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Horizon3

15 jobs

Posted Sort

15 jobs Posted Sort

Principal Software Engineer (Agentic Data Platform)

NewBe an early applicant RemoteNorth AmericaFull-timePrincipal

Principal Engineer (individual contributor, no direct reports) who anchors NodeZero's data infrastructure at Horizon3. Owns PostgreSQL-at-scale architecture, multi-tenant schema design, graph data models, and database standards; writes production Go/Python code, authors design docs, and mentors engineers.

API AWS Ccpa Cybersecurity Data Ingestion +14 skills

255K – 290K $

Federal Platform Engineer

New RemoteNorth AmericaFull-time

We are looking for a Federal Platform Engineer to help lead the deployment and operation of our product infrastructure in multiple federal environments ranging from FedRAMP through Classified workloads Your goal will…

Agile AI Ansible Automation AWS +35 skills

200K – 230K $

Senior Backend Engineer (Integrations)

RemoteNorth AmericaFull-timeSenior

You’ll be joining the Platform Integration Team (PIT Crew) — a high-impact group whose mandate is critical to the scalability and extensibility of the NodeZero platform. The PIT Crew’s mission is to transform…

Agentic AI Agile AI API Authentication +32 skills

170K – 235K $

Senior Backend Engineer (Growth & Managed Security Service Provider (MSSP))

RemoteNorth AmericaFull-timeSenior

You’ll be joining Growth & MSSP - the team that owns the foundational control plane governing what customers can access, what they’ve purchased, and how they’re administered across NodeZero If the Pentest Platform…

Agile API Authentication AWS Azure +16 skills

170K – 235K $

Federal Backend Engineer

RemoteNorth AmericaFull-timeMiddle

The Federal - Senior Backend Engineer will be joining one of our world-class software engineering teams, and will be a key contributor to both user-facing product launches as well as platform enhancements and…

Agile AI Analytics API AWS +16 skills

Staff Front End Software Engineer

RemoteNorth AmericaFull-timeStaff

We are looking for a Staff Software Engineer to join our Core Front-End team and help shape the future of the user experience across the Horizon3 NodeZero platform This is not a traditional feature team role. The Core…

Accessibility AI API AWS CI/CD +10 skills

200K – 260K $

Staff Developer Experience Engineer (Developer Experience)

RemoteNorth AmericaFull-timeStaff

Senior Developer Experience Engineer at Horizon3 shapes how the company engineers build, test, release, and operate software — defining architecture and roadmap for local development, CI/CD, build systems, and release workflows, and leading initiatives that reduce manual coordination across Platform, Security, QA, and feature teams. Core technologies include GitLab CI/CD, Docker/OCI images, Kubern

Agentic AI AI Argo CD Automation AWS +22 skills

200K – 270K $

Staff Software Engineer (Autonomous Defense)

RemoteNorth AmericaFull-timeStaff

We are hiring a Staff Software Engineer to lead the technical work for NodeZero’s defensive agents: the systems that translate proven attack paths into continuous actionable remediation You’ll set direction alongside…

Agentic AI AI API AWS Azure +21 skills

229K – 270K $

Senior Backend Engineer (Autonomous Defense)

RemoteNorth AmericaFull-timeSenior

As a Senior Backend Engineer on the Defensive Agent team, you’ll build the platform that NodeZero’s defensive agents run on. Our AI researchers define what these agents should reason about, you build the systems that…

Agentic AI AI API AWS Azure +25 skills

170K – 235K $

Senior Back-End Engineer (Data & App Platform)

RemoteNorth AmericaFull-timeSenior

The Pentest Data Platform team owns how NodeZero turns raw pentest telemetry into the findings, attack paths, reports, and insights our customers act on. As Horizon3 has grown in both customer count and customer size.…

Airflow API AWS Cloud Cybersecurity +20 skills

170K – 235K $

Senior Backend Engineer (Precision Defense)

RemoteNorth AmericaFull-timeSenior

As a Senior Backend Engineer on the Precision Defense team, you’ll help build the systems that move our customers from reactive security toward proactive, evidence-based defense The team operates across three closely…

Agile API Automation AWS Azure +20 skills

170K – 235K $

Staff Software Engineer (Tripwires)

RemoteNorth AmericaFull-timeStaff

We are looking for a Staff Software Engineer to join our Detection & Deception (DnD) Team to help build Horizon3’s deception capabilities. The team works across product, design, and engineering to deliver features…

Active Directory Agile Authentication AWS Azure +15 skills

229K – 270K $

Senior Back End Engineer

RemoteNorth AmericaFull-timeSenior

The Senior Backend Engineer will be joining one of our world-class software engineering teams, and will be a key contributor to both user-facing product launches as well as platform enhancements and stability Develop…

Agile Analytics API AWS Azure +14 skills

155K – 200K $

Senior Software Engineer (Browser Automation)

RemoteNorth AmericaFull-timeSenior

We’re building an autonomous, black-box web application penetration tester It crawls and attacks real production websites the way a skilled human pentester would, finding broken access control, injection, XSS, and…

Agentic AI AI Authentication Automation JavaScript +9 skills

169K – 208K $

WebApp Offensive Security Software Engineer

RemoteNorth AmericaFull-time

We’re looking for a Webapp Offensive Security Engineer with deep, hands-on web application penetration testing experience to push our autonomous testing beyond what it can do today You’ll be testing real customer web…

Agentic AI AI API Automation Fine Tuning +12 skills

196K – 242K $