Principal Database Platform Engineer — Remote & Scale

NightDragon Acquisition Corp.; United States; Remote; USD 255,000 - 290,000; Full time

Benefits offered by this job

Inclusive team

Growth opportunities

Innovative culture

Remote work

Competitive compensation

Job summary

Horizon3.ai is a remote cybersecurity company building NodeZero, with a focus on scalable data infrastructure for millions of assets and multi-tenant environments. The Principal Engineer for Database Platform leads architectural direction and hands-on development to ensure scalable data storage, querying, and migration at scale.

You will craft database standards, drive cross-team collaboration, and mentor engineers while writing production code and design docs to support growth and reliability.

Qualifications

• Deep PostgreSQL expertise including indexing, partitioning, replication and vacuuming at scale.
• Architecture experience with multi-tenant databases and tenant isolation.
• Zero-downtime schema migrations and migration tooling knowledge.
• Production coding in Go or Python, not just SQL.
• Familiarity with graph databases or graph patterns in SQL.
• Ability to write clear design docs and ADRs for complex DB decisions.

Responsibilities

• Own major database architecture decisions and standards across the team.
• Write production code, author design documents, and set technical direction.
• Ensure data layer scalability for growth across tenants and environments.
• Communicate complex DB decisions clearly to engineers and cross-functional teams.

Skills

PostgreSQL

Multi-tenant databases

Go or Python

Graph data models

Architectural leadership

Tools

Flyway

golang-migrate

ADRs

Job description

Horizon3.ai is a remote cybersecurity company building NodeZero, with a focus on scalable data infrastructure for millions of assets and multi-tenant environments. The Principal Engineer for Database Platform leads architectural direction and hands-on development to ensure scalable data storage, querying, and migration at scale.

You will craft database standards, drive cross-team collaboration, and mentor engineers while writing production code and design docs to support growth and reliability.