Senior Backend Engineer - Admin Platform (Remote)

Horizon3.ai; United States; Remote; USD 199,000 - 235,000; Full time

Benefits offered by this job

Health Insurance

Vision Insurance

Dental Insurance

Equity

Flexible vacation

Parental leave

Remote-friendly

Job summary

Horizon3 is seeking a Senior Backend Engineer to join the Admin Experience team. You will build the services and APIs that let NodeZero customers securely administer their organizations, including user access, parent-child account relationships, account settings, and administration capabilities such as roles, access controls, and audit logs.

You’ll own substantial features from design through rollout and production support, applying sound data modeling and authorization practices to multi-tenant

Qualifications

• 7+ years of professional software engineering experience.
• Experience designing and operating backend services and APIs.
• Strong SQL and relational database experience.
• Experience with cloud platforms (AWS, GCP, Azure) and containers.
• Focus on testing, production reliability, observability, and clear technical communication.
• Ability to learn new languages and frameworks.
• Experience with multi-tenant SaaS and RBAC is a plus.

Responsibilities

• Design, build, and operate backend services and APIs for user access, account hierarchies, settings, and administration workflows.
• Own features from design to tests, safe rollout, observability, and production support.
• Apply secure authorization and data-modeling practices to customer and parent-child account relationships.
• Investigate production issues and improve service reliability, performance, and observability.
• Write and review maintainable code, automated tests, design documentation, runbooks, and support guidance.
• Partner with Product, frontend engineers, and adjacent platform teams to deliver cohesive customer workflows.
• Mentor teammates through design discussions, code reviews, and collaborative problem solving.

Skills

Backend engineering

APIs

Security-minded design

Collaboration

Technical writing

Learning mindset

Problem solving

Education

Bachelor’s degree in CS/Engineering

Tools

Docker

SQL/PostgreSQL

Kubernetes

GraphQL

Datadog/Prometheus/OpenTelemetry

Job description

Horizon3 is seeking a Senior Backend Engineer to join the Admin Experience team. You will build the services and APIs that let NodeZero customers securely administer their organizations, including user access, parent-child account relationships, account settings, and administration capabilities such as roles, access controls, and audit logs.

You’ll own substantial features from design through rollout and production support, applying sound data modeling and authorization practices to multi-tenant