Drimva

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.

Model-written summary · the original posting is authoritative

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