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Principal AI Engineer, Cybersecurity
United States
Relocation
AI Summary
TENEX is seeking a Principal AI Engineer to lead the design and development of AI systems for their MDR platform. This role involves building scalable LLMs, graph reasoning engines, and feature pipelines for cybersecurity threat detection and response. Requires 10+ years of software engineering experience, deep LLM knowledge, and a strong understanding of production AI systems.
Key Highlights
Key technical leader for AI systems in a cybersecurity MDR provider.
Responsible for designing, developing, and optimizing scalable AI solutions.
Requires significant experience in LLM architecture, prompt engineering, and productionizing AI models.
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Key Responsibilities
Design & build the AI layer that powers autonomous detection, RAG-backed investigation, and auto-remediation workflows.
Develop and productionize large-scale LLMs, graph-based reasoning engines, and streaming feature pipelines that operate on billions of security events.
Own evaluation & reliability—from prompt libraries and fine tuning to red-team testing, latency budgets, and fallback strategies.
Mentor & grow a cohort of AI engineers; run design reviews, uphold code quality, and instill a security-first mindset.
Partner tightly with Product, Detection Engineering, and Customer Success to translate real-world attacker behavior into robust ML and rule-based detections.
Push the frontier—experiment with retrieval-augmented generation, tool-calling agents, and multi-modal models (text + logs + graphs) to keep defenders decisively ahead.
Technical Skills Required
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Benefits & Perks
Competitive salary and benefits package
Aggressive relocation packages
Zero state income tax
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Nice to Have
Prior work in cybersecurity (SIEM, EDR, SOAR, or MDR)
Experience with graph databases or security-focused knowledge graphs
Familiarity with cloud infrastructure security (AWS, GCP, or Azure)
Background leading teams in high-growth startups or enterprise SaaS
Relevant certifications (AWS/GCP Professional Engineer, Kubernetes, or security-related credentials)
Job Description
TENEX is an AI-native, automation-first, built-for-scale Managed Detection and Response (MDR) provider. We are a force multiplier for defenders, helping organizations enhance their cybersecurity posture through advanced threat detection, rapid response, and continuous protection. Our team is composed of industry experts with deep experience in cybersecurity, automation, and AI-driven solutions. Backed by leading investors, we are rapidly growing and seeking top talent to join our mission of revolutionizing the MDR landscape.As a
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