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Boeing

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

USA - El Segundo, CA

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hirly's read of this role

Seniority
Mid level
Stated salary
$98,600 – $145,000 per year
Country
US
Work mode
On-site / unstated
First seen by hirly
3 Oct 2026

Derived automatically from the posting. Upload your resume above to see how the role scores against it.

the posting

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

Company:

Millennium Space Systems

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 Spacecraft Command and Data Handling (C&DH) Engineer, you will be responsible for the selection and management of electrical hardware and avionics systems critical to the operation of Millennium’s space vehicles. This role involves overseeing electrical interfaces through netlist management, driving vehicle architecture design to meet system requirements, and performing C&DH related analyses (data budget, signal integrity, vehicle I/O allocation analyses). 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 2-3.

Position Responsibilities:

Develop C&DH subsystem architectures for Millennium’s space vehicle, driving system level design decisions and maintaining alignment with mission objectives and constraints

Select avionics and onboard processing units that meet flight software (FSW) and data handling needs while balancing performance, power, mass, and cost

Perform requirements definition and flow down, develop interface requirements, and manage verification activities

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

Create and maintain detailed netlists to define the vehicle’s electrical connectivity

Perform data budget analysis and guarantee positive margins for telemetry, command, and onboard processing streams throughout the mission lifecycle

Conduct signal integrity (SI) studies to inform transmission line designs

Validate C&DH architectures against program fault management requirements, incorporating redundancy, watchdogs, and error detection mechanisms

Select and analyze oscillators and clock distribution schemes to meet timing requirements

Perform clock drift, jitter, and accuracy analyses

Analyze serial and analog interfaces for compatibility, signal levels, grounding, and EMI considerations

Own vendor selection and trade study activities; produce make/buy recommendations that balance cost, schedule, technical risk, and lifecycle support

Collaborate with Flight Software, Harness, Electrical Ground Support Equipment and other multidisciplinary subsystem teams providing C&DH expertise as needed

Provide technical, cost, and schedule status updates to program leads and functional managers

Present C&DH designs, trade-offs, and risk mitigations at SRR, PDR, CDR, and other customer reviews

Other duties as assigned

Basic Qualifications (Required Skills/Experience):

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

Detailed knowledge of electrical hardware systems

2+ years of related work experience

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):

Familiarity with industry standards for avionics and electrical hardware in aerospace applications

Methodical design, testing, and troubleshooting capabilities

Must be versatile and able to perform and manage multiple tasks concurrently

Outstanding communication and presentation skills

At least 2 years as an Responsible Engineering Authority, Project Lead, Control Account Manager, or equivalent

Have familiarity with government and DoD cybersecurity standards and implementation

Conflict of Interest:

Successful candidates for this job must satisfy the Company’s Conflict of Interest (COI) assessment process.

Drug Free Workplace:

Millennium Space Systems, a Boeing Company, is a Drug Free Workplace (DFW) where post offer applicants and employees are subject to testing for marijuana, cocaine, opioids, amphetamines, PCP, and alcohol when criteria is met as outlined in our policies.

Total Rewards:

At Millennium Space Systems, a Boeing Company, we strive to deliver a Total Rewards package that will attract, engage and retain the top talent. Elements of the Total Rewards package include competitive base pay and variable compensation opportunities.

Millennium Space Systems also provides eligible employees with an opportunity to enroll in a variety of benefit programs, generally including health insurance, flexible spending accounts, health savings accounts, retirement savings plans, life and disability insurance programs, and a number of programs that provide for both paid and unpaid time away from work.

The specific programs and options available to any given employee may vary depending on eligibility factors such as geographic location, date of hire, and the applicability of collective bargaining agreements.

Pay is based upon candidate experience and qualifications, as well as market and business considerations.

Summary pay range :

Level 2: $98,600 - $145,000

Level 3: $119,850 - $176,250

Millennium is DDTC-registered, ITAR-compliant Company. This position is located at a facility that requires special access. 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. We encourage all interested candidates to apply for any open position for which they feel they are qualified.

Language Requirements:

Not Applicable

Education:

Bachelor's Degree or Equivalent

Relocation:

Relocation assistance is not a negotiable benefit for this position.

Export Control Requirement:

This position must meet U.S. export control compliance requirements. To meet U.S. export control compliance requirements, a “U.S. Person” as defined by 22 C.F.R. §120.62 is required. “U.S. Person” includes U.S. Citizen, U.S. National, lawful permanent resident, refugee, or asylee.

Safety Sensitive:

This is not a Safety Sensitive Position.

Security Clearance:

This position requires the ability to obtain a U.S. Security Clearance for which the U.S. Government requires U.S. Citizenship. An interim and/or final U.S. Secret Clearance Post-Start is required.

Visa Sponsorship:

Employer will not sponsor applicants for employment visa status.

Contingent Upon Award Program

This position is not contingent upon program award

Shift:

Shift 1 (United States of America)

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Boeing is an Equal Opportunity Employer. Employment decisions are made without regard to race, color, religion, national origin, gender, sexual orientation, gender identity, age, physical or mental disability, genetic factors, military/veteran status or other characteristics protected by law.

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