PromotedHiringCafe
Founding Machine Learning / AI Search Engineer
Cupertino, CA, US
$160k-$310k/yr On-SiteFull Time
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
2w
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Principal Data Engineer
Philadelphia, Pennsylvania, United States
HybridFull Time
10+ YOE3+ Mgmt10+ years in data or software engineering, 7+ years building production data pipelines, strong Databricks/Spark/PySpark/SQL experience, Azure and streaming expertise, plus leadership and production operations experience.
Databricks, PySpark, Spark SQL, Spark, Python, SQL, Delta Lake, Databricks Workflows, CI/CD, Azure, Azure Event Hubs, Azure Stream Analytics, Azure Service Bus, Azure Data Factory, Azure Functions, ADLS, Azure Cosmos DB, Event Grid
1w
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Principal Data & Machine Learning Engineer
Malvern, Pennsylvania, United States
HybridFull Time
10+ YOE3+ Mgmt10+ years in software/data engineering and ML, 3+ years technical leadership, strong Python and SQL, cloud data/ML platform experience (Azure preferred), production model lifecycle ownership.
Azure, Python, SQL, Microsoft Fabric, OneLake, Databricks, Synapse, Azure DevOps, CI/CD, ETL/ELT
3w
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Liquid Cooling Data Center Principal Engineer
Newark, Delaware, United States
$141k-$221k/yr OnsiteFull Time
5+ YOEBS in engineering or materials science, 5+ years in data center cooling (10+ preferred), knowledge of liquid cooling and data center operations, strong communication, project management, and ability to run lab experiments and field trials.
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
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
4w
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Principal / Sr. Principal Systems Engineer - Electronic Warfare (EW)
Baltimore or Linthicum
$109k-$204k/yr OnsiteFull Time
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)
3d
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Principal Engineer Quality
Baltimore, Maryland, United States
$99k-$148k/yr OnsiteFull Time
5+ YOERequires active Top Secret/SCI clearance, BS in STEM with 5+ years QA engineering experience (or MS/PhD with reduced experience), expertise in quality assurance, root-cause analysis, data analytics, and AS9100/QMS application; U.S. citizenship required.
Microsoft Excel, Minitab, SAP, SQL, Power BI
3w
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Principal Solutions Engineer
Malvern, Pennsylvania, United States
HybridFull Time
5+ YOE5+ years software development experience in retail payments with expertise in POS integration, remote teamwork, Microsoft .NET Framework & Linux, C++/C#/Java, REST API and data exchange specifications.
Microsoft .NET Framework, Linux, C++, C#, Java, REST API
2mo
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Principal Solution Engineer Oracle EPM and Hyperion HFM (Camden, NJ, US, 8102)
Camden, New Jersey, United States
OnsiteFull Time
12+ YOELead Oracle EPM/Hyperion HFM with EPBCS/PBCS, SAP integration, and data management. 12+ years in Oracle EPM, complex integrations, and performance optimization.
Oracle EPM Cloud, Hyperion HFM, EPBCS, PBCS, Essbase, Data Management, EPM Automate, FDMEE, Groovy, SAP
1w
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Principal Engineer - Surveyor - 90386117 - Wilmington
Wilmington, Delaware, United States
$125k-$161k/yr OnsiteFull Time
7+ YOESupervise and perform track and right-of-way surveys, review field data, create survey plans; bachelor’s degree or equivalent and 7+ years relevant experience required; professional survey credentials preferred.
Microsoft Outlook, Microsoft Word, Microsoft Excel, Microsoft PowerPoint, CAD, GNSS
1w
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Principal Machine Learning Engineer
Philadelphia, Pennsylvania, United States
OnsiteContract
5+ YOE5+ years ML model development, 3+ years production model operationalization, strong Python and SQL skills, experience with Databricks/Spark/MLflow, model evaluation and MLOps, and stakeholder communication.
Python, SQL, Spark, Databricks, MLflow, scikit-learn, XGBoost, Snowflake, Azure, AWS
3mo
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Principal AI/ML Engineer (Large Language Model)
Aurora or Philadelphia
$115k-$252k/yr OnsiteFull Time
10+ YOEBS in ML/CS/Math; 10+ years in software/data science; experience with LLMs, PEFT, RAG, LangChain/DSPy; Python ML libs; TS/SCI clearance.
Python, PyTorch, TensorFlow, Keras, OpenCV, NumPy, Pandas, Polars, scikit-learn, Weaviate, pinecone, LangChain, DSPy, llama.cpp, vllm, Kubernetes, AWS, EC2, S3, LangChain, HuggingFace
3mo
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Forward Deployed Principal Engineer
Atlanta or Columbus or Dallas or Los Angeles or New York City or Philadelphia or Richardson or Seattle
$235k-$255k/yr OnsiteFull Time
10+ YOE10+ years in software or data engineering, 3+ years embedded/forward-deployed experience, track record shipping production software, product partnership experience, AI/ML and data platform expertise.
React, TypeScript, Python, Node.js, AWS, Azure, GCP, SQL, Snowflake, Databricks, GraphQL, RESTful, CI/CD
2w
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Principal Software Engineer
United States or Vienna or Baltimore
$220k-$372k/yr OnsiteFull Time
12+ YOE12+ years software development experience with expertise in cloud-native, storage and data management; proficiency in NFS/SMB/iSCSI and programming in C/C++/Golang/Node.js/Python.
C, C++, Golang, Node.js, Python, NFS, SMB, iSCSI, Docker, Kubernetes, GitHub, Jenkins, Ansible
1w
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Principal Software Engineer
Baltimore or Seattle or Vienna or United States or United States
$220k-$372k/yr HybridFull Time
12+ YOE12+ years software development, 5+ years data management/storage experience, 3+ years cloud-native and SOA expertise, proficiency with storage protocols and listed programming tools, strong communication and architectural skills.
C, C++, Golang, Node.js, Python, Docker, Kubernetes, GitHub, Jenkins, Ansible, CI build systems, Automated Testing, NFS, SMB, iSCSI
2mo
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Principal, Technical Product Manager
Chicago or Reston or Crum Lynne or Boca Raton or White Plains
$169k-$281k/yr HybridFull Time
15+ YOE15+ years in technical product management for enterprise/platform products; cloud-native data/analytics experience; multi-tenant enablement; strong collaboration with engineering, UX, and platform teams.
AWS, Microsoft Azure, Google Cloud Platform, APIs, Enterprise data platforms, Data analytics tools
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