Senior Systems Engineer

About Re:Build At Re:Build, our mission is to ensure the next generation of important products are made, at scale, in America. We are laying the foundation for a better future for our customers, employees, and communities by revitalizing America's manufacturing base and creating meaningful jobs across the country, including in historically deindustrialized regions. We operate an advanced, end-to-end manufacturing platform that partners with industrial companies and innovators to take products from first concept to full-scale production in critical verticals including aerospace and defense, electrification, medical, energy and environment, and robotics and automation. The way we operate is as important as the work we do. It's guided by The Re:Build Way, 16 principles that shape how we collaborate with each other, partner with our customers and vendors, and contribute to the communities where we operate. (link to The Re:Build Way principles ) Who we are looking for The Senior Systems Engineer designs, implements, secures, and supports enterprise IT systems across a  multi-site manufacturing environment . This is a  hands-on senior role  requiring deep technical expertise, strong operational ownership, and effective partnership with business and technical teams. The role owns resolving operational issues while also leading infrastructure modernization and enterprise delivery initiatives across hybrid and cloud environments. 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. Prefer