Senior engineering as a service. An Atlanta-based software practice shipping consumer products and the B2B APIs behind them.
PRACTICE Software engineering
FOUNDED 2025
BASED Atlanta, GA · US
WEBSITE xaymaca.io
STATUS Accepting engagements
POSTURE AI-native, calibrated
Three engagement modes — each pitched as an outcome, not an hour.
- AI-Native Product Development — we design and ship consumer software end-to-end across iOS, Android, web, and the APIs they depend on. Production-grade code: tested, localized, privacy-aware, App Store and Play Store-passable.
- B2B API & Data Platform Build-Outs — self-owned, performance-budgeted REST APIs, multi-tenant from day one, with data providers swappable at deploy time. You own the data layer.
- Fractional Engineering Leadership — for pre-Series A and Series A teams without a senior engineering hire in the building. We bring the operational layer alongside production code shipped.
Public repositories in this organization:
| Repo | What it is | Status |
|---|---|---|
| project-minerva-api | Self-owned property-data REST API for U.S. real estate. PostGIS-backed, multi-tenant, with data providers swappable at deploy time. The data backend behind Beltline Living. | In production |
| xaymaca-llc-site | This practice's marketing site. Next.js 14, Tailwind, Framer Motion. Graphite-and-silver design language. | Live at xaymaca.io |
Two additional shipped products live outside this organization for the moment:
- Ticklr — privacy-first contact app, native iOS + Android, 21 locales including RTL and non-Latin scripts. Shipped on both stores. → github.com/vinny2020/ticklr · ticklr.org
- Beltline Living — the first corridor on Proxiva, our location-based corridor property-intelligence platform: a 3D Atlanta property map (Next.js + Mapbox + Supabase + Stripe), served by Project Minerva. Transitions to Proxiva branding in Q3 2026. → beltline-demo.xaymaca.io
Shipped, not staged. We measure ourselves on what's in production, on a real store, in front of real users. We don't bill for demos. Our public portfolio is the demo.
AI-native, calibrated. Claude is in our workflow every day. So are tests, architectural decision documents, and follow-up issues for the cases where the LLM produced something we'd want a human reviewer on. The difference between "ships fast with AI" and "ships junk with AI" is the calibration. We've built ours.
Two-sided product thinking. Consumer apps and the B2B APIs behind them are designed together, with both economies in mind. Where it makes sense, we build them both.
- Website — xaymaca.io
- Email — xaymaca@gmail.com
- Founder — Vincent Stoessel
© 2026 Xaymaca LLC · Atlanta, GA