Data Science Experts para contratar
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Freelancers patrocinados
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Contratar Herculesz
Principal / Head AI Engineer with 25+ years of experience architecting and scaling complex software systems, now specializing in Large Language Models (LLMs), agentic workflows, and AI-first product development. Proven expertise in integrating OpenAI APIs, building RAG pipelines, and deploying scalable,...Principal / Head AI Engineer with 25+ years of experience architecting and scaling complex software systems, now specializing in Large Language Models (LLMs), agentic workflows, and AI-first product development. Proven expertise in integrating OpenAI APIs, building RAG pipelines, and deploying scalable, production-grade LLM features using LangChain, pgvector, Pinecone, and related technologies. Hands-on leader with a track record of transforming business workflows through intelligent systems—semantic search, AI copilots, and conversational agents—while maintaining rigorous engineering standards across DevOps, observability, and frontend/backend architecture. Deep experience in embedding optimization, prompt engineering, fine-tuning GPT models, and delivering generative AI(GenAI) products that drive measurable impact. Skilled in mentoring engineers, leading cross-functional AI initiatives, and aligning technical strategy with executive goals in fast-paced, innovation-driven environments. Passionate about building the next generation of human-centered AI systems. menos -
Contratar expertswriting45
Redacción de investigaciones, Investigación, Redacción por encargo, Redacción de informes, Psicología de ConsejeríaProfessor of Autonomous and Engineering Systems. UK STEM Ambassador, King Trust Educational Mentor, King Trust Business E--mentor. UN member. With over 20 years of experience specializing in engineering systems, autonomous technology, and lean manufacturing. My career bridges cutting-edge research with practical...Professor of Autonomous and Engineering Systems. UK STEM Ambassador, King Trust Educational Mentor, King Trust Business E--mentor. UN member. With over 20 years of experience specializing in engineering systems, autonomous technology, and lean manufacturing. My career bridges cutting-edge research with practical applications, contributing to advancements across sectors like aerospace, healthcare, and manufacturing. Author of books "Artificial Intelligence in the Real World: How AI Is Already Transforming Industries, Decisions, and Everyday Life" and "Artificial Intelligence Made Simple: How Autonomous Systems Really Work (Even If You're Not Technical)". I bring a proven track record of success, having supervised 65 PhD candidates, over 790 MSc dissertations, and directed more than 800 capstone projects. My ability to secure over £2.5M in research funding underscores my expertise in leading high-impact initiatives. I excel in developing interdisciplinary research programs, mentoring diverse teams, and translating complex technical concepts into actionable insights. Skills and Expertise Pitch Development Expertise in crafting compelling investor pitches to secure funding and build strategic partnerships. Ability to articulate complex ideas and translate them into persuasive narratives tailored to diverse stakeholders. Business Planning that align innovation with market needs and organizational goals. Skilled in conducting market analysis, identifying growth opportunities, and defining actionable strategies. Presentation and Communication Advanced skills in creating engaging and impactful PowerPoint presentations for investors, clients, and teams. Strong communicator adept at distilling technical concepts into clear, concise, and actionable insights. Marketing Strategy Expertise in developing marketing plans to enhance brand visibility and engage target audiences effectively. Proficient in content marketing, social media strategy, and leveraging data analytics to optimize campaigns. Creative and Branding Design Skilled in conceptualizing and designing professional logos and branding materials that reflect innovation and sustainability. Experience with visual storytelling to enhance brand identity and appeal. Leadership and Collaboration Proven ability to lead interdisciplinary teams and foster collaboration across academic and industry stakeholders. Research and Innovation Adept at bridging academic research with practical applications in fields like aerospace, healthcare, and manufacturing. Expertise in integrating sustainable practices into automated operational workflows. Strategic Insight and Problem Solving Exceptional ability to analyze complex challenges and develop tailored, data-driven solutions. Experienced in aligning research and technology initiatives with organizational goals to maximize impact. menos -
Contratar EightVeer
EightVeer EightVeer
$400 USD / hora
8veer® | Strategy, AI & Transformation ConsultingUnited KingdomAnálisis de negocios, Redacción de artículos, Consultoría Empresarial, Investigación, Analítica empresarial8veer is a UK consulting firm helping organizations improve growth, operating performance, and decision quality through strategy, transformation, analytics, and AI. On Freelancer, our work spans strategic advisory, AI adoption, market research, financial analysis, go-to-market planning, digital marketing, sourcing,...8veer is a UK consulting firm helping organizations improve growth, operating performance, and decision quality through strategy, transformation, analytics, and AI. On Freelancer, our work spans strategic advisory, AI adoption, market research, financial analysis, go-to-market planning, digital marketing, sourcing, and operational improvement. We bring structured problem solving, executive-level judgment, and disciplined delivery to engagements that require both strategic clarity and practical execution. Clients work with 8veer for professionalism, responsiveness, analytical rigor, and measurable business impact. We support organizations across finance, technology, healthcare, energy, real estate, retail, and the public sector with advice that is commercially grounded, well-structured, and built for action. menos -
Contratar ShaikhAneesa
Redacción de investigaciones, Escritura técnica, Gestión de proyectos, Redacción de informes, Procesamiento de datosHello, I'm a data analyst with 8+ years of hands-on experience in transforming raw data into actionable insights. I have been assisting businesses, researchers, and doctoral scholars globally in effectively analyzing qualitative and quantitative data using tools such as Stata, SPSS, R, Python, EViews, Power BI, and...Hello, I'm a data analyst with 8+ years of hands-on experience in transforming raw data into actionable insights. I have been assisting businesses, researchers, and doctoral scholars globally in effectively analyzing qualitative and quantitative data using tools such as Stata, SPSS, R, Python, EViews, Power BI, and Excel. In addition to my core data analysis expertise, I have expanded my capabilities in AI automation, machine learning, and large language model (LLM) applications. I work with frameworks like LangChain and Retrieval-Augmented Generation (RAG) to develop intelligent solutions such as chatbots, knowledge retrieval systems, and automated analytics pipelines — enabling organizations to streamline workflows and enhance decision-making with AI-powered insights. With a blend of domain expertise in business and science and robust statistical skills, I am equipped to decode complex datasets, unveil hidden patterns and trends, and present findings as actionable predictive and explanatory models. ► My Services: ✔️ Statistical Analysis using R / SPSS / STATA / EViews: -Descriptive Statistics: Means, Medians, Modes, Standard Deviations, Frequency Distributions, and Cross-tabulations -Hypothesis Testing: T-Tests, Chi-square Tests, and ANOVA (ANOVA/ANCOVA/MANOVA) -Regression Analysis: Linear and Logistic Regression Models -Time Series Analysis: Trend Analysis, Seasonality, and Forecasting -Multivariate Analysis: PCA, Factor Analysis, and Cluster Analysis -Econometric Analysis: VAR, VECM, and Panel Data Analysis ✔️ Machine Learning & AI Automation: -Supervised and Unsupervised Learning (Regression, Classification, Clustering) -Natural Language Processing (NLP) and LLM Applications -LangChain and RAG-based Chatbots, Assistants, and Knowledge Systems -Automated Data Pipelines and Predictive Modeling ✔️ Power BI Reporting: -Extracting data from various sources (APIs, Excel files, SQL Servers, etc.) -Cleaning and transforming data using Power Query on Datasets or Dataflows -Establishing data model relationships -Creating and validating measures using DAX -Developing and testing charts and filters -Designing user-friendly interfaces ✔️ Data Visualization: -Histograms, Scatter Plots, Box Plots, Heatmaps, and Dendrograms ✔️ Reporting and Documentation: -Comprehensive statistical reporting with clear visualizations and actionable insights tailored to your needs — ensuring that findings are both understandable and practical for decision-making. With this broad technical expertise, I provide free consultations and strategic recommendations to help clients address real-world challenges and drive smarter, data-informed decisions in today’s AI-driven world. Best Regards, Aneesa menos -
Contratar SakibKaiser
Python, Aprendizaje Automático (ML), Análisis de Datos, Lenguaje de Programación R, Ciencia de datosHello! Hope you're having a great day. I'm an AI Engineer specializing in machine learning, deep learning, and computer vision with 30+ completed projects delivering measurable results that drive growth and efficiency across diverse industries. Core Expertise: ✅ Machine Learning: Predictive models achieving 95%+...Hello! Hope you're having a great day. I'm an AI Engineer specializing in machine learning, deep learning, and computer vision with 30+ completed projects delivering measurable results that drive growth and efficiency across diverse industries. Core Expertise: ✅ Machine Learning: Predictive models achieving 95%+ accuracy across sectors ✅ Deep Learning: Neural networks reducing operational costs by 40-60% ✅ Computer Vision: Satellite imagery analysis detecting 5,000+ wind turbines, 10x image enhancement algorithms ✅ Data Science: Analytics pipelines generating $500K+ in cost savings ✅ Financial AI: Stock prediction models with 88% accuracy, portfolio optimization reducing risk by 25% ✅ Power Systems: Line rating analysis processing 14-year meteorological datasets across England Industry Impact: - Built recommendation engines increasing revenue by 35% - Developed fraud detection models saving $2M+ annually - Created automation systems reducing manual work by 70% - Designed predictive maintenance tools preventing 90% of failures - Built trading bot executing 1,000+ daily trades with triangular arbitrage strategies - Generated $150K+ returns through algorithmic portfolio management - Optimized energy grid performance through exceedance analysis Technical Stack: Python, TensorFlow, PyTorch, OpenCV, AWS, Docker, MLOps, R, Stata, Matlab, Excel, Spss, Let's discuss how my AI expertise can solve your specific business challenges and drive measurable results for your organization. Kind Regards, Sakib Kaiser menos -
Contratar UnsaAlam
Redacción de contenidos, Redacción por encargo, Edición, Redacción de libros, Redacción de artículosUnleashing Words, Igniting Impact: Meet Your Content Catalyst and Pro Researcher – Unsa! With over 12+ years of immersive experience in research and content writing industry, I bring a unique blend of creativity, precision, and a touch of magic to every word. My writing style is engaging; but highly technical (if...Unleashing Words, Igniting Impact: Meet Your Content Catalyst and Pro Researcher – Unsa! With over 12+ years of immersive experience in research and content writing industry, I bring a unique blend of creativity, precision, and a touch of magic to every word. My writing style is engaging; but highly technical (if needed). I create every piece from scratch, so whether you’re a blogger, B2C, or B2B or even looking to have a thought-provoking eBook you can be sure that you’re getting exactly what you need. Do you know why I am so confident in my assertions? ➤ It is because what I do is three-fold: 1) Research a subject exhaustively, then 2) Distill complex information into an understandable content; and 3) Convey that information in a clear and conversational way. Seems interesting? Let's dive into the realm of creativity and see what unique wonders I can craft: ✓ eBooks ✓ Blog Posts and Articles ✓ Autobiography and Memoirs ✓ Novels ✓ Short Children Stories ✓ Web Copy ✓ Newsletters ✓ Social Media Posts ✓ Emails and Legal Letters ✓ ATS-Resume, Cover Letter, & LinkedIn Profile ✓ Business Documents (Business Plans, Proposals, Policies, Pitch decks) ✓ Proofreading, Rewriting, and General Editing While my experience may not span three decades, I offer a fresh perspective and a commitment to crafting enjoyable and fluff-free content that aligns with your preferences. 'HIRE ME' and let's dive into a conversation where ideas dance and possibilities flourish :) May your day be blessed in many ways! Cheers, Unsa Alam. P.S.: © I'm open to sign NDA for safeguarding ideas and business interests. menos -
Contratar tangramua
We are a Canadian-Ukrainian team of highly professional IT specialists (software developers, designers, system administrators and Internet marketers) with more than 20 years expertise. OUR MAIN SPECIALIZATIONS: 1) WEB DEVELOPMENT & SOFTWARE DEVELOPMENT 1.1) FRONT-END: HTML, HTML5, CSS3, Bootstrap, TailwindCSS ...We are a Canadian-Ukrainian team of highly professional IT specialists (software developers, designers, system administrators and Internet marketers) with more than 20 years expertise. OUR MAIN SPECIALIZATIONS: 1) WEB DEVELOPMENT & SOFTWARE DEVELOPMENT 1.1) FRONT-END: HTML, HTML5, CSS3, Bootstrap, TailwindCSS 1.2) JAVASCRIPT: JavaScript, ES6+, Typescript, Node.js, MEAN, MERN, MEVN, Angular, React.js, Vue.js, Nuxt.js, Next.js, Gatsby.js, jQuery 1.3) BACK-END 1.3.1) LAMP (Linux, Apache, MySQL, PHP) including Symfony, Laravel, Yii, Zend, CodeIgniter, CakePHP 1.3.2) Python (Python, Django, Flask, FastAPI) 1.3.3) .NET stack technologies (C#, ASP.NET, .NET Core) 1.4) OPEN SOURCE SOLUTIONS 1.4.1) E-commerce Platforms: Shopify, Magento, WooCommerce, Prestashop, OpenCart, BigCommerce, Shopware, osCommerce 1.4.2) CMS: WordPress, Drupal, Joomla, TYPO3 etc. 1.4.3) CRM: SuiteCRM, SugarCRM 2) MOBILE DEVELOPMENT 2.1) Android native development: Java, Kotlin 2.2) iOS native development: Swift, Objective-C 2.3) Cross platform development: Flutter, React Native, Ionic 3) DESIGN 3.1) Website Design (UI (User Interface), UX (User Experience) etc.) 3.2) Graphic Design (Creative Design, Digital Design, Advertisement Design etc.) 3.3) Corporate Identity (Brand Boooks, Business Cards, Logos, LetterHeads etc.) 4) INTERNET MARKETING 4.1) Social Media Marketing (Linkedin, Xing, Facebook, YouTube, Instagram etc.) 4.2) SEO (SEO Copywriting, SEO Auditing, White Hat SEO) 4.3) PPC Marketing (Google Adwords, Google Ads, Facebook Ads, YouTube Ads, Instagram Ads etc.) 4.4) Email Marketing 5) MANAGED SERVICES 5.1) 24/7 TECHNICAL SUPPORT 5.2) SYSTEM ADMINISTRATION SERVICES Our team of high qualified System Administrators have huge experience with technologies covering: - different distributions of OS Linux, Unix and MS Windows Server systems; - different types of virtualization (ProxMox, Virtuozzo, OpenVZ, KVM, XEN, VMware, Hyper-V); - VPN/DNS/IPTables/Firewalls/web servers/mail servers configuration and tuning etc.; - cloud solutions (AWS, MS Azure, Google Cloud, Alibaba Cloud, OVHcloud, DigitalOcean, Linode etc.). 6) HOSTING SERVICES provided by our hosting subdivision under trade mark "TanHost" 6.1) Cloud based solutions (e.g. configuration and technical support of Private Clouds); 6.2) Сollocation services, the providing for rent dedicated and VPS/VDS (virtual servers); 6.3) Shared Hosting; 6.4) Domain names registration services; 6.5) SSL Certificates. 7) EMBEDDED SYSTEMS 7.1) Embedded software development 7.2) Internet of Things (IoT) 7.3) Microcontrollers programming 7.4) Arduino microcontrollers programming OUR CREDO: Reputation – is above anything else! We help our customers to grow success and we grow together with our customers! We are flexible to meet our clients' needs. We make it simple... menos -
Contratar WycOj
VERIFIED ||STATISTICIAN ||RESEARCHER||CHEMIST I am a Biostatistician, Data Analyst and Researcher with a solid background in data science and medical data analysis with research having experience of over 7 years; I provide these services : Data cleaning and manipulation(DATA WRANGLING) Data coding and...VERIFIED ||STATISTICIAN ||RESEARCHER||CHEMIST I am a Biostatistician, Data Analyst and Researcher with a solid background in data science and medical data analysis with research having experience of over 7 years; I provide these services : Data cleaning and manipulation(DATA WRANGLING) Data coding and encoding Systematic review and Meta analysis(From search of articles, analysis, writing journals) Statistical analysis, PCA, EFA, EDA, All tests ; parametric and non-parametric Structural Equation modelling using AMOS[SEM],R, Smart PLS Machine learning and modelling IN PYTHON /R Deep learning and NLP modelling(classification, regression, neural networks) Data Visualisations and dashboards, using, Excel, Tableau and Power Bi,R,Python(seaborn/matplotlib) Qualitative(thematic analysis) and quantitative analysis Predictive analytics and predictive models such regression models Time series analysis, DCC GARCH models, SARIMAX ,ARIMA models,LSTM Biostatistics and Medical data analysis Econometrics Geospatial analysis Sales Data analysis , getting trends and insights Academic writing and research Majored in the following software’s and Languages SPSS & SPSS AMOS, Excel,R studio,STATA,JAMOVI,SAS,MINITAB SMART PLS,NVIVO,Python,SQL, Tableau , Power Bi, WEKA, STATISTICA. Qualtrics, Jasp, Atlas .ti, MAXDA I n addition , I also have a good command in chemistry and research and I offer the following services; Medical research , Journals Advanced synthesis of compounds and reaction mechanisms Formulations of new products (organic and inorganic ). Chemical engineering Research papers and lab reports. Research papers, literature review, Academic writing. Proof reading and editing. Desertations and Thesis. Tools and Databases: Cochrane Library PubMed ClinicalTrial.gov Scopus Web of Science Welcome :AVAILABLE 24/7: QUALITY WORK GUARANTEED WITHIN THE TIME LIMIT menos -
Contratar janita24
Hi there! You can call me Jane, your go-to freelancer with over 5 years of experience in various domains. I pride myself on providing specialized services that cater to the unique needs of individuals and companies like yours. I'm your go-to expert. I excel in; ☑️ SPSS, Jamovi, R programming, Python, Excel,...Hi there! You can call me Jane, your go-to freelancer with over 5 years of experience in various domains. I pride myself on providing specialized services that cater to the unique needs of individuals and companies like yours. I'm your go-to expert. I excel in; ☑️ SPSS, Jamovi, R programming, Python, Excel, Tableau, Power BI ☑️ GIS, ArcGis, Geospatial, etc ☑️ Well-researched papers, technical writing, copy writing, Blogs ☑️ Editing, PDF, Image/picture Editing, Proofreading, Microsoft word, PowerPoint. ☑️Wikipedia Page Creation, Wikipedia Publishing, Wikipedia Page Translation ☑️LLMs, Advanced AI models, Machine Learning (ML), MySQL, AI Development ☑️ App and website development via Python, PHP, Java, React, Node. ☑️ Database management. MySQL, SQL, PostgreSQL, etc So why choose me? ☑️ Committed to QUALITY ☑️ Flexibility ☑️ Competitive pricing ☑️ Integrity ☑️ Satisfaction Guaranteed ☑️ Timely delivery Let's collaborate and create something truly spectacular! Reach out to me today, and together, we'll elevate your business to new heights. Trust me, you'll be thrilled with the results. menos -
Contratar Vasilchenko
DATA SCIENTIST / ANALYTICS & RESEARCH LEAD (Finance • ML/DL • LLM/NLP • Computer Vision) | Languages: Ukrainian (native), English (C1) | SUMMARY: Data scientist and analytics leader with 20+ years in applied research/decision support and 7+ years in advanced ML for forecasting, financial modeling, and signal...DATA SCIENTIST / ANALYTICS & RESEARCH LEAD (Finance • ML/DL • LLM/NLP • Computer Vision) | Languages: Ukrainian (native), English (C1) | SUMMARY: Data scientist and analytics leader with 20+ years in applied research/decision support and 7+ years in advanced ML for forecasting, financial modeling, and signal detection. Strong in Python; ML/DL (LSTM/GRU, CNN); NLP/LLMs (Hugging Face, GPT/BERT); and computer vision (OpenCV). Deliver hypothesis-driven experiments, rigorous validation, and stakeholder-ready insights; lead end-to-end delivery and coordinate engineering when production tooling is needed. Domains include trading/FX, macroeconomics, customer/churn analytics, survey & social research, and geospatial market intelligence. Deliverables: reproducible notebooks, APIs, dashboards, and concise executive summaries. Comfortable with KPI design and communicating uncertainty (e.g., VaR/ES, confidence intervals) to non-technical stakeholders. CORE EXPERTISE: Predictive analytics & time series (econometrics, scenario modeling, backtesting); ML/DL modeling & feature engineering; GenAI/LLM pipelines (embeddings, prompt + API integration, text analytics automation); finance analytics (risk/volatility concepts, portfolio optimization fundamentals); research leadership (study design, survey analytics); automation & reproducible pipelines (REST APIs, Docker/Git). | TECH STACK: Python (pandas, NumPy, scikit-learn, TensorFlow/Keras, PyTorch), OpenCV; Hugging Face, OpenAI APIs; SQL/MySQL; Excel (advanced modeling/VBA); SPSS; R; FastAPI/Streamlit; Docker; Git. EXPERIENCE: Independent/Consulting — Data Scientist, Quant & Forecasting (2023–Present): forecasting models for business/finance; trading research and backtesting workflows; NLP/LLM automation prototypes (summarize/classify/extract); owned delivery from requirements to reporting and coordinated specialists when productization was required. Place Intelligence — Analytics Specialist (2020–2023): big-data + spatial intelligence using geolocation signals; pipelines and reporting for commercial and research stakeholders. University of Luxembourg — Research Expert (2018–2022): study design and quantitative analysis for academic projects; publication-ready outputs; rigorous, reproducible workflows. Nielsen (Basis Team), Chicago & 4i — Survey Analytics/Consulting (project-based): survey analytics and sales forecasting (incl. P&G Africa) using econometrics and ML; validated insights for stakeholders. Ukraine — Research Director / Senior Analyst (2000s–2018+): led full-cycle research programs (design→fieldwork→analysis→reporting) across social, political, and marketing research. EDUCATION: National Technical University of Ukraine “KPI” (1998–2005) — System Analyst, BSc (Computer Science). Open to remote/global roles. (EU). menos
