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. H55 exists to accelerate this transition by building the certification-grade energy platform that electric aviation needs to scale, delivering energy storage systems that are predictable, provably safe, and trusted by authorities, insurers, and OEMs. Because in aviation, innovation only matters when it can fly.

At H55, you will work with a forward-looking team shaping the future of air transportation. Our team brings together experienced engineers, entrepreneurs, and industry experts who combine creativity, innovation, and strong technical expertise.

We believe that diverse perspectives lead to better engineering and stronger teams, and we are committed to building an inclusive workplace.

Your Role

As part of the production team, you will report initially to the Production manager.

Main responsibilities:

• Assemble mechanical and electronic parts.
• Inspect and test manufactured products & incoming goods.
• Track manufacturing and inspection steps in the ERP.
• Work according to internal documentation.
• Maintain complete traceability in manufacturing.
• Report unexpected events & findings and promote safety of flight.
• Perform product Final Inspection.
• Comply with internal safety guidelines.
• Participate to the scale-up and growth of production activities (e.g. collaborative edition of Technical Instructions).

Your Profile

• Experience in a regulated environment is appreciated, but not mandatory
• Background in mechanics or electronics, a mix of both is a plus
• Comfortable following internal procedures while remaining open to change and continuous improvement
• Electrical / wiring knowledge is a plus
• Familiarity with machine, process, or maintenance environments is a plus
• Able to manage multiple tasks and adapt priorities as needed
• Genuine interest in working in the innovative field of electrical aviation
• Willingness to occasionally work at another company site if the need arises
• Good level of English; French is an asset

What We Offer

• The opportunity to work on cutting-edge electric aviation technology with real-world impact
• A collaborative, international, and purpose-driven team
• Opportunities to grow into technical or leadership roles
• A flexible and supportive work environment
• An exceptional work location in Sion, Valais, in the heart of the Swiss Alps

You will have a direct impact on our products and on how we design and build them, working closely with cross-functional teams in a fast-evolving environment.

We are building a team where diverse perspectives are essential to solving complex engineering challenges and delivering safe, certifiable systems. If you’re excited about this role but don’t tick every box, we encourage you to apply

Ready to help make electric aviation a certified reality? Let’s talk.

Additional Information

H55 is committed to building a diverse and inclusive workplace. We welcome applications from all qualified individuals regardless of nationality, gender, disability, religion, sexual orientation, or age. Employment decisions are based on skills, experience, and business needs.

We are committed to providing an inclusive recruitment process. If you require any accommodations during the application or interview process, please let us know.

By applying for this position, you agree that your personal data will be processed for recruitment purposes in accordance with our privacy policy. Your data will be handled confidentially and retained only as long as necessary for the recruitment process.