Senior Propulsion & Energy Systems Engineer

Senior Propulsion & Energy Systems Engineer

Location:

Full-time On-Site (CA)

Float is an early-stage aerospace company developing advanced airship systems for large-scale cargo applications. We are focused on solving hard aerospace problems and translating ambitious concepts into real, tested hardware. Our team is small, execution-driven, and building a new airship platform from first principles.

As Senior Propulsion & Energy Systems Engineer, you will own the design and development of critical energy and propulsion-adjacent systems for Float’s airship platform. This is a hands‑on, system‑level role focused on safety, reliability, manufacturability, and integration.

You will take responsibility for energy‑related subsystems from early architecture and trade studies through physical prototyping, testing, and iteration
, working closely with the Lead Aerospace Engineer and founding team.

• Design and develop energy and propulsion‑related subsystems for a large‑scale cargo airship
• Define system architectures that balance performance, safety, reliability, and manufacturability
• Lead trade studies and requirements definition for energy storage, distribution, and integration
• Drive design‑for‑manufacturing (DFM) decisions to support repeatable production
• Build and evaluate physical prototypes and proof‑of‑concept hardware
• Develop and execute system‑level test plans
  , validation procedures, and failure analyses
• Collaborate closely with structures, aerodynamics, avionics, and manufacturing teams to ensure clean system integration

• Degree in Aerospace, Mechanical, or related engineering field, or equivalent real‑world experience
• Strong background in propulsion, energy systems, pressure systems, or complex mechanical systems
• Proven experience taking systems from concept through prototype and test
• Solid understanding of safety‑critical design principles and system reliability
• Experience with CAD
  , system‑level modeling, and engineering trade studies
• Comfortable working in fast‑moving, early‑stage environments with evolving requirements
• Strong engineering judgment and bias toward hands‑on problem solving

• Experience with hydrogen or alternative energy systems
• Background in aerospace, automotive, or industrial energy systems
• Familiarity with certification‑aware or regulated design environments
• Hands‑on experience building and testing mechanical or energy‑related hardware
• Prior experience at an aerospace startup or skunk works‑style team

This is a rare opportunity to shape the core engineering DNA of a company redefining how cargo moves across the planet. You’ll take on meaningful responsibility early, build groundbreaking vehicles, and grow alongside a world‑class team pioneering the future of sustainable air mobility.

Mid‑Senior level

Full‑time

Engineering and Information Technology

Industries:
Airlines and Aviation

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