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Principal Engineer, Database Platform (Cybersecurity)

horizon3.ai • United States
Remote
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Lead database architecture for Horizon3.ai’s NodeZero™ platform, defining scalable PostgreSQL and graph data models for cybersecurity pentesting. Own schema governance, multi-tenant security, and cross-functional data contracts. Requires deep PostgreSQL expertise, Go/Python proficiency, and hands-on mentorship.

Key Highlights
No direct reports; influence through technical leadership and mentorship.
Owns PostgreSQL architecture, graph data models, and multi-tenant security at scale.
Requires hands-on expertise in schema migrations, query optimization, and Go/Python development.
Key Responsibilities
Define and drive the technical roadmap for the Database Platform.
Own complex database architecture decisions including schema design, partitioning, and scalability.
Be the definitive expert on PostgreSQL at scale, including query optimization and connection pooling.
Architect and guide the evolution of NodeZero's graph-based asset model.
Ensure zero-downtime schema migrations and backwards-compatible schema evolution.
Mentor engineers through code and design reviews, raising the team's technical bar.
Technical Skills Required
PostgreSQL (Advanced) Database Architecture (Multi-Tenant) Go/Python (Production Code)
Benefits & Perks
Health, vision & dental care for you and your family
Flexible vacation policy
Generous parental leave
Nice to Have
Experience with graph databases (Neo4j, AWS Neptune).
Familiarity with migration tooling like Flyway or golang-migrate.

Job Description

Horizon3.ai is a fast-growing, remote cybersecurity company dedicated to enabling organizations to proactively find, fix, and verify exploitable attack vectors before criminals exploit them. Our flagship product, the NodeZero™ platform, delivers production-safe autonomous pentests and other key assessment operations that scale across internal, external, cloud, and hybrid cloud environments.

What You'll Do

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