Assess impact to network performance when consolidating Controlled Interfaces and provided guidance on the most practical technical approach to ensure effective integration and optimal network performance, create network scripts and configurations for firewalls and associated network devices such as routers, and switches to support the replacement of Controlled Interfaces, and present network designs to engineering review boards. Provide transition support for End-of-Life network hardware, provide advice and guidance on the most practical technical approach to meeting user requirements, and perform network engineering on specific sensitive Sponsor mission systems.