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Science Payload Responsible Engineer/Scientist

Relativity Space is building autonomous, rapidly produced rockets to expand access to space. The Interplanetary Sciences Program aims to make planetary exploration faster and more affordable. We are seeking a driven Science Payload Responsible Engineer/Scientist to lead delivery, integration, and operations support for a science instrument suite — owning instrument performance from build through on-orbit operations and coordinating with partners to achieve mission science objectives.

Skills

  • Experience delivering spacecraft science payloads across multiple phases (formulation, build, test, integration, ops)
  • Ability to translate scientific objectives into engineering requirements and trade decisions
  • Familiarity with instrument constraints: mass, power, thermal, data rate, and radiation considerations
  • Strong systems engineering and integration experience with environmental test campaigns
  • Excellent written and verbal communication and stakeholder coordination skills
  • Comfort making decisions under uncertainty and owning outcomes

Responsibilities

  • Serve as the responsible engineer for one or more science instruments, owning technical and programmatic outcomes from build through operations
  • Coordinate with instrument providers, test facilities, and spacecraft/integration teams to ensure timely delivery and compatibility
  • Manage environmental testing, verification, and validation activities to demonstrate flight readiness
  • Drive risk-based decisions, perform tradeoffs, and document rationale to balance science performance with system constraints
  • Define and verify instrument requirements, interfaces (mechanical, electrical, thermal, data), and operational procedures
  • Support commissioning, on-orbit operations, and science data acquisition including shift work and on-call availability during critical phases
  • Communicate status, risks, and mitigations clearly to stakeholders across engineering, mission, and science teams

Education

  • Master's degree in planetary science, engineering, physics, or a related technical discipline
  • Demonstrated research experience in science (e.g., planetary science, astrophysics, or related fields)
  • Practical experience working with spacecraft payload projects through multiple development phases

Benefits

  • Competitive salary and equity
  • Generous PTO and sick leave policy
  • Parental leave
  • Annual learning and development stipend
  • Medical, dental, and vision benefits (typical full-time package)
  • Opportunities for professional growth in a fast-moving aerospace startup environment
To read the complete job description, please click on the ‘Apply’ button
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Average salary estimate

$178500 / YEARLY (est.)
min
max
$150000K
$207000K

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We are building the future of aerospace. A rocket company at the core, Relativity Space is on a mission to become the next great commercial launch company. Terran R, our medium-to-heavy lift reusable launch vehicle, will reliably deliver payloads...

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DEPARTMENTS
SENIORITY LEVEL REQUIREMENT
TEAM SIZE
SALARY RANGE
$150,000/yr - $207,000/yr
EMPLOYMENT TYPE
Full-time, onsite
DATE POSTED
March 21, 2026
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