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78 principal data engineer jobs at 53 companies in Frederick, MD

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Founding Machine Learning / AI Search Engineer
Cupertino, CA, US
$160k-$310k/yr On-SiteFull Time
HiringCafe
HiringCafe: Building a 100× better job search engine to take on Indeed and LinkedIn.
Build the ML and AI search behind HiringCafe — ranking, recommenders, retrieval, and LLM agents that surface jobs people would never find on their own.
Python, PyTorch, Elasticsearch, LLMs
Help us #BeatIndeed & #BeatLinkedIn
2mo
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Principal Data Engineer – Mission Data Pipelines
Reston, Virginia, United States
$200k-$275k/yr HybridFull Time
Galaxia Technologies
Galaxia Technologies: Provides specialized engineering services for national security missions.
9+ YOE9+ years experience with a CS/engineering/IT field; 7+ with a Master’s or 4+ with a PhD; 7+ in DoD/IC environments; strong data pipelines/ETL; JSON/XML/CSV; TS/SCI/SAP access with polygraph.
Apache NiFi, Apache Airflow, Python, Pandas, NumPy, REST
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3w
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Principal Data Engineer
Washington or New York or Austin or Chicago
$215k-$250k/yr RemoteFull Time
Upside
Upside: Personalized cashback rewards platform for everyday brick-and-mortar purchases.
8+ YOE8+ years in data/analytics engineering; hands-on experience with AWS, Snowflake, dbt, Dagster, Databricks, and Terraform; led platform migrations; strong CI/CD, data governance, FinOps, communication, and mentoring skills.
AWS, Snowflake, dbt, Dagster, Databricks, Terraform, CI/CD
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2d
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Principal Data Engineer, People Data
Bellevue or Chicago or San Francisco or Washington
$197k-$271k/yr HybridFull Time
Okta
OktaNASDAQ: OKTA: Provide secure identity management and authentication for enterprises.
10+ YOE10+ years data engineering experience; expert SQL, ETL/ELT, MPP databases, AWS services; HR/People data experience; experience with batch and realtime pipelines, lakehouse architectures, and data quality frameworks.
SQL, Airflow, dbt, Snowflake, Redshift, Amazon S3, AWS Lambda, EMR, ECR, EKS, Workday, Spark, Kafka, Databricks, Iceberg, Delta
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1mo
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Principal Consultant, Data Engineer
Arlington or Chicago or Remote
$150k-$170k/yr RemoteFull Time
Lovelytics
Lovelytics: A data analytics consulting firm delivering data warehousing, ETL, and SAP integrations for enterprise clients.
3+ YOE5+ years data engineering, ETL, data warehousing; SAP data experience; Databricks; cloud (AWS/Azure); client-facing; strong communication.
Databricks, AWS, Azure, ETL, ELT, SAP, S/4HANA, SAP HANA
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2mo
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Principal Data Engineering - Remote
Minneapolis or Washington
$113k-$193k/yr RemoteFull Time
UnitedHealth Group
UnitedHealth GroupNYSE: UNH: Provides health insurance and technology-enabled health care services.
8+ YOESenior data engineer designing and building cloud-based data platforms and pipelines; 8+ years of experience; hands-on with cloud platforms; SQL/Python; ETL/ELT; data warehousing; CI/CD; security/compliance.
GCP, AWS, Azure, Databricks, Snowflake, Terraform, DBT, Great Expectations, Cloud Storage
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1mo
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Principal Software/Data Engineer
Laurel, Maryland, United States
OnsiteFull Time
Themis Insight
Themis Insight: Provides technical consulting and data analytics for national security.
19+ YOEExtensive software engineering experience; TS/SCI with polygraph; cloud infrastructure experience; strong Linux and Python; IT management understanding.
OpenStack, Linux, Python, Cloud infrastructure, COTS, GOTS
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2mo
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Principal Software Engineer
Washington, District of Columbia, United States
$152k-$229k/yr RemoteFull Time
Recorded Future
Recorded Future: Provides AI-driven threat intelligence to protect organizations from cyberattacks.
5+ YOE5+ years in data/backend/platform engineering; strong Python; cloud infra; Kafka/RabbitMQ; SQL/NoSQL; CI/CD; IaC; data pipelines; security data domain interest.
Python, Go, Rust, Cloud infrastructure, Kafka, RabbitMQ, PostgreSQL, MongoDB, Elasticsearch, Delta Lake, AWS Neptune, Neo4j, Flask, Django, FastAPI, CI/CD, GitHub Actions, Terraform, Infrastructure as Code
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3mo
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Principal Data Links and Communications Engineer
Bedford, Massachusetts, United States
$140k-$155k/yr OnsiteFull Time
Astrion
Astrion: Provide engineering and mission support services to federal government agencies.
20+ YOEUS citizen; advanced degree with extensive DoD experience; Top Secret/SCI clearance; data links, MBSE, DoD T&E; DecSecOps, Cloud, JIRA/Confluence/GIT/Cameo; travel limited.
DecSecOps, Cloud, MBSE, JIRA, Confluence, GIT, Cameo tool
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1mo
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Data Center BESS Principal Engineer
Arlington or Alpharetta or Houston
HybridFull Time
Fluence
FluenceNasdaq: FLNC: Provides energy storage systems and optimization software for renewables.
10+ YOESenior electrical/mechanical engineer with 10+ years in energy storage or electrical infrastructure, master's in electrical engineering required, PE preferred, proven track record closing complex B2B transactions, expertise in data center power, controls, modeling (PSCAD, EMT/RMS), and strong communication skills.
PSCAD, EMT/RMS
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2mo
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Principal Data Center MEP Engineer
Emeryville or Charlotte or Houston or Reston or Dallas or Naperville or Ohio or Washington or Oregon or United States
$150k-$195k/yr HybridFull Time
ENERCON
ENERCON: Engineering and environmental services for power and industrial sectors.
6+ YOEBachelor's in engineering (ABET), PE preferred, typically 6 years hyperscale data center design experience (15 years total preferred), ETABS and CAD proficiency, Microsoft Office skills, ability to travel 15–25% and perform site inspections.
Microsoft Office, Microsoft Word, Microsoft Excel, CAD, ETABS
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3w
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Senior Principal, Data Engineering
Arlington or O'Fallon
$212k-$390k/yr OnsiteFull Time
Mastercard
MastercardNYSE: MA: Global payment processing and financial technology service provider.
Design, build, and operate enterprise-scale cloud-native data platforms across AWS and Azure; hands-on Spark/PySpark and Python experience; Infrastructure-as-Code and CI/CD; strong cloud security and data governance expertise.
AWS S3, Amazon EC2, AWS Lambda, AWS Glue, Amazon Redshift, Amazon EMR, Amazon Athena, AWS Lake Formation, Databricks, Azure Data Factory, Azure Synapse, Azure Fabric, Azure Data Lake, Terraform, CloudFormation, Bicep/ARM, Azure DevOps, GitLab CI/CD, Spark, PySpark, Python, Bash, PowerShell, Docker, Kubernetes, ECS, AKS, CloudWatch, Azure Monitor, ELK, Grafana
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1mo
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Principal Data Engineer, Operations Manager II (NCS) - Mayor's Office of Performance and Innovation
Baltimore, Maryland, United States
$107k-$177k/yr OnsiteFull Time
City of Baltimore
City of Baltimore: Provides municipal services and public administration for Baltimore, Maryland.
7+ YOEBachelor's in CS/Data Science/Information Systems (or equivalent), 7+ years data engineering experience, proficiency with Python, PostgreSQL, ETL/ELT, data modeling, and collaborative engineering practices.
Python, Pandas, Polars, SQLAlchemy, requests, PostgreSQL, SQL, GitHub, ETL/ELT, CI/CD
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3d
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Principal Marketing Data Ops Engineer II
Bethesda or Getzville or New York City or Beachwood or Indianapolis or Tucson or Tampa or Chicago or Fredericksburg or Melville
HybridFull Time
GEICO
GEICO: Provides vehicle and property insurance services to consumers.
7+ YOE7+ years building data pipelines in Python/Scala, 7+ years SQL with enterprise warehouses, 5+ years ETL/ELT and cloud infrastructure experience (Azure/AWS/GCP); BA/BS preferred.
Python, Scala, SQL, Snowflake, Databricks, Azure, AWS, GCP, Azure Data Factory, Microsoft Dynamics, Statsig, REST API
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1w
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Principal Data Scientist
Annapolis Junction, Maryland, United States
$150k-$210k/yr OnsiteFull Time
Markon
Markon: Provides professional services and management consulting for government agencies.
8+ YOEActive TS/SCI with polygraph, Bachelor\u0002s degree with 8+ years (advanced degree may substitute), proficiency in Python, Docker, Kubernetes, ML and defensive cyber ops experience, strong Linux and data engineering skills.
Python, Docker, Kubernetes, R, SQL, NoSQL, graph, vector databases, Jupyter Notebooks, Linux, Ubuntu, CentOS, RHEL, AWS, Cisco (CCNA), Big Data Platform (BDP), STIGs, IAVA, Network Analysis Tools
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1mo
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Principal Data Center Thermal Products Engineer (onsite)
New Freedom, Pennsylvania, United States
$100k-$140k/yr HybridFull Time
Johnson Controls
Johnson ControlsNYSE: JCI: Provides integrated building technologies including HVAC, fire, and security systems.
7+ YOEBachelors in Mechanical Engineering, 7+ years with released thermal products/systems, chiller/HVAC experience, CAD and engineering analysis tools, heat transfer and fluid mechanics expertise, prototype testing, and cross-domain integration.
Microsoft 365, Microsoft Excel, VBA, CAD, SolidWorks, Creo, MathCAD, EES, Python, ANSYS Fluent, Star-CCM+, OpenFOAM, ANSYS Mechanical, Abaqus, MATLAB/Simulink
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1w
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Principal Software Engineer
Fulton or Research Triangle Park
$223k-$295k/yr HybridFull Time
Cisco
CiscoNASDAQ: CSCO: Develops and sells networking hardware and cybersecurity software.
15+ YOECharter vision and architecture for search and analytics, mentor senior engineers, design data platform and orchestration solutions; requires extensive systems design experience and hands-on AWS,C++,Go,SQL expertise.
AWS, C++, Go, SQL, Spark, Splunk
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3w
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Principal / Sr. Principal Systems Engineer - Electronic Warfare (EW)
Baltimore or Linthicum
$109k-$204k/yr OnsiteFull Time
Northrop Grumman
Northrop GrummanNYSE: NOC: Develops and manufactures advanced aerospace, defense, and space systems.
5+ YOEUS citizen with interim/final Secret clearance required; STEM bachelor's (or equivalent experience) with 5+ years related experience (Principal) or 8+ (Sr Principal); 3+ yrs EW/radar design/integration/testing; MATLAB proficiency; HWIL/SWIL and RF lab test equipment experience; data analysis and tool development skills.
MATLAB, Python, C++, Hardware-in-the-loop (HWIL), Software-in-the-loop (SWIL)
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5d
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Data Scientist, Principal
Oakland or Washington or Ohio or District of Columbia or California or Long Beach or Arizona or Colorado or Connecticut or Florida or Georgia or Maryland or Minnesota or Nevada or Oregon or El Dorado Hills or San Diego or Woodland Hills or Alabama or Illinois or Virginia or Wisconsin or Texas or New York
$182k-$273k/yr HybridFull Time
Ascendiun
Ascendiun: Nonprofit parent overseeing health insurance and clinical service organizations.
8+ YOEAdvanced experience in applied AI/ML and software development, strong Python engineering, hands-on with deep learning and LLM frameworks, experience building production AI applications and leading ML design.
Python, PyTorch, TensorFlow, LangChain, LangGraph, SQL, Spark, Azure, Google Cloud, AWS
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2mo
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Principal Cybersecurity Engineer
Reston, Virginia, United States
$185k-$277k/yr HybridFull Time
Workday
WorkdayNASDAQ: WDAY: Provides cloud-based software for financial and human capital management.
9+ YOE9+ years in building GRC platforms; proficient in Python/Go/Java; strong SDLC governance; architecture, data models, API design; leads technical roadmaps; experience automating risk data.
Python, Go, Java, Git, APIs, ETL, Data Modeling, NIST, FAIR
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2mo
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Principal Software Engineer
Annapolis Junction, Maryland, United States
$200k-$280k/yr OnsiteFull Time
GliaCell Technologies
GliaCell Technologies: Software and systems engineering for the intelligence community.
20+ YOETS/SCI with Polygraph clearance; 20 years SWE experience; US citizenship; strong communication; data analytics and leadership.
Java, Python, NiFi, DataXplorer, GMAE, Pig, MapReduce, Spark, Hadoop, Scala
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