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Mobile apps, web platforms, and the systems behind them — from first idea to production. This is a running log of what I’ve built.
A bit about how I work.
I work across the stack — product, frontend, backend, and the infrastructure that keeps it running. I care more about shipping something real than polishing something theoretical.
Outside of client and product work, I build my own tools and platforms end to end, including the JuanLobby line of products.

What I Work With
What I've Built
JuanLobby
We design, build, and publish our own software — mobile apps, enterprise platforms, and internal tools — fully owned and operated end to end. Every product is built slowly, with intention, and maintained long after launch.
Learn moreArguox Capture
A field-documentation camera that burns verifiable metadata — GPS address, timestamp, device info, and custom labels — onto every photo at capture. Built for attendance, deliveries, and inspections, fully on-device with no account or cloud.
Learn moreMercavo POS
A fast, no-frills point-of-sale for small businesses — products and services in one catalog with tap-or-scan checkout, downloadable order bills, and simple reports. No account, no subscription; all data stays on-device.
Learn moreViaxen Log
A private, on-device logbook for any vehicle — fuel, service, repairs, expenses, and reminders across twelve log types. Auto-calculates fuel efficiency and cost-per-km, with no account and no cloud.
Learn moreExigu Exam
Turns your phone into an optical-mark exam scanner — build exams, print QR-coded answer sheets, then scan for instant auto-graded results. Made for teachers and assessors, with reusable exam banks, all on-device.
Learn moreCliora CX
A private, on-device sales notebook for field agents — log calls and visits in seconds, track contacts across six statuses, and never miss a follow-up. A lightweight alternative to a heavy CRM, with no account or cloud.
Learn moreDomus Keep
A private, on-device home tracker — log appliances by room, keep maintenance and warranty history, track recurring bills, and get alerts before a warranty lapses or a bill comes due. No account, no cloud.
Learn more