255K–295K USD / year
Principal Backend Engineer, Enterpise Platform
BackendRemote — United States
Published on 2026-11-03
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About this role
Set technical direction for foundational backend services supporting Horizon3’s NodeZero platform. This hands-on principal-level role focuses on secure, reliable, scalable enterprise capabilities and cross-team technical leadership.
About the company
Horizon3.ai is a technology company specializing in cybersecurity solutions, focusing on automated penetration testing and threat detection for enterprises. They provide a range of services aimed at enhancing security posture and risk management for organizations across various sectors.
The team
Enterprise Platform team
Stack
PythonGoJavaTypeScriptSQLDockerKubernetesAWS
What you'll do
- Set technical direction for licensing, entitlements, account administration, onboarding, provisioning, notifications, and asset workflows.
- Guide architecture for multi-tenant services, account hierarchies, permissions, and tenant resource allocation.
- Lead high-impact cross-team technical initiatives from ambiguous problems to durable solutions.
- Contribute to critical systems through design reviews, code reviews, investigation, and hands-on implementation.
- Improve reliability and operability through testing, observability, safe rollouts, incident learning, and documentation.
- Mentor senior engineers and communicate technical decisions to stakeholders.
What we're looking for
- Extensive experience building and operating production backend services.
- Demonstrated technical leadership and impact across multiple teams.
- Experience designing APIs and data models for multi-tenant or customer-facing SaaS systems.
- Strong architectural judgment across data modeling, distributed systems, security, reliability, and scalability.
- Experience with a modern backend language, relational databases, cloud-hosted services, and containerized applications.
Nice to have
- Experience with MSP/MSSP, reseller, or other partner software models.
- Experience with account hierarchies, delegated administration, tenant isolation, or RBAC.
- Experience with licensing, entitlements, asset allocation, usage limits, or product notifications.
- Experience with Python or Go, AWS, PostgreSQL, GraphQL, Docker, and Kubernetes.
Benefits
- Stock options
- Flexible vacation policy
- Generous parental leave
- Health, vision, and dental insurance for employees and their families