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Software Development Engineer, Leo Security

Seattle, Washington, United States💼 Full-time💰 $143,700–$194,400🗓 2026-08-13 → 2026-09-26

Core

Building a neurosymbolic reasoning platform combining LLM agents, knowledge graphs, and real-time asset state stores to automate incident response, threat analysis, and detection authoring for a global satellite constellation's security infrastructure.

Role type

Senior IC software development engineer (security platform)

Builds

Neurosymbolic reasoning platform for automated security operations and threat detection

Domain

Aerospace / Satellite Security / Cybersecurity

Deliverable

production ML models | product features

Required skills

C#, C++, Java, or Perl; distributed systems design; real-time event correlation; stream processing; LLM API integration; graph databases; security architecture

Preferred skills

access control systems; cryptography; performance optimization; fault tolerance; knowledge graph platforms

Technologies

Neptune, Neo4j, LLM APIs, streaming pipelines

Responsibilities

Own end-to-end software features from design to production; debug and profile high-throughput pipelines; pair with applied scientists to backtest detections; automate manual security workflows; optimize event-to-detection and detection-to-containment latencies

Seniority

Senior, hands-on IC

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