Senior Software Development Engineer, Leo Security

What you'll do

• Set platform architecture and build distributed systems for telemetry ingestion, real-time correlation, agent execution, and observability.
• Automate security operations and develop evaluation, backtesting, and deployment safeguards for models and detections.
• Operate services, lead design reviews, mentor engineers, and partner with applied scientists to productionize research.

What they ask for

• 5+ years of non-internship professional software development experience and 5+ years programming in at least one language.
• 5+ years leading design or architecture of new and existing systems, including design patterns, reliability, and scaling.
• Experience as a mentor, tech lead, or engineering team lead; 3+ years in this capacity.
• Experience with performance optimization and designing distributed systems, including real-time stream processing at terabyte scale.

Nice to have

• 5+ years of full software development life cycle experience.
• Experience with LLM APIs or agent frameworks, knowledge graphs, multi-agent orchestration, production AI observability, or security disciplines.

Pay

168,100.00 - 227,400.00 USD annually (base salary); 168,100.00 - 227,400.00 USD annually (base salary)

Tools

LLM APIs, Neptune, Neo4j, SIMD

AI focus

Build a neuro-symbolic platform combining LLM agents, a knowledge graph, and real-time asset state to automate security analysis and response; create evaluation, backtesting, observability, and guardrails for AI workloads.