Electrical Wiring System Engineer

Expleo offers a unique range of integrated engineering, quality, and strategic consulting services for digital transformation. Against a backdrop of unprecedented technological acceleration, we are the trusted partner for innovative companies. We help them develop a competitive advantage and improve the daily lives of millions of people.

19,000 Employees
In 30 countries
To Belong To Expleo Switzerland Means

• Having a professional and human accompaniment in every assignment and a powerful support for your career.
• Undertaking training courses to develop your professional skills. To participate in special, dedicated events.
• To be part of a dynamic team

Based in Zurich, as an
EWIS Engineer
you will act as the primary technical authority for all Electrical Wiring Interconnection System (EWIS) activities across rotorcraft and fixed‑wing projects. The role combines hands‑on prototype development with system‑level design, certification, and cross‑disciplinary collaboration, allowing you to see ideas evolve from concept to flight‑ready hardware.

Responsibilities

• Define and manage EWIS requirements – create, maintain, and trace requirement documents throughout the product lifecycle.
• Architectural design – develop and continuously improve system‑level EWIS designs, schematics, and wiring diagrams.
• Prototype development – design, build, and test rapid prototypes, ensuring attention to detail and manufacturability.
• Certification & documentation –support all certification‑related documentation (DOA/DO‑A, AC ‑1, AMC 20‑23, ARP4754, etc.).
• HV‑DC expertise – specify and validate high‑voltage DC power distribution (≥ 1000 V, 300 A), addressing segregation, partial discharge, corona, arc‑fault detection, and health‑monitoring challenges.
• Harness design & optimization – design aerospace wiring harnesses, select connectors, manage BOMs, and oversee build sequences, fatigue analysis, and movement control in static and kinematic environments.
• Cross‑disciplinary collaboration – consult with avionics, mechanical, battery, motor‑drive, and manufacturing engineers to integrate EWIS into overall aircraft architectures.

Qualifications

• Education / Experience – Degree in Electrical Engineering, Physics, or related field or at least 15+ years of aerospace‑industry experience focused on electrical harness design and routing.
• Technical expertise –EWIS programs, deep knowledge of electrical systems, grounding/bonding, and interior systems.
• CAD & PLM – Strong CAD skills; basic knowledge of PDM/PLM environments, BOM creation, and manufacturing drawing specifications.
• Regulatory & certification –solid understanding of airworthiness requirements and authorities.
• Standards knowledge – Familiarity with AC43.13‑1B, ATA 20/100, S1000D, AC ‑1, AMC 20‑23, ARP4754, and aerospace electrical specifications.
• High‑voltage DC competence – Hands‑on experience with DC distribution > 1000 V/300 A, HV‑DC challenges (segregation, PD, corona, arc‑fault detection, health monitoring).
• Battery & power electronics – Working experience with lithium‑battery systems, motor drives, and high‑power electronics.
• Analytical mindset – Target‑oriented, strong problem‑solving abilities, comfortable in a fast‑paced start‑up environment.
• Languages – Fluent English required; German or additional language proficiency is a plus.

What Do I Need Before I Apply
Only candidates eligible to work in the EU/Switzerland will be considered. Our positions are accessible to people with disabilities.