JK LOGICGet in touch

JK Logic — Independent software studio

Software that holds up.

JK Logic is an independent software studio that designs, builds, and operates production-grade software — from first commit to live operations.

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01Selected work

Built, shipped, and running.

01

Check-In & Point-of-Sale Platform

In production

A tablet-first check-in and point-of-sale platform purchased by a multi-location business — live payments, ID scanning, real-time occupancy, and receipt printing, run every night by non-technical staff on iPads.

  • Offline-first customer roster with 30-second delta sync that rides out network drops
  • Idempotent payment writes — retries are safe by construction
  • Hardware in the loop: networked receipt printers and barcode scanners
  • Coverage-gated CI, practiced sub-5-minute rollbacks, isolated per-venue deployments
Next.jsTypeScriptSupabaseSquarePWA
02

Next Up

In development

New work is already underway. Projects land here as they ship — this roster is built to grow, and one of the open slots could be yours.

In the works

02How we build

Quality is the deliverable.

Production-first engineering

Strict TypeScript, tests that gate every merge, and observability wired in from the first commit — not bolted on after launch.

Resilient by design

Offline-first data, idempotent writes, and graceful failure modes. Software that keeps working when the network doesn't.

Full lifecycle ownership

Design, build, deploy, operate. One accountable partner from architecture to on-call — with runbooks, rollbacks, and real uptime.

Security as a habit

Least-privilege access, secrets hygiene, dependency scanning, and input validation at every boundary — before anyone asks for it.

TypeScript strictcoverage-gated CIsub-5-min rollbacksoffline-firstreal payments in production
Now booking new projects

Have a project in mind?

JK Logic, LLC is available for contract and consulting work. Tell us what you're building — we'll tell you how we'd make it hold up.

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