Senior Full-Stack Engineer, Real-Time Security UI & AI

Cobalt AI, LLC; United States; Hybrid; USD 160,000 - 210,000; Full time

Benefits offered by this job

Competitive salary (base)

Equity

Full benefits (medical, vision, dental

Flexible work arrangements

Job summary

Cobalt AI, LLC is hiring a frontend-focused software engineer in the United States to build and refine real-time security dashboards and full-stack features for our hybrid AI platform. You will own complex UI work, including canvas rendering, live streams, and data visualization, while collaborating with Django/Python services and GraphQL APIs.

We value deep frontend expertise, React/TypeScript proficiency, and experience with real-time data, WebRTC, and scalable backend systems.

Qualifications

• 5+ years of professional software engineering experience with depth in frontend development.
• Strong proficiency in React and TypeScript - opinionated about component architecture, state management, and rendering performance.
• Experience building complex, interactive UIs - canvas/2D rendering, real-time streaming, data visualization, or WebRTC.
• Backend fluency in Python and Django - building GraphQL APIs, writing migrations, and optimizing ORM queries.
• Solid understanding of PostgreSQL - data modeling, indexing, and query performance.
• Comfort working in a monorepo with shared packages, generated types, and cross-team code ownership.
• Experience deploying to AWS and working with containerized applications.

Responsibilities

• Build and refine real-time security dashboards, event triage interfaces, and fleet management tools used by security teams 24/7.
• Design and implement interactive UIs - canvas rendering, environment maps, robot positioning, data visualization, and live video streams.
• Own component architecture in a monorepo and contribute to a Storybook-driven design system.
• Build and extend the GraphQL API - queries, mutations, and WebSocket subscriptions for frontend apps.
• Work with Django models in PostgreSQL - multi-tenant data isolation, schema design, and migrations.
• Ship full-stack features end-to-end - from React components to GraphQL mutations to Django models and background jobs.
• Partner with CDS and ML teams on the detection-to-event pipeline.
• Write well-tested code with observability - tracing, structured logging, and metrics.
• Participate in code reviews, architectural discussions, incident response, and on-call rotations.

Skills

Frontend development

Real-time data visualization

TypeScript

Tools

React

GraphQL

WebRTC

Django

PostgreSQL

AWS

Monorepo tooling

Job description

Cobalt AI, LLC is hiring a frontend-focused software engineer in the United States to build and refine real-time security dashboards and full-stack features for our hybrid AI platform. You will own complex UI work, including canvas rendering, live streams, and data visualization, while collaborating with Django/Python services and GraphQL APIs.

We value deep frontend expertise, React/TypeScript proficiency, and experience with real-time data, WebRTC, and scalable backend systems.