Real-Time Frontend Engineer for Tactical C2 UI

Harmattan AI; Paris; On-site; EUR 70,000 - 120,000; Full time

Job summary

Harmattan AI in Paris is seeking a Front-End Engineer to build the operator's viewport into the battlefield. You will craft the Human-Machine Interface for our C2 system, delivering real-time COP updates and multi-stream video handling on tactical PCs.

Collaborate with UX/UI, backend, and mission planning teams to optimize performance, reduce cognitive load, and ensure 60fps rendering. Familiarity with Mapbox/Cesium is a plus.

Qualifications

• Educational background in Computer Science, Software Engineering, or a related field.
• Experience shipping production-grade web apps with complex data visualisation.
• Strong focus on performance and state management.

Responsibilities

• COP Visualization: interactive maps and 2D/3D overlays with real-time telemetry.
• Real-Time Video Grid: multi-stream video UI with low latency.
• Mission Planning & Command: tools for drawing waypoints and issuing commands.
• Performance Architecture: state management for high-frequency data without UI jitter.
• Collaborative Development: partner with UX/UI, backend, and algorithms.
• Optimization: maintain 60fps rendering during updates.

Skills

State management

Real-time data flow

Geospatial mapping

React

Vue

WebGL/Canvas

UX & cognitive load

Ownership & leadership

Adaptability

Education

B.S./M.Sc. in CS/Software Eng

Tools

Mapbox

Leaflet

Cesium

Job description

Harmattan AI in Paris is seeking a Front-End Engineer to build the operator's viewport into the battlefield. You will craft the Human-Machine Interface for our C2 system, delivering real-time COP updates and multi-stream video handling on tactical PCs.

Collaborate with UX/UI, backend, and mission planning teams to optimize performance, reduce cognitive load, and ensure 60fps rendering. Familiarity with Mapbox/Cesium is a plus.