{"schemaVersion":"jobsearcher.job.v1","id":"f9f97924f31a0a2c9589f82c","url":"https://jobsearcher.com/jobs/f9f97924f31a0a2c9589f82c","canonicalUrl":"https://jobsearcher.com/jobs/f9f97924f31a0a2c9589f82c","title":"Freelance Data Science Engineer (Python & SQL)","description":"Please submit your CV in English and indicate your level of English proficiency.\r\nMindrift connects specialists with project-based AI opportunities for leading tech companies, focused on testing, evaluating, and improving AI systems. Participation is project-based, not permanent employment.\r\nWhat this opportunity involves\r\nDesign original computational data science problems that simulate real-world analytical workflows across industries (telecom, finance, government, e-commerce, healthcare)\r\nCreate problems requiring Python programming to solve (using Pandas, Numpy, Scipy, Sklearn, Statsmodels, Matplotlib, Seaborn)\r\nEnsure problems are computationally intensive and cannot be solved manually within reasonable timeframes (days/weeks)\r\nDevelop problems requiring non-trivial reasoning chains in data processing, statistical analysis, feature engineering, predictive modeling, and insight extraction\r\nCreate deterministic problems with reproducible answers: avoid stochastic elements or require fixed random seeds for exact reproducibility\r\nBase problems on real business challenges: customer analytics, risk assessment, fraud detection, forecasting, optimization, and operational efficiency\r\nDesign end-to-end problems spanning the complete data science pipeline (data ingestion ? cleaning ? EDA ? modeling ? validation ? deployment considerations)\r\nIncorporate big data processing scenarios requiring scalable computational approaches\r\nVerify solutions using Python with standard data science libraries and statistical methods\r\nDocument problem statements clearly with realistic business contexts and provide verified correct answers\r\nWhat we look for\r\nThis opportunity is a good fit for Data Science specialists with an experience in python open to part-time, non-permanent projects. Ideally, contributors will have:\r\n5+ years of hands-on data science experience with proven business impact\r\nPortfolio of completed projects and publications showcasing real-world problem-solving\r\nExpert Python programming for data science (pandas, numpy, scipy, scikit-learn, statsmodels)\r\nExpert statistical analysis and machine learning - deep understanding of algorithms, methods, and their practical applications\r\nExpert with SQL and database operations for data manipulation and analysis\r\nExperience with GenAI technologies (LLMs, RAG, prompt engineering, vector databases)\r\nUnderstanding of MLOps practices and model deployment workflows\r\nKnowledge of modern frameworks (TensorFlow, PyTorch, LangChain)\r\nStrong written English (C1+).\r\nHow it works\r\nApply ? Pass qualification(s) ? Join a project ? Complete tasks ? Get paid\r\nProject time expectations\r\nFor this project, tasks are estimated to require around 10–20 hours per week during active phases, based on project requirements. This is an estimate, not a guaranteed workload, and applies only while the project is active.\r\nCompensation\r\nOn this project, contributors can earn up to $90 per hour equivalent , depending on their level and pace of contribution.\r\nCompensation varies across projects depending on scope, complexity, and required expertise. Please note that other projects on the platform may offer different earning levels based on their requirements.\r\nJ-18808-Ljbffr","company":"Mind Rift","rawCompany":"mind rift","city":"Wausau","state":"WI","isRemote":false,"isActive":true,"createdAt":"2026-04-10T01:19:54.303Z","occupations":[{"code":"15-2051.00","title":"Data Scientists","slug":"data-scientists"},{"code":"15-1252.00","title":"Software Developers","slug":"software-developers"},{"code":"15-1251.00","title":"Computer Programmers","slug":"computer-programmers"}],"industries":[{"code":"541690","title":"Other Scientific and Technical Consulting Services","slug":"other-scientific-and-technical-consulting-services"},{"code":"541990","title":"All Other Professional, Scientific, and Technical Services","slug":"all-other-professional-scientific-and-technical-services"},{"code":"561320","title":"Temporary Help Services","slug":"temporary-help-services"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"Freelance Data Science Engineer (Python & SQL)","description":"Please submit your CV in English and indicate your level of English proficiency.\r\nMindrift connects specialists with project-based AI opportunities for leading tech companies, focused on testing, evaluating, and improving AI systems. Participation is project-based, not permanent employment.\r\nWhat this opportunity involves\r\nDesign original computational data science problems that simulate real-world analytical workflows across industries (telecom, finance, government, e-commerce, healthcare)\r\nCreate problems requiring Python programming to solve (using Pandas, Numpy, Scipy, Sklearn, Statsmodels, Matplotlib, Seaborn)\r\nEnsure problems are computationally intensive and cannot be solved manually within reasonable timeframes (days/weeks)\r\nDevelop problems requiring non-trivial reasoning chains in data processing, statistical analysis, feature engineering, predictive modeling, and insight extraction\r\nCreate deterministic problems with reproducible answers: avoid stochastic elements or require fixed random seeds for exact reproducibility\r\nBase problems on real business challenges: customer analytics, risk assessment, fraud detection, forecasting, optimization, and operational efficiency\r\nDesign end-to-end problems spanning the complete data science pipeline (data ingestion ? cleaning ? EDA ? modeling ? validation ? deployment considerations)\r\nIncorporate big data processing scenarios requiring scalable computational approaches\r\nVerify solutions using Python with standard data science libraries and statistical methods\r\nDocument problem statements clearly with realistic business contexts and provide verified correct answers\r\nWhat we look for\r\nThis opportunity is a good fit for Data Science specialists with an experience in python open to part-time, non-permanent projects. Ideally, contributors will have:\r\n5+ years of hands-on data science experience with proven business impact\r\nPortfolio of completed projects and publications showcasing real-world problem-solving\r\nExpert Python programming for data science (pandas, numpy, scipy, scikit-learn, statsmodels)\r\nExpert statistical analysis and machine learning - deep understanding of algorithms, methods, and their practical applications\r\nExpert with SQL and database operations for data manipulation and analysis\r\nExperience with GenAI technologies (LLMs, RAG, prompt engineering, vector databases)\r\nUnderstanding of MLOps practices and model deployment workflows\r\nKnowledge of modern frameworks (TensorFlow, PyTorch, LangChain)\r\nStrong written English (C1+).\r\nHow it works\r\nApply ? Pass qualification(s) ? Join a project ? Complete tasks ? Get paid\r\nProject time expectations\r\nFor this project, tasks are estimated to require around 10–20 hours per week during active phases, based on project requirements. This is an estimate, not a guaranteed workload, and applies only while the project is active.\r\nCompensation\r\nOn this project, contributors can earn up to $90 per hour equivalent , depending on their level and pace of contribution.\r\nCompensation varies across projects depending on scope, complexity, and required expertise. Please note that other projects on the platform may offer different earning levels based on their requirements.\r\nJ-18808-Ljbffr","datePosted":"2026-04-10T01:19:54.303Z","dateModified":"2026-04-10T01:19:54.303Z","hiringOrganization":{"@type":"Organization","name":"Mind Rift","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Wausau","addressRegion":"WI","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"f9f97924f31a0a2c9589f82c"},"url":"https://jobsearcher.com/jobs/f9f97924f31a0a2c9589f82c"}}