Personal logo of Rene Kärkkäinen

Work Experience

Written by Rene Kärkkäinen on 19.04.2026
Updated on 10.06.2026

I plan to expand these sections with more detailed reflections on my experiences and key learnings. At the moment, the descriptions are fairly brief, but when I have the time, I would like to provide a deeper account of the work I did at each place and the insights I gained from those experiences.

IT Trainee - Metropolia University of Applied Sciences

May - August 2026 | Exploring how Finland’s largest university of applied sciences manages its IT environment for nearly 20000 users across four campuses.

Managing Director - Rene Investments Ab

Dec 2024 - Present | Managing investments, accounting, and ensuring a slow and steady growth of investments.

Guest Lecturer - Helsinki Business College Oy

Nov - Dec 2025 | Teaching a course on computer networks

Account Manager - Junction Oy

Oct - Nov 2025 | Made sure the Junction 2025 partner, the Bank of Finland, is enjoying themselves.

IT Manager - Nordiska Partners Limited

Jun - Jul 2024 | I was responsible for overseeing IT operations and creating new security measures to strengthen the company’s security posture. I optimized the IT budget and managed vendor relations.

IT Trainee - WithSecure Oyj

Oct - Dec 2023 | Maintained computer systems and hardware, analyzed customer data to ensure accuracy and integrity, troubleshooted internal IT issues, and wrote documentation for hardware installation procedures.

Nursing Home Assistant - City of Helsinki

Jun - Jul 2022 | Brightened residents’ days with walks, reading time, and fun outings like disco nights, bingo games, and trips to parks.

Store Assistant - K-Market Rekola

Dec 2021 | Contribute to efficient store operations by assisting with sales, shipment logistics, providing customer service, and ensuring the store maintains a clean and organized environment.

Volunteering and other things

I do volunteer work, for example by building websites free of charge for nonprofit organizations. I have also volunteered at the Slush and Junction events.