Spacecraft Design Engineer

Apex Technology, Inc.•Los Angeles, CA

3d•$165,000 - $200,000•Hybrid

About The Position

Spacecraft represent the most pressing unmet need across the entire aerospace industry. As more launch vehicles come online and the cost to orbit decreases, more companies launching payloads to space continue to emerge. For the first time in history, this influx of payload companies combined with reduced launch costs has resulted in a massive increase in need for commercial spacecraft platforms, known as satellite buses. These buses hold the payloads of our customers and are flown on launch vehicles. Apex manufactures these satellite buses at scale using a combination of software, vertical integration, and hardware that is designed for manufacturing. Our spacecraft enable the future of society: ranging from earth observation to communications and more. We’d love for you to join us on our mission of providing humankind access to the galaxy beyond our planet. About the Role As a Spacecraft Design Engineer, you will be a foundational team member responsible for defining the future of Apex’s satellite platforms. You will operate at the design and development phase of the product lifecycle, shaping system architectures that balance performance, reliability, manufacturability, and cost for mass-manufactured satellite buses that enable access to Earth orbit and beyond. You will act as a platform-level integrator and architect—translating mission needs into clear system requirements, interfaces, and design trades that downstream teams can execute with confidence.

Requirements

U.S. Person status (ability to access export-controlled data)
Bachelor’s degree in Aerospace Engineering, Mechanical Engineering, Systems Engineering, or related field (Master’s preferred)
6+ years of experience working on complex hardware systems (spacecraft preferred)
Strong understanding of satellite subsystems and their interactions
Experience with system-level trade studies, requirements definition, and interface management
Strong analytical, communication, and documentation skills

Nice To Haves

Experience developing satellite platforms or spacecraft buses
Familiarity with requirements management or modeling tools (e.g., SysML, Jira, Excel)
Experience supporting early validation or risk-reduction testing
Familiarity with aerospace systems engineering best practices

Responsibilities

Define and evolve end-to-end satellite system architectures across multiple mission profiles
Perform system-level trade studies to optimize performance, reliability, cost, mass, and schedule
Analyze and allocate system requirements to spacecraft subsystems
Define and maintain system interfaces and interface control documents (ICDs)
Define, document, and manage platform-level requirements during early lifecycle phases
Maintain traceability between customer needs, system requirements, and subsystem designs
Identify technical risks early and develop mitigation strategies
Perform system-level analyses (margins, sensitivities, FMEA) to inform design decisions
Collaborate closely with propulsion, avionics, power, structures, thermal, software, and manufacturing teams
Translate mission concepts into executable platform designs
Support internal design reviews and customer technical discussions
Prepare designs for transition into integration, test, and qualification

Benefits

Receive equity in Apex, letting you benefit from the work you create
100% company-paid medical, dental, and vision for you and your dependents
$100k life insurance at no cost
15 days vacation, growing to 20+ days annually
10 paid holidays
Competitive 401(k) plan with generous matching - 100% match on first 3%, 50% on next 2%
8 weeks paid parental leave
Childcare reimbursement up to $350/day for work-related travel
Daily catered lunch
Unlimited snacks
Monthly office socials, pickleball tournaments, run club, and gatherings for you and your family
Your dream desk setup and all the tools you need to be your most productive self