Mechanical Engineer
Vacant since: 31.03.2026 | Number of jobs: 1 | 1950 Sion (VS) | 100% | Immediately | Permanent
About H55: As the technological spin‑off of Solar Impulse, the first electric airplane to fly around the world, the mission of H55 is to make aviation clean, safe, and affordable. The company’s strengths and competencies lie in developing propulsion and energy storage solutions which are modular, lightweight, and certifiable. H55 is cementing its position as a major enabler in the electric aviation market by having integrated and flown four electric airplanes.
In the frame of its product development (Electric Propulsion System and Modular Battery Pack), H55 is searching for a Mechanical Design Engineer to work on the different components of the system, and notably with a focus on its Battery Module.
You will be responsible for:
As a Mechanical Design Engineer at H55, your primary mission is to craft cutting‑edge products integral to our electric propulsion system. Your responsibilities will include:
Design lightweight, manufacturing‑optimized, and cost‑efficient products, with a focus on the Battery Module.
Ensure designs adhere to regulatory aerospace agency rules, with a strong focus on industry safety and performance standards.
Substantiate your designs with robust engineering practices and calculations.
Review drawings, schematics, bills of material, and other documentation necessary to manufacture, test, install, and commission products.
Define tests to guarantee the correlation and advancement of simulation models and technology de‑risking & validation.
Monitor and manage problem reports and change requests.
Provide essential support to product production by analyzing deviation requests among others.
Support suppliers by addressing technical questions under general design guidelines.
Your Profile
A university degree with 4–7 years of experience in designing and validating mechanical components and assemblies, particularly experience with plastics and/or composite materials.
Experience in mechanical design of Battery modules is a significant advantage.
Familiarity with Airworthiness Certification Specifications (e.g., EASA CS‑23 or FAA Part 23) and industry standards is an advantage (experience in another highly regulated domain is fine).
Proficiency in CAD programs like Autodesk Inventor.
Proven experience in FEA is appreciated, with mastery of Ansys bundle as an asset.
Knowledge of manufacturing processes with a focus on machining and plastic molding.
Hands‑on experience in prototyping, testing, and manufacturing.
A motivated self‑starter with a keen eye for organization and precision.
A strong commitment to quality.
Capability to work both independently and collaboratively in multidisciplinary teams.
Fluent in both written and spoken English and French.
This role may require rare travelling to our headquarters in Switzerland.
We offer a highly dynamic and multicultural environment where you can grow and learn by working on ambitious challenges to shape the future of electric aviation. We hope this role sounds exciting and could be your next step; if so, follow the steps to apply. We are looking forward to receiving your application.
Work location 1950 Sion (VS)
Workload 100%
Employment start Immediately
Employment duration Permanent
Qualification skilled
Work experience More than 3 years
Education Higher professional education and training, diploma or equivalent
English Orally: Basic knowledge; Written: None
French Orally: Very good knowledge; Written: None
By email hr@h55.ch
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