Senior Spacecraft Command and Data Handling; C&DH Engineer

Senior Spacecraft Command and Data Handling (C&DH) Engineer - Millennium Space Systems

Company:

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.

Job
Summary
:

As a Senior Spacecraft Command and Data Handling (C&DH) Engineer, you will serve as a primary technical authority for the electrical hardware and avionics architectures critical to Millennium’s space vehicles. You will drive the strategic design of vehicle architectures, ensuring they meet complex mission requirements while optimizing for performance, manufacturability, and cost. You thrive with a high degree of autonomy and responsibility and can communicate technical concepts clearly and concisely to both technical and non-technical stakeholders.

This position's internal job code is EE Sys Design Engineer. Our team is currently hiring for Levels 4-5.

• Level 4:
  Focuses on technical leadership of specific programs/portfolios. You will act as a subject matter expert (SME) for C&DH, driving complex technical designs, managing high-stakes trade studies, and providing critical technical oversight during integration and testing to ensure mission success

• Level 5:
  Focuses on technical strategy and organizational impact of the C&DH group. You will serve as a primary technical authority across multiple programs, establishing engineering best practices, defining long-term technical roadmaps, and mentoring the next generation of engineers to scale the company's technical capabilities

Position Responsibilities:

• Architect C&DH subsystem architectures that drive system-level design decisions and ensure alignment with mission objectives, constraints, and fault management requirements

• Lead the selection and trade analysis of avionics architectures to balance mission requirements with performance, power, mass, and cost

• Drive the definition of requirements, interface control documents, and verification activities

• Direct high-fidelity analyses for data budgets, signal integrity, clock drift, jitter, and EMI/EMC compatibility to guarantee design margins and reliability

• Own vendor selection and trade studies, producing make/buy recommendations that balance technical risk, schedule, cost, and long-term lifecycle support

• Lead the identification and resolution of complex technical issues related to avionics and electrical hardware throughout the design, integration, and testing phases

• Collaborate on Fault Detection, Isolation, and Recovery (FDIR) strategies, ensuring architectures are resilient and providing technical expertise for mission operations and system health assessment

• Mentor junior and mid-level engineers to foster technical excellence and scale the group's engineering capabilities

• Other duties as assigned

Basic Qualifications (Required Skills/Experience):

• Bachelor’s degree in Electrical, Computer, Aerospace, or a related discipline and 9 or more years' related work experience or an equivalent combination of technical education and experience

• 9+ years of experience with spacecraft communication protocols such as Space Wire, Ethernet, RS-422/485, LVDS

• 7+ years of experience in the design, analysis, and integration of spacecraft electrical hardware or complex avionics systems

• 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

Preferred Qualifications (Desired Skills/Experience):

• Level 5: 14 or more years' related work experience or an equivalent combination of technical education and experience

• Experience as a Responsible Engineering Authority (REA) or Lead Engineer on complex space programs

• Deep familiarity with industry standards and DoD/government cybersecurity implementation for…