Vast

Systems Engineer, Spacecraft Design & Simulation

Vast · Long Beach, California, United States

Posted about 3 months ago · $112,340 - $159,468

or apply directly on Vast's site. We never take the application ourselves.

Is this posting real?

This role has been open
81 days
Vast's roles stay open a median of 81 days
Reposted
No
Salary listed
Yes
35% of Vast's roles list one
Ghost-job risk at Vast
high
199 stale, 5 reposted of 202 open
Hiring momentum
259 roles opened in the last 90 days
↑ up vs. the prior 90 days
Last confirmed on the employer's board
2026-10-23

Measured from postings appearing on and disappearing from Vast's own greenhouse board since 2026-08-03. Full hiring picture for Vast.

About this role

The Systems Engineer, Spacecraft Design & Simulation at Vast will be responsible for owning and evolving the spacecraft simulation toolchain, which is crucial for the company's mission factory. This role involves defining governing equations, conducting design trades, maintaining a rigorous validation suite, and ensuring that the toolchain supports rapid iterations as customer requirements evolve. The engineer will collaborate across disciplines to ensure accurate modeling and validation of spacecraft systems.

Our read on this posting4.0out of 5
benefits
5/5
freshness
1/5
career value
4/5
role clarity
5/5
pay transparency
5/5

Scored from the posting itself — how clearly the role is described, how much it says about pay and benefits, and how recently it was listed. Not a judgement of Vast as an employer.

What you need

  • Bachelor's degree in Aerospace Engineering, Mechanical Engineering, Electrical Engineering, Physics, or a related technical discipline
  • 4+ years of spacecraft systems engineering or mission analysis experience
  • Broad subsystem knowledge in power, thermal, ADCS, and orbital mechanics
  • Strong analytical skills for setting up hand calculations
  • Rigorous validation mindset
  • Comfortable with AI-assisted development workflows

Nice to have

  • Able to obtain a security clearance
  • Experience building or maintaining spacecraft simulation tools
  • Familiarity with orbital mechanics
  • Familiarity with CMG dynamics and quaternion attitude propagation
  • Experience with data visualization tools

What you get

  • Medical, dental, and vision coverage for employees and dependents
  • Generous paid time off; up to 20+ days of vacation for exempt staff
  • Paid parental leave
  • Short and long-term disability insurance
  • Life insurance
  • Access to a 401(k) retirement plan

Worth weighing

  • No specific mention of the technology stack used in the simulation toolchain
  • The role emphasizes systems engineering over software engineering, which may limit software development exposure
  • The position requires a strong validation mindset, which may be challenging if the candidate prefers less rigorous testing environments

Summarised from Vast's posting. Read the full original.

Listed by Vast on their greenhouse job board, last confirmed open on 2026-10-23. PitchMeAI is not the employer.

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