Performs the core responsibilities of a Senior Systems Engineer across operating systems, application hosting and middleware, identity, endpoint management, Microsoft 365 administration, certificates, deployment, monitoring, and production support, while providing additional senior-level engineering expertise in Microsoft Azure and Amazon Web Services (AWS). Provides limited network administration and troubleshooting required for systems and cloud services, including DNS, DHCP, VPC/VNet concepts, routing, firewall and port requirements, private endpoints, VPN connectivity, proxies, and load balancers; coordinates advanced network engineering with the appropriate team or provider.