Hire the best ETL Developers in Johannesburg, ZA

Check out ETL Developers in Johannesburg, ZA with the skills you need for your next job.
  • $50 hourly
    I am an expert IT professional with a broad skill set including Data Analytics, but I am currently focused on offering specialized services in Advanced Excel and Power BI. My Excel expertise includes development, VBA programming, macros, and handling large datasets, allowing me to automate processes and enhance data management. In Power BI, I create interactive dashboards and visual reports that turn complex data into actionable insights. While I possess advanced Data Engineering skills, my Upwork offerings are tailored to deliver high-impact solutions in these specific areas to support your needs. Additionally, I have extensive experience in Software Development modeling and documentation, including creating detailed Requirements Documents, Functional Specifications, Technical Design Documents, and User Manuals. I ensure that each document is comprehensive and clearly outlines the project scope, technical requirements, and implementation strategies. This structured approach to documentation supports effective communication between stakeholders and smooth project execution.
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    Documentation
    Process Modeling
    Microsoft Power BI
    Microsoft Excel
    Analytical Presentation
    Data Extraction
    Data Analysis
  • $32 hourly
    I'm an experienced Data Analytics Specialist focusing on People data. I have implemented 2 Human Capital systems (Oracle HCM and HR Focus). This includes Business Requirements, Data Migration & User Acceptance testing. I managed the flow of People data into Payroll. Building and publishing interactive reports and dashboards on Power BI. Using Power Query and DAX to perform data transformation and advanced calculations Extracting and Manipulating data through complex codes on SQL Management Studio (including creating & updating tables, views, stored procedures and importing flat files).
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    PowerPoint Presentation
    Excel Formula
    SQL
    Microsoft Power BI
    Data Mining
    Data Extraction
    Analytical Presentation
    Data Analysis
  • $45 hourly
    I am an experienced data enthusiast with a background in Business Analysis, Business Intelligence, and Data Science. Currently pursuing a Master’s in Applied Data Science, I specialize in data analysis, predictive modeling, and machine learning. I help clients make data-driven decisions by delivering clear insights, customized dashboards, and impactful visualizations.
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    System Analysis
    Business Plan
    Project Management
    Project Diagram
    Marketing Analytics
    Competitive Intelligence
    Python
    Requirement Analysis
    Google Cloud Platform
    Data Warehousing & ETL Software
    Machine Learning Model
    Data Extraction
    Data Analysis
    Machine Learning
  • $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
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    AWS Glue
    Artificial Intelligence
    Data Extraction
    PySpark
    AWS Cloud9
    AWS Lambda
    Natural Language Processing
    Machine Learning
    Python
    Data Science
    Computer Vision
    Databricks Platform
  • $8 hourly
    My primary goal is to apply my technical expertise all throughout the full software life cycle to ensure production and delivery of products and services that meet client specifications. One of my objectives is to keep updated with the latest IT trends and technologies. I am confident that if given the opportunity, I can be a useful talent to the company. I am willing to grow within the IT industry focusing meanly on Software and Data Engineering as well as System Analysis.
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    Database
    Database Management System
    ASP
    Application
    Desktop Application
    Data Engineering
    Computer Science
    Virus Removal
    HTML
    CSS 3
    CSS
  • $200 hourly
    OBJECTIVE I am ambitious and would describe myself as an analytical thinker and a good problem solver who is passionate about data analysis, quantifying data, solving real world problems and to drive results. I am interested in entry level (junior/data analyst positions) opportunities to enhance my career by branching into quantitative and qualitative analysis with a focus on data analysis by applying my analytical skills. I am very skilled in Python, Microsoft Word, Excel , Matlab, SQL, and Latex. I am looking for a workplace that will help me to grow as a person and as an employee. PROJECTS Assessing the presence of the TID during a storm The aim of this research was to study the coupling process (mainly AGWs) between the lower and upper atmosphere in the South African middle latitudes using GPS and ionosonde data, in other words to statistically study the effects of gravity waves in influencing the ionospheric electron
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    Script
    SQL
    Microsoft Excel
    Excel Formula
    Python
    Data Mining
    Data Extraction
    Analytical Presentation
    Data Analysis
  • $9 hourly
    As an Analyst at SunBet, a leading online sports betting platform, I use my communication, problem solving, and interpersonal skills to support the Data Analytic team in delivering insights and solutions for various business challenges. As an aspiring Data Scientist as well, I have contributed to multiple projects involving data collection, analysis, visualization, and reporting. I have a Bachelor of Science degree in Mathematics from the University of Pretoria, where I learned how to apply mathematical concepts and techniques to realworld problems. I am passionate about data and analytics, and I am eager to learn and grow in this field. My goal is to become a professional data analyst who can help organizations make datadriven decisions and achieve their objectives.
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    Communication Skills
    Python
    Data Analytics & Visualization Software
    Microsoft Power BI
    Microsoft Excel
    SQL Server Reporting Services
    SQL
    Analytical Presentation
  • $12 hourly
    I am Hlalala Crenacia Maluleke, a Data Analyst passionate about transforming data into actionable insights. With a background in IT and experience in data analysis, machine learning, and predictive modeling, I excel in using tools like Python, SQL, and Power BI to support data-driven decisions. My strong analytical skills, attention to detail, and ability to collaborate effectively allow me to deliver valuable business outcomes. Currently, I am expanding my knowledge in AI to stay ahead in the ever-evolving world of technology.
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    Machine Learning
    Machine Learning Model
    Artificial Intelligence
    Data Mining
    Data Extraction
  • $20 hourly
    I have a 4 years experience in Data Science and Data analytics with a backing of Pricing and Business intelligence.
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    Machine Learning
    Data Extraction
    Data Analysis
    Artificial Intelligence
    Machine Learning Model
    Analytical Presentation
    ETL Pipeline
  • $40 hourly
    Objective Entry level Data Scientist with solid experience in data analysis, statistical modeling, and machine learning. Proficient in Python programming, data visualization, and predictive analytics. Seeking to apply these skills to provide actionable insights and contribute to innovative solutions in a collaborative environment. Projects JPMorgan Stock Price Prediction Developed a predictive model for stock prices using LSTM neural networks, achieving a 15% improvement in prediction accuracy during testing, and demonstrating the potential for data-driven investment strategies. Technologies: Python, Pandas, NumPy, TensorFlow, Jupyter Notebook. Link: JPMorgan Stock Price Prediction Movie Recommender System Created a collaborative filtering-based movie recommendation system, increasing user engagement in a simulated environment by 20%, showcasing the potential for personalized content delivery to enhance user experience.
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    Machine Learning Model
    Machine Learning
    Artificial Intelligence
    Data Analysis
    ETL Pipeline
  • $10 hourly
    Liberty Magara Data Analyst I have extensive experience in Data analysis, optimization and visualization. I possess a wealth of knowledge and skills required to uncover meaningful insights, patterns from data and present it to the right audience. Working with data in the Media and NGO sector, I bring the necessary convergence skills required by any organization to make informed decisions using data. My deepest desire is to work in an environment where i can utilize my skills to help my organization achieve results using data.
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    ETL Pipeline
    Analytical Presentation
    Data Mining
    Data Extraction
    Data Analysis
  • $10 hourly
    Obriel has over 2 years of experience in Power BI, providing end-toend business intelligence solutions through dimensional modeling design, building business models, configuring metadata, and creating reports and interactive dashboards. He has expertise in DAX calculations, SQL, data modeling, data visualization, and data transformation into valuable insights using Power BI Desktop and Power BI Service.
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    Business Intelligence
    Business Analysis
    Data Modeling
    Data Transformation
    Data Analysis Expressions
    Microsoft Power BI Data Visualization
    Microsoft Power BI
    SQL
    Analytical Presentation
    Data Mining
    Data Extraction
    ETL Pipeline
    Data Analysis
  • $17 hourly
    As a Microsoft Certified: Power BI Data Analyst Associate, I'm fueled by my passion for analysis and storytelling. With a background in Commerce and extensive training in Data Analysis, I offer a unique perspective for conducting thorough analyses. My ability to extract meaningful insights and communicate them through data visualization techniques is matched by my business acumen. I'm committed to creating compelling business cases and driving initiatives forward as a self-starter. Moreover, as an aspiring social entrepreneur, I'm driven to make a positive impact through innovative solutions and collaborative efforts. My journey extends beyond business intelligence into leadership and social entrepreneurship, where I aim to create meaningful change. KEY COMPETENCIES Using Power BI to model the data and create Interactive Reports Experience with Power Query and DAX in Power BI I also have Microsoft SQL Server experience and I am proficient in Database softwares as well as Writing SQL queries for analysis
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    Data Analytics
    Query Analysis
    Microsoft SQL Server
    Apache Superset
    Data Visualization
    Microsoft Power BI
    Data Analysis
  • $6 hourly
    I am Data and BI engineer specializing in data cleaning and analytics, as well as python automation and process automation. I have gained experienced in the different development cycles of the agile and waterfall methodology, as well as the life cycles of data and databases. I am fluent in the following programming languages including Python, MySQL, PLSQL, HTML5 and DAX. I also have a background in Artificial Intelligence and Database management. Thus making me more versatile and flexable in the working enviroment. Not forgetting that I have been exposed to DevOps practises, which adds to my basket of skills.
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    R
    Oracle PLSQL
    SQL
    Python
    Data Extraction
    Data Analysis
  • $65 hourly
    I am Senior Data Analytics Consultant who has worked in different industries. Have led and worked with teams of experts to deliver insights and results well on time to the satisfaction of various clients.
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    Analytical Presentation
    Data Analysis
    Data Mining
    ETL Pipeline
    Data Extraction
  • $35 hourly
    I'm a data scientist with a strong foundation in analytics, specializing in helping businesses unlock the power of their data. Whether you need to optimize operations, uncover actionable insights, or implement cloud-based solutions, I can deliver results tailored to your needs. * With proficiency in Python, SQL, Microsoft Azure, and cloud technologies, I handle everything from data preprocessing to advanced analysis and visualization. * Full project management from start to finish * Clear and consistent communication is essential to me, so let's stay connected throughout your project!
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    Machine Learning
    Microsoft Azure
    Azure Machine Learning
    pandas
    NumPy
    Python
    SQL
    Data Mining
    Data Analysis
    Data Extraction
  • $19 hourly
    As a skilled Data Engineer, I specialize in maintaining, manipulating, and updating data within databases. My expertise lies in creating structured, modular procedures/functions using Python, SQL, and PL/SQL that can be seamlessly reused across multiple applications and data pipelines. Here are some key highlights of my experience: Data Pipeline Design and Implementation: Proficient in designing and implementing efficient data pipelines using Python. Developed and maintained data pipelines to ingest, process, and analyze large volumes of data, resulting in significant reductions in processing time. Data Quality and Governance: Implemented data quality metrics and automated checks to enhance data accuracy. Collaborated with cross-functional teams to maintain data governance policies and data security protocols, ensuring compliance with industry regulations. Data Visualization and Reporting: Developed and maintained data visualization tools to support data analysis and reporting across the organization. Created data models and ETL processes to extract, transform, and load data into data warehouses. Technical Skills: Proficient in Python, SQL, Scikit-learn, Pandas, Seaborn, Matplotlib, and Numpy.
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    Python
    Oracle
    ETL Pipeline
    Business Intelligence
    SQL
    Oracle Programming
    Microsoft Power BI
    Data Extraction
    SQL Programming
    Oracle Database
    Oracle PLSQL
  • $30 hourly
    I'm an experienced developer, data engineer, and Head of Tech/IT at InfoDasher, a data-driven company based in Johannesburg. I specialize in transforming raw data into actionable insights, with a focus on data processing, business intelligence, and dashboard development. My core expertise includes: • ETL (Extract, Transform, Load) Processes: I work with large datasets, building data pipelines that automate data extraction, cleaning, and classification. • Web Development & UI Design: I specialize in creating top-tier UI designs for websites and developing seamless backend and frontend architecture, including client portals with login, authentication, PHP, SQL, and Git integration. • Custom Business Portals: I develop tailored portals for data entry, submission, and client management, integrating dashboards and downloadable reports for easy access to cleaned data. • Business Intelligence Solutions: I design bespoke dashboards and visualization tools, helping businesses like Namib Mills and SAB InBev optimize their operations and make data-driven decisions. You can see examples of what I have developed and currently manage at wherwe.com and infodasher.com. I lead the development of web architectures and design the technology and system UI for client portals. I'm passionate about using innovative solutions to streamline processes and improve efficiency, and I’m always open to new opportunities for collaboration.
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    Data Collection
    Data Cleaning
    Data Analytics & Visualization Software
    PHP
    SQL
    Web Development
    Web Design
    Analytics Dashboard
    ETL Pipeline
    Data Extraction
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