Freelance iOS Developer

• PAYBACK GmbH: PAYBACK app - a loyalty bonus program and customer card that allows users to collect points. My responsibilities includes:

• Enhanced the application's architecture by restructuring and modularizing it.

• Refactored and improved complex features using SwiftUI and The Composable Architecture.

• Maintaining, bug fixing, optimizing, troubleshooting, and continuously improving the app.

• Facilitating and planning the onboarding of new developers and providing mentorship.

• Assistance in the hiring process, including evaluation, interviews, and strategic planning.

• Porsche Digital GmbH: Development of the Porsche Road Trip - an app that allows users to comfortably plan and navigate through spontaneous drives and individual road trips along curated premium routes.

• KI Labs: Development of a MVP for a large automotive company.

• Snapp Mobile Germany GmbH:

• Equitel Banking - Consumer digital banking app for Equity bank, one of the largest banks in Sub-Saharan Africa.

• comdirect Mobox - Banking App to manage Current, Savings and Credit Card accounts for teenagers. Addressed technicalities of implementing playful UI with customizable options and various offline features.

• Deutsche Bahn AG - Development of a prototype for the next generation of companion app for train travellers.

• optile GmbH: KPI Dashboard - KPI tracking of online payments for merchants that use optile's online payment solutions.

• Every Interaction: Watchy - Composer of Apple Watch screenshots, which allows users to export the composed image and share it.

b.telligent is an IT consultancy based in Munich. We developed cutting-edge web-based applications with a focus on outstanding user experience. During this time my responsibilities included:

• Technical lead for a small team, successfully developing and delivering high quality web applications greatly improving client processes.
• At our largest client (o2 Germany) we delivered several complex applications for a user-base of over 1000 users with a team of 3 developers using Spring, Oracle and JSF with a self-developed GUI toolkit.
• Design and implementation of software solutions using User Centered Design (UCD) methodologies including user interviews and development of wireframes.
• Development of a workflow-driven recruiting management system capable of handling over 100.000 applicants per year using Spring, Ext-GWT, Hibernate and MySQL.
• Development and delivery of Spring Framework training within the company.
• Actively participated in recruiting new team members.

As one of Europe's largest price comparison portals, Ciao GmbH has over 12 million monthly visitors.

• Responsible for recoding, optimizing and maintaining the site's front-end interface using web standards-compliant technologies such as XHTML and CSS and JavaScript.
• Search Engine Optimization (SEO) Techniques.
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Developed client-side solutions and back-end functionality using JSP. Clients included hemel.se (now called Fortum), endesa.com and SJ Ung.

• Template development and JSP integration for Birka HemEl web portal.
• Cross-browser DHTML game development for a campaign of Swedish artist Ernst Billgren's website.
• Development of client-side functionality in Madrid for Endesa, an electric utility company in Spain.