MSc Information Sciences (VU Amsterdam). Data professional skilled in Python, Power BI, SQL, and stakeholder-focused analytics. I build efficient ETL pipelines and create insights that empower business decisions.
I'm Marcus, a Dutch-Brazilian data professional with a strong academic foundation and hands-on industry experience. I specialize in transforming complex data into actionable insights using modern tools and technologies.
I've worked on data projects at KATE Innovations and Cargill, ranging from dashboarding to backend ETL optimization. I'm passionate about clarity, efficiency, and communication through data.
Custom websites for clients with responsive design, CMS integration, and SEO optimization.
Building automation bots and AI solutions to streamline business processes and improve efficiency.
Extracting insights from data to help businesses make informed decisions and optimize their operations.
Spearheaded the development of a scalable data analysis framework, automated data retrieval with Python, and implemented end-to-end ETL pipelines. Delivered strategic insights through Power BI dashboards and formalized documentation for internal knowledge transfer.
Building custom websites and web applications for clients across various industries. Specializing in responsive design, performance optimization, and creating intuitive user experiences with modern web technologies.
Developed interactive dashboards and optimized self-service analytics. Executed a research project on license distribution, leveraging Tableau and SQL to drive internal efficiency and insight delivery.
Led the migration from Qlik Sense to Power BI. Assessed tool suitability, advised on integration within Microsoft's ecosystem, and delivered a complete transition roadmap with measurable reporting improvements.
Built a predictive dashboard for Olympic sailing performance, using Python and machine learning to forecast meteorological patterns. Translated data models into real-time insights for coaching teams.
Welcoming guests, preparing and serving drinks, handling payments, and maintaining a clean bar area. Provided excellent customer service and created a pleasant atmosphere for guests.
Conducted COVID-19 source and contact investigations, provided guidance to affected individuals, and maintained detailed records of investigations.
Restocked shelves, maintained store cleanliness, assisted customers, and trained new employees. Ensured smooth store operations and excellent customer service.
Welcomed guests, served food and beverages, handled payments, and mentored new staff members. Provided excellent customer service in a high-end restaurant environment.
Mentored students, prepared and delivered sports lessons, and fostered enthusiasm for physical activities. Supported students in developing their athletic skills.
A full-stack e-commerce solution with React frontend, Node.js backend, and payment integration.
Analytics dashboard aggregating data from multiple social platforms into a unified interface.
Custom LMS platform featuring interactive courses, progress tracking, and community features.