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Horizon3Ai

Senior Backend Engineer, Growth & MSSP

Who can apply: US-based role. The employer has not said which states are eligible — confirm before applying.
Location as listed by the employer: “US, Remote”
Apply on Horizon3Ai's site ↗

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About this role

Horizon3Ai is hiring for a Senior Backend Engineer, Growth & MSSP role (full-time). See the official posting for full details.

Requirements

  • Bachelor's Degree in Computer Science, Computer Engineering, or a related field.
  • 7+ years of professional software engineering experience using modern object-oriented or functional languages (Python, Go, TypeScript, Java, Scala, C++, etc.).
  • Experience building production applications on cloud platforms (AWS, Azure, GCP) using Docker and Kubernetes.
  • Experience building multi-tenant SaaS platforms with strong tenant isolation - particularly around access controls, data scoping, and account hierarchy.
  • Hands-on experience with RBAC, authorization, authentication, or SSO systems, and the patterns that make them consistent and auditable at scale.
  • Experience with licensing, subscription, entitlement, usage metering, or billing-adjacent systems - especially where correctness and consistency across services matter.
  • Experience designing and building audit log or event history systems with compliance or support requirements in mind.
  • Familiarity with provisioning and feature-access patterns - auto-provisioning, feature flags, and staged rollout for commercial SaaS products.

Summarized from the employer's posting — check the full posting for every requirement.