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Open nowPosted 9 hours ago

Assembly, Integration & Testing (AIT) Intern

HyLight21 open roles

Where
Paris, France
Work mode
On site
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Your applicationOpen nowAssembly, Integration & Testing (AIT) InternHyLight · Paris, France

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The clock on this job

Early applications get read.

13.9% of postings close within 7 days. Measured by our own scanner across the market. HyLight postings stay open a median of 13 days.

Share of postings closed within
  1. 2.2%1 day
  2. 4.7%3 days
  3. 13.9%7 days
  4. 22.4%14 days
  5. 38.1%30 days
  6. 59.0%60 days
This job: posted 9 hours ago

HyLight median: 13 days open

The posting

About HyLight

Power lines, gas pipelines and railways are still inspected the way they were 50 years ago: by helicopter. Expensive, noisy, and up to a tonne of CO₂ per flight hour.

We built the alternative. The HyLighter is a 12-metre autonomous airship running on hydrogen. It flies for up to 10 hours, almost silently, and spots a 1 mm defect from 25 metres up.

But the airship is only half the story. Every flight brings back massive amounts of LiDAR, imagery and methane data, and that’s where the value is. Our AI turns it into what operators act on: 50+ types of defects detected automatically, and leaks pinpointed across their network.

It’s not a prototype. HyLighters already fly missions for France’s largest energy and rail operators and have flown over the Palace of Versailles. Backed by Y Combinator, we just raised €13M to go from 4 airships to 15.

Working at HyLight

We design, build and fly every HyLighter, and turn its data into insight, all under one roof on a former airbase. Which means:

  • You own it all the way. At a big aerospace company, you’d own a small piece of one subsystem. Here, you design it, test it, stand on the airfield when it flies, and see the client act on the data it brings back.
  • Weeks, not years. Ideas go from whiteboard to flight test in weeks.
  • Responsibility from day one. The founders’ average age is 27. Nobody here waits for permission.

Job Summary

As we ramp up production to build our next batch of HyLighters, the Assembly, Integration & Testing (AIT) Intern is the critical link between design engineering and real-world flight hardware.

Reporting directly to the Head of Production and collaborating closely with our mechanical and embedded systems engineers, you will work hands-on in the HyLight Base. Your core mission is to assemble, wire, integrate, and validate the mechanical, electrical, and avionics subassemblies of our airships, taking them from bare structural components to fully integrated, flight-ready ariship.

Duration: 4–6 months

Key Deliverables & Responsibilities

  • Mechanical & Structural Assembly: Assemble primary structures, gondolas, envelope attachment points using hand tools, torque wrenches, and assembly jigs in accordance with technical drawings. Integrate mechanical hardware, enclosures, and payload mountings, ensuring clean fit, finish, and structural integrity. Wiring, Soldering & Harness Integration: Build, route, and secure custom wiring harnesses, power distribution lines, and signal cables across the airship frame. Perform precision soldering, connector pinning/crimping, and board-level component integration based on electrical schematics. Avionics & Subsystem Integration: Integrate flight computers, telemetry systems, communication radios, motor controllers, and sensor payloads into airframe bays. Rapidly prototype custom mounting brackets, cable guides, and mechanical interfaces using 3D printers and workshop tools. Bench Testing & Electrical Checkouts: Perform baseline electrical verification: continuity checks, insulation resistance tests, and voltage rail measurements before first power-on. Validate digital communication buses (CAN, UART, I2C, SPI, Ethernet) across connected hardware nodes. Factory Acceptance Testing (FAT) & Flightline Support: Execute end-of-line functional acceptance tests (FAT) to qualify newly integrated airships before handover to Flight Operations. Support the operations and flight test crew during airfield ground runs and flight checks at Base 217. Troubleshooting: Diagnose and resolve mechanical interferences, electrical faults, and assembly bottlenecks on the spot. Provide direct feedback to the R&D and design teams to drive Design for Manufacturing & Assembly improvements.

Ideal Profile & Qualifications

Academic Background: Currently enrolled in a License, BTS, or BUT degree program in Mechatronics, Mechanical, Electrical, or Aerospace Engineering.

  • Practical & Technical Skills: Proven hands-on aptitude: skilled with workshop hand tools, crimping, wire stripping, and electronic soldering. Ability to read and interpret mechanical 2D/3D CAD models (SolidWorks, CATIA, Fusion 360) and electrical schematics. Experience with basic lab test tools (multimeters, bench power supplies, oscilloscopes). Familiarity with 3D printing (FDM/SLA) and rapid prototyping techniques. Maker Spirit & Mindset (Big Plus): Passion for building: experience building/flying FPV drones, RC planes, robotics club projects, or personal hardware/electronics DIY builds. Languages: Professional French and working English (both written and spoken).

What We Offer:

  • Real responsibility and mentorship.
  • Potential to become a shareholder in HyLight upon hiring.
  • 100% reimbursement of public transport pass (Navigo) or €800/year for sustainable commuting.
  • Bike provided for commuting.
  • Free lunch.
  • Bi-annual offsite trips with the whole team.

Location

Base 217, Brétigny-sur-Orge, accessible via RER C

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