C2 Software Engineer Harmattan AI · France · ·

Rustify; Paris; Hybrid; EUR 110,000 - 170,000; Full time

Job summary

Harmattan AI in Paris is seeking a Senior Software Engineer to join the C2 Core team. You will design and implement the gateway that ingests high-frequency telemetry and video streams from multiple robots, and build robust internal messaging pathways to connect the HMI with the robot fleet.

This role requires working on rugged, field-deployed systems with low latency and secure data handling. You will operate in a mission-critical environment focused on real-time telemetry, video streams, and

Responsibilities

• Robot-to-C2 Communications Gateway: Design and implement ingestion pipelines for high-frequency telemetry and video streams from multiple robots simultaneously.
• Internal Messaging & IPC: Build the inter-process communication (IPC) or local pub/sub systems to route sensor data, user commands, and mission plans between the HMI and the robot fleet.

Job description

# C2 Software EngineerHarmattan AI · France · Senior · OnsiteView & Apply## About Harmattan AIHarmattan 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 RoleWe are looking for a dedicated **Software Engineer** to join our **C2 Core team** in **Paris** to build the \"nervous system\" of our new tactical Command and Control (C2) application. You will enter a highly technical, mission-critical environment where low latency, fault tolerance, and secure data handling are paramount.You will be responsible for the core architecture that ensures real-time telemetry, heavy video streams, and mission commands flow seamlessly between our robot fleet and internal C2 components, such as the Common Operational Picture (COP) and Mission Planner. This system is designed to run on ruggedized, resource-constrained tactical PCs in the field, often under degraded network conditions.## Key Responsibilities:* **Robot-to-C2 Communications Gateway:** Design and implement ingestion pipelines for high-frequency telemetry and video streams from multiple robots simultaneously.* **Internal Messaging & IPC:** Build the inter-process communication (IPC) or local pub/sub systems to route sensor data, user commands, and mission plans between the HMI and the robot fleet.