Hire the best Data Scientists in Johannesburg, ZA

Check out Data Scientists in Johannesburg, ZA with the skills you need for your next job.
  • $35 hourly
    As a Masters in Data Science student and data analyst, I specialize in analyzing, scraping and visualizing data using tools such as Power BI, SQL, Excel, and Python. My expertise lies in data analysis and visualization, and I pride myself on my ability to translate complex data into easily understandable insights. I am skilled in identifying patterns and trends in complex data, and developing custom dashboards and reports to track key performance indicators. Additionally, I prioritize clear communication and attention to detail to ensure accuracy and understanding for all stakeholders. I work the full gambit of analytics from data extraction and cleaning to data analysis then to visualization and written presentation. My skills include: - Data Visualization using Power BI & Excel - SAS - SQL & SSRS Report Builder - Microsoft Azure - Microsoft Fabric - BigQuery - Octoparse - Web Scraping - Excel - Python - Exploratory Data Analysis - Microsoft PowerPoint Donation: 5% of all bottom-line earnings go to the charity of your choice: Huntington’s Association of South Africa, Living Hope or SOS Children’s Villages.
    vsuc_fltilesrefresh_TrophyIcon Data Science
    Microsoft Excel
    Data Collection
    Data Cleaning
    Python
    Analytical Presentation
    ChatGPT
    Data Analysis
    Business Intelligence
    Microsoft Power BI
    SQL Server Reporting Services
    Data Visualization
    SQL
    Financial Statements Preparation
    Finance & Accounting
  • $65 hourly
    Do you have structured or unstructured data that needs to be analyzed and to give meaning or tell a story?. The projects I have been involved in include using SAS, Tableau, and Microsoft Excel for data mining, manipulation, visualization, and reporting. Some of the work completed includes: - Using correlation analysis to find connections in data ; - Using time series analysis and other models to forecast trends; - Using Excel and Microsoft PowerBI to visualize results in a way that trends are easily identifiable; - Analysing results of surveys to determine trends and to answer business questions; My strength lies in understanding data, trends, reporting how those data elements are connected
    vsuc_fltilesrefresh_TrophyIcon Data Science
    SAS
    Hypothesis Testing
    Analytics
    Data Collection
    Data Cleaning
    Data Modeling
    Data Management
    Data Mining
    Data Entry
    SQL
    Tableau
  • $45 hourly
    I am an accomplished Data Engineer and Data Scientist with a proven track record across diverse industries, offering unparalleled expertise to Upwork clients. My skills in data engineering and data science combine technical proficiency with analytical acumen, allowing me to effectively address a wide range of data challenges. I specialize in transforming complex datasets into valuable insights and actionable solutions, empowering businesses to make strategic decisions and achieve measurable outcomes. My extensive technical toolkit includes mastery of DataBricks, Docker, Terraform, Airflow, Apache Spark, SQL, big data, business intelligence tools (PowerBI, Tableau, Spotfire), and cloud computing platforms (AWS, GCP, and Azure). I am well-versed in Tensorflow, Keras, and SparkML, with a preference for languages such as Python, R, and SQL. Additionally, I am proficient in other data science languages. In addition to individual contributions, I founded Telios Data, a thriving data science shop that unites talented developers. In leadership roles, I've orchestrated the formation of high-performing data engineering and data science teams, streamlining in-business processes for maximum efficiency. Here are some highlights of my achievements: Senior Data Scientist at Liminal Clarity: Pioneered the development of a groundbreaking machine learning cloud application on AWS, reducing deployment time per tenant by an impressive 60%. Spearheaded the creation of machine learning models that not only identified fraudulent behavior but also enhanced client security using open source large language models. Successfully led the development team to produce a product that garnered attention and positive feedback from a prominent South African VC firm. Data Scientist at IT Master: Drove the establishment of data engineering and data science teams, achieving a 40% reduction in deployment time through the introduction of innovative Terraform templates. Engineered a data lake, integrating information from disparate source systems using DataBricks and implementing automated ETL Azure pipelines. Innovatively developed machine learning models that identified sales opportunities and optimized stock levels, showcasing a keen understanding of business dynamics. Senior Data Engineer at Raiffeisen Bank: Translated business needs into automated data models, incorporating data quality checks using Great Expectations and Glue cataloging, ensuring precision for business processes. Implemented robust data security measures, building encryption and decryption functions using Federated queries on AWS Athena, ensuring compliance with GDPR rules. Data Scientist at inQuba: Collaborated with clients to devise unique business solutions, resulting in improved client service delivery, customer retention, and loyalty. Designed and implemented an NLP algorithm parsing customer feedback, leading to a significant 20% improvement in customer satisfaction scores. Worked closely with developers and analysts to create dashboards and reporting for actionable insights. Projects Consultant: Designed and implemented advanced loan matching architecture, introducing a real-time affordability engine using OCR technology, automating a manual process and processing thousands of loans swiftly. Developed innovative algorithms for efficient promotion offerings, boosting customer loyalty and lifetime value by an impressive 15% in the first year. Collaborated with Safaricom on a data migration project to AWS and developed machine learning models for churn prediction. Built pre-fraud detection algorithms and architecture for a major Kenyan telecommunications company, using localstack to optimize development costs. I am passionate about delivering exceptional results and am eager to discuss how I can contribute to your projects and help you achieve your goals. Let's connect and explore the exciting possibilities together.
    vsuc_fltilesrefresh_TrophyIcon Data Science
    Large Language Model
    Neo4j
    SQL Programming
    Amazon Web Services
    Business Intelligence
    Microsoft Power BI
    TIBCO Spotfire
    Microsoft Azure
    Big Data
    Terraform
    Machine Learning
    Apache Spark
    Python
    Tableau
  • $15 hourly
    I am an ambitious entrepreneur , whos experience has been built on over 20 years experience in the sales/marketing and IT sectors. I gained extensive experience in ERP/CRM systems as well as Project Management as an account manager. I set up my own consultant business in 2014 to use and expand on my experience and diversified into web development and social media marketing in 2018. I have also been involved as a Project manager and Business Analyst.
    vsuc_fltilesrefresh_TrophyIcon Data Science
    ERP Software
    Web Design
    Salesforce CRM
    Marketing
    Web Application
    Freelance Marketing
    CRM Software
    Web Development
    Analytics
    Social Media Marketing
    Social Media Management
    Data Analysis
    Business Intelligence
  • $230 hourly
    Welcome to DESIGNATE ADS, your go-to partner for innovative and results-driven advertising solutions. At DESIGNATE ADS, we blend creativity with strategy to craft compelling campaigns that leave a lasting impression. With a focus on Marketing Analysis and Promotion, we are dedicated to helping businesses thrive in today's dynamic and competitive landscape
    vsuc_fltilesrefresh_TrophyIcon Data Science
    Business Planning & Strategy
    Design Concept
    Poster Design
    Business Proposal Writing
    CV
    Microsoft PowerPoint
    Microsoft Excel
    Database Management
    Web Development
    Web Design
    Promotion
    Marketing
    Analytics
    Advertisement
  • $50 hourly
    I studied a BSc (Hons) Chemical Engineering Degree at the University of KwaZulu-Natal and graduated in 2020. I strive for continuous improvement and don't limit myself to engineering fields of work, my passion for technology has enabled me to learn various computer programming languages (C#, Python, HTML, CSS, Bootstrap, SQL) and develop real world applications that help in my process engineering role as well as automate daily tasks.
    vsuc_fltilesrefresh_TrophyIcon Data Science
    Data Analysis
    Manufacturing
    Machine Learning
    Artifactory
    Python
    SQL Programming
  • $30 hourly
    I have 5 year of experience in IT industry in which 3 years as a data scientist. I have good experience in data visualization and in my short career I worked some big names for data visualisations. Machine Learning Expert with specialization in Deep learning (Computer Vision/Image Processing). #Masters in Computer Science Python Expert (keras,pytorch,tensorflow) Data scrapping(beautiful soup, request) Specialized work: Pyspark ETL azure databricks perdictive modelling
    vsuc_fltilesrefresh_TrophyIcon Data Science
    ETL
    AWS Glue
    Artificial Intelligence
    Data Extraction
    PySpark
    AWS Cloud9
    AWS Lambda
    Natural Language Processing
    Machine Learning
    Python
    Computer Vision
    Databricks Platform
  • $25 hourly
    I use Python libraries Selenium, Beautiful Soup and Pandas to scrape data from websites, clean the data, and export it to Excel, CSV or other files for clients. Additionally I can create word clouds for clients looking to do sentiment analysis. I've also scraped reviews from review sites to present to clients as per their requests. In addition to numerous courses I've taken to self-educate, I've completed an online data science certification with IBM as well as a data analysis training with a German training company called Brainnest.
    vsuc_fltilesrefresh_TrophyIcon Data Science
    Selenium
    Web Scraping
    Beautiful Soup
    Data Analysis
    Data Cleaning
    Python Scikit-Learn
    Data Visualization
    Python
    pandas
  • $20 hourly
    GRADUATE, WILLING TO HELP AND EXPAND Y SKILL SET: MY MAIN FOCUS WILL E TO HELP OTHERS, IN NEW TECH SUCH AS WEB 3, CRYPTO MINING AND MANAGING ASSESTS; DATA ENTRY AND HANDLING IN ALL FIELDS.
    vsuc_fltilesrefresh_TrophyIcon Data Science
    Blog Writing
    Investment Banking
    Web3
    Data Analytics
    Crypto Wallet
    Cryptocurrency Mining
    Typing
    Microsoft Excel
  • $40 hourly
    monday.com Certified Partner & Workflow Architect A dynamic and results-oriented monday.com Certified Partner, I excel in transforming complex project management challenges into streamlined, efficient workflows. Currently enhancing my expertise with an Honors BSc degree in Data Science and AI, I combine technical understanding with strategic planning to deliver exceptional results. My Expertise: 1. Strategic Workflow Optimization: I specialize in setting up and customizing monday.com to fit your unique business needs, ensuring a seamless, efficient workflow. 2. Innovative Solutions with Automation: Dive into the world of automation with me! I'll guide you and your team on leveraging monday.com's powerful automation features to revolutionize your daily work life. 3. Streamlining Operations: Say goodbye to repetitive tasks. I focus on process optimization, reducing redundancies, and boosting productivity. 4. Comprehensive Training & Support: My goal is to empower your team with the knowledge and skills to fully utilize monday.com, fostering self-sufficiency and confidence. With a deep understanding of monday.com's versatile platform, I design and implement tailored solutions that align with your company's needs. I prioritize understanding your business inside-out, ensuring solutions are technically sound and align with your business goals and culture. I am experienced in integrating monday.com with a wide range of third-party apps, including QuickBooks, Google Docs, Calendly, and more, to create a cohesive ecosystem for your business. Whether it's Sales & CRM, HR, Marketing, Legal, or Finance, I have the expertise to craft specialized solutions across various domains. Ready to elevate your business with monday.com? Please message me or invite me to a job for a free 30-minute consultation. I'll promptly respond with a Calendly link to schedule our session. Let's discuss your needs, map out a solution, and set a clear timeline and budget. I look forward to partnering with you!
    vsuc_fltilesrefresh_TrophyIcon Data Science
    Project Workflows
    Automation
    Active Listening
    Consultation Session
    Concept Development
    Website Optimization
    Editing & Proofreading
    Email Testing
    Web Testing
    AI-Generated Transcription
    Content Writing
    Mathematics
    Virtual Assistance
  • $30 hourly
    I’m developer experienced in building data models, and Power BI Reports. I come from a background of analytics and project management. If you need assistance with building data models, power bi reports or machine learning models. I can help. Knows Python SSMS (SQL) DAX SSIS I have experience in product management. And clear and regular communication is key.
    vsuc_fltilesrefresh_TrophyIcon Data Science
    Python
    SQL Server Integration Services
    SQL
    Machine Learning Model
    Machine Learning
    Data Engineering
    Data Analysis Expressions
    Data Analysis
    Microsoft Power BI Development
    Microsoft Power BI Data Visualization
    Microsoft Power BI
    Power Query
  • $20 hourly
    SUMMARY Supervised the development of business systems.These include an AI system to annotate and identify problematic sales leads to reduce time in the sale process and automated analytical systems to determine the most ideal sale and buying price in current markets. Visualised data for managers and shareholders to make accurate and decisive business decisions. Captured and reported data and findings of company fleet driver behaviour to the fleet manager. Organised, documented repairs and collected fuel expenditure on company fleet vehicles.
    vsuc_fltilesrefresh_TrophyIcon Data Science
    SQL Programming
    Computer Science
    Machine Learning
    Machine Learning Model
    Artificial Intelligence
  • $30 hourly
    I am a data scientist experienced with building applications and data analysis automation. I am a generalist with start-up experience - if it has to get done, I can figure out how to do it well. * Generalist - From Data Engineering and Data Science to application development. * Scoping and project management.
    vsuc_fltilesrefresh_TrophyIcon Data Science
    Technical Writing
    Back-End Development
    Data Analysis
    REST API
    Flask
    Python Scikit-Learn
    NumPy
    pandas
    PostgreSQL
    SQL
    Snowflake
    Julia
    Python
    Scientific Computation
  • $30 hourly
    I'm Matthew Bowyer, a dedicated Data Analyst and Data Scientist, currently enhancing my expertise with a Master's in Data Science through the University of Essex online. With a solid foundation in data analysis and machine learning from my Honours degree in Data Science, I specialize in transforming complex datasets into actionable insights. Open to basic to advanced work. Just here to help! Professional Highlights: Expertise in Linux and SQL: Proficient in extracting, analyzing, and interpreting complex data to support strategic decisions and drive business growth. Comprehensive Analytical Skills: Developed predictive models and business insights using Python, MySQL, and Tableau, catering to dynamic business needs across Africa. Collaborative Leadership: Built robust collaborations across teams and stakeholders, fostering data-informed decision-making and professional development through continuous learning. Skills & Expertise: Advanced analytics, data management, and statistical analysis. Proficient in Grafana, PostgreSQL, R, and machine learning techniques. Adept at presenting complex findings to enhance operational efficiency and influence strategic planning. Looking Forward: I am eager to leverage my analytical skills and insights to contribute to meaningful projects and collaborations. With a passion for data science and a commitment to professional growth, I look forward to connecting with like-minded professionals and exploring new challenges in the field.
    vsuc_fltilesrefresh_TrophyIcon Data Science
    Tableau
    Grafana
    Visualization
    Data Analytics
    Data Analysis
    Microsoft Excel
    Machine Learning
    Artificial Intelligence
    Analytics
    MySQL
    SQL
    R
    pandas
    Python
  • $30 hourly
    As a data scientist, I bring a wealth of experience in critical thinking, problem-solving, statistical data analysis, data manipulation, and reporting. My expertise in Python programming, scikit-learn, deep learning, SQL, and data analytics has enabled me to analyze complex data sets, automate tasks, and derive valuable insights. I am a seasoned lecturer with 10+ years of experience in teaching chemistry, and recently tech skills. I recently designed, developed and deployed a game-changing SQL project-based learning experience impacting 7000 students in 2023 alone.
    vsuc_fltilesrefresh_TrophyIcon Data Science
    Large Language Model
    Application
    Science
    Data Analytics
  • $7 hourly
    I am a Data Scientist with a passion for turning complex data into actionable insights. With a strong foundation in statistics, machine learning, and data analysis, I excel at: Data Analysis & Visualization: Crafting clear and compelling visualizations that highlight key trends and insights. Machine Learning: Developing predictive models that drive strategic decision-making. Statistical Modeling: Applying rigorous statistical methods to interpret data and inform business strategies. Big Data Technologies: Leveraging cutting-edge tools to handle large-scale data processing. What I Do Best: Problem-Solving: I thrive on tackling challenging data-related problems and delivering practical solutions. Collaboration: Working closely with cross-functional teams to ensure data-driven approaches align with business objectives. Communication: Translating complex data findings into understandable and actionable recommendations for both technical and non-technical stakeholders.
    vsuc_fltilesrefresh_TrophyIcon Data Science
    Model Predictive Control
    Software
  • $35 hourly
    Hey, this is S.Shakir, I'm a Data Scientist with MS Data Science Degree and numerous certifications. I have hands on experience with working on Machine Learning, Deep Learning projects(Scikit-learn, Pytorch, Numpy, Matplotlib, Scipy) and NLP (Time series: LSTM, Transformers) as well as Data Visualization (Tableau). I work on optical character recognition (OCR) related task in my spare time. I'm here to help you with your AI and Data Science related projects and automate your work using data science techniques
    vsuc_fltilesrefresh_TrophyIcon Data Science
    Data Engineering
    Data Science Consultation
    Data Scraping
    Data Labeling
    Data Modeling
    Data Analytics & Visualization Software
    Python
    Data Analysis
    Data Analytics
  • $4 hourly
    As a passionate data science learner and dedicated health researcher, I am driven by a fervent curiosity to explore the intersection of data analytics and healthcare to make meaningful contributions to the field. With a background in Data Analytics Public Health Research, I have cultivated a strong foundation in both quantitative analysis and healthcare research methodologies.My journey into data science began with a fascination for its potential to unlock insights from complex datasets, particularly in the realm of healthcare. Through continuous learning and hands-on experience, I have honed my skills in data manipulation, statistical analysis, machine learning, and data visualization techniques. These skills empower me to extract actionable insights from diverse healthcare datasets, ranging from electronic health records to clinical trials data. In my role as a health researcher, I have had the privilege of delving into various healthcare domains, from epidemiology to public health interventions. My research endeavors have allowed me to tackle pressing healthcare challenges, such as disease outbreaks, healthcare disparities, and treatment efficacy assessments, utilizing advanced analytical methods to derive evidence-based conclusions. With a deep appreciation for the ethical considerations inherent in healthcare data analysis, I am committed to upholding the highest standards of data privacy, confidentiality, and integrity in my work. I recognize the immense responsibility that comes with harnessing the power of data for healthcare decision-making and strive to ensure that my analyses contribute positively to patient outcomes and public health initiatives. Looking ahead, I am excited to continue my journey as a lifelong learner in data science and health research, driven by a steadfast commitment to leveraging data-driven insights for the betterment of healthcare delivery, policy-making, and ultimately, the well-being of individuals and communities.
    vsuc_fltilesrefresh_TrophyIcon Data Science
    Microsoft Office
    Interpersonal Skills
    Communication Skills
    Project Management
    Problem Resolution
    Research Methods
    Data Analytics & Visualization Software
    Data Analysis
  • $8 hourly
    I am highly motivated and eager to learn new skills. I value education and skill building as one of my main priority in my quest to satisfy my employers more effectively. I have accumulated an good knowledge of computers and data related software. I have had three years of computer sciences and graduated from it. I have a good understanding of what it takes to maintain an fully operational construction site. My responsibility was to maintain and operate the site logistics program (Build Smart). All admin and health and safety related work was my responsibility, including the audits and monthly check-ups. I am currently a manager for a company that installs water treatment plants to mining and smelting industries. It is my responsibility to manage the teams and do the on site installation.
    vsuc_fltilesrefresh_TrophyIcon Data Science
    Customer Service
    Product Knowledge
    Customer Support
    Data Entry
  • $20 hourly
    I am a junior professional interested in solving problems and challenging convention using digital innovation. My main interests lie in leveraging off technology to improve processes and providing solutions to clients. I am a tenacious, energetic and motivated learner, consistently looking for an opportunity to develop and gain new skills. Currently, my passion lies in finding solutions using Data and Analytics to bring tangible value to products, services and client - by better understanding these entities.
    vsuc_fltilesrefresh_TrophyIcon Data Science
    Communication Skills
    Artificial Intelligence Ethics
    Business Analysis
    Problem Solving
    Critical Thinking Skills
    Data Cleaning
    Database Management
    Data Warehousing
    Data Mining
    Data Manipulation Language
    Machine Learning
    Python
    Data Visualization
    Statistical Analysis
  • $15 hourly
    I am an Aeronautical(which is a specialised mechanical engineer) Engineering student, with a lot of experience in: -3D modelling ( Autodesk Inventor, Maya ,3ds, Blender ). -Programming ( Matlab, Python, mySQL, HTML, CSS). -Microsoft Excel, Word , Presentation, Database -Report writing with Harvard style of citation, (I can in cooperate other forms of citations if specified). -I have writing and performed many research and development projects.
    vsuc_fltilesrefresh_TrophyIcon Data Science
    Microsoft Excel
    Research Paper Writing
    Writing
    MySQL
    HTML
    JavaScript
    Design Concept
    3D Design
    Machine Learning
    Python
    Mechanical Engineering
    Autodesk Inventor
    MATLAB
    CAD
  • $20 hourly
    SUMMARY A highly skilled and results-driven professional with a proven track record in the field of Business Intelligence. Possess a strong background in data analysis, reporting, and business insights, with a focus on driving data-driven decision-making and fostering an analytics-driven culture. Experienced in managing successful teams, liaising with all level stakeholders, and providing valuable insights across diverse markets. Proficient in a wide range of analytical tools and technologies, including Azure, Power BI, Tableau, SQL Server, and more. A certified SAFe Agilist with a deep understanding of agile methodologies. Recognized for excellence and collaboration in previous roles, with a commitment to operating with a strong sense of ownership.
    vsuc_fltilesrefresh_TrophyIcon Data Science
    Data Analytics & Visualization Software
    Microsoft Excel PowerPivot
    Microsoft SQL Server
    Microsoft Azure
    Analytics
    Data Analytics
    QlikView
    Tableau
    Microsoft Power BI
  • $10 hourly
    I am a data scientist with extensive experience in data analysis, combined with my educational background and passion for leveraging data to drive business decisions. Whether you need data worked on for research/thesis/dissertation or for building machine learning model, I can help. I'm experience with data visualisation and analysis tools such as Power Bi, Tableau, Python, R, SAS, Excel. I can help with building machine learning models. I'm experience in project management from start to finish.
    vsuc_fltilesrefresh_TrophyIcon Data Science
    Microsoft Excel
    Business Analysis
    Project Management
    Python
    R
    SQL
    Tableau
    Microsoft Power BI
    Data Visualization
    Data Analytics
  • $4 hourly
    🌟 Bio: I am Katlego, a dynamic individual with a passion for Software Development and Data Entry. I bring a unique blend of skills and experiences to the table. I excel in English, Web Development as well as Data Entry and thrive in stressful conditions. My journey is guided by a deep commitment to your specifications, and I'm on a mission to build a meaningful relationship with whomever I work with.
    vsuc_fltilesrefresh_TrophyIcon Data Science
    Data Entry
    Software
    Python Script
    Java Collections Framework
    CSS
    HTML
    JavaScript
    Python
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