Olli Kortelahti
Olli is a software engineer with extensive experience building data-related products and services. He can deliver software end to end, from mapping user needs to deploying the solution to the cloud. He values thought-out software development processes and enjoys working on roles where he can help other people succeed in their work.Work
Kone Corporation
October 2023 -Data Engineer (contract)Worked on multiple different data related projects with focus on improving ways of working and technical execution enabling the teams to succeed in their goals.Huuva
June 2023 - October 2023Data Engineer (contract)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.Snowfox.AI
August 2022 - March 2023Data Engineer (contract)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.IKEA
August 2020 - May 2022Software Engineer (contract)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.Rare Agency Oy
June 2020 - August 2020Software Developer (contract)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.Veracell Oy
June 2020 - July 2020Data Engineer (contract)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.National Audit Office of Finland
May 2019 - May 2020Project AdvisorDeveloped 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.The Finnish Government Shared Services Centre for Finance and HR
May 2018 - October 2018TraineeAutomated several reoccurring and error-prone processes of a financial reporting team saving the team multiple man-days per month.
Skills
- Data EngineeringApache SparkAWS AthenaAirflowBigQueryPostgreSQLApache Beamdbt
- Programming LanguagesPythonScalaTypeScriptHaskell
- DevOpsTerraformCI/CDKubernetesDocker
- Cloud ComputingGoogle Cloud PlatformAmazon Web Services
Languages
- FinnishNative
- EnglishProfessional
Education
Tampere University
September 2014 - February 2020Master
Administrative Sciences
Tampere University
September 2020Master
Computer Science