Nevada (Al) Kent

Delivered peer-to-peer payment features for tens of millions of users in a multi-module Kotlin/Compose codebase with focus on unidirectional data flow and testability. Scaled strategic features and managed phased rollouts over geographic and targeted audiences. Led as a DRI, developing new products to help people manage finances. Elevated engineering culture through mentorship and code reviews. Accepted challenging tasks and presented demos to stakeholders. Assisted junior engineers with onboarding into complex ecosystem.

Pools - Group Savings

greenfielduianimation

• Served as the Android DRI for a major greenfield feature to create shared savings goals with friends, family, and out-of-network
• Built and maintained all feature surfaces, entry points, and animations
• Managed iterative development schedule and rollout strategy
• Collaborated across design, product, server, and iOS teams to deliver the feature to 100% of users in under 6 months
• Resulted in 2M active customers, $100M GPV, and 3x network density in 2 quarters

cash.app/send/pools

Nearby - Proximity Payments via Bluetooth

pocanimationbluetooth

• Prototyped a proximity payment solution using Bluetooth and Ultra-wideband
• Collaborated with org-wide engineering leads on unified a BLE protocol that could be used for both CashApp and Square terminals
• Vibe-coded particle-effect animations used during discovery and advertisement
• Delivered regular live demos to the larger team, including executives

Arcade Design System

foundationalui

• Co-developed an app-wide design system to supplant a wide-spread fragmented design language
• Created shareable composable UI components to pixel-perfect design specifications
• Led view migrations removing 30k+ lines of legacy code

Paparazzi - Composable Preview Snapshots

toolingdx

• Created @Paparazzi annotation that auto-generates snapshot tests from Compose Preview functions
• Internally developed a KSP plugin to integrate across all view modules with zero boilerplate
• Quickly became the app-wide standard, adopted by all teams
• Currently automating nearly 2k tests across 80 modules
• It has since been upstreamed into the open-source project

github.com/cashapp/paparazzi

Glitter Theme

animationopenglui

• Wrote a script to programmatically generate the OpenGL normals map for the glitter texture
• Created a shareable gyroscope handler to drive scene lighting from device orientation
• Implemented the background and effect as a Composable modifier, making it easily applicable across app surfaces
• Ported the same effect to iOS using SceneKit

Served as development lead with direct reports for mobile solutions in Payment Gateway Services. Collaborated with engineers across US, Ireland, and Australia. Ensured security standards through encryption, PCI compliance, and penetration testing. Practiced SAFe Agile development with code reviews and iterative releases. Managed CI via Jenkins/Travis.

Simplify Commerce

hardwaresdkui

• Released white-labeled Android app to production
• Developed around RxJava and MVP for testability
• Built native SDKs for Miura Bluetooth/IP card readers
• Developed Payshield HSM-interfacing microservices in Groovy/Grails

Mastercard Payment Gateway Android SDK

open-sourcesdk

• Architected Kotlin SDK supporting EMV 3DS and Google Pay, built around coroutines
• Maintained as an open-source project

github.com/Mastercard-Gateway/gateway-android-sdk

911 Call Center Product

full-stack

• Led full-stack (.NET MVC) and mobile development for 911-supplemental product

SATCOM Field Tools

hardware

• Developed Android toolkits for SATCOM field technicians
• Established antenna connections and engineered custom USB OTG cables for military radio-network connections

Ascension Health Web Platform

cmsweb

• Developed public site for Ascension Health using Joomla

TrueColors HR Tool

e-commerceweb

• Built custom PHP CMS for interactive HR personality assessment tool
• Integrated e-commerce platforms (PayPal, Authorize.Net) and social APIs