Jobs in the United States

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Fraud Analytics Engineer
Experian
United States
- $103,669 to $179,693 USD / year
We're looking for an Analytics Engineer that operates at the intersection of data engineering, infrastructure, and machine learning.
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Electrical Vehicle Prototype Development Engineer
ALTEN Technology USA
Long Beach, CA · Irvine, CA
…advancing space exploration and life-saving medical devices to building autonomous electric vehicles. With 3,000+ experts across North America, we partner with leading companies in…
Added 2 mins ago
Counter Sales Representative
US LBM Service Co
Socorro, NM
Must possess good mathematic skills
Added 4 mins ago
Principal HVAC Engineer
Worley
Houston, TX · Houston
…stringent codes, NFPA standards, including but not limited to building heating, ventilating and air conditioning systems, as well as related fire alarm and fire suppression systems and gas…
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 5 mins ago
Facilities Support Specialist - Huntsville
Auburn University
Auburn University, AL
…University facilities in Huntsville. The position assists the Campus Engineer with the oversight of facility operations, routine and preventive maintenance, capital improvement activities,…
Added 6 mins ago
Sr. Software Engineer, Pretraining Data
SpaceXAI
Palo Alto, CA
SpaceXSI is building Super Intelligence to help humanity understand the universe. Our teams are building the full Super Intelligence stack: from our Colossus supercomputers, to Grok models,…
Added 6 mins ago
HIL System Engineer
Ford
Dearborn, MI · Dearborn
We are seeking a hands-on HIL System Engineer to support the development, integration, and validation of vehicle systems and features. In this role, you will help create and maintain…
Added 6 mins ago
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Founding Full-Stack Engineer
True Talent Solutions Partners
San Francisco, CA
- $180,000 to $240,000 USD / year
On-site in San Francisco, with a minimum of five days per week on-site.
Added 6 mins ago
TT
Founding Forward Deployed Engineer
True Talent Solutions Partners
New York, NY
- $180,000 to $250,000 USD / year
On-site, five days per week in New York, New York, United States.
Added 6 mins ago
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Senior Data Engineer
UnitedHealth Group
Eden Prairie, MN
- $91,700 to $163,700 USD / year
…every role in the company, each position has a requirement for building quality into every output. This also includes evaluating new tools, new techniques, strategies; Automation of common…
Added 8 mins ago
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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 10 mins ago
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Senior AI Engineer
Expression
Shirlington, VA
- $180,000 to $210,000 USD / year
Demonstrated experience building, deploying, or evaluating LLM-powered and generative AI solutions in enterprise or production-oriented environments, with direct responsibility for…
Added 13 mins ago
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Stationary Engineer
Sequoia Hospital
REDWOOD CITY, CA
- $76.5 USD / hour
As a Stationary Engineer, you will be a central figure responsible for the safe and efficient operation, maintenance, and repair of our facility's critical mechanical and electrical…
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 15 mins ago
Head of Data Engineering
Texas Instruments
Dallas, TX
As part of the Data & Agentic Platforms and Solutions (DAPS) organization, this leader will be responsible for building and scaling a modern, reliable, secure, and reusable data ecosystem…
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 15 mins ago
Quality Engineer 2
M.C. Dean, Inc
Richmond, VA
M.C. Dean is Building Intelligence®. We design, build, operate, and maintain cyber-physical solutions for the nation’s most recognizable mission critical facilities, secure environments,…
Added 15 mins ago
O&M Network Specialist 4 (Tech Specialist 4)
M.C. Dean, Inc
Springfield, VA
Must hold a valid driver’s license and ability to obtain a passport for international travel
Added 15 mins ago
Commissioning Engineer Staff
M.C. Dean, Inc
Fort Worth, TX
Applicants selected must have minimum Bachelor’s degree in Engineering with minimum 2+ years of relevant electrical experience
Added 16 mins ago
Desktop Support Engineer (Level 2)
NSC Global
Chicago, IL
NSC Global is currently looking for a Desktop Support Engineer to join our growing company.
Added 17 mins ago
Principal Engineer, FPGA Architecture
Samsung Semiconductor
Folsom, CA
…empowering people to be their true selves. Together, we’re building a better tomorrow for our employees, customers, partners, and…
Added 17 mins ago
Staff Security Engineer, Product Security
Flexport
San Francisco, CA
Partner with engineering leadership to resolve the design tradeoffs that a senior engineer would escalate.
Added 17 mins ago
Staff Security Engineer, Product Security
Flexport
Remote, United States
Partner with engineering leadership to resolve the design tradeoffs that a senior engineer would escalate.

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