Senior Backend Engineer - Admin & Security for Multi-Tenant

horizon3ai; United States; Remote; USD 140,000 - 190,000; Full time

Job summary

horizon3ai is building a multi-tenant cybersecurity platform and seeks a senior backend engineer to design, build, and operate backend services and APIs for users, accounts, and security settings. You will own features end-to-end from design through production support, partnering with product and frontend teams.

The role emphasizes secure authorization, data modeling for tenant hierarchies, and improving service reliability, observability, and performance, with a focus on testing and production

Qualifications

• Bachelor’s degree or equivalent practical experience.
• 7+ years of professional software engineering experience.
• Experience designing and operating backend services and APIs from design to production.
• Strong SQL and relational database skills.
• Experience with cloud platforms and containerized apps like Docker.
• Focus on testing, reliability, observability, and end-to-end ownership.

Responsibilities

• Design, build, and operate services and APIs for user access, account relationships, settings, and administration.
• Own features through implementation, testing, safe release, observability, and ongoing support.
• Apply secure authorization and sound data modeling to tenant and parent-child account workflows.
• Diagnose production issues and improve service reliability, performance, and monitoring.
• Write and review maintainable code, automated tests, design documents, runbooks, and support guidance.
• Collaborate across product and engineering teams, and help teammates grow through reviews and design discussions.

Skills

SQL proficiency

Relational databases

Data modeling

Testing

Observability

End-to-end ownership

Docker

Cloud platform

Communication

Python

Education

Bachelor's degree

Tools

Docker

Kubernetes

GraphQL

PostgreSQL

Job description

horizon3ai is building a multi-tenant cybersecurity platform and seeks a senior backend engineer to design, build, and operate backend services and APIs for users, accounts, and security settings. You will own features end-to-end from design through production support, partnering with product and frontend teams.

The role emphasizes secure authorization, data modeling for tenant hierarchies, and improving service reliability, observability, and performance, with a focus on testing and production