14 years shipping mobile at scale with Yahoo!, Target, Kohl’s and Vacasa. Now leveraging the power
and speed of agentic development to continue bringing the best experience for users.
↓
QA CARTOGRAPHER
AI only where judgment is needed.
One recorded app flow covers the whole surface, and replays for free.
Any PlatformAny AppAny LLM
Explore, guide, and replay test cases. AI will automatically create and repair tests as the app evolves.
Most RPN calculators on the store replicate the HP 15c exactly, from the functions down to the look of
the buttons. This one takes full advantage of the touch screen and the hardware to better optimize the
user experience for modern devices.
ThenA 1982 fossil that survived with one display row and no modern comforts
NowA supercomputer in your pocket that uses everything today's tech offers
Pick one and it proves itself before it says who paid for it. The dates and the employers are all
still here. They are just no longer the first thing you have to read.
500+
Tests generated, executed and self-healed from natural language, at a 95%+ pass rate in CI/CD.
Built at
Yahoo!
Agentic Engineer
App-, platform- and LLM-agnostic: one test case runs unchanged on iOS, Android and
Web. Saves executives, project managers, QA and developers across every app team hundreds of hours weekly.
A multi-agent QA platform and dashboard. It turns a description of a test into a running end-to-end test, updating itself as the app changes.
Created an agentic team to help with building and iterating on the QAAI engine and dashboard. Then distributed the team as a plugin for others to use in their work internally.
500+ tests generated with 8 bugs caught before a release
100s of hours saved for each team from QA, devs, PMs and executives
1 test for Android, iOS, and Web
Cost savings with swappable or even local LLMs
Every run with recorded video and logs for review and LLM training
Features built to EAA compliance, and the QA pain points taken out behind them.
Built at
Yahoo!
Agentic Engineer
Developed and maintained features on Yahoo! Mail alongside the agentic plugin work,
with a focus on accessibility.
Developed an agentic workflow for exploring and fixing issues within the Yahoo! Mail app. Turned the workflow into a Claude Code plugin for internal distribution at Yahoo! Focusing on reproducible issues and fixes that the agentic team could produce before and after evidence for review to ensure proper fixes.
Increased EAA compliance to 100% throughout the whole app
Maintained features by fixing bugs and removing legacy code
Streamlined CI/CD testing with nightly QAAI test runs
Generative AI answering store team members straight out of Target’s own documentation.
Built at
Target
Lead Android Developer
Created the chat experience for free-form questions: viewing responses, giving
feedback on the AI’s answers, and scanning barcodes to enquire about items or guest orders.
A place to consolidate Target’s documentation and give store team members somewhere to get answers quickly. Generative AI answers free-form questions straight out of tens of thousands of Target documents.
Accurate answers in seconds quickly enabling team members
Created and rolled out to 100% of stores in 3 months
Self improving LLM through in app team member feedback
Barcode scanning enabled AI assisted order and item look up for faster guest assistance
ToolsAndroid Studio, Kotlin, Compose, MVI, Dagger, Hilt, Firebase, Git, Jetpack, Unit Testing, Espresso, Robolectric, Generative AI
100,000+
Daily active team members, completing in-store tasks, generating billions of calls a day.
Built at
Target
Lead Android Developer
Led the myDay team through updating and maintaining a multi-module monolith,
mentoring on Compose and Kotlin and working with other teams on shared components and the backing APIs.
Led the myDay app team, through the ambiguity of a legacy code base and modernizing the architecture. Worked with library, UI/UX, and backend teams to create efficient and modern workflow that even new team members could quickly pick up and immediately be effective at work.
100,000+ daily active team members completing in-store tasks, generating billions of calls worth of traffic each day
Improved workflows to remove tech debt and reduced screens by 1–3 per flow
Upgraded Gradle to Kotlin and reduced initial build time by 15 min
Mentored 10 engineers on the team to utilize Compose and MVI/MVVM architecture
Shared Compose components used across all of Target’s internal apps
The library every app depends on
Inventory, stock and unload, plus the core library sitting under every associate app Kohl’s ships.
Built at
Kohl’s
Senior Android Developer
Focused on reducing tech debt and bringing the core library up to current practice,
with automated testing added to the apps and their build pipeline.
Worked with balanced teams on a variety of associate and customer-facing applications. Led the implementation of best practices to improve an aging code base, providing training and mentorship to junior engineers
Inventory, Stock and Unload is the core library supporting all of Kohl’s internal applications.
All store apps needed the inventory and item location data
Automated testing improved build quality by catching issues sooner
Modernized the architecture to use Kotlin and Compose
ToolsAndroid Studio, Kotlin, Java, Next.js, Compose, MVVM, Firebase, Git, Jetpack, Unit Testing, Espresso, Cucumber, GitLab, Balanced Teams
Zero associates
Walk into the store, enter a code, collect the order, walk out.
Built at
Kohl’s
Senior Android Developer
Designed and developed a web app letting customers collect online orders with no
staff involved. The customer gets an email when the order is ready.
Designed and developed a web app letting customers walk into a store and collect online orders without an associate. Customers receive an email when the order is ready, go to the store, enter a code, pick up and walk out
Minutes of waiting removed, where an associate had to fetch the order from the back room
Labor cost reduced, with associates staying on higher-value tasks
ToolsAndroid Studio, Kotlin, Java, Next.js, Compose, MVVM, Firebase, Git, Jetpack, Unit Testing, Espresso, Cucumber, GitLab, Balanced Teams
Works with the signal down
In-store, drive-up and self-pickup orders, found by scan or by customer details, online or off.
Built at
Kohl’s
Senior Android Developer
A redesign of the associate-facing app to simplify adoption, increase productivity
and add offline capability.
Redesigned the associate-facing app to simplify adoption, increase productivity and add offline capability. Scanning an order number or entering customer details helps associates find and deliver in-store, drive-up and self-pickup orders, handed over with a simple, easy to follow code trade that leaves customers happy with the convenience.
Offline first development, because there is no wifi in the parking lot
Simplified adoption for associates picking the app up
1 minute per order saved finding and delivering orders
ToolsAndroid Studio, Kotlin, Java, Next.js, Compose, MVVM, Firebase, Git, Jetpack, Unit Testing, Espresso, Cucumber, GitLab, Balanced Teams
Banking without a bank
Card accounts for the underbanked in Brazil. Store money, send it and spend it with no bank account and no credit card.
Built at
i2020 Fintech
Senior Android Developer
An ORO Store for digital goods, Lotérica and ATM transfers, and in-app phone
top-ups, then a greenfield Kotlin rewrite with Cognito login and a new card carousel.
An app for the underbanked in Brazil. ORO Pay provides cards with account balances so users can store and transfer money safely without a bank account or credit card.
ORO Store for buying digital items and codes for Spotify, Uber and others
Account transfers through Lotérica and ATM withdrawals, plus phone top-ups in-app
Greenfield rewrite in Kotlin, replacing the original Java and its out-of-date design patterns
Streamlined login with Amazon Cognito, a new card carousel, and peer-to-peer and card-to-card transfers
Built with backend teams in both the US and Brazil
ToolsAndroid Studio, Kotlin, Java, MVVM, Amazon Amplify with Cognito, Firebase, Git, Google ML Kit
10,000+
Active devices globally, on sites, in an app dating back to the Pocket PC days.
Built at
Viewpoint
Mobile Developer
Construction personnel navigate a site in real time, file forms, complete task lists
and track progress, so companies can record who completed what and compile a digital record of
all activity.
The largest and oldest app at Viewpoint. Construction personnel navigate a site in real time, file forms, complete task lists and track progress of work. Used on large construction projects, from skyscrapers to schools and even nuclear power plants.
10,000+ active devices globally
Dates back to the Pocket PC days
Companies record who completed what, and compile a digital record of all activity
A tablet in the gallery, letting visitors open up the work in front of them.
Built at
Itsy Bitsy Stories
Mobile / Web Developer
Ran on an Android tablet placed beside a piece at the San Francisco Asian Art Museum,
letting visitors select and learn more about aspects of the work and zoom in on close-up detail.
An Android kiosk app for the San Francisco Asian Art Museum, running on a tablet placed beside a piece of art.
Visitors select and learn more about aspects of the work
Where the technique gets proven before it reaches anything that ships. Each one is an instrument,
hand-authored with no framework and no build step, built to make something physical measurable
rather than merely to look like it.
