Senior Software Engineer, Cobalt AI

Full-Stack

$160-210k

+ Equity

React

AWS

TypeScript

Python

Django

GraphQL

Postgres

Senior and Expert level

San Francisco Bay Area

Smart security & assistance robots

Be an early applicant

Smart security & assistance robots

101-200 employees

B2BArtificial IntelligenceSecurityManufacturingDeep TechRoboticsMachine Learning

Be an early applicant

$160-210k

+ Equity

React

AWS

TypeScript

Python

Django

GraphQL

Postgres

Senior and Expert level

San Francisco Bay Area

101-200 employees

B2BArtificial IntelligenceSecurityManufacturingDeep TechRoboticsMachine Learning

Company mission

To elevate the work that people do by training machines to do boring tasks better.

Job

Company

Role

Who you are

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

What the job involves

We’re hiring a Senior Full Stack Engineer to own the interfaces that security teams rely on every day, including live robot video feeds, event triage workflows, real-time alarm dashboards, and fleet management tools built in React and TypeScript
You’ll also work across the backend (Django/Python, GraphQL) to build the APIs that power those experiences
Build and refine real-time security dashboards, event triage interfaces, and fleet management tools used by security teams 24/7
Design and implement complex, interactive UIs — canvas rendering (environment maps, robot positioning), data visualization, live robot video via WebRTC, and subscription-driven event streaming
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 — serving all frontend applications
Work with Django models in PostgreSQL — multi-tenant data isolation, schema design, query optimization, and migrations
Ship full-stack features end-to-end — from React components to GraphQL mutations to Django models and background jobs
Partner with the CDS and ML teams on the detection-to-event pipeline
Write well-tested code with strong observability — tracing, structured logging, and metrics
Participate in code reviews, architectural discussions, incident response, and on-call rotations

Our take

As robotics transitions from a dream of the future to the reality of now, companies are looking to employ machines to protect their offices, warehouses, and people. Cobalt AI supplies security robots that use advanced sensor tech and computing to patrol premises and provide assistance, much like a human security guard.

Cobalt's simple, accessible robots come with an array of features, from 2-way video and audio chat, to smoke, carbon monoxide, and ozone sensors. Autonomous vehicle technology means they are able to move and dock alone, with 360-degree 4K cameras and day/night vision making them acutely aware of its surroundings.

With uses spanning reporting anomalies, badge checks, evacuation crowd control, and many more, it is no surprise that Cobalt AI has secured a range of big-name clientele. This includes DoorDash, fintech startup Ally Financial, and mobility solutions company Woven Planet.

Steph

Company Specialist at Welcome to the Jungle

Insights

Top investors

Glassdoor (3.5)

Company

Funding (2 rounds)

Jun 2019

$35m

SERIES B

Apr 2018

$13m

SERIES A

Total funding: $48m

Company HQ

East Industrial, Fremont, CA

Leadership

Ken Wolff

(CEO)

Former COO of the company. Previously founded AffirmX and was Managing Partner at Achievence.

Salary benchmarks

We don't have enough data yet to provide salary benchmarks for this role.

Submit your salary to help other candidates with crowdsourced salary estimates.

Share this job

View 5 more jobs at Cobalt AI