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Raphael Silberzahn

App Developer & Product Designer

Raphael Silberzahn
Barcelona, Spain

Experience

App Developer & Product Designer

Independent

  • Develops iOS applications using Xcode and SwiftUI as a member of the Apple Developer Program
  • Builds MVPs for digital products combining AI-driven interfaces and user-centric design
  • Creator of Famiva, a family-sharing and micro-donation app integrating Stripe Connect, Supabase, and Backblaze B2
  • Manages secure data and payment management systems

Strategic Consultant & AI Systems Developer

Independent

  • Designs AI-powered business systems combining structured databases, LLMs, and workflow automation
  • Leads API development to integrate HR, CRM, and analytics systems
  • Implemented UKG Ready platform integration for workforce data visibility
  • Focus on ethical AI implementation, transparency, and GDPR compliance

Founder | Product & Innovation Manager

Natural Intelligence, Mylash

  • Founded and managed cosmetics and e-commerce business distributed via Amazon FBA
  • Oversaw sourcing, compliance, VAT, and digital marketing
  • Developed AI color-recommendation system for cosmetics and fashion (US patent pre-filing)
  • Managed full product lifecycle from concept to distribution
France

Interim Head of Marketing | Brand Expansion Lead

Recent International Brand

  • Coordinated international brand rollout across multiple markets
  • Built partnership and KOL strategies with kindergartens, influencers, and educators
  • Managed omnichannel marketing campaigns and creative direction
  • Automated IT pipelines generating localized media content
Germany

Corporate Project Manager

Siemens

  • Assisted the Germany Head and Global Head of Application Management (2,000 employees worldwide)
  • Developed global KPI systems and managed merger preparations
  • Coordinated cross-country collaboration across 20 subsidiaries
  • Focused on IT governance, performance metrics, and digital process integration
Cambridge, United Kingdom

Academic Researcher & Lecturer

University of Cambridge

  • Conducted research in organizational behavior and strategy; published in Nature and covered by Harvard Business Review and The Economist
  • Led a two-year, 28-team quantitative study on coordination and leadership
  • Taught MBA, Executive MBA, and PhD programs to up to 680 students

Summary

Strategic consultant, researcher, and product innovator with 15+ years of international experience connecting AI implementation, organizational behavior, and business strategy. Combines academic rigor, quantitative and qualitative analysis, and hands-on development experience to help organizations align technology, leadership, and growth. Background spans corporate leadership at Siemens, academic research at Cambridge, and entrepreneurial ventures in AI systems, HR technology, and app development.

Skills

  • Ai Strategy & Implementation | Organizational Behavior & Leadership

  • Quantitative & Qualitative Research | Corporate It & Kpi Systems

  • Api Development & System Integration | App Development & Xcode

  • Product & Innovation Management | Hr Tech & Workforce Analytics

  • Mvp Creation & Prototype Design | Marketing Strategy & Omnichannel Campaigns

  • Benchmarking & Survey Development | Coaching & Leadership Development

  • Cross-cultural Management

  • Ai & Platforms: Claude Code, Gemini, Openai Platforms, Midjourney, Stable Diffusion, Flux

  • Development: Python, React, Xcode, Swiftui, Api Development, Rest & Graphql

  • Integration: Supabase, Stripe Connect, Ukg Ready Platform, Xero, Wise Banking, Backblaze B2, Cloudinary

  • E-commerce: Amazon Fba, Apple Developer Program

Languages

German
Native
English
Advanced
Spanish
Advanced
French
Intermediate
Italian
Intermediate
...and 1 more

Education

University of Cambridge

MPhil in Innovation, Strategy & Organization · Innovation, Strategy & Organization · Cambridge, United Kingdom

University of Cambridge

PhD in Management · Management · Cambridge, United Kingdom

Certifications & licenses

Apple Developer Program

Apple

Profile

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Frequently asked questions

Do you have questions? Here you can find further information.

Where is Raphael based?

Raphael is based in Barcelona, Spain.

What languages does Raphael speak?

Raphael speaks the following languages: German (Native), English (Advanced), Spanish (Advanced), French (Intermediate), Italian (Intermediate), Dutch (Elementary).

What roles would Raphael be best suited for?

Based on recent experience, Raphael would be well-suited for roles such as: App Developer & Product Designer, Strategic Consultant & AI Systems Developer, Founder | Product & Innovation Manager.

What is Raphael's latest experience?

Raphael's most recent position is App Developer & Product Designer at Independent.

What is Raphael's education?

Raphael holds a Doctorate in Management from University of Cambridge and a Master in Innovation, Strategy & Organization from University of Cambridge.

Does Raphael have any certificates?

Raphael has 1 certificate: Apple Developer Program.

What is the availability of Raphael?

Raphael is immediately available for suitable projects.

What is the rate of Raphael?

Raphael's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.

How to hire Raphael?

To hire Raphael, click the Meet button on the profile to request a meeting and discuss your project needs.

Average rates for similar positions

Rates are based on recent contracts and do not include FRATCH margin.

1000
750
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Market avg: 710-870 €
The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.
Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.