81 principal data engineer jobs at 43 companies in Waldorf, MD
3mo
Save
Mark Applied
Hide
Principal Data Engineer – Mission Data Pipelines
Reston, Virginia, United States
$200k-$275k/yr HybridFull Time
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
1w
Save
Mark Applied
Hide
Principal Engineer - Data Center Infrastructure Engineering Service Delivery
Irving or Manassas or Charlotte or Sterling
$159k-$305k/yr HybridFull Time
7+ YOERequires 7+ years of engineering and data center experience, with enterprise technology support, infrastructure hardware knowledge, risk management, communication, and organizational skills.
ServiceNow
2mo
Save
Mark Applied
Hide
Principal Software/Data Engineer
Laurel, Maryland, United States
OnsiteFull Time
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
3mo
Save
Mark Applied
Hide
Principal Software Engineer
Washington, District of Columbia, United States
$152k-$229k/yr RemoteFull Time
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
2w
Save
Mark Applied
Hide
Principal Data Architect/Engineer - R&S
Washington, District of Columbia, United States
OnsiteFull Time
8+ YOEBachelor's degree and 8+ years of data engineering or architecture experience. Requires advanced SQL, Python, R, relational databases, ETL/ELT, scalable data systems, cloud migration, CI/CD, and data governance expertise.
SQL, PostgreSQL, Microsoft SQL Server, MySQL, Python, R, Apache Airflow, Prefect, Dagster, AWS Step Functions, GitLab, GitHub, Linux, AWS, Java, Scala, JavaScript, Perl, JSON, XML, CI/CD, DataOps, NoSQL, Change Data Capture (CDC)
3w
Save
Mark Applied
Hide
Principal Data Center Facilities Engineer
Ashburn, Virginia, United States
$102k-$210k/yr OnsiteFull Time
3+ YOE3+ years data center or facilities engineering experience; incident management, commissioning, and technical reporting skills; ability to support critical infrastructure and drive operational improvements.
computational fluid dynamics (CFD)
2mo
Save
Mark Applied
Hide
Data Center BESS Principal Engineer
Arlington or Alpharetta or Houston
HybridFull Time
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
6d
Save
Mark Applied
Hide
Principal Data Security Integration Engineer
Temple Terrace or Irving or Ashburn or Basking Ridge
$121k-$231k/yr HybridFull Time
6+ YOEBachelor’s degree or 4+ years’ experience; 6+ years relevant experience; enterprise relational databases, data pipelines, scripting, software development, REST APIs, and AI-assisted engineering tools required.
Claude, Microsoft SQL Server, Oracle, PostgreSQL, PowerShell, Python, Bash, C#, Java, REST, GitHub Copilot, SailPoint, Workday, SSH, SCP, LDAP, Active Directory
1w
Save
Mark Applied
Hide
Senior Principal AI Data Engineer
Crystal City, Virginia, United States
$174k-$236k/yr OnsiteFull Time
General Dynamics Information TechnologyNYSE: GD: Provides mission-critical IT services to government and defense organizations.
10+ YOE10+ years of related experience, bachelor's degree or equivalent, current TS/SCI with CI polygraph eligibility, US citizenship, and expertise in Python, Airflow, ElasticSearch/OpenSearch, vector search, Git, Linux, and data pipelines.
Apache Airflow, ElasticSearch, OpenSearch, Python, Git, Linux, MinIO, SQL, RAG
2mo
Save
Mark Applied
Hide
Senior Principal, Data Engineering
Arlington or O'Fallon
$212k-$390k/yr OnsiteFull Time
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
6d
Save
Mark Applied
Hide
Principal Data Security Integration Engineer
Temple Terrace or Ashburn or Irving or Basking Ridge
$121k-$231k/yr HybridFull Time
6+ YOEBachelor's degree or 4+ years' experience; 6+ years relevant experience; enterprise relational database administration, data pipelines, scripting, software development, REST APIs, and AI-assisted development tools.
Claude, Microsoft SQL Server, Oracle, PostgreSQL, PowerShell, Python, Bash, C#, Java, REST, GitHub Copilot, SailPoint, Workday, SSH, SCP, LDAP, Active Directory
1w
Save
Mark Applied
Hide
Senior Principal AI Data Engineer
Crystal City, Virginia, United States
$174k-$236k/yr OnsiteFull Time
10+ YOE10+ years of related experience, bachelor's degree or equivalent, current TS/SCI clearance, CI polygraph eligibility, Python, Airflow, Elasticsearch/OpenSearch, vector databases, Linux, Git, and database optimization.
Apache Airflow, Python, Elasticsearch, OpenSearch, Git, Linux, MinIO, SQL, CI/CD, RAG
1mo
Save
Mark Applied
Hide
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
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
3d
Save
Mark Applied
Hide
Data Scientist Principal
Chantilly, Virginia, United States
OnsiteFull Time
5+ YOEBachelor’s plus 9 years, master’s plus 7, or doctorate/JD plus 4; equivalent experience accepted. Requires 5+ years in software engineering, data analytics, machine learning, statistics, and active Top Secret/SCI with Poly.
Microsoft Office, Artificial intelligence (AI), Machine learning (ML)
6d
Save
Mark Applied
Hide
Principal Data Security Integration Engineer
Temple Terrace or Ashburn or Irving or Basking Ridge
$121k-$231k/yr HybridFull Time
6+ YOEBachelor's degree or 4+ years of experience, 6+ years relevant experience, enterprise relational database expertise, data pipeline and API integration experience, scripting, software development, and AI-assisted engineering tools.
Claude, SailPoint, Workday, SQL Server, Oracle, PostgreSQL, PowerShell, Python, Bash, C#, Java, REST, GitHub Copilot, SSH, SCP, LDAP, Active Directory
3w
Save
Mark Applied
Hide
Sr Principal Quality Engineer - Data Analytics
Linthicum, Maryland, United States
$123k-$185k/yr OnsiteFull Time
4+ YOESTEM degree with 4+ years experience (varies by degree), experience analyzing large datasets, building dashboards, statistical analysis, Power BI/Tableau, Microsoft Excel, strong communication and critical thinking.
Power BI, Tableau, Microsoft Excel, SQL
3mo
Save
Mark Applied
Hide
Principal Cybersecurity Engineer
Reston, Virginia, United States
$185k-$277k/yr HybridFull Time
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
3mo
Save
Mark Applied
Hide
Principal Software Engineer
Annapolis Junction, Maryland, United States
$200k-$280k/yr OnsiteFull Time
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
5d
Save
Mark Applied
Hide
Principal Structural Engineer
Redmond or Atlanta or San Antonio or Phoenix or Washington, D.C. or United States
$143k-$275k/yr RemoteFull Time
7+ YOEMaster's degree and 7+ years, or bachelor's degree and 8+ years of technical engineering experience. Structural engineering, data center design, leadership, and design software experience required; professional engineering licensure preferred.
Autodesk Revit, AutoCAD, SketchUp, Bluebeam, BIM 360
4d
Save
Mark Applied
Hide
Principal AI/ML Data Scientist (Systems Architecture, Senior Associate)
Reston, Virginia, United States
$190k-$245k/yr OnsiteFull Time
20+ YOE20+ years in software, data engineering, distributed systems, cloud architecture, or AI/ML platforms; expert Python and SQL; enterprise AI architecture experience; bachelor's degree or equivalent experience; Top Secret/SCI with CI Polygraph clearance.
Python, SQL, Azure, AWS, Google Cloud, MLOps, CI/CD, vector databases, Retrieval-Augmented Generation, RAG, Agentic AI, large language model, LLM
Explore Jobs