Pann Cherry

• Drove a 9% lift in paid order volume and 8.1% increase in paid buyers by architecting and launching "Neighborhood Filters" feature enabling users to filter search results by specific boroughs and scaling the feature across all global locales. • Boosted "Event Likes" engagement by 49.3% by redesigning the iOS Search experience with a new Grid Card layout and improved information hierarchy, successfully validating high-intent user behaviors. • Led the integration of GenAI/LLM features into mobile search, developing a Natural Language Search Chatbot and Event Autocomplete to capture high-intent user queries. • Executed 14+ high-velocity A/B tests using Statsig (including Price Visibility, Map Views, and UI overhauls), utilizing data to permanently adopt successful features like the "Pill UX" search bar while deprecating low-impact features to minimize technical debt. • Optimized mobile revenue strategy by collaborating with Data Science to rigorously test checkout flows, resulting in the strategic rollout of high-value features and the reversion of metric-negative experiments to protect CVR and paid orders.

LEX is a platform that turns real estate buildings into public stocks. As a lead iOS Engineer, I spearheaded the development of LEX’s real-time investment platform. I owned the complete technical roadmap, transforming a concept into a scalable, secure fintech product. I designed the app architecture to handle complex financial states while ensuring 99.9% uptime and high-performance rendering for stock charts. • Architected and launched the LEX iOS app from 0-to-1, serving as the sole engineer responsible for the entire mobile lifecycle, from system design to App Store deployment. • Reduced application memory footprint by 90% by engineering a custom internal Design System and optimizing reusable UI components, significantly preventing memory leaks and UI stutter. • Delivered real-time financial data visualization by integrating Socket.io, enabling sub-second updates for live stock charts and improving investor engagement. • Built critical Fintech infrastructure, implementing secure ACH financial transactions, Biometric Authentication (FaceID/TouchID), and regulatory compliance features. • Established QA and CI/CD protocols from the ground up, implementing Root Cause Analysis (CAPA) workflows that stabilized the app and minimized production crashes. Tech Stack: Swift, UIKit, Socket.io, Core Animation, Biometrics (LocalAuthentication), XCTest, Instruments (Memory Graph Debugger)

• Mentored a cohort of 28 university students through a rigorous, industry-standard iOS curriculum (Swift, UIKit, Networking), resulting in a 94% course completion rate. • Directed the technical delivery of student capstone projects, guiding teams from ideation to App Store submission by providing architectural feedback and conducting weekly code reviews. • Served as Technical Program Manager, coordinating cross-functional logistics and streamlining communication between students, university stakeholders, and industry mentors to ensure program success. • Accelerated student learning by debugging complex technical roadblocks during office hours, effectively translating advanced engineering concepts (e.g., Auto Layout, API integration) for junior developers.

Selected as a Tech Fellow to support and mentor students across CodePath’s iOS engineering programs. • Provided 1:1 and group mentorship on iOS development, code structure, and debugging, helping students complete real-world projects. • Reviewed and improved student apps with feedback on architecture, UI/UX, networking, and performance. • Delivered technical workshops on Swift, MVC/MVVM, APIs, and local persistence. • Identified early blockers and guided teams through technical challenges to keep projects on track. • Fostered a strong learning culture through collaborative sessions, guidance, and encouragement.

Operated as a full-cycle iOS consultant, helping startups and businesses transform raw ideas into published App Store products. I managed the end-to-end engineering process—from wireframing and architecture design to final submission. Focused on delivering robust, crash-free applications using Swift and Objective-C, while effectively managing scope and client expectations to ensure timely delivery.

• Contributed to the development of the ERA mobile app across iOS, Android, and Windows platforms, focusing on UI implementation and ensuring interface consistency. • Implemented automated bot detection solutions by researching and integrating open-source projects to mitigate spider traffic and spam on customer websites. • Developed responsive HTML/CSS frontend templates for various startup portfolio companies, ensuring alignment with brand identity guidelines.