The Mission: Democratize Investing for Everyone
When I joined BUX as a founding iOS engineer in 2017, retail investing was complex, expensive, and intimidating. Traditional brokerages charged high fees and offered confusing interfaces that scared away everyday investors.
Our mission was clear: build a mobile-first investment platform that makes trading stocks, ETFs, and fractional shares as simple as using any other app on your phone.
What I Built: Features That Changed Everything
The Investment Plan (2019)
- The Problem: Users wanted to invest regularly but found it difficult to maintain discipline
- My Solution: Automated monthly savings and investment system with compound interest tracking
- Impact: Became BUX’s most popular feature, driving 40% of new user onboarding
The Newsroom (2020)
- The Problem: Investors needed relevant, timely information to make decisions
- My Solution: Personalized news feed with financial calendar integration
- Impact: Increased user engagement by 65% and reduced support tickets about market events
Advanced Charting System (2021)
- The Problem: Mobile apps typically offered basic charts, limiting serious analysis
- My Solution: Full-featured charting with technical indicators, customizable timeframes, and professional-grade tools
- Impact: Attracted institutional users while remaining accessible to beginners

The Results: From Startup to Market Leader
Scale Achieved:
- 1M+ active users across 9 European countries
- €2B+ in assets under management
- Successful Series B funding based on iOS app traction
Technical Excellence:
- 4.8★ App Store rating across all markets
- 99.9% uptime during high-volume trading periods
- Real-time data processing for thousands of simultaneous users
Why This Experience Matters
Founding Team Impact: As one of the first engineers, I shaped the entire technical architecture and product direction that scaled to millions of users.
Full-Stack Product Thinking: Designed features from user research through technical implementation to business impact measurement.
Fintech Expertise: Deep understanding of financial data, regulatory requirements, and trading system architecture.
Mobile-First Innovation: Proved that complex financial products can be reimagined for mobile-native experiences.
The Transition: From Engineer to Product Leader
My success building these features led to my promotion to Product Manager, where I applied my technical knowledge to drive product strategy and team leadership.
Ready to bring this combination of technical depth and product vision to your team? Let’s discuss how I can help you build the next generation of user-focused products.