Leonard Scharf
iOS Developer
LinkedInAbout Me
iOS developer based in Berlin with a background in QA engineering. I enjoy building products end-to-end, from backend APIs to native apps. Outside of work, I run a European transit platform as a side project.
Languages: German (Native), English (Professional), Spanish (Basic), Bahasa Indonesia (Basic)
Current Work
DKB Banking App
Germany's second-largest direct bank
Native iOS banking application for Deutsche Kreditbank (DKB). Contributing to one of Germany's most-used banking apps as iOS developer and leading cross-team architectural decisions as Software Architecture Guild Lead.
Feature Development
Building and shipping user-facing features in Swift and SwiftUI for the DKB Banking and Brokerage experience.
Architecture Guild Lead
Leading DKB's Software Architecture Guild. Driving architectural standards, evaluating new patterns, and aligning teams on technical direction across the organization.
Quality & Hackathons
Ensuring high code quality with ISTQB CTAL-TAE certification. Active contributor at DKB Code Factory hackathons.
Hobby Projects
Abfahrt!
Real-time transit departures across Europe
A transit platform covering 28 European countries and 130+ cities, with nationwide coverage in Germany, the UK, Netherlands, Norway, Finland, Ireland, and Luxembourg. Built around a central API that powers multiple client applications.
Transit API
Cloudflare Worker serving real-time departures via REST. The backbone of the entire platform.
api.abfahrt.now →iOS App
Native SwiftUI app with Live Activity on the Lock Screen, background push updates, and home screen widgets.
App Store →
Pebble Smartwatch App
Officially supported by Pebble. Departure board on your wrist with automatic location detection.
Pebble App Store →Kiosk Display
Plug-and-play departure board for business lobbies. Auto-refreshing, runs on any screen with a browser.
Learn More →
mydealz Top Deals
Chrome extension that displays the hottest deals from mydealz.de. Features configurable deal count, automatic refresh, and clean popup interface for quick deal browsing.
Chrome Web Store →
Bauhaus Time
Pebble watchface inspired by the Bauhaus design movement. Procedurally drawn digits using pure geometric shapes without fonts or image resources.
Pebble App Store →
Bauhaus Round
Pebble Time Round watchface with angular geometric forms and the classic Bauhaus color palette. Colored geometric symbols using only rectangles, squares, and triangles.
Pebble App Store →Let's Connect
Feel free to reach out and connect with me on LinkedIn.
LinkedIn Profile