Software Engineer - Visualization

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 an Automation Software Engineer, you will play a key role in designing and developing the software that powers our automated testing and inspection platforms. Working within the R&D department, you will create robust, scalable automation tools that support both product development and manufacturing operations. Your primary focus will be software development for test automation, while also collaborating on mechanical and electrical integration aspects of test systems. Responsibilities * Test Automation Development – Design, implement, and maintain automated test and inspection software, primarily using Python. * Data Acquisition & Analysis – Build tools for real-time data collection, visualization, and analysis to improve product validation and process efficiency. * System Integration – Interface with sensors, cameras, motion controllers, and other hardware components to create fully automated testing workflows. * Test Fixture Collaboration – Work with mechanical and electrical engineers to design and integrate physical test fixtures when needed. * Cross-Team Collaboration – Partner with product development, manufacturing, and quality teams to deliver reliable and maintainable automation solutions. Candidate Requirements * MSc in Software, Electrical, Mechatronics, or related engineering field. * Top level Python programming skills, including experience with automation frameworks, hardware communication protocols and data processing. * Experience developing automated test systems, measurement setups, or manufacturing automation tools. * Familiarity with version control (Git) and structured software development practices. * Comfortable with CAD tools (SolidWorks, Onshape or similar). * Comfortable performing soldering, wiring, and small-scale electrical circuit work for test system integration. * Strong problem-solving skills and ability to design practical, robust engineering solutions. * Excellent communication skills and proven ability to collaborate across multidisciplinary teams. We look forward to hearing how you can help shape the future of autonomous defense systems at Harmattan AI.

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 We 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. 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. * Resource Optimisation: Ensure the backend runs efficiently on local tactical PCs, managing CPU and memory footprints to prevent interference with UI or planning algorithms. * Fault Tolerance: Architect state machines capable of handling the chaos of tactical environments, including frequent network drops and packet loss, without corrupting the Common Operational Picture. * Cross-Functional Collaboration: Partner with Mission Planning algorithm designers, HMI frontend developers, and UX designers to deliver a cohesive product . CANDIDATE REQUIREMENTS * Educational Background: B.S. or M.Sc. in Computer Science, Software Engineering, or a related field * Experience shipping production-grade applications with complex data visualization and real-time UI requirements.   Technical Skills: * Strong command of system-level languages such as C++, Rust, or Go. * Deep expertise in Real-Time Networking (UDP, TCP, WebRTC, gRPC, DDS, or custom binary protocols). * Expertise in Systems Architecture & IPC, specifically using bounded ring buffers or zero-copy shared memory for high-concurrency pipelines. * Proficiency in profiling and capping resource footprints using tools like perf or cgroups. * Soft Skills: * Ownership & Mission-Driven: A high degree of commitment to Harmattan AI’s mission and the ability to thrive in a fast-paced startup environment. * Communication: Ability to mediate technical trade-offs between hardware, algorithm, and frontend teams. We look forward to hearing how you can help shape the future of autonomous defense systems at Harmattan AI.

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 We are seeking a highly skilled Front-End Engineer to join our C2 Core team in Paris. In this role, you will be responsible for the operator's viewport into the battlefield, building the Human-Machine Interface (HMI) for our tactical Command and Control (C2) system. You will enter a context where cognitive load management is just as critical as software performance. The UI you build will run on tactical PCs in the field, requiring seamless real-time updates for the Common Operational Picture (COP), rendering multiple live video streams, and providing an intuitive interface for planning missions and commanding a fleet of robots. Responsibilities * COP Visualization: Build interactive maps and 2D/3D geospatial overlays displaying real-time robot telemetry, sensor data, and mission routes. * Real-Time Video Grid: Develop a low-latency, resilient video player interface capable of handling multiple simultaneous streams without freezing the main UI thread. * Mission Planning & Command: Create interactive tools for operators to draw waypoints, set mission parameters, and issue instant commands to the fleet. * Performance Architecture: Design a state management system capable of processing high-frequency data from the backend bus without causing UI jitter or memory leaks. * Collaborative Development: Work closely with UX/UI designers, backend engineers, and mission planning algorithm designers to refine workflows and ensure absolute minimum clicks for the operator. * Optimisation: Ensure the UI maintains strict performance benchmarks, such as consistent 60fps rendering, even during high-frequency map updates. CANDIDATE REQUIREMENTS * Educational Background: B.S. or M.Sc. in Computer Science, Software Engineering, or a related field. * Professional Experience: At least 5-6 years of experience shipping production-grade web applications with complex data visualisation. Technical Expertise: * Deep understanding of complex state management and real-time data flow. * Experience with geospatial mapping libraries (e.g., Mapbox, Leaflet, Cesium) or rendering APIs (WebGL, Canvas). * Familiarity with modern frameworks like React or Vue. * Domain Knowledge: Previous experience in defense, aerospace, fintech, or high-reliability domains where real-time data rendering is critical. * UX & Cognitive Load Awareness: High degree of user empathy; ability to design interfaces for high-stress environments where operators cannot afford distractions or confusing error states. * Proven Leadership & Ownership: A "mission-driven" and "product-oriented" mindset with a willingness to take full ownership of the frontend architecture. * Adaptability: Ability to thrive in a fast-paced, multi-disciplinary startup environment. We look forward to hearing how you can help shape the future of autonomous defense systems at Harmattan AI.