Senior Frontend Engineer — Real-Time Security UI Leader

United States Digital Space LLC; San Mateo (CA); On-site; USD 130,000 - 280,000; Full time

Benefits offered by this job

Healthcare coverage

Vision & Dental coverage

HSA contributions

Mental health support

Parental leave

Job summary

United States Digital Space LLC in San Mateo, CA seeks a Senior Frontend Engineer to build advanced UI components powering AI-driven intrusion detection and video monitoring.

You will work with product, design, and full-stack engineers on real-time security interfaces, maps, alerts, and timelines; onsite at HQ; 5+ years, React, JavaScript, UX focus.

The role offers ownership, fast iterations, and a strong in-office culture with growth opportunities.

Qualifications

• 5+ years of production-grade web applications.
• Expertise in JavaScript and React.
• Strong understanding of UI architecture, performance, and browser behavior.
• A product mindset with focus on UX and usable tools.

Responsibilities

• Build rich, real-time UI components for intrusion detection and video monitoring.
• Architect scalable frontend systems and evolve our UI platform.
• Collaborate with product, design and backend teams to deliver end-to-end features.
• Lead technical decisions and mentor other engineers on best practices.
• Dive into the backend when needed to shape APIs and support full-stack work.

Skills

React

JavaScript

Frontend architecture

UX mindset

API integration

Education

BS/MS in CS

Job description

United States Digital Space LLC in San Mateo, CA seeks a Senior Frontend Engineer to build advanced UI components powering AI-driven intrusion detection and video monitoring.

You will work with product, design, and full-stack engineers on real-time security interfaces, maps, alerts, and timelines; onsite at HQ; 5+ years, React, JavaScript, UX focus.

The role offers ownership, fast iterations, and a strong in-office culture with growth opportunities.