Job description: The position covers all topics related to embedded software development, low-level communication protocols, and system optimization. You’ll be responsible for implementing and improving software solutions, optimizing communication between components, and ensuring system stability. Your work will involve network communication, protocol implementation, and performance tuning to guarantee a high level of reliability for HyLight systems.

The mission : You’ll work closely with the tech team to develop and enhance embedded systems, focusing on networking, protocol implementation, and performance improvements. This is a hands-on role where you will take full ownership of software architecture and development, ensuring seamless integration of all communication systems. The HyLight team is expanding with new challenges, including steerable drones, advanced networking solutions, and mission-critical software improvements.

Personal note from Josef (CTO): As a Software Developer at HyLight, your expertise in low-level programming and networking will be crucial for our technical advancements. You’ll be responsible for designing and implementing efficient communication protocols, optimizing system performance, and ensuring robustness. If you enjoy working on drivers, network protocols, and system-level programming, this is the perfect opportunity. Our team is still small (17 people), meaning you will have a real impact on the company’s growth and innovation!

Profile required:

Technical skills required :

• Engineering background or equivalent, with a passion for system programming.

• C++ and C (at least 2 years of experience).

• Experience working with low-level communication protocols (CAN, UART, SPI, I2C, RS485) at the processor register level.

• Experience in network programming and system communication.

• Strong understanding of Linux system internals, including driver development.

• Hands-on experience with performance optimization and debugging tools.

Preferred Skills:

• Experience working with real-time operating systems (RTOS).

• Knowledge of cybersecurity in embedded systems.

• Experience with distributed systems and cloud integration is a plus.

• Ability to analyze and optimize software for efficiency and reliability.

• Strong problem-solving skills and creativity in tackling technical challenges.

Soft Skills:

• Strong analytical and problem-solving mindset.

• Ability to propose and implement innovative software solutions.

• Organized, autonomous, and proactive in managing projects.

• Effective communicator with strong teamwork abilities.

Don’t have all these skills? Apply anyway! We highly value the ability to learn and grow within the company. Our team is committed to mentoring and developing future leaders at HyLight.

Conditions : Start of contract as soon as possible, remuneration based on profile (flexible – if in doubt, apply!). This position will evolve with increasing responsibilities and collaboration with the entire Technical and Regulatory team.

Advantages:

• Become associate and have shares of HyLight

• Reimbursement of 100% of the Navigo pass (if needed to come to the office) or 800€/year in case of sustainable travel to the workplace

• Bike loan for home-to-work commutes,

• Lunch 100% covered.

• Offsite trips every 6 months with the whole team.

• An excellent working atmosphere: an international environment, team events, superb offices on the Brétigny sur Orge air base.

Workplace: Brétigny-sur-Orge, RER C.

Interview procedure

• Introductory telephone call (20 min)

• Video meeting with our CTO Josef (40 min)

• Case study: technical test

• On-site meeting with the team (40 min)

HyLight, who are we?

HyLight’s ambition is to make our societies resilient to the effects of climate change by working on the crucial observation and inspection stage for a better understanding of our world.

HyLight is developing a solution for easily inspecting large areas. Our HyLighters are capable of collecting a wide range of data over hundreds of kilometers without emitting greenhouse gases.

Our activities include :

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

• Inspecting power lines to prevent blackouts and forest fires.

We aim to inspect over 5 million kilometers of European energy infrastructure per year by 2030.

In 2 and a half years, we have :

• Developed 8 iterations of our dirigible drones.

• Flown over 150 hours.

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

• Joined the world’s best accelerator program, Y Combinator.

• Raised over 4 million euros.