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Leidos

Builds technology for defense and civil agencies

Agentic AI Developer

AI Application EngineeringConfirmed live in the last 24 hours
Full-time$69.5k - $125.7kIn-person

About the Job

Requirements

  • A bachelor's degree in Computer Science, Artificial Intelligence, Software Engineering, or a related field, or equivalent experience.
  • At least 3 years of software development experience.
  • Strong Python development experience.
  • Experience developing applications with large language models.
  • Experience building AI applications using LangChain.
  • Experience with AI observability and tracing tools such as Langfuse.
  • Experience developing conversational AI interfaces using Chainlit.
  • Experience with containerization technologies such as Docker.
  • Experience managing repositories and CI/CD workflows using GitLab.
  • Familiarity with REST APIs, vector databases, and modern backend architectures.
  • Strong understanding of prompt engineering, retrieval-augmented generation pipelines, and agent orchestration concepts.
  • Strong communication and problem-solving skills.

Responsibilities

  • Design and develop autonomous AI agents capable of reasoning, planning, and executing tasks independently.
  • Build and orchestrate multi-agent workflows using modern AI frameworks and tooling.
  • Develop AI-enabled applications using large language models and retrieval-augmented generation architectures.
  • Integrate AI agents with APIs, databases, enterprise systems, and external services.
  • Build conversational and human-in-the-loop interfaces for AI systems.
  • Develop observability, tracing, and evaluation pipelines for AI workflows and agent performance.
  • Containerize and deploy AI applications using Docker-based infrastructure.
  • Collaborate with software engineers, cybersecurity teams, researchers, and stakeholders to deliver scalable AI capabilities.
  • Maintain CI/CD pipelines and source control workflows using GitLab.
  • Optimize prompts, memory systems, context handling, and agent decision-making.
  • Research and prototype emerging agentic AI techniques and frameworks.

Desired Qualifications

  • Experience designing multi-agent systems and autonomous workflows.
  • Familiarity with vector databases and embedding technologies.
  • Experience deploying AI services in cloud or hybrid environments.
  • Knowledge of AI safety, governance, and observability best practices.
  • Experience working in cybersecurity, defense, research, or mission-focused environments.
  • Active security clearance or eligibility to obtain one, if applicable.

About the Company

Leidos

Builds technology for defense and civil agencies

Leidos develops technology and runs services for defense, intelligence and civilian agencies, as well as healthcare and commercial customers. It combines software and engineering work with systems integration, building secure networks and equipment used in demanding operations. Its portfolio includes medical services, energy infrastructure design and technology that supports military missions, linking specialist businesses under one parent. Customers pay through contracts for delivered systems and services, with payment tied to labor, costs or agreed project milestones. Leidos traces its roots to a company founded in 1969 and is headquartered in Reston, Virginia.

Company size
10,001+
Company stage
IPO
Headquarters
Reston, VA
Founded
1969

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