Portfolio

Data scientist and BI developer experienced in building end-to-end data analytics products to provide essential data insights and business reporting. Looker enthusiast.

My background is in financial reporting and project management. Currently I work in a Portuguese tech company helping them set up an end-to-end business intelligence ecosystem and make the decisions more data informed.

Most recent projects I developed were done in Looker, and I am on my way to get LookML developer certification. I have a Master's degree in Data science and Advanced Analytics from NOVA IMS in Lisbon (my first degree was linguistics!). I am passionate about getting things done and making the best use of data to solve real-life business challenges. I believe that combining pragmatic business mindset and attention to details can make a big difference.
I can help apply effective analytical methods to business problems, interpret the results and identify potential improvements. You can check examples of my projects below.

Outside of data science I enjoy hiking, sailing and am an amateaur photographer. I am also learning Portuguese as I would love to start speaking the language of my host country.

Things I Can Do

I can help bring meaning to data and translate business questions into analysis tasks and projects. I will identify and help resolve data quality issues.

  • Exploratory Data analysis
  • Data visualization
  • Customer analytics
  • Market analytics
  • Predictive modeling
  • Cohort analysis and churn
  • Web analytics

Tools and methods

  • Looker and LookML
  • Google BigQuery
  • Python
  • R
  • PowerBi
  • HTML & CSS
  • MySQL
  • SQL and MongoDB
  • Excel
  • Prince2 Practitioner

Projects

Sample of my past work.

Coming soon...

Contact me for details on the most recent BI projects developed based on BigQuery+Looker integration with SQL, MongoDB, Google Analytics, Google sheets, Salesforce as data sources.

Market demand forecasting for private transfers company

Using past booking data developed demand forecast model to predict number of expected services 8 weeks in advance, in order to give the company enough time to hire the drivers. Project required a lot of feature engineering and data transformations, and final model was able to predict with maximum deviation of 10% from true demand. Find out more here

Product Recommendations using Google Pagerank

Developed predictive model for an e-shop which shows list of recommended products at check-in based on individual customer shopping history and the list of products customer was likely to forget at check-out. Model adapted from Google pagerank algorithm. Find out more here

Customer segmentation for hospitality industry

Conducted customer analysis using k-means clustering. Identified customer behaviour patterns and produced a report on customer characteristics for each segment which identified opportunities for target marketing. Find out more here

PowerBI Dashboard for a global retail company

Built business dashboard focusing on Sales & GP Analysis and Product and Market analysis identifying key KPI metrics. Project included building ETL Pipeline, defining dimensional schema and creating interactive executive dashboard. Find out more here

Visualizing kickstarter projects

Built an interactive visualization using Plotly and Dash to show some interesting insights and metrics of how kickstarter projects perform. Based on kaggle dataset (view). Check out the visualizations here: Explore Kickstarter

Contact Me

I am open for free-lance work and project collaborations. Drop me an e-mail at: sasha-or@hotmail.com