PromotedHiringCafe
Founding Backend / Infra Engineer
Cupertino, CA, US
$160k-$300k/yr On-SiteFull Time
Own the crawlers, pipelines, and infrastructure powering a real-time job search engine. Strong Node.js and Python fundamentals; bonus points for security and reverse-engineering chops.
Node.js, Python, Elasticsearch, Redis
6d
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Director of R&D (Data Center Development)
Ashburn, Virginia, United States
$180k-$220k/yr RemoteFull Time
10+ YOEBachelors in EE/CE or related,10+ years electronic design/R&D in power systems,prototyping experience,proficiency with C/C++,MATLAB or Python,knowledge of power quality and metering,excellent communication.
C/C++, MATLAB, Python, Modbus TCP, OPC UA, MQTT, BACnet, IEC 61850, APIs, AI/ML, cloud platforms
1w
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R&D Engineer Intern
State College or Reston
HybridPart Time, Internship
Undergraduate student studying engineering or related field with proficiency in Linux and programming (C, Python, bash, PowerShell); strong communication and teamwork; eligible for U.S. government security clearance.
Linux, C, Python, bash, PowerShell, Microsoft Word, Microsoft Excel, Microsoft PowerPoint
1w
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Psychometrician, AWS Training & Certification
Austin or Seattle or Arlington or Bellevue or Portland or Herndon
$136k-$184k/yr OnsiteFull Time
1+ YOEPhD with post-doctoral experience in high-stakes certification, experience with JTA, standard setting, equating, IRT, item analysis, form assembly, Generative AI, and proficiency in R or Python.
R, Python, Generative AI, Machine Learning, Agentic AI
4d
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Molecular Biology Senior Scientist
Ft Detrick, Maryland, United States
OnsiteFull Time
PhD in a related discipline, advanced experience in high-throughput screening/high-content imaging, proficiency with R/Python/Perl, assay development, data analysis, and technical leadership for multidisciplinary research.
Opera High Content Imager, Leica STED, 3D bioprinter, Genedata, Spotfire, Acapella, R, Python, Perl
1mo
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Research Data Scientist, Cybersecurity, Google Cloud
San Francisco or Reston
$147k-$211k/yr OnsiteFull Time
3+ YOEMaster's in a quantitative field (or PhD), 3+ years analytics/coding experience (Python, R, SQL), experience developing/deploying ML/AI models, security/fraud domain experience preferred.
Python, R, SQL
3w
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Hydrologist
Leesburg, Virginia, United States
RemoteFull Time
3+ YOESenior technical authority to design, test, and deploy operational hydrologic models; mentor staff; perform advanced data analysis and ensemble forecasting; strong programming (Python, R) and operational systems expertise.
SAC-SMA, HEFS, Python, R
3mo
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Postdoctoral Fellow (PREP0004131)
Gaithersburg, Maryland, United States
$82k-$89k/yr OnsiteFull Time
2+ YOEPhD in engineering/chemistry/physics/materials or related; 2+ years relevant lab experience; proficiency with Microsoft Excel, MATLAB, Python, R; strong communication, organization, and leadership potential; U.S. citizen preferred.
Microsoft Excel, MATLAB, Python, R
3w
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Computational Scientist I, Single-cell/Spatial Cancer Genomics, CGR
Rockville, Maryland, United States
$103k-$148k/yr OnsiteFull Time
PhD in bioinformatics/related field, expertise in single-cell and spatial omics, strong programming in R and Python, reproducible workflows (Docker, Singularity, GitHub, Snakemake/Nextflow), HPC/Slurm experience, publication record, and ability to obtain a security clearance.
R, Python, RStudio, Microsoft VS Code, Jupyter Notebooks, Docker, Singularity, GitHub, Snakemake, Nextflow, Conda, Bash, AWK, SED, Slurm, Cell Ranger, Space Ranger, StarDist, QuPath, HALO, CellPose, Baysor, Proseg, FICTURE, Seurat, Bioconductor, SpatialData, Scanpy, Squidpy, Harmony, FastMNN, RPCA, Leiden, Louvain, Banksy, spaGCN, RCTD, Azimuth, SingleR, LIANA, CellChat, CellPhoneDB, DESeq2, GSEA, Loupe Browser, IGV, UCSC Genome Browser, BAM, Parquet, ggplot2, Matplotlib, Seaborn, Plotly
1mo
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Staff Geophysict
Chantilly, Virginia, United States
$109k-$200k/yr FieldFull Time
7+ YOEBS in physical science or equivalent, 7+ years relevant experience in geophysical data acquisition, signal processing, modeling, and algorithm development; experience with seismic/GPR/EM sensors, MATLAB/Python/R/C++, field work, and current SECRET clearance (U.S. citizen).
MATLAB, Python, R, C/C++, ground-penetrating radar (GPR)
3mo
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Sr. Research Associate, Mass Spectrometry (#1901)
Frederick, Maryland, United States
$65k-$107k/yr OnsiteFull Time
6+ YOE6+ years with BS or 4+ with MS; MS instruments (LC-MS/MS, MALDI-TOF); proteomics/metabolomics experience; sample prep; data analysis with Proteome Discoverer, Compound Discoverer, MassHunter, Skyline, MaxQuant, FragPipe, MS-Dial; programming (R, Python) a plus; strong communication and teamwork; U.S. citizen with ability to obtain interim secret th...
Mass spectrometry instruments, LC-MS/MS, MALDI-TOF, Proteomics software, R, Python, Proteome Discoverer, Compound Discoverer, MassHunter, Skyline, MaxQuant, FragPipe, MS-Dial
2mo
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Data Scientist
Sterling or United States
OnsiteFull Time
Bachelor's degree; experience with SQL, Python, R; data integration and modelling; CBP public trust or Top Secret clearance.
SQL, Python, R, DataRobot, Senzing
2mo
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Principal Computer Scientist
Reston, Virginia, United States
OnsiteFull Time
20+ YOETS/SCI with Poly, Master’s in a technical field, 20+ years in data science/ML, Python/R/SQL, data visualization, DoD/IC knowledge.
Python, R, SQL, Power BI, Tableau, SPARQL, GraphQL
2w
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Data Scientist - Mid
Denver or St. Louis or Sterling or Springfield
$69k-$142k/yr OnsiteFull Time
4+ YOEBachelor's or equivalent,4+ years data science experience,proficiency in Python or R and SQL,statistics and visualization experience,TS/SCI clearance with polygraph willingness.
Python, R, SQL, matplotlib, Tableau, ArcGIS, QGIS, GeoPandas
2mo
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Senior Energy Consultant - Analytics (REMOTE)
Reston or United States
$108k-$184k/yr RemoteFull Time
8+ YOEBA/BS in related field; 8+ years energy/utility analytics consulting; proficient in R, Stata, SQL, SAS, Python; strong communication; project leadership.
R, Stata, SQL, SAS, Python
1w
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Intern - Year Round (Business Intelligence Analyst)
Vienna or Winchester
$19-$36/hr HybridMultiple Commitments Available
Currently enrolled in college; skills in data gathering, statistics, Azure, Databricks, technical writing, and data storytelling. Programming in SQL/Python/R and analytical coursework preferred.
SQL, Python, R, Azure, Databricks
3mo
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Data Scientist
Chantilly or Herndon or McLean
OnsiteFull Time
5+ YOEActive TS/SCI with Poly; 5+ years in data science; Bachelor's or Master's in related field; Python or R; ML frameworks; SQL; visualization; cloud platforms.
Python, R, Scikit-learn, TensorFlow, PyTorch, SQL, Tableau, Power BI, Matplotlib, Seaborn, AWS, Azure, GCP
4w
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C-UAS Test Analyst
Summit Point, West Virginia, United States
$75k-$131k/yr OnsiteFull Time
0+ YOEBachelor's in CS/Math/Statistics/Engineering (or 4+ years analytics), experience with Python, JavaScript, Linux, command line, statistics/data analysis, Microsoft Suite, technical writing, root cause analysis, and Part 107 certificate; travel up to 15%.
Python, JavaScript, Linux, command line, Microsoft Suite, MATLAB, R, MySQL, HTML, PHP, CSS, Tableau, Power BI
2w
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Senior Data Scientist
Denver or Springfield or Sterling or St. Louis
$82k-$172k/yr OnsiteFull Time
8+ YOETS/SCI clearance with polygraph, Bachelor or equivalent, 8+ years experience, expert Python/R and SQL, ML production experience, data visualization, and geospatial experience preferred.
Python, R, SQL
1mo
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Data Scientist I
Chantilly, Virginia, United States
$83k-$129k/yr OnsiteFull Time
0+ YOEBachelor's in a quantitative field; 0-6 years of related experience; US Citizenship; TS/SCI with CI Polygraph; Python/R; ML and analytics; data visualization tools.
Python, R, SQL, Tableau, Power BI, Plotly, Matplotlib
2w
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Data Science and Analyst
Gettysburg, Pennsylvania, United States
OnsiteFull Time
3+ YOE3-5 years in data science/analytics, proficiency in Python or R, strong SQL, Power BI experience, statistics knowledge, Git experience, and strong communication skills.
Python, pandas, scikit-learn, NumPy, matplotlib, seaborn, R, SQL, Microsoft Power BI, Git