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 RoleAs 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.
ResponsibilitiesApp 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.
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.
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.
Skills Required
- Master's degree in Software Engineering or related field
- 3+ years of software development experience with 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 drone environments
- Knowledge of MAVLink, PX4, or ground control systems
- English proficiency for reading and writing technical documentation
- Versatile, autonomous, and eager to learn in fast-evolving environments
Harmattan AI Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Harmattan AI and has not been reviewed or approved by Harmattan AI.
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Fair & Transparent Compensation — Pay ranges are publicly shown for multiple U.S. roles (e.g., $140k–$200k base) and appear broadly in line with late‑stage startup/defense‑tech expectations based on the postings cited.
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Equity Value & Accessibility — Equity is repeatedly referenced in several job postings as part of total compensation, which can increase upside potential at a recently funded, high‑valuation company.
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Strong & Reliable Incentives — Sign‑on bonuses are explicitly mentioned in a hiring post for candidates who can start quickly, indicating the use of cash incentives in at least some hiring situations.
Harmattan AI Insights
What We Do
Harmattan AI is rising as a next-generation defense prime, building the future of autonomous warfare. We leverage AI-driven autonomy, real-time intelligence, and conflict-ready production to deliver attritable systems and autonomous mission management software. Designed for the real-world needs of warfighters, our solutions enable faster deployment, sharper decision-making, and battlefield dominance.
