C2 UI/UX Designer

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 specialised UI/UX Designer to join our C2 Core team in Paris. In this role, you will be the primary advocate for the human operator within a highly complex, machine-driven tactical system. You will enter a high-stakes environment where operators must make sense of massive amounts of data—from robot fleet telemetry to 3D scene localisation—while under extreme cognitive and environmental stress.

Your mission is to translate the advanced capabilities of our robot fleet and mission planning algorithms into an intuitive, frictionless, and zero-distraction Command and Control (C2) interface.

Responsibilities

• Tactical COP Design: Design the layout, iconography, and interactions for the Common Operational Picture (COP), ensuring operators instantly grasp the spatial reality of the fleet.

• Mission Planning Workflows: Create intuitive, drag-and-drop or click-to-navigate workflows for operators to set rules of engagement and issue commands without needing an engineering manual.

• Multi-Modal Data Display: Manage the interaction models for simultaneous high-resolution video streams alongside critical alerts and text-based telemetry.

• Tactical Design System: Build and maintain a scalable component library optimised for ruggedized, outdoor field screens (considering high contrast, night-vision compatibility, and gloved-hand usability).

• Cross-Functional Collaboration: Sync daily with Product Managers, Frontend/Backend Engineers, and Algorithm Designers to align on technical constraints and hardware performance.

• Continuous Iteration: Establish feedback loops with field operators and conduct usability testing to ensure cognitive load remains manageable in the field.

Candidate Requirements

• Educational Background: A degree in Human-Computer Interaction (HCI), Interaction Design, Human Factors Engineering, or Cognitive Psychology is highly valuable. A strong portfolio solving complex, data-heavy UX problems is the ultimate deciding factor.

• Technical Experience: Proven experience shipping production-grade web applications with complex data visualisation or real-time UIs for mission-critical systems.

• Domain Expertise: Experience in defence, aerospace, fintech, or high-reliability domains is preferred. Familiarity with defence products is a significant plus.

• Systems Thinking: A minimalist approach to design that prioritises function and clarity over aesthetics, understanding that "predictable is better than novel" in tactical environments.

• Technical Pragmatism: Ability to design resilient UI states for intermittent connectivity (latency/dropped packets) and physical hardware constraints like screen glare.

• Communication & Influence: Strong analytical skills to extract complex mental models from subject matter experts (robotics engineers and tactical operators).

• Commitment: 100% dedication to Harmattan AI’s mission to bring a defensive edge to allied nations through ethical, high-impact technology.

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