Drimva

Horizon3AI

Senior Backend Engineer, Autonomous Defense

$170K–$235K

US, Remote · Remote · Senior · Full-time · Posted Sep 14, 2026

Experience
7+ years professional software engineering experience.
Education
Bachelor's Degree in Computer Science, Computer Engineering or related field.

About the job

Build the backend platform that runs NodeZero’s defensive agents safely and reliably across customer environments, turning AI-research capabilities into production systems.

What you'll do

  • Build agent runtime, tool, connector, and orchestration systems, including durable workflows and tenant-level authorization.
  • Implement safe-change controls such as simulation, approval gates, staged rollout, rollback, and audit trails; extend isolation and observability for agent actions.
  • Develop ETL and GraphQL features and pipelines for agent context, run history, remediation state, and research datasets; partner with AI researchers and product teams.

What they ask for

  • Bachelor's Degree in Computer Science, Computer Engineering or related field.
  • 7+ yrs professional software engineering experience using modern object-oriented or functional languages.
  • Experience building applications on cloud computing platforms such as AWS, Azure, GCP, using container technologies such as Docker and Kubernetes.
  • Expert proficiency in SQL and demonstrated experience designing and operating distributed systems in production.

Nice to have

  • Experience building agentic or LLM-backed systems in production.
  • Experience with durable execution or workflow engines, multi-tenant platforms, third-party APIs, security control planes, GraphQL backends, or observability tooling.

Pay

$170,000 - $235,000 annually (base salary)

Tools

Python, Go, Scala, C++, TypeScript, AWS, Azure, GCP, Docker

AI focus

Build production infrastructure for defensive agents, working with AI researchers; the role builds the substrate for agent capabilities rather than tuning prompts. Also build ETL pipelines for datasets researchers train and evaluate against.

Model-written summary · the original posting is authoritative

First seen Oct 29, 2026 · Last verified Nov 5, 2026 (UTC)