Senior Frontend Developer

About the role

Seismic Consulting Group is seeking a Senior Frontend Engineer with strong production experience. You will build the interfaces that operators use to monitor infrastructure in real time, view incidents and evidence, and manage sites. The role focuses on delivering a reliable, high‑performance dashboard across devices and connectivity conditions.

Key responsibilities

• Develop and maintain the operator‑facing web dashboard and command‑centre interface that receive live data from many concurrent sites.
• Implement regulatory access views required for compliance oversight.
• Contribute to architecture and user‑experience decisions from day one.

Required profile

• Strong hands‑on experience with React in production, including component architecture and state management.
• Proficiency in TypeScript and a solid understanding of typed code in team environments.

Required skills

• React
• TypeScript
• WebSockets or Server‑Sent Events for real‑time updates
• Mapping libraries (Mapbox, Leaflet, Google Maps)
• Performance optimisation techniques (lazy loading, virtualization, pagination)
• REST API integration
• Offline‑first development for poor connectivity
• Testing (unit, integration, end‑to‑end)
• Cross‑browser and cross‑device compatibility