We're looking for a talented and motivated individual to join our team as an AI Engineer. In this role, you'll have the opportunity to work on cutting-edge projects that combine generative AI, agentic systems, machine learning (ML), Large Language Models (LLMs), and prompt engineering to drive innovation. You'll be responsible for designing, developing, and deploying complex solutions in distributed and cloud environments, working with large datasets and text-based data to create innovative technical solutions.
This role is fully remote. On an exception basis may be required to come in once a quarter for planning purposes to Washington, DC.
Please confirm that you are a US Citizen only and understand a public trust clearance is needed for the role.
Responsibilities:
Build and deploy agentic AI systems capable of autonomous decision-making, tool use, and multi-step task execution
Implement end-to-end AI/ML and GenAI projects, from understanding business needs to data preparation, model development, deployment and monitoring
Develop LLM-based features such as retrieval-augmented generation (RAG) with citations, text summarization, and embedding pipelines
Design and optimize prompts using prompt engineering techniques for LLMs to achieve desired outcomes
Work with Large Language Models (LLMs) such as Claude, GPT, Gemini, Llama, etc. via APIs or cloud AI platforms to develop solutions for specific tasks
Evaluate and test GenAI features: building test sets, grounding and citation checks, LLM-as-judge scoring, and production quality monitoring
Design, develop, and optimize machine learning models using Python
Deploy and manage solutions in distributed and cloud environments
Collaborate with cross-functional teams to guide business decisions
Job Requirements:
Bachelor's/Master's degree in CS, Data Science, Engineering, or Mathematics field
2+ years of hands-on AI/ML engineering experience, including demonstrable LLM application work
Experience building agentic AI systems (agents with tool/function calling, planning or task decomposition, and multi-step execution), or strong working knowledge of agent architectures and frameworks such as LangGraph, CrewAI, Strands, or AutoGen
Working knowledge of the modern LLM stack: prompt engineering, RAG, embeddings, and structured outputs
Experience in one or more areas of machine learning / artificial intelligence such as classification, clustering, anomaly detection, sentiment analysis, and NLP problems such as text categorization, topic modeling, entity extraction, and text summarization
Ability to think critically about AI or ML system design, including model selection, tradeoffs, and real-world deployment considerations
Experience evaluating AI/ML systems: testing, measuring accuracy, and catching hallucinations
Programming experience using Python and iPython notebooks; good SQL skills
Excellent communication skills to communicate with wide technical and business users
Demonstrate ability to quickly learn new tools and paradigms to deploy cutting edge solutions
Adept at simultaneously working on multiple projects, meeting deadlines, and managing expectations
Preferred Skills:
Experience with prompt engineering techniques such as few-shot learning, zero-shot learning, and chain-of-thought prompting
Experience with cloud platforms (AWS or Azure) and their AI/ML services such as AWS Bedrock, AWS SageMaker, Azure OpenAI, or Azure AI Foundry, and core services such as S3 and Lambda functions
Experience in using deep learning frameworks such as PyTorch or Keras, etc.
Experience in MLOps to operationalize the model building process and monitor models in production
Familiarity with search and vector retrieval such as Elasticsearch, Solr, or vector databases
Familiarity with version control systems, specifically Git, and experience with platforms like Azure DevOps
Familiarity with Linux and cloud CLI tools
Experience creating interactive data visualizations and dashboards in Tableau, Power BI, or other tools
Experience with distributed NoSQL databases such as MongoDB, DynamoDB, etc.
Ability to build full stack systems architected for speed and distributed computing
If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.
Original Posting:September 16, 2026For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.
The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.
Skills Required
- Bachelor's or master's degree in computer science, data science, engineering, mathematics, or a related field
- 2+ years of hands-on AI/ML engineering experience, including LLM application work
- Experience building agentic AI systems or strong knowledge of agent architectures and frameworks
- Working knowledge of prompt engineering, RAG, embeddings, and structured outputs
- Experience with machine learning or artificial intelligence techniques, including NLP
- Ability to evaluate AI/ML systems, measure accuracy, and identify hallucinations
- Python, iPython notebooks, and good SQL skills
- Strong communication skills with technical and business audiences
- Ability to learn new tools and paradigms quickly
- Ability to manage multiple projects, deadlines, and expectations
- U.S. citizenship
- Ability to obtain or hold a Public Trust clearance
- Few-shot, zero-shot, and chain-of-thought prompting experience
- Experience with AWS or Azure cloud platforms and AI/ML services
- Experience with PyTorch, Keras, or other deep learning frameworks
- MLOps experience
- Search, vector retrieval, or vector database experience
- Git and Azure DevOps experience
- Linux and cloud CLI familiarity
- Experience creating dashboards or interactive visualizations
- Experience with distributed NoSQL databases
- Ability to build full-stack systems for distributed computing
Leidos Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Leidos and has not been reviewed or approved by Leidos.
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Healthcare Strength — Healthcare coverage is described as comprehensive, with multiple plan options, low office-visit copays in some plans, and access to mental health and wellness support tools. The availability of HSA/FSA options and employer contributions is positioned as a meaningful part of the total package.
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Retirement Support — Retirement benefits are framed as a strong component of total rewards, highlighted by a 401(k) match and immediate vesting in the standard package. The Employee Stock Purchase Plan is also presented as an additional long-term wealth-building feature.
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Wellbeing & Lifestyle Benefits — Wellbeing and lifestyle supports extend beyond core insurance, including wellness programs, fitness-related stipends, and assistance resources. Work flexibility and related perks are also included as part of the broader rewards experience.
Leidos Insights
What We Do
We Are Leidos For 50 years we have been tackling some of the biggest problems that face our nation and our world. OUR MISSION Through our culture of innovation and history of performance, we develop deep customer trust built on integrity and create enduring solutions that improve our world. Leidos is a science and technology solutions leader working to address some of the world’s toughest challenges in the defense, intelligence, homeland security, civil, and healthcare markets. The company’s 43,000 employees support vital missions for government and commercial customers. Headquartered in Reston, Va., Leidos reported annual revenues of approximately $11.09 billion for the fiscal year ended January 3, 2020. Leidos was cited for the meaningful work employees perform that is challenging, impactful, and aligned with our customers’ missions as reasons professionals want to work and stay at our company. Leidos has also been named to lists including Forbes’ Best Employers for Diversity, Forbes’ America’s Best Employers for Women, Military Times Best for Vets Employers, and Ethisphere Institute’s World's Most Ethical Companies®. Employees enjoy career enrichment opportunities available through mobility and development and experience rewarding relationships with supportive supervisors and talented colleagues and customers. Employees appreciate our flexible work environment, allowing for and encouraging a true work-life balance. Our professionals are also excited about our Employee Resource Groups, like the newly launched Collaborative Outreach with Remote and Embedded Employees (CORE), which strives to create an environment where every employee, regardless of location, feels fully engaged as a valued employee of Leidos. Your most important work is ahead.
