$10,000/yr

Senior AI Engineer

USUS·Shirlingtonsenior
Machine Learning EngineerData
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Quick Summary

Requirements Summary

Secret clearance required with eligibility for TS/SCI. Location: Shirlington, VA Required Qualifications Bachelor's degree in Computer Science, Software Engineering, Computer Engineering,

Technical Tools
Machine Learning EngineerData

Expression is seeking experienced Senior AI Engineers to design, develop, integrate, and evaluate advanced Artificial Intelligence (AI) and Large Language Model (LLM) capabilities supporting the Department of Homeland Security (DHS).

This position will support the implementation of secure, mission-focused AI applications within the DHS AI environment. The Senior AI Engineers will develop and integrate multi-agent AI workflows, retrieval-augmented generation (RAG), intelligent document-processing capabilities, and AI evaluation frameworks to support investigative analysis, information retrieval, report generation, and human decision support.

We are seeking hands-on engineers with expertise in one or more of three technical areas:

  • Multi-agent orchestration and model integration
  • RAG and AI-powered application development
  • AI assurance, evaluation, and observability

The ideal candidate has a strong software engineering foundation, experience delivering enterprise AI applications, and the ability to translate complex technical requirements into secure, reliable, maintainable software. You will collaborate with AI architects, data engineers, and Government stakeholders to build, test, and improve production-quality AI capabilities within an established enterprise environment.

Responsibilities

~1 min read

Expression offers competitive salaries and benefits, such as:

  • →401k matching
  • →PPO and HDHP medical/dental/vision insurance
  • →Education reimbursement up to $10,000/yr
  • →Complimentary life insurance
  • →Generous PTO and 11 days of holiday leave
  • →Commuter Benefits Plan

Founded in 1997 and headquartered in Washington DC, Expression provides data fusion, data analytics, AI/ML, software engineering, information technology, and electromagnetic spectrum management solutions to the U.S. Department of Defense, Department of State, and national security community. Expression’s culture focuses on creating immediate and sustainable value for our clients via agile delivery of tailored solutions built through constant engagement with our clients. Expression was ranked #1 on the Washington Technology 2018's Fast 50 list of fastest-growing small business Government contractors and a Top 20 Big Data Solutions Provider by CIO Review.

We make sure to provide everyone with the tools and opportunities to grow while working on some of the newest technologies in the industry. We get excited about celebrating our professionals' milestones, accomplishments, promotions, overcoming challenges, and many other aspects that make an engaging collaborative environment.

Equal Opportunity Employer/Veterans/Disabled
Expression is an Equal Opportunity Employer. If you require a reasonable accommodation during the application or interview process, please submit your request to our Human Resources department through the application portal.

Location & Eligibility

Where is the job
Shirlington, US
On-site at the office

About this job

Pay per year
$10,000 a year
95% below the $208,575 median for Machine Learning Engineer jobs on Jobera (1,021 salaries).
Posted
Today
Employer
has 20 open jobs on Jobera.

Listing Details

Posted
November 11, 2026
First seen
November 11, 2026
Last seen
November 11, 2026

Posting Health

Days active
0
Repost count
0
Trust Level
71%
Scored at
November 11, 2026

Signal breakdown

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Senior AI Engineer$10,000/yr