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Spacecraft Engineer - Water Transport & ISRU (Equity / Early Growth Stage)

🌐 Remote💼 Full-time🗓 2026-06-24

Core

Designing and building water transport spacecraft for LEO, cislunar space, and delivery to Mars and lunar outposts, with long-term focus on ISRU operations at distant destinations like Ganymede, Europa, and Enceladus.

Role type

Spacecraft Engineer (Water Transport & ISRU)

Builds

Water transport spacecraft for resource collection and delivery; nuclear-powered spacecraft and lunar surface nuclear systems.

Domain

Space exploration, space resources, nuclear propulsion, orbital mechanics

Deliverable

production ML models | product features

Required skills

Aerospace engineering, mechanical engineering, propulsion engineering, nuclear engineering, electrical engineering, power systems engineering, software engineering, simulation, AI/ML, mission design, orbital analysis

Preferred skills

Physics-informed modeling, video/imagery engineering

Technologies

AI/ML tools, physics-informed simulation tools

Responsibilities

Design spacecraft for water transport and ISRU operations; develop nuclear propulsion and power systems; conduct mission design and orbital analysis; build simulation and AI/ML tools.

Seniority

Early Growth Stage, hands-on IC

Rewrite
## About the Role We're scaling our space infrastructure company, actively hiring mission-driven builders for equity-only roles with rapid growth ahead. After 5 years of development, we have one mature spacecraft design (~40,000 engineering hours and millions in equivalent value) plus four additional designs in early stages. We have a committed core team of 13 and are now in aggressive expansion mode as we push multiple NASA and other grant applications, investor conversations, and asset stabilization to fuel growth. ## Mission Near-term focus: Water transport spacecraft for LEO, cislunar space, and delivery to Mars and lunar outposts, collecting and moving ice/water resources from space. Longer-term: ISRU operations at distant destinations including the subsurface oceans of Ganymede, Europa, and Enceladus, plus inspiring imagery of those worlds. Parallel nuclear programs: Earth-based nuclear electric generation, nuclear-powered spacecraft, and lunar surface nuclear systems. We're also exploring AI + physics-informed simulation tools to accelerate development as we scale. We are hiring across multiple disciplines and plan to grow. ## Skill Sets - Aerospace / Mechanical / Propulsion Engineers - Nuclear engineers & systems specialists - Electrical / Power systems engineers - Software, simulation & AI/ML engineers (physics-informed modeling a big plus) - Mission designers, orbital analysts - Video / imagery engineers ## Reality Check - We are currently all equity / shares only (including the founder). - No salaries at this stage. - Cash is tight while we close grants and funding, but we are moving fast to change that. - This is high-ownership startup work with real upside. - If you need immediate stable salary, this may not be the right fit right now. - If you want meaningful equity in a rapidly growing space resources company, let's talk. ## What You Get - Significant equity stake - Direct impact on foundational technology for space settlement - The chance to help build a much larger team and capability ## Location South Texas base but strong remote contributors welcome. (U.S. time zones + ITAR compliance required). ## Application Instructions Apply here on WellFound: - Your background (2–3 sentences) - Which technical area excites you most and why - Your availability (part-time/contract also considered) to start ## About the Company We're building critical infrastructure for humanity's future in space. If you want to be part of a rapidly growing effort instead of just another job, reach out. #SpaceTech #NewSpace #ISRU #Cislunar #NuclearPropulsion #SpaceResources #Europa #Enceladus #Mars
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