Jobs in the United States

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Electrical Vehicle Prototype Development Engineer
ALTEN Technology USA
Long Beach, CA · Irvine, CA
As a Prototype Development Engineer, you will support the development, configuration, commissioning, maintenance, and test readiness of advanced Labcars, HIL benches, and related prototype…
Added 4 mins ago
Software Development Engineer, US Amazon Dedicated Cloud Security
Amazon.com Services LLC
Herndon, VA
As a Software Development Engineer (SDE), you will be responsible for the development, operations, and overall health and security of the critical services we support, providing excellent…
Added 4 mins ago
Software Development Engineer, US Amazon Dedicated Cloud Security
Amazon.com Services LLC
Herndon, VA
As a Software Development Engineer (SDE), you will be responsible for the development, operations, and overall health and security of the critical services we support, providing excellent…
Added 4 mins ago
Test Engineer
Actalent
Orange, CA
Job Title: Test EngineerJob DescriptionThe Test Engineer will play a pivotal role in the development and validation of new electromechanical products throughout the product development…
Added 6 mins ago
HIL System Engineer
Ford
Dearborn, MI · Dearborn
You enjoy solving complex problems at the intersection of vehicle systems, embedded software, test hardware, and automation.
Added 8 mins ago
GH
Senior Software Engineer
GE HEALTHCARE
Remote, United States
- $109,600 to $164,400 USD / year
As a Senior Software Engineer in GE HealthCare's Science & Technology organization, you will develop scalable, cloud-based software solutions that support healthcare innovation and digital…
Added 8 mins ago
JA
Senior Engineer Core Infrastructure
JetBlue Airways Corporation
Salt Lake City, UT · Washington, DC · Orlando, FL · Long Island City, NY
- $105,600 to $150,400 USD / year
The Senior Core Infrastructure Engineer – is focused on ensuring the creation and management of Infrastructure including managing operational stability, performance, and cost-efficiency of…
Added 9 mins ago
E
Senior AI Engineer
Expression
Shirlington, VA
- $180,000 to $210,000 USD / year
9+ years of professional experience in software engineering, AI engineering, or AI test automation, including substantial recent hands-on experience developing, integrating, or evaluating…
Added 10 mins ago
Senior Terrestrial Mechanical Design Engineer, Controls
Varda Space Industries
El Segundo, CA
The Senior Mechanical Design Engineer builds bespoke test infrastructure that qualifies spaceflight hardware for orbit. They design, build, and own sophisticated ground support equipment…
Added 10 mins ago
Senior Terrestrial Automation & Controls Engineer
Varda Space Industries
El Segundo, CA
The Senior Automation & Controls Engineer builds bespoke test infrastructure that qualifies spaceflight hardware for orbit. They design, build, and own sophisticated ground support…
Added 14 mins ago
Engineer sr - Corporate and Manufacturing Networking – Global Technology
Starbucks Coffee Company
WA
As a Senior Engineer on the Corporate and Manufacturing Network Engineering team, you will own the design, implementation, and operational health of Starbucks' corporate and manufacturing…
Added 14 mins ago
IT Principal Application Security Engineer (Must Reside in Texas)
Randolph-Brooks Federal Credit Union
United States
All applicants must reside within the state of Texas and have the capability of performing all of the work from their home in Texas · To successfully work from home, employees must have access to a minimum internet connection as noted by RBFCU
Added 14 mins ago
IT Principal SOC Engineer (Must Reside in Texas)
Randolph-Brooks Federal Credit Union
United States
All applicants must reside within the state of Texas and have the capability of performing all of the work from their home in Texas · To successfully work from home, employees must have access to a minimum internet connection as noted by RBFCU
Added 15 mins ago
Head of Data Engineering
Texas Instruments
Dallas, TX
Engineer scalable data solutions using technologies such as Apache Iceberg, Spark, Trino, Databricks, and high-performance analytical databases.
Added 15 mins ago
Equipment Engineer, MTC Clean
Micron Technology, Inc.
Boise, ID
Micron Technology is seeking an Equipment Support Clean Equipment Engineer to support advanced photomask manufacturing within the Mask Technology Center (MTC). This hands-on equipment…
Added 15 mins ago
MD
MATERIAL HANDLER 2
M.C. Dean, Inc
Annapolis Junction, MD
- $25 USD / hour
Must have demonstrated experience and proficiency with intermediate level MS Excel and Outlook
Added 19 mins ago
Engineer, Tooling-CNC Programming
GKN Aerospace Careers
Garden Grove, CA
Added 21 mins ago
Senior Engineer Lead
MillerKnoll, Inc.
Zeeland, MI
Knowledge in the use of common office automation software, applications, and engineering-related software (required).
Added 26 mins ago
System Engineer II
OzarksGo
Fayetteville, AR
Must have valid driver's license without violation, which would prohibit insurability
Added 26 mins ago
Software Engineer - Garmin Health
Garmin International, Inc.
Olathe, KS
We are seeking a full-time Software Engineer - Garmin Health at Garmin's U.S. headquarters in the Greater Kansas City area. As a member of the Garmin Health team, you will develop and…
Added 26 mins ago
Software Engineer - Machine Learning
Garmin International, Inc.
Olathe, KS
We are seeking a full-time Software Engineer at Garmin's U.S. headquarters in the Greater Kansas City area. In this role, you will build the platforms, tooling, and infrastructure that…
Added 29 mins ago
Associate, Optical Engineer
L3Harris Technologies
Herndon, VA · Palm Bay, FL
…tools for calculations, modeling, data analysis, or laboratory automation. Scientific software for quantum-system modeling, laboratory automation, or data acquisition; validation against…
Added 30 mins ago
Controls Engineer – Energy Systems
ALTEN Technology USA
Irvine, CA
The ideal candidate is a hands-on Controls Engineer who is comfortable working both at the algorithm/modeling level and closer to implementation. We are particularly interested in engineers…
Added 30 mins ago
Physical AI Senior Engineer
Toyota
Georgetown, KY
Toyota’s Manufacturing Innovation & Transformation (MIT) – Manufacturing Center of Excellence is looking for a passionate and highly motivated Physical AI Senior Engineer.
Added 31 mins ago
TB
Lead Security Engineer - Threat Modeling
Truist Bank
Charlotte, NC · Atlanta, GA · Greensboro, NC · Orlando, FL · Raleigh, NC · Richmond, VA
- $160,000 to $195,000 USD / year
Extensive experience in software development lifecycle security practices.

Expression

Senior AI Engineer

Shirlington, VA, United States

$180,000 to $210,000 USD / year

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Job details

Pay: $180,000 to $210,000 USD / year
Posting language: English
Posted: Nov 11, 2026

Original job description

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. Security Clearance: Secret clearance required with eligibility for TS/SCI. Location: Shirlington, VA Required Qualifications

Bachelor's degree in Computer Science, Software Engineering, Computer Engineering, Data Science, Artificial Intelligence, or a related technical field, or equivalent relevant professional experience.
9+ years of professional experience in software engineering, AI engineering, or AI test automation, including substantial recent hands-on experience developing, integrating, or evaluating enterprise AI applications.
Demonstrated experience building, deploying, or evaluating LLM-powered and generative AI solutions in enterprise or production-oriented environments, with direct responsibility for implementation rather than solely research, experimentation, or architectural planning.
Strong Python programming and debugging skills, including backend development, RESTful APIs, asynchronous programming, modular application design, and automated testing. Experience with FastAPI, Pydantic, asyncio, or comparable technologies.
Demonstrated hands-on expertise in at least one of the following AI engineering specializations:

•

Multi-Agent Orchestration & Model Integration: Developing multi-agent AI applications using LangGraph, LangChain, Semantic Kernel, AutoGen, or comparable frameworks; implementing model/tool integrations, structured agent handoffs, stateful workflows, prompt management, and bounded execution.
Grounded AI Applications & RAG: Designing and implementing RAG pipelines, document processing, source-grounded generation, prompt/output validation, citation handling, and AI-assisted document generation or human-reviewed workflows.
AI Assurance, Evaluation & Observability: Developing automated LLM evaluation frameworks, regression suites, model reliability tests, adversarial testing, prompt-injection defenses, and application observability capabilities.
Experience integrating AI applications with enterprise data platforms, APIs, or retrieval services, including secure access to structured or unstructured data.
Experience designing and implementing secure AI applications, including authentication, authorization, permission-aware data access, sensitive-data handling, and appropriate human oversight.
Experience with LLM application evaluation and reliability, including response quality, factual grounding, hallucination mitigation, error handling, and model performance measurement.
Experience with modern software engineering practices, including Git, code reviews, CI/CD pipelines, automated testing, and software configuration management.
Experience developing or deploying cloud-native or containerized applications using Docker, AWS, Azure, Kubernetes, or comparable technologies.
Demonstrated ability to translate technical requirements into production-quality AI software components, integration designs, test cases, and engineering documentation.
Strong analytical, troubleshooting, and communication skills, including the ability to collaborate with AI architects, data engineers, and technical stakeholders to resolve complex integration challenges.

Preferred Qualifications

Experience integrating AI applications with Palantir, Databricks, Elasticsearch, or comparable governed enterprise data platforms.
Experience implementing Responder–Evaluator–Reporter architectures, multi-model ensembles, model comparison, or structured AI output verification.
Experience with LLMOps platforms, prompt/model version management, evaluation tooling, and reproducible AI release processes.
Experience supporting Federal Government, Department of Defense, Intelligence Community, Department of Homeland Security, or similarly regulated environments.
Familiarity with Government cybersecurity, privacy, accessibility, data governance, and software authorization requirements.
Experience adapting existing AI algorithms, research prototypes, or software components into operational enterprise applications.
Experience supporting technical demonstrations, Government acceptance testing, operational pilots, or production AI system sustainment.

Benefits:

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

About Expression:

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.

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Jobs in the United States