I'm Jonathan — a 27-year-old dual Swiss-Swedish commercial operator who builds programs at scale. Currently owning a $20M+ portfolio at Samsung Electronics across the Nordics. Dual Master's from Korea University and Cornell. Five countries, four languages, one relentless drive to grow.
$20M+
Portfolio Under Management
102%
Lead Generation Growth
5
Countries Lived & Worked
52%
Cost Reduction Delivered
From Bogotá to Stockholm —
building what others merely manage.
The operator mindset.
I don't just execute strategy — I own it. At Samsung I scaled a solutions portfolio from $3.7M to $6M+, cut costs by 52%, and drove triple-digit order volume growth across 4 markets. At EF Korea I delivered a 102% uplift in lead generation in under 8 months.
The global edge.
Five countries. Four languages. Dual Master's degrees across two continents. I've never just lived in markets — I've led in them. That's what separates execution from real commercial ownership.
Personal
Projects.
GarageApp — Mobile Product Build
From concept to App Store: designed, architected, and shipped a data-driven vehicle telemetry app. Full product ownership — roadmap, UI/UX, API integration, and predictive analytics dashboards. Built in React Native and Expo.
Athena — Private AI Infrastructure
Engineered a fully private, self-hosted AI desktop application running Qwen 2.5 14B Instruct — zero cloud dependency. Native PySide6 interface with real-time web search integration built directly into the model pipeline. Deployed on self-hosted Fedora/Docker.
Real Estate Portfolio — Co-Investor
Co-managing a €5M+ investment portfolio across 3 countries. Responsible for acquisition strategy, financial modeling, P&L oversight, and operational management of commercial and residential assets.
PATH
2017
Tokyo Bound
Moved to Japan to study International Business at Tokyo International University — the start of a global education and a hunger for environments that challenged everything I knew.
2019
Seoul Next
Transferred to South Korea's Kyungsung University. Deepened APAC market fluency, built Korean language skills, and built a cross-continental professional network.
2023
Dual Master's
Graduated with an MSc in International Management through the CEMS Global Alliance — Korea University Business School and Cornell University. Awarded Certificate of Outstanding Service & Leadership.
2024
102% Growth
At EF Education First Korea, rebuilt digital marketing strategy from the ground up. Lead generation up 102%. CRM retention up 20%. Referral conversions up 382.6%. In under 8 months.
2025
Commercial Ownership
Joined Samsung Electronics as Growth Lead. Took P&L ownership of Samsung Flex, Trade-In, and Care+ across 4 Nordic markets — scaling the portfolio from $3.7M to $6M+ and cutting costs by 52%.
Now
Scale & Lead
Overseeing a $20M+ multi-category portfolio across Mobile, Laptops, Tablets, and Wearables. Co-leading a €5M+ real estate portfolio across 3 countries. Always building.
Global
Footprint.
Colombia → Switzerland → Sweden → Japan → Korea → USA → Korea → Sweden
5 languages. Adapts to every timezone, culture, and market.
Beyond
the Office.
Cars
For me, cars aren't just engineering marvels or art on wheels — they're where I think. There's something freeing about driving without a destination, seeing the world through the windshield instead of a plane window.
Watches
My love of watches comes from the sheer craftsmanship required to build something that 'just' tells the time. In the digital world we live in, a mechanical watch keeps me grounded — a reminder that true quality takes genuine time and effort.
Traveling
Having lived in 5 countries, I believe there's something irreplaceable about experiencing other cultures firsthand. Traveling isn't just sightseeing — it's the fastest path to perspective, adaptability, and genuine understanding of the world.
Ask Me
Anything.
Have a question before reaching out? My AI knows my career, projects, and background inside out. Ask what drives me, what I've built, or what I'm looking for next.
Let's
Talk.
Looking for a commercial operator who builds programs from scratch, owns P&L, and actually delivers? Let's connect.
© 2026 Jonathan Ernst