Appian
Lead AI Security Engineer
$150K–$275K
McLean, Virginia +1 · Full-time · Posted Sep 14, 2026
- Location
- McLean, Virginia
Appian Corporation - US - Experience
- 4+ years in professional software engineering, including at least 1.5+ years building LLM-powered applications; 5+ years programming with Python; 2+ years deploying AI solutions on cloud platforms. Education-related experience: bachelor's plus at least 4 years developing AI/ML algorithms or technologies, OR master's plus at least 2 years.
- Education
- Bachelor's degree in Computer Science, AI, Electrical Engineering, Computer Engineering, or related fields plus at least 4 years of experience developing AI and ML algorithms or technologies, OR a Master's degree in a related field plus at least 2 years of experience.
About the job
Build and secure production-grade AI agents and multi-agent workflows for an autonomous, human-supervised security operations center.
What you'll do
- Design, test, and deploy AI agents integrated with enterprise security tools and threat intelligence feeds.
- Convert SOC playbooks into agentic pipelines and build production RAG workflows; evaluate and optimize LLM performance.
- Secure LLM systems against risks including prompt injection, data poisoning, and tool abuse, and implement human handoffs.
What they ask for
- 4+ years of professional software engineering experience, including at least 1.5+ years building LLM-powered applications.
- 5+ years programming with Python.
- 2+ years deploying scalable and responsible AI solutions on cloud platforms.
- Bachelor's degree in a related field plus at least 4 years developing AI/ML algorithms or technologies, OR a related master's degree plus at least 2 years of that experience.
Nice to have
- Hands-on multi-agent or orchestration experience with tools such as LangChain, LlamaIndex, AutoGen, CrewAI, or Semantic Kernel.
- Production vector database experience; cybersecurity platform integrations; containerized cloud AI deployment; or fine-tuning smaller domain-specific models.
Pay
$150,000 — $275,000 USD (base salary)
Tools
Python, LangChain, LlamaIndex, AutoGen, CrewAI, Semantic Kernel, Pinecone, Qdrant
AI focus
Build autonomous and semi-autonomous AI agents for SOC triage, incident response, threat mitigation, and analyst workflows; develop RAG pipelines, optimize LLMs, implement human oversight, and secure AI systems.
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