Frontend Engineer - C2 Core
About the job
- A B.S. or M.Sc. degree in Computer Science, Software Engineering, or a related field.
- At least 5-6 years of experience shipping production-grade web applications with complex data visualization.
- Deep understanding of complex state management and real-time data flow.
- Experience with geospatial mapping libraries such as Mapbox, Leaflet, or Cesium, or rendering APIs such as WebGL or Canvas.
- Familiarity with modern frameworks such as React or Vue.
- Ability to design interfaces for high-stress environments where operators cannot afford distractions or confusing error states.
- Willingness to take full ownership of the frontend architecture.
- Ability to thrive in a fast-paced, multidisciplinary startup environment.
- Build interactive maps and 2D/3D geospatial overlays displaying real-time robot telemetry, sensor data, and mission routes.
- Develop a low-latency, resilient video player interface capable of handling multiple simultaneous streams without freezing the main user interface thread.
- Create interactive tools for operators to draw waypoints, set mission parameters, and issue instant commands to the robot fleet.
- Design a state management system capable of processing high-frequency data from the backend bus without causing user-interface jitter or memory leaks.
- Work closely with user-experience and user-interface designers, backend engineers, and mission-planning algorithm designers to refine workflows and minimize operator clicks.
- Ensure the user interface maintains strict performance benchmarks, including consistent 60 frames per second rendering during high-frequency map updates.
- Previous experience in defense, aerospace, fintech, or other high-reliability domains where real-time data rendering is critical.
About the company
Harmattan AI builds vertically integrated autonomous defense systems for NATO and allied forces. Its products include layered air defence, coordinated ISR and strike UAVs, electronic-warfare tools, and command-and-control platforms, all powered by a software-defined autonomy stack. The systems are designed to operate together, with autonomous decision-making, sensor fusion, and mission execution through its C2 framework. The company differentiates itself through large-scale industrial manufacturing, secured Programs of Record with European and UK defense ministries, and a strategic partnership with Dassault Aviation to embed Harmattan’s controlled autonomy into combat-air systems such as Rafale F5 and UCAS. The goal is to provide trusted, scalable autonomous solutions for defense missions, expanding globally and embedding autonomy into partner platforms to strengthen allied capabilities.
Company Size
201-500
Company Stage
Series B
Total Funding
$242M
Headquarters
Paris, France
Founded
2024
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Simplify's Take
What believers are saying
- July 2026 NAMIB testing linked a drone sensor to Rafale targeting in flight.
- June 2026 France ordered 5,000 Sonora ISR drones after a prior 1,000-unit tranche.
- September 2026 Series B raised $200 million at $1.4 billion, funding global expansion.
What critics are saying
- Defence procurement concentration in France and UK ties revenue to two ministries.
- Harmattan claims 10,000 drones monthly, but public production audits remain absent.
- A high-profile Rafale or NATO autonomy failure could freeze deployment and kill trust.
What makes Harmattan AI unique
- Dassault embeds Harmattan autonomy into Rafale F5 and UCAS programs.
- Harmattan ships ISR, strike, EW, and C2 systems from one software stack.
- France and UK Programs of Record validate procurement traction against European peers.
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Benefits
- Health Insurance
- Dental Insurance
- Vision Insurance
- Unlimited Paid Time Off
- Flexible Work Hours
- Remote Work Options
- Paid Vacation
- 401(k) Retirement Plan
- Company Equity
- Stock Options
- Wellness Program
- Mental Health Support