Assembly Technician, Sion

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.

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

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

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.

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