AI-Driven Full-Stack Engineer for Mission-Ready Apps

LMI; Tysons (VA); On-site; USD 140,000 - 190,000; Full time

Job summary

LMI, headquartered in Tysons, Virginia, seeks an AI Full-Stack Engineer to design and deliver end-to-end software that blends frontend, backend, and AI components. You will work across product, platform, and security teams to build mission-ready, compliant solutions for federal-style workloads.

You will leverage AI capabilities, LLMs, and RAG workflows to accelerate delivery while maintaining security, reliability, and observability.

Qualifications

• Experience delivering modern full-stack applications with robust APIs.
• Backend API design and scalable services.
• Frontend experience with React/Next.js or similar.
• Experience integrating AI/LLM capabilities into software products.
• Familiarity with RAG pipelines, vector stores, prompt engineering.
• Experience with cloud deployments and CI/CD practices.
• Strong testing, version control, and security practices.

Responsibilities

• Design, build, and ship full-stack applications from user interface to backend services.
• Develop AI-enabled features using LLMs, RAG, tool‑use agents, and orchestration frameworks.
• Integrate AI capabilities into existing enterprise platforms, workflows, and data systems.
• Build secure, scalable APIs and services to support AI‑powered applications.
• Collaborate with product, platform, and security teams to deliver compliant, mission‑ready solutions.
• Use agentic coding workflows (e.g., Claude Code, Gemini Code Assist, Codex) to accelerate development.
• Contribute to engineering standards for AI quality, observability, and responsible deployment.

Skills

Full-stack development

Backend (Node.js, Python, Java)

Frontend (React/Next.js)

AI/LLM integration

Cloud deployments (AWS/Azure/GCP)

API design

Tools

LangChain

LlamaIndex

Semantic Kernel

Agent runtimes

Job description

LMI, headquartered in Tysons, Virginia, seeks an AI Full-Stack Engineer to design and deliver end-to-end software that blends frontend, backend, and AI components. You will work across product, platform, and security teams to build mission-ready, compliant solutions for federal-style workloads.

You will leverage AI capabilities, LLMs, and RAG workflows to accelerate delivery while maintaining security, reliability, and observability.