Senior Software Engineer at Backbase, the AI-Native Banking OS — focused on production reliability, observability (Datadog & Grafana), and incident response, and integrating AI tooling (Copilot, Gemini) to accelerate SQL work, RCAs, and technical docs.

20+ years across cloud-native platform engineering, backend systems, and distributed architecture. Previously at Microsoft (Defender for Threat Intelligence) and Cox Automotive.

Former Atlanta Java User Group board member and DevNexus Chair — the largest Java conference in the US — for 12 years.

The day job is at Backbase. On my own time, I ship products through Xaymaca LLC — a way to stay current, keep my hands on the whole stack, and grow as an engineer by getting real things in front of real users. Native mobile, web, GIS, open source, and the API behind it.

A relationship-tickling app shipped on the App Store and Google Play. Native iOS (SwiftUI) and Android (Jetpack Compose), localized into 21 languages including RTL (Arabic, Hebrew) and non-Latin scripts (Hindi, Japanese, Korean, Chinese). On-device only — no analytics, no account, no server. Recently shipped the "warm redesign" v2: a full cross-platform UI overhaul with the design system pushed to a shared submodule both apps consume.

ticklr.org · App Store · Google Play

The platform brand for turning public parcel and assessment data into a map-first product for a real-estate corridor. Architected so additional corridors stand up on the same stack and the data backend can be swapped at deploy time.

The first corridor built on Proxiva — a 3D map with property popups for valuation, owner-occupancy, exemption status, structure details, and sales history. Live waitlist behind Google OAuth, mobile-performance-budgeted from day one. Built on Next.js, Mapbox GL JS, Supabase, and Vercel.

Try the demo

A standalone B2B property-data API, multi-tenant from day one. Migrated production traffic off a commercial third-party provider to my own API behind a 7-day parallel-run safety net, with providers swappable at deploy time. Ingested Fulton County 2025 assessment data via a sequenced 11-step plan. TypeScript · PostGIS · REST · ETL.

github.com/Xaymaca-IO

An open-source iOS app that bridges FreeStyle Libre 3 Plus CGM readings into Apple Health — pulling from the LibreLinkUp cloud API and writing into HealthKit. Swift 6 and SwiftUI, with background refresh (BGAppRefreshTask), Keychain-stored credentials, and structured os_log logging. Built in public to scratch a real diabetes-management itch. Unofficial, not affiliated with Abbott, not a medical device.

I'd wanted my CGM data in Apple Health for years, but the activation energy was too high to ever finish — AI-augmented development lowered the friction enough to actually ship it on nights and weekends. More on the why in Necessity, Observability, and Why I Built GlucoBridge.

GitHub

• I ship. Not demos — things in production, on a real store, in front of real users.
• AI-native, calibrated. Claude, tests, and decision docs are in my workflow every day. The art is knowing which step is malpractice to skip.
• The operational layer is engineering. Linear is where I decompose problems and document decisions before I write the code, not after I forget them.

My workflow: use Claude to think and design → Claude Code to build → Cursor to refine.

Languages: Java · Kotlin · Swift · TypeScript · Python · C#
Mobile: SwiftUI · SwiftData · Jetpack Compose · Room
Web & Maps: Next.js · Mapbox GL JS · PostGIS · Supabase
Cloud: Azure · GCP · Kubernetes · Terraform · Vercel
AI: Claude · Claude Code · Cursor · Copilot · Codex · Gemini

📍 Atlanta, GA
🌴 xaymaca.com — engineering leader who still ships
✍️ vincentstoessel.substack.com
🔗 linkedin.com/in/vincentstoessel
☕ Former Atlanta Java User Group board member, DevNexus Chair