● Built and scaled B2C iOS products across location tracking, parental control, and AI assistant domains. ● Redesigned Findo and launched key location features, increasing monthly revenue from $40K to $200K. ● Improved application stability by fixing 20+ critical issues and increasing crash-free rate from 95.5% to 99.95%. ● Migrated 4 core services from Objective-C to Swift, completing 100% of legacy code migration. ● Optimized third-party infrastructure costs by replacing an SDK, reducing monthly expenses from $15K to $3K. ● Built KidSure from scratch and launched the parental control application in the App Store.

● Architected a scalable white-label iOS platform, enabling 13 branded apps serving 1M+ users. ● Led a team of 5 iOS developers, driving architecture decisions, mentoring, and engineering improvements. ● Built a reusable design system, launching the first app in 2 months and scaling to 13 customers. ● Automated CI/CD workflows for 13 iOS applications, enabling QA-ready TestFlight builds within 10 minutes. ● Launched Deutschlandticket app in 2 weeks, generating €1M+ in the first month.

● Developed iOS ticketing apps using Swift, UIKit, MVVM, REST APIs, Firebase, and Unit Testing. ● Designed scalable white-label architecture supporting multiple carriers and tariff models. ● Resolved complex ticket pricing issues, improving reliability across 60+ transport operators.

● Implemented telematics features for trip tracking, driving analysis, and insurance scoring. ● Built reusable UI components, improving code quality through design systems, code reviews, and accessibility.

● Fixed a critical CoreData sync issue with 100MB+ data transfers, eliminating crashes for thousands of users. ● Improved reliability through bug fixes, accessibility, and automated testing across iPhone, iPad, and TV.

● Built Tesla navigation with real-time route sync across iOS, Android, and in-car systems at <200ms. ● Optimized a Swift/CoreML face recognition pipeline, increasing iPad processing speed from 1 to 3 FPS.