Shipped work
Three case studies across fintech, e-commerce, and hospitality. Each with quantified results and a clear account of the engineering decisions that produced them.
−40%
P95 API latency
50k+
AUM users impacted
The iOS app for a regulated German wealth platform was under-performing on API response times, directly affecting user confidence in a context where speed is a proxy for trust. I profiled, root-caused, and restructured the iOS networking layer — reducing P95 latency by 40% without changing a single backend endpoint.
4.1★
App Store rating
8 wks
Kickoff to App Store
A multi-brand fashion retailer had an iOS app sitting at 2.8 stars with a legacy UIKit codebase, a broken checkout flow, and no Apple Pay support. I delivered a full SwiftUI relaunch in 8 weeks — taking the App Store rating to 4.1 stars and improving D30 retention by 28%.
−35%
Support tickets
60%
Queries resolved autonomously
A hospitality technology company wanted to reduce customer support load by adding an AI booking assistant to their existing iOS app. I integrated a server-side LLM pipeline, designed the conversational UX with streaming responses, and built graceful fallback flows for when the model was unavailable — reducing support tickets by 35%.