AboutHyLight:

HyLight’s mission is to help society become more resilient to climate change by improving the observation and inspection of infrastructure.

We build HyLighters, airships that collect data across vast distances with zero emissions.

Our activities include:

• Detecting methane leaks from gas infrastructures (4% of global GHG emissions)

• Inspecting power lines to prevent outages and wildfires

By 2030, we aim to become the global leader in aerial monitoring.

In just 3 years, we have pushed the realm of possibilities: as we have:

• Developed 8 iterations of the HyLighter

• Logged over 200 flight hours

• Secured our first inspection contracts with Europe’s largest infrastructure operators

• Joined the world’s top startup accelerator, Y Combinator

• Raised €6 millions

HyLight is aiming for a diverse and included team, if your profile doesn’t fit all the description but you can bring a diverse point of view, push it forward, it will be highly appreciated.

We’re well-funded and backed by top investors, providing the resources you wish you had when building your own business. We don’t care about traditional roles or titles—just that you’re smart, proactive, and bring the same founder-level ownership and drive to help us build something massive.

Job Summary:

You’ll be part of the development of our HyLighter, working at the intersection of electronics, embedded programming, and hardware integration. This is a 360° hands-on internship with strong growth potential and direct impact on our product.

The Mission:

Under the guidance of the mechatronics engineer, you will:

• Develop and integrate new embedded systems into the HyLighter

• Enhance the robustness of current electronics and embedded systems

• Participate in the system architecture and technical studies

• Be at the crusade of software and hardware development

• Learn about the engineering decisions taken to face new developments: new systems to design, new steerable drones, new ground facilities, and many others.

**Personal Note from Josef (CTO):
**This is a cross-functional position that touches on everything to do with hardware development. It’s likely to have a strong impact on the development of HyLight. We’re looking for someone who can quickly take on responsibility, to increase HyLighter’s reliability, and be at the forefront of all new improvement topics. If you like to spend your days programming microcontrollers, improving electronics, designing PCBs and are adept at exploring diverse areas and tasks, you’re the right person. The team is still on a human scale (17 people) and this is a unique opportunity to make a big impact!

Education: Engineering degree or equivalent with specialization in Embedded systems

The following list of skills is exhaustive, while you may not perfectly fit with the profile, we highly value personal growth and development. We see our interns as potential future team leads at HyLight.

Technical Skills:

This is an exhaustive list of sought after skills, if you have

• Microcontrollers: ESP32, Atmega328

• Communication Protocols: UART, CAN, I2C, PWM, SPI, RS485

• Other boards: Raspberry Pi

• Programming languages: C/C++, Python

• Electronics: PCB design, power electronics, electronic system sizing

Soft Skills:

• Autonomous with hands-on project

• Interest in the drone industry

• Curious, eager to learn, enjoy building and creating

• Languages: English & French (preferably)

Bonus Qualities:

• Strong analytical and synthesizing mindset

• Proactive in proposing innovative technological building blocks

• Capable of estimating and communicating progress, meeting development timelines while anticipating challenges

• Prior personal or academic projects (link them in your CV!)

What We Offer:

• Shares of HyLight & Compensation between €45k-65k

• 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

• Excellent work environment: international team, team events, beautiful offices on a former airbase

Why You Should Join:

• Founder Mentality: We value extreme ownership and want people who think like founders—fast decision makers, natural problem solvers, and executers.

• Ground Floor Opportunity: You’ll be helping to shape and grow a revolutionary company with the resources to back it.

• Impact & Speed: Work in a fast-paced environment where your contributions will have immediate, tangible effects on the company’s success.

Interview Process:

• Introductory phone call (20 min)

• Video interview with our CTO Josef (40 min)

• A 1 hour technical case study followed by a debrief with team members

• Reference calls

• On-site meeting with the team (1h)

Location:

• Office : Base 217, Brétigny-sur-Orge, accessible via RER C.

• Lab and Warehouse access

• You’ll work side-by-side with experts in embedded, aerospace, and hydrogen propulsion systems—where your impact matters from day one.