199K–235K USD / year
Senior Backend Engineer, Licensing
BackendRemote — United States
Published on 2026-10-30
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About this role
Build and operate backend services that manage customer purchases, product entitlements, enabled capabilities, and usage limits for Horizon3’s NodeZero platform. The role emphasizes correctness, reliable production operation, and collaboration across Product and engineering teams.
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
Licensing, Usage and Entitlement team within Enterprise Platform.
Stack
PythonGoJavaTypeScriptSQLPostgreSQLGraphQLAWS
What you'll do
- Design, build, and maintain APIs and services for purchases, product packaging, entitlements, and usage limits.
- Own features through design, testing, rollout, and production operation.
- Build entitlement and usage workflows for direct and partner account models.
- Define interfaces and resolve licensing and feature-access edge cases with Product and engineering partners.
- Improve tests, observability, documentation, runbooks, and support playbooks.
- Investigate production issues and implement durable fixes.
What we're looking for
- 7+ years of professional backend software engineering experience.
- Experience with a modern backend language such as Python, Go, Java, or TypeScript.
- Experience designing APIs and data models for business-critical or customer-facing workflows.
- Strong SQL and relational database experience, including data integrity and production troubleshooting.
- Experience with cloud-hosted and containerized services; familiarity with Kubernetes or a comparable orchestrator.
- Strong testing, observability, and production-service ownership skills.
- Bachelor’s degree in a related field or equivalent practical experience.
Nice to have
- Experience with licensing, entitlements, subscriptions, usage metering, billing-adjacent workflows, or feature access controls.
- Experience with multi-tenant SaaS, account hierarchies, RBAC, or partner account models.
- Experience with Python or Go, PostgreSQL, GraphQL, AWS, and event-driven or distributed systems.
- Familiarity with Kafka, Temporal, Prefect, or production observability platforms.
Benefits
- Stock options.
- Health, vision, and dental insurance for employees and their families.
- Flexible vacation policy.
- Generous parental leave.