Senior AI Architect & Technical Lead — Secure Enterprise AI

Expression; Arlington (VA); On-site; USD 180,000 - 240,000; Full time

Benefits offered by this job

401k matching

Medical/dental/vision insurance

Education reimbursement

Life insurance

PTO and holiday leave

Commuter Benefits Plan

Job summary

Expression Networks is seeking an experienced AI Architect to serve as technical lead for designing and integrating advanced AI and LLM capabilities for the DHS. The role focuses on secure, mission-focused AI agents, RAG, model evaluation, and enterprise data integration to support investigative analysis and decision making.

The ideal candidate is a hands-on AI architect and technical leader with strong experience in enterprise AI, distributed architectures, secure API development, and mentoring

Qualifications

• Proven hands-on experience architecting and deploying enterprise LLM-powered applications with agentic AI workflows.
• Experience with prompt engineering, model/version management, and human-in-the-loop workflows.
• Strong Python skills, RESTful APIs, and modern software engineering practices.
• Ability to lead technical design reviews and mentor engineers on complex integrations.
• Security-conscious design with emphasis on governance, data provenance, and auditable processes.

Responsibilities

• Lead the architecture, design, and implementation of enterprise AI and agentic AI solutions for DHS environments.
• Define scalable, secure architectures integrating LLMs, AI agents, and enterprise data services.
• Develop multi-agent orchestration frameworks and ensure proper prompt management and output validation.
• Oversee integration of government-approved models via secure endpoints and model governance.
• Design and implement RAG solutions with data provenance, access controls, and traceability.

Skills

Python

RESTful APIs

Distributed systems

Multi-agent AI

Security clearance

Leadership

Education

Bachelor's degree in Computer Science or related field

Tools

LangGraph

LangChain

Semantic Kernel

AutoGen

Palantir

Databricks

Elasticsearch

Job description

Expression Networks is seeking an experienced AI Architect to serve as technical lead for designing and integrating advanced AI and LLM capabilities for the DHS. The role focuses on secure, mission-focused AI agents, RAG, model evaluation, and enterprise data integration to support investigative analysis and decision making.

The ideal candidate is a hands-on AI architect and technical leader with strong experience in enterprise AI, distributed architectures, secure API development, and mentoring