Hey, I’m Alexander Hagemann!
I build trading & execution systems by day and boot-strap products by night.
Currently I lead engineering initiatives at StoneX Group Inc. a global financial-services powerhouse that sits at No. 66 on the 2024 Fortune 500 list, moving more than $60 billion in annual revenue
“If you’re not embarrassed by the first version of your product, you’ve launched too late.” - Reid Hoffman
What I’m doing now
- Driving payments, trading & execution innovation at StoneX, where my team delivers cloud-native, real-time settlement services for institutional clients
- Founding & scaling Cloudkasten GmbH, my own venture focused on SaaS products (CEO since 2017)
- Speaking & mentoring at conferences, meetups and university capstones on clean architecture, domain-driven design and tech leadership.
How I got here
I’ve spent 15 years moving from .NET backend developer to engineering leader:
| Year | Role & Company |
|---|---|
| 2022 – now | Lead Software Engineer, StoneX Group |
| 2020 – 2022 | Senior Software Engineer, StoneX Group |
| 2017 – now | Founder & CEO, Cloudkasten GmbH |
| 2010 – 2017 | Various engineering & consulting gigs in automotive and e-commerce |
I back-filled the technical chops with an Oxford Executive Leadership Programme and the Oxford Entrepreneurship: Venture Creation course at Saïd Business School.
My Skills & Experiences:
- .NET / C# architecture & performance tuning
- Microsoft Azure, Kubernetes & event-driven micro-services
- Payments & financial-market APIs
- Domain-driven design, CQRS & clean architecture
- Team leadership, mentoring & public speaking
When I’m not pairing on code or writing on alex.rocks, you’ll find me:
- brewing the perfect V60,
- enjoying trips with my family,
- or tinkering with home-lab networking and kubernetes clusters.
Let’s connect - ideas, stories and moon-shots welcome!