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Home / Software Engineer

Software Engineer

  • Full Time
  • Paris
  • QR code — scan to open this job listing on your phone

Harmattan-ai at a glance

harmattan.ai
  • Founded 2024

Harmattan-ai

About Us

Harmattan AI is a next-generation defense prime building autonomous and scalable defense systems. Following the close of a $200M Series B, valuing the company at $1.4 billion, we are expanding our teams and capabilities to deliver mission-critical systems to allied forces.

Our work is guided by clear values: building technologies with real-world impact, pursuing excellence in everything we do, setting ambitious goals, and taking on the hardest technical challenges. We operate in a demanding environment where rigor, ownership, and execution are expected.

About the Role

As a Software Engineer within the Ground Control Systems (GCS) team, you will play a central role in developing Harmattan AI’s new range of drone controllers — high-performance, Android-based control stations designed for professional UAV operations. You will adapt and extend the open-source QGroundControl platform (C++/Qt) to integrate seamlessly with our proprietary hardware, adding new features and ensuring reliability, performance, and scalability across missions.

Responsibilities

  • App Development: Design, develop, and optimize our QGroundControl-based application using C++ and Qt.

  • Hardware Integration: Adapt the app interface with physical controls (joysticks, buttons, switches, touchscreen) for a cohesive operator experience.

  • Feature Implementation: Translate user needs and mission requirements into new functionalities and UX/UI improvements.

  • Platform Maintenance: Port and maintain the app across Android versions, ensuring performance, compatibility, and security.

  • Deployment: Manage app updates and releases across our device fleet.

  • Collaboration: Work closely with embedded and electronics teams to ensure smooth hardware/software integration and with QA for field validation.

Candidate Requirements

  • Master’s degree in Software Engineering or related field.

  • 3+ years of experience in software development: C++ and Qt for desktop or embedded applications.

  • Experience with Android development (Java or C++/NDK).

  • Familiarity with UX/UI design principles and cross-platform app optimization.

  • Experience in robotics or drones environments is a strong plus.

  • Knowledge of MAVLink, PX4, or ground control systems is an advantage.

  • English proficiency (reading and writing technical documentation).

  • Versatile, autonomous, and eager to learn in a fast-evolving technical environment.

Location and Commitments

  • Contract Type: Permanent contract (CDI)

  • Work Schedule: Full-time

  • Availability: ASAP

  • Location: Paris

We look forward to hearing how you can help shape the future of autonomous defense systems at Harmattan AI.

To apply for this job please visit jobs.ashbyhq.com.

Terms used in this posting

CDI
Contrat à Durée Indéterminée — a French permanent, open-ended employment contract, the standard form of long-term employment in France.

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Paris is the capital and largest city of France, with an estimated city population of 2.04 million in an area of 105.4 km2 (40.7 sq mi), and a metropolitan population of 13.2 million as of January 2026. Located on the river Seine in the centre of the Île-de-France region, it is the largest metropolitan area and fourth-most populous city in the European Union (EU). Nicknamed the "City of Light", partly because of its role in the Age of Enlightenment, Paris has been one of the world's major centres of finance, diplomacy, commerce, culture, fashion, and gastronomy since the 17th century.

The Île-de-France is the most populous of the eighteen regions of France, with an official estimated population of 12,271,794 residents on 1 January 2023. Containing the capital city of France, Paris, it is located in the north-central part of the country and often called the Paris Region. Île-de-France is densely populated and retains a prime economic position on the national stage, and it covers

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