Olli Kortelahti

Worked as a data engineer for a cloud kitchen startup with focus on developing the company's data warehouse and bringing accurate and reliable data to be used for analytics by stakeholders.

Worked as a data engineer developing a product that automates the handling of purchase invoices using artificial intelligence. Developed multiple new features while working closely with the end customers. Improved and automated internal processes.

Worked on a project combining data science and software for one of the largest furniture retailers in the world. Worked in three different roles: first as a software engineer with a DevOps focus, second as a software engineer with a data science focus and third as a data engineer lead of five engineers. Led the technical implementation of a critical part of the system being built.

Did data analysis on customer service bot usage patterns and created a web application for presenting the results of the analysis to the users. Helped a junior developer to succeed in their work on the project.

Did explorative data analysis on patients' sleep cycles from sensory data for a healthcare IoT start-up. Played a crucial part in implementing a data ingestion pipeline for sensory data.

Developed a web application aiming to provide tools to automate and increase the effectiveness of the work of financial auditors. Did data analysis work combining records of working hours and financial data in order to spot inaccuracies in working hour reporting. Organised a weekly programming course for financial and performance auditors to help them automate repetitive tasks in their daily work.

Automated several reoccurring and error-prone processes of a financial reporting team saving the team multiple man-days per month.