Principal Backend Engineer, Enterpise Platform

The role

You will set technical direction for foundational services that power NodeZero customer and partner experiences. You will guide architecture and execution across teams and mentor other technical leaders.

What you will do

• Set long-term technical direction for Enterprise Platform capabilities
• Guide architecture for multi-tenant services and account models
• Partner with Engineering, Product, and business leaders to shape technical priorities
• Lead high-impact, cross-team technical initiatives
• Stay close to implementation through design reviews, code reviews, and hands-on contributions
• Improve production reliability and supportability through testing, observability, and monitoring
• Balance product delivery with operational support and on-call health
• Mentor senior engineers and technical leaders
• Communicate architecture, risks, and decisions to stakeholders

Required qualifications

• Bachelor’s degree in Computer Science, Computer Engineering, or a related field, or equivalent practical experience
• Extensive professional software engineering experience building and operating production backend services
• Demonstrated technical leadership and impact beyond a single team
• Deep experience with backend services or multi-tenant SaaS platforms
• Strong architectural judgment across complex data models, distributed systems, security, reliability, and scalability tradeoffs
• History of earning trust with senior technical, product, and business partners
• Track record of raising engineering quality and developing senior technical talent through influence and mentorship
• Deep experience building and operating backend services in a modern language such as Python, Go, Java, or TypeScript
• Strong SQL and relational data modeling experience
• Experience designing APIs and service design for production systems
• Experience building cloud-hosted services and operating containerized applications such as Docker
• Familiarity with Kubernetes or a comparable orchestrator

Nice to have

• Experience with MSP/MSSP, reseller, or other partner software models
• Experience with account hierarchies, delegated administration, tenant isolation, or role-based access control (RBAC)
• Experience with licensing, entitlements, asset allocation, usage limits, or product notifications
• Experience with Python or Go, AWS, PostgreSQL, GraphQL, Docker, and Kubernetes
• History of leading platform or architecture changes that improved reliability, delivery speed, developer effectiveness, or customer outcomes

Benefits

• Equity package in the form of stock options
• Health, vision & dental insurance for you and your family
• Flexible vacation policy
• Generous parental leave

About the company

Horizon3 is a remote cybersecurity company dedicated to enabling organizations to proactively find, fix and verify exploitable attack vectors. Their flagship product, NodeZero, delivers production-safe autonomous pentests.