Strong written and verbal communication skills with the ability to document clearly. Strong experience in prioritizing leading competing workstreams. Preferred Experience with Fortinet networking and security equipment. Exposure to OT networking in manufacturing environments. Familiarity with ITIL processes . Exposure to CAD systems such as SolidWorks. Location and Work Week: Hybrid Work Week 3 days in / 2 days remote onsite at our Rochester, NY location. Compensation Range is a base of $80,000 - $135,000, plus annual cash bonus and long term incentive. Re:Build Manufacturing is proud to be an Equal Employment Opportunity and Affimative Action employer. We do not discriminate based upon race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, veteran status, marital status, parental status, cultural background, organizational level, work styles, tenure and life experiences. Or for any other reason. Re:Build is committed to providing reasonable accommodations for qualified individuals with disabilities in our job application procedures. If you need assistance or an accommodation due to a disability, you may contact us at View email address on click.appcast.io or you may call us at View phone number on click.appcast.io. #J-18808-Ljbffr