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.
Added just now
Electrical Vehicle Prototype Development Engineer
ALTEN Technology USA
Long Beach, CA · Irvine, CA
…integration issues. Collect diagnostic evidence, isolate affected systems, resolve technical roadblocks, and coordinate specialized engineering support when…
Added 1 min ago
Senior Manager, CMC Regulatory Affairs
AbCellera
CA · San Francisco, CA
…pre-filled syringes, auto-injectors, and other drug-device delivery systems, with a strong understanding of associated regulatory documentation…
Added 1 min ago
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Senior CMC Regulatory Affairs Manager
AbCellera
San Francisco, CA
- $150,000 to $180,000 CAD / year
…pre-filled syringes, auto-injectors, and other drug-device delivery systems, with a strong understanding of associated regulatory documentation…
Added 1 min ago
Senior CMC Regulatory Affairs Manager
AbCellera
San Francisco, CA
…pre-filled syringes, auto-injectors, and other drug-device delivery systems, with a strong understanding of associated regulatory documentation…
Added 1 min ago
Chief Information Security Officer (CISO)
Credit Acceptance Corporation
WA · MI · CA
Define how AI agents are secured, with Engineering's architecture and platform leaders. Each agent is a first-class identity with least-privilege access. Govern how agents call tools and…
Added 2 mins ago
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Chemical R&D Internship (Winter / Summer / Co-op)
Ammobia
San Francisco, CA
- $30 to $45 USD / hour
…will work at the intersection of materials science, reaction engineering, process development, data science, and controls, helping advance our technology from laboratory experiments to…
Added 2 mins ago
Head of Artificial Intelligence
Space Dinosaurs
Remote, United States
Strong software engineering skills, including independently designing, developing, reviewing, and operating production code and data-intensive systems.
Added 3 mins ago
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Senior Technical Recruiter, Murdock
Beacon AI
San Carlos, CA
- $137,000 to $195,000 USD / year
This is a hybrid role based in San Carlos, CA, with 3+ days per week onsite and the option to work remotely on remaining days
Added 3 mins ago
Battery Modeling and Algorithm Engineer
Apple
Cupertino, CA
…limits of what’s considered feasible? As part of our Battery Engineering group, you’ll help craft creative battery algorithm and modeling solutions that deliver more energy in smaller…
Added 3 mins ago
Camera Optical Illumination Engineer
Apple
Cupertino, CA
The Camera Hardware Engineering group is responsible for all research, design, development, test and qualification of camera hardware for Apple products. The team is looking for an Optical…
Added 3 mins ago
Manager, Product Management - Data Innovation and Data Products
Capital One
McLean, VA · Charlotte, NC · Richmond, VA
…Research, Analytics, Mathematics, Computer Science, Computer Engineering, Software Engineering, Mechanical Engineering, Information Systems or a related quantitative field), Business or…
Added 4 mins ago
Principal HVAC Engineer
Worley
Houston, TX · Houston
Perform a wide variety of difficult and highly complex HVAC engineering, design, analysis, or other technical tasks utilizing current technology and available standards, templates, and…
Added 4 mins ago
Producer
Scopely
United States
Comfort working hands-on with modern game engines, development tools, project-management systems, and release pipelines.
Added 4 mins ago
Principal Technical program Manager, WorkSpaces Applications
Amazon Development Center U.S., Inc.
Seattle, WA
…about how our Customers will derive value, and enable your peer Engineering, Product and Go To Market teams to see and realize the profitable future. You bring clarity to ambiguity, and…
Added 4 mins ago
Software Development Engineer, Billing Data Services, Billing Data Services
Amazon Web Services, Inc.
Seattle, WA
…Services (BiDS) team, you will build and operate the foundational systems that capture, store, and serve the billing facts that AWS billing services rely…
Added 4 mins ago
Software Development Engineer, US Amazon Dedicated Cloud Security
Amazon.com Services LLC
Herndon, VA
AWS Security is looking for a driven professional to join its US ADC Security Engineering team to support the development of tools and automation in support of Amazon Dedicated Clouds…
Added 4 mins ago
Software Development Engineer, US Amazon Dedicated Cloud Security
Amazon.com Services LLC
Herndon, VA
AWS Security is looking for a driven professional to join its US ADC Security Engineering team to support the development of tools and automation in support of Amazon Dedicated Clouds…
Added 4 mins ago
Mechanical Designer
Actalent
Valencia, CA
…and documentation of mechanical components, assemblies, and systems. In this role, you will collaborate closely with mechanical engineers, manufacturing, and other technical team members to…
Added 4 mins ago
Test Engineer
Actalent
Orange, CA
Collaborate with mechanical, electrical, firmware, software, and systems engineering teams.
Added 4 mins ago
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Electrical Engineer
Actalent
Gilbert, AZ
- $53 to $75 USD / hour
…designing, developing, analyzing, and documenting electrical systems, subsystems, and components for aerospace and defense applications. You will work across the full product lifecyclefrom…
Added 4 mins ago
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Manufacturing Technician
Actalent
Saint Paul, MN
- $52,000 to $62,400 USD / year
Perform basic technical tasks to assist engineers with electronic and mechanical systems and continuous improvement activities.
Added 4 mins ago
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Project Manager
Actalent
Aurora, CO
- $48 to $65 USD / hour
Primarily office-based with a hybrid schedule, including 1 remote day per week
Added 5 mins ago
Engineer in Charge Senior
Clean Tech, Inc.
Hillsboro, OR
…and cross-functional project leadership related to abatement systems. Reporting directly to the Engineer in Charge Manager, this role demands strategic problem-solving, mentorship of junior…
Added 5 mins ago
Market Readiness Lead
INCRC ABB Global Industries and Services Private Limited
OH
Bachelor's degree in Engineering or an equivalent qualification.

Expression

Senior Data Engineer

Shirlington, VA, United States

$180,000 to $200,000 USD / year

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Job details

Pay: $180,000 to $200,000 USD / year
Posting language: English
Posted: Nov 11, 2026

Original job description

Expression is seeking an experienced Senior Data Engineer to design, develop, and integrate secure enterprise data services supporting advanced Artificial Intelligence (AI) and Large Language Model (LLM) capabilities for the Department of Homeland Security (DHS). This position will support the development of secure, mission-focused AI applications within the Government's existing AI environment. The Senior Data Engineer will be responsible for implementing governed data integrations with enterprise platforms, including Palantir, Databricks, and Elasticsearch, enabling AI agents and retrieval-augmented generation (RAG) workflows to securely access, process, and reference authorized information. The ideal candidate is a hands-on data engineer with extensive experience in enterprise data integration, API development, data modeling, and secure data access. You are comfortable working across complex data ecosystems, developing scalable integration services, troubleshooting data quality and performance issues, and collaborating with AI engineers to deliver reliable, source-grounded AI applications. This role requires strong SQL and Python development skills, experience integrating structured and unstructured enterprise data, and an understanding of data governance, access controls, and data lineage. You will work closely with AI architects, AI engineers, platform owners, and Government stakeholders to ensure AI applications have reliable, permission-aware access to trusted enterprise data. Security Clearance: Secret clearance required with eligibility for TS/SCI. Location: Shirlington, VA

Key Responsibilities

Design, develop, and maintain secure enterprise data integrations connecting Government-approved data platforms with AI applications and agentic AI workflows within the existing AI environment.
Develop and integrate APIs, data connectors, and retrieval services for Palantir, Databricks, Elasticsearch, and other authorized enterprise data sources.
Implement data access and retrieval capabilities supporting structured, semi-structured, and unstructured data, including records, documents, relationships, and analytical data products.
Design and maintain schema mappings, data transformations, and context-preparation processes to support retrieval-augmented generation (RAG), intelligent search, AI-assisted document generation, and source-grounded analytical workflows.
Implement secure, permission-aware data access controls, including authentication, authorization, identity propagation, case-purpose restrictions, and source-level permissions.
Ensure data provenance, lineage, and traceability by preserving source identifiers, timestamps, metadata, access restrictions, and document references throughout data retrieval and AI processing workflows.
Develop data validation, quality checks, and consistency controls to identify missing, stale, malformed, conflicting, or unauthorized records before they are consumed by downstream AI applications.
Optimize data retrieval and API performance, including query efficiency, response latency, and reliable access to enterprise data services.
Collaborate with AI engineers to integrate authorized data into LLM and RAG workflows, ensuring generated outputs can be traced to supporting source records and comply with established access controls.
Design and implement automated unit, integration, and regression tests for data connectors, APIs, schema mappings, data quality, and authorization boundaries.
Implement secure error handling, audit logging, and observability to monitor data integration performance, troubleshoot failures, and support operational reliability.
Support controlled data synchronization and approved write-back operations where authorized, including input validation, human approval requirements, and safeguards against duplicate or unauthorized updates.
Collaborate with enterprise platform owners, cybersecurity teams, and Government stakeholders to define interface specifications, resolve integration challenges, and maintain compliance with approved data governance requirements.
Produce and maintain interface control documents, data-flow diagrams, schema mappings, API specifications, test results, operational runbooks, and technical documentation.
Support CI/CD integration, configuration management, software releases, and regression testing as enterprise data schemas, interfaces, or access requirements evolve.
Participate in technical design reviews, code reviews, engineering planning, and cross-functional troubleshooting activities.
Support technical demonstrations, prototype evaluations, Government acceptance testing, and operational pilot deployments.

Required Qualifications

Bachelor's degree in Computer Science, Information Systems, Data Engineering, Software Engineering, Data Science, or a related technical field, or equivalent relevant professional experience.
7+ years of professional experience in data engineering, software engineering, or enterprise data integration, including 3+ years of hands-on experience developing enterprise data pipelines, APIs, or governed data services.
Strong SQL and Python programming skills, including data querying, transformation, API integration, scripting, debugging, and automated testing.
Demonstrated experience designing, developing, and maintaining enterprise data integrations, including RESTful APIs, data connectors, schema mappings, and secure data exchange between applications.
Hands-on experience integrating with at least one of the following platforms: Palantir, Databricks, or Elasticsearch, including working with platform APIs, data access mechanisms, or query interfaces.
Experience working with structured, semi-structured, and unstructured enterprise data, including data modeling, schema management, data transformation, and retrieval optimization.
Experience implementing secure, permission-aware data access, including authentication, authorization, identity propagation, sensitive-data handling, and source-level access restrictions.
Demonstrated experience implementing data quality, validation, lineage, and traceability controls to ensure the accuracy, consistency, and reliability of enterprise data integrations.
Experience developing data retrieval services or pipelines supporting analytics, intelligent search, AI applications, or retrieval-augmented generation (RAG) workflows.
Experience troubleshooting complex data integration issues, including API failures, schema inconsistencies, query performance, authorization errors, and data quality problems.
Experience with modern software engineering and delivery practices, including Git, code reviews, CI/CD pipelines, automated testing, and configuration management.
Ability to translate technical and data governance requirements into secure integration designs, data contracts, test cases, and engineering documentation.
Strong written and verbal communication skills, including the ability to collaborate with AI engineers, software developers, enterprise platform owners, and Government stakeholders.

Preferred Qualifications

Hands-on integration experience with two or more of the following platforms: Palantir, Databricks, and Elasticsearch.
Experience with Palantir data objects, relationships, APIs, or governed data-access capabilities.
Experience with Databricks data products, SQL query services, data governance, lineage, or managed analytical datasets.
Experience with Elasticsearch query APIs, index/alias management, document retrieval, and field-level access restrictions.
Experience implementing RAG data pipelines, semantic or vector retrieval, document parsing, embeddings, and context preparation for LLM-powered applications.
Experience supporting AI/ML or generative AI applications that require secure retrieval of enterprise data, source attribution, and permission-aware context assembly.
Experience with cloud-native data engineering and containerized applications using AWS, Azure, Docker, Kubernetes, or comparable technologies.
Familiarity with Infrastructure as Code, DevSecOps practices, and automated deployment pipelines.
Experience implementing controlled data synchronization, incremental updates, audit logging, and approved write-back operations across enterprise systems.
Experience supporting Federal Government, Department of Defense, Intelligence Community, Department of Homeland Security, or similarly regulated data environments.
Familiarity with Government cybersecurity, privacy, data governance, access control, and software authorization requirements.
Experience supporting technical demonstrations, Government acceptance testing, operational pilots, or production data integration 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