Senior Cloud Engineer

Falls Church, VA Direct Connect out of a federal data center, and the routing that makes it behave. Sienna Systems is seeking a Senior Cloud Engineer to join our U.S. Customs and Border Protection Enterprise Network Architecture & Engineering Services Support (ENAESS) team, in Ashburn, Virginia. This role sits at the seam between a large, mature on-premises network and AWS. The work is the connectivity itself — Direct Connect, routing at the internet connection point, and the security architecture between the two sides — alongside Trusted Internet Connections 3.0 migration. If you have spent your career either purely on-prem or purely in the console, this is the role that uses both. Why You'll Want This Role: $122,500 – $127,500 based on experience $10,000 signing bonus for candidates with an active CBP background investigation, payable after 60 days AWS Direct Connect and federal-scale hybrid routing, not a greenfield lift-and-shift TIC 3.0 migration work with real architectural latitude Established DHS program with a long runway and a stable government customer 401(k) with 4% matching, immediate vesting, no restrictions 3 weeks Paid Time Off plus 11 Federal Holidays Hybrid out of Ashburn, Virginia — no relocation needed if you are already in the DC metro Key Responsibilities: Lead cloud networking engineering and implementation across the enterprise. Design, implement, and operate AWS Direct Connect connectivity between government data centers and AWS. Engineer routing and security architecture at the internet connection point. Support TIC 3.0 migration planning and execution. Integrate cloud networking with the existing Cisco ACI fabric and F5 load balancing infrastructure. Support colocation implementation and management, including cloud-adjacent connectivity. Design, engineer, and implement Software Defined Networking solutions extending to cloud instances. Develop and maintain design documentation, and route it through peer review and security approval before implementation. Leverage current technologies and best practices to keep the environment secure, resilient, and cost-efficient.

US citizenship , and the ability to pass a five-year CBP background investigation (SF-85P, Public Trust). Work cannot begin until the investigation is adjudicated. Minimum 5 years of relevant cloud engineering experience Demonstrated AWS experience, including AWS Direct Connect Working knowledge of enterprise network infrastructure — routing, switching, load balancing, firewalls Ability to design hybrid connectivity between on-premises data centers and cloud environments Ability to produce design documentation to a standard that survives peer and security review Preferred Qualifications: Experience or knowledge of routing at an Internet Connection Point (ICP) A favorable CBP background investigation or DHS High Risk background investigation within the past 4 years Direct TIC 3.0 migration experience AWS certification — Solutions Architect, Advanced Networking, or SysOps Cisco networking certification (CCNA or CCNP) Federal cloud compliance experience including FedRAMP, NIST 800-53, or FISMA Data center move or migration experience Prior federal or DHS/CBP program experience Salary: $122,500 – $127,500 based on experience Job location: Ashburn, Virginia (hybrid) Company Benefits: Medical/dental/vision insurance 401(k) plan: 4% matching, immediate vesting, no restrictions 3 weeks Paid Time Off (PTO) 11 Federal Holidays Long- and short-term Disability coverage Company-sponsored Life Insurance coverage $10,000 signing bonus for candidates with an active CBP BI (payable after 90 days) Hiring Referral Bonus #LI-AC1