Senior Spacecraft Avionics Security Engineer - Millennium Space Systems

Boeing•El Segundo, CA

3d•Onsite

About The Position

Millennium Space Systems, a part of Boeing Defense, Space and Security (BDS), is a fast, agile small satellite company focused on national security space. Our missions have direct impact to global security, like missile warning and Earth observation. Our team is curious, bold and innovative. We take risks, innovate and explore new techniques and technologies. We influence change because we challenge the status quo. And when we watch our satellites launch, we know each one of us made it happen. The Senior Spacecraft Avionics Security Engineer is the technical authority for all space vehicle and avionics product ‑level security of Millennium’s space systems. You will design, implement, and sustain cryptographic subsystems, red/black separation, and end‑to‑end security architectures that protect hardware, software, data, and communications throughout the entire vehicle lifecycle and drive security requirements, processes, and verification at the product and mission level. This position's internal job code is EE Sys Design Engineer. Our team is currently hiring for Levels 4-5.

Requirements

Bachelor of Science degree in Engineering (with a focus in Electrical, Mechanical or Aeronautical), Computer Science, Data Science, Mathematics, Physics, Chemistry or non-US equivalent qualifications directly related to the work statement
5+ years experience working spacecraft/product security
Technical understanding of SV avionics architectures
Technical understanding of SV flight software architectures to include embedded Linux
Technical understanding of product cybersecurity features to include root of trust, secure boot, etc.
Familiarity with DoD Risk Management Framework (RMF)
This position requires the ability to obtain a U.S. Security Clearance for which the U.S. Government requires U.S. Citizenship.
A final U.S. Security Clearance Post-Start is required.
Applicants MUST be U.S. citizens and eligible for a security clearance.
Additionally, applicants must be willing to apply for and maintain a security clearance.

Nice To Haves

Experience working with cryptography and Anti-Tamper design knowledge
Experience working with TEMPEST designs
Methodical design, testing, and troubleshooting capabilities
Must be versatile and able to perform and manage multiple tasks concurrently
Outstanding communication and presentation skills
Experience with DoD RMF controls implementation
10+ years experience working spacecraft/product security
TS/SCI clearance

Responsibilities

Define vehicle‑wide security architecture, select and integrate space‑qualified crypto devices, implement secure boot, key storage, and red/black isolation
Develop and maintain system security requirements, verification plans, and certification artifacts (DoD RMF, customer security clauses)
Develop threat assessment models and tailored approaches to counter them
Support product‑level security requirements definition, implementation, verification, and validation across the full lifecycle
Work with software, hardware, and systems engineering teams to develop new processes and procedures for enhanced cybersecurity implementations at both the product and system level
Lead design, requirements management, and integration of space‑vehicle and constellation‑level networks (on‑board LANs, inter‑satellite mesh, space‑to‑ground links)
Define and maintain CONOPS, ICDs, and requirements for routing, virtualization, VPN tunneling, VLAN segmentation, and QoS across heterogeneous RF/optical links.
Apply enterprise networking principles (WAN/LAN/WLAN, IPv6, MPLS, IPsec) to distributed space systems while preserving red/black separation
Direct integration and verification activities that validate networking implementations
Lead customer interactions on product and system level cybersecurity for space systems
Develop presentation content and brief customers on Millennium product security approaches
Assist the business‑development team in crafting compliant proposals that meet customer cybersecurity and networking requirements
Define security and networking requirements for component/subsystem suppliers; review supplier deliverables; liaise with government agencies, customers, and industry groups to influence standards and risk‑acceptance processes
Other duties as assigned