Jobs in the United States

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Added 4 mins ago
Principal Engineer, Cloud Software
LI-COR
United States
The Principal Engineer, Cloud Software provides technical direction and hands-on engineering for LI-COR Environmental's connected products and cloud platforms. This individual contributor…
Added 5 mins ago
Software Engineer- AI, Autonomy and Platform Development
LEIDOS, INC.
Reston, VA · Huntsville, AL · San Diego, CA
Software Engineer – AI, Autonomy & Platform Development
Added 9 mins ago
Electrical Systems Engineer
Northrop Grumman
Stafford
Northrop Grumman Defense Systems is seeking an Electrical Systems Engineer to work for our Whisper program at a government customer site in Stafford, Virginia.
Added 10 mins ago
E
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.
Added 19 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 20 mins ago
E
Senior Data Engineer
Expression
Shirlington, VA
- $180,000 to $200,000 USD / year
Expression is seeking an experienced Senior Data Engineer to design, develop, and integrate secure enterprise data services supporting advanced Artificial Intelligence (AI) and Large…
Added 20 mins ago
E
Senior AI Engineer
Expression
Shirlington, VA
- $180,000 to $210,000 USD / year
Added 25 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 33 mins ago
VG
R&D Embedded Software Engineer
Veralto Global
Loveland, CO
- $95,000 to $105,000 USD / year
Added 36 mins ago
Senior Software Engineer, Elixir
PDQ
Remote, United States
PDQ is seeking a Senior Software Engineer to help build and scale intelligent, autonomous systems that transform how users interact with our products. In this role, you will develop…
Added 36 mins ago
Technical Product Owner
Meijer Great Lakes LP
MI
Work with the Principal Engineer and architecture partners to ensure solutions align with domain architecture, reusable engineering patterns, data standards, security controls, and…
Added 37 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 41 mins ago
Solution Architect, Agent & Software Testing
Tonic AI
Remote, United States
…understand the issue well enough to explain it clearly to the engineer who…
Added 49 mins ago
T
Sr. Oracle Cloud DBA
TEKsystems
Minneapolis, MN
- $120,000 to $150,000 USD / year
DescriptionJob SummaryThe Cloud Database Engineer provides operational database services across both cloud (AWS) and on-premises environments, ensuring seamless data flow by designing and…
Added 50 mins ago
Spacecraft Software Simulation & Test Engineer - Millennium Space Systems
Millennium Space Systems
El Segundo, CA
As a Software Test Engineer, you will support the Flight Software Team in analyzing, designing, and testing of software products for Millennium Space Systems. This position will review…
Added 51 mins ago
Staff SW QA Engineer
DexCom Inc
Remote, United States
Added 57 mins ago
Reliability Engineer
ServiceNow
Santa Clara, CA
It all started when engineer Fred Luddy wrote code that automated a tedious task for his coworker, Phyllis. She cried tears of joy. That moment inspired Fred to build a company that could…
Added 57 mins ago
Staff Site Reliability Engineer - Federal
ServiceNow
Santa Clara, CA
It all started when engineer Fred Luddy wrote code that automated a tedious task for his coworker, Phyllis. She cried tears of joy. That moment inspired Fred to build a company that could…
Added 58 mins ago
Software Engineer
Autodesk Inc.
Novi, MI
Software Engineer, AI & Fusion Engineering (Entry Level)
Added 1 hour ago
PP
Senior Windows Systems Engineer
Pivot Point Solutions
Oakland, CA
- $50 to $76 USD / hour
Pivot Point Solutions is seeking an experienced Senior Windows Systems Engineer to support enterprise Windows infrastructure, operating system engineering, endpoint management and…
Added 1 hour ago
A
Sr. Dev Ops Engineer
Astrolab
Remote, United States
- $155,000 to $195,000 USD / year
Astrolab is seeking an experienced Sr. Dev Ops Engineer to stand up infrastructure to support safety critical software development and testing. As a Senior Dev Ops Engineer at Astrolab, you…
Added 1 hour ago
Principal Software Engineer (AI)
American Bankers Insurance Company of Florida
United States
Assurant is hiring a Principal Software Engineer to lead the technical direction of Elita in an agent-driven engineering environment. We are a Claude Code shop: the work is driven by Claude…
Added 1 hour ago
Senior Software Engineer (United States)
Karat
Remote, United States
As a Senior Software Engineer at Karat, you’ll build full-stack product features that directly improve how engineers are interviewed and how engineering organizations operate. You'll build…
Added 1 hour ago
Lead, Application Security Engineering
The Northern Trust Company
Tempe, AZ
The Lead, Application Security Engineering will help engineer, run, and continuously improve the technical capabilities that support Northern Trust’s Application Security program.
Added 1 hour ago
RH
AWS Senior Data Engineer
Robert Half
Torrance, CA
- $70 to $76 USD / hour
We are looking for an AWS Senior Data Engineer to join a long-term contract opportunity in Southern California. This onsite role requires a highly experienced data engineering specialist…

Expression

Senior AI Engineer

Shirlington, VA, United States

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

Apply on expression-networks.breezy.hr About employer

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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