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Custom software,
engineered to spec.

We design and build production systems your team owns, across web, mobile, desktop, and AI. Every engagement is scoped against a written plan, built to the same security first engineering standard, and handed over documented, so nothing depends on us being in the room.

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OUR APPROACH

Software you own, not software you rent.

Most custom software arrives as a black box: it works, but the moment the agency walks away, you can't change it, can't host it elsewhere, and can't see how it was built. We work the opposite way. From the first commit, the codebase, infrastructure, and accounts are structured to be handed to you.

That changes how we engineer. We don't ship throwaway prototypes dressed up as products. We build typed, tested systems with the documentation and tooling a team needs to take over, whether that team is yours today or a hire you make next year.

This is for teams replacing fragile spreadsheets, launching a product, modernizing an internal workflow, or connecting systems that should already talk to each other.

We measure a project by what you can run without us.Tomita engineering principle
SYSTEM · FULL STACK

We build and hand over every layer, from the interfaces your users touch down to the infrastructure it runs on. You own the whole stack, not a slice of it.

Built with
  • TypeScript
  • JavaScript
  • React
  • Next.js
  • Vue
  • Svelte
  • Angular
  • Tailwind CSS
  • Node.js
  • PostgreSQL
  • GraphQL
  • Swift
  • Kotlin
  • Flutter
  • Expo
  • Electron
  • .NET
  • Python
  • Go
  • Rust
  • C
  • C++
  • Ruby
  • PHP
  • Vite
  • Astro
  • Hugging Face
  • Anthropic
WEB APPLICATIONS

The web is where the business actually runs.

For most companies the web app is the product, or the place the whole team spends its day. We build the operational core: the dashboards staff live in, the portals your customers serve themselves through, and the platforms that tie them together.

The hard part is rarely the screen. It's the data model and the API beneath it that have to stay correct as features pile on and traffic grows. We design that layer first, then build the interface around the way the business actually works.

  • Customer portalsAreas where customers manage their own data, billing, and activity themselves.
  • Operational dashboardsLive views of the numbers you run on, with the controls to act on them.
  • Marketplaces & platformsProducts that connect buyers, sellers, and the workflows between them.
  • Line of business toolsThe bespoke software that replaces the spreadsheet everyone's afraid to touch.
app.client.co · operations

An operations dashboard on a shared API core. The same data powers the web app, a mobile client, and partner integrations without a rebuild.

MOBILE APPLICATIONS

Judged in ten seconds, used in the worst conditions.

A phone app has to earn its place on a home screen and then survive real life: one hand, bad signal, a battery at 4%. We build native and cross platform apps that respect that: fast to open, reliable where signal is weak, and faithful to the platform conventions users already know.

We also own the parts teams routinely underestimate: push notifications, deep links, background sync, and the App Store and Play Store review gauntlet. We ship through to a published listing with a staged rollout, not a handoff at "it builds on my machine."

  • Consumer appsPolished, fast apps built to clear store review and win a skeptical first time user.
  • Field & operations appsTools for staff away from a desk, built offline first for unreliable signal.
  • Companion appsMobile interfaces to an existing web product, sharing one API and source of truth.
  • Offline data captureBarcode, photo, location, and forms that sync the moment a connection returns.
9:415G ▮▮▮
Today's routeFIELD OPS · LIVE

A field operations app built offline first: work continues with no signal and syncs the moment a connection returns.

DESKTOP APPLICATIONS

For the work that doesn't belong in a browser tab.

Some software has to keep running when the internet doesn't: a till in mid sale, a kiosk in a lobby, an instrument on a bench. We build signed, automatically updating desktop applications for Windows and macOS, packaged for managed deployment across a fleet.

We reach for a shared web and desktop codebase when it speeds you up, and use native APIs when the work needs deep OS integration, hardware access, or raw local performance. Either way it installs cleanly, updates itself, and keeps working when it goes offline.

  • Point of sale & retailTills and back office tools that keep selling when the connection drops.
  • Kiosk & exhibit softwareLocked down, always on interfaces for public and unattended use.
  • Instrument & hardware controlSoftware that talks to physical devices over USB, serial, or local network.
  • Local processing toolsApps that crunch large files on the machine instead of shipping them to a server.
TomitaPOS · register 01
Local first · syncing when online

A point of sale client that keeps selling offline and reconciles automatically once it's back online.

AI & INTELLIGENT AUTOMATION

Useful only when it's wired into real work.

AI earns its place when it's attached to a task with a measurable payoff and a graceful fallback, not bolted on for a demo. We build features grounded in your own data through retrieval, assistants that can take real actions under guardrails, and automation that removes the repetitive work nobody should be doing by hand.

We start from the job to be done, ground the model in your documents and records, and put evaluation and a human in the loop wherever the stakes warrant it. If a simpler set of rules is the better answer, we will say so.

  • Retrieval over your dataAnswers grounded in your own documents and records, with citations, not guesses.
  • Assistants & copilotsHelpers inside your product that take real actions, with guardrails and a human in the loop.
  • Document understandingPulling structure out of invoices, contracts, and forms so people stop rekeying them.
  • Process automationRemoving the rules based busywork that quietly eats a team's week.
RETRIEVAL · GROUNDED ANSWERS

Retrieval in action: a query surfaces the few relevant records and grounds the answer in them, with citations, not guesses.

HOW AN ENGAGEMENT RUNS

Six stages. A deliverable at each one.

There's no mystery phase where work disappears and an invoice appears. Every stage ends with something concrete in your hands, so you can judge progress on artifacts rather than status updates.

01

Discovery

We learn the goal, the constraints, and the environment it has to live in. We map requirements and the edge cases that usually surface during the build, and turn them into a written plan with a realistic estimate, before a line of code commits you to anything.

Deliverable Build plan & estimate
02

Design & architecture

Data models, system boundaries, and interface design get decided and reviewed up front. Agreeing the architecture early is what keeps the build cheap to change later, and gives you a document that explains how the system thinks, not just how it looks.

Deliverable Architecture & interface spec
03

Build

We engineer in short, reviewable increments. Every change is tested, reviewed, and run through continuous integration before it merges. You see working software at a regular cadence and can redirect priorities while it is still easy to change direction.

Deliverable Working software, every iteration
04

Test & hardening

Beyond the tests written during the build, we run a dedicated pass: real world data, performance under load, and a security review aligned to the same baseline our Auditing division applies. Findings are fixed and documented, not quietly shipped.

Deliverable Test suite & QA report
05

Deploy & transfer

We release to production and then transfer ownership: source, repositories, infrastructure, and third party accounts move into your name, with a documented handover and a walkthrough. The point of the project is that you leave it able to run the thing.

Deliverable Live system & handover docs
06

Support

Software is never finished. Ongoing support and maintenance are available after launch, and if you would rather we run the whole environment, that hands cleanly to our Consulting division.

Deliverable Support agreement & named contact
THE ENGINEERING STANDARD

Why the handover actually works.

The difference between software you own and software you're stuck with is almost never the feature list. It's whether the next engineer can understand it, so our standard is built around that moment.

Code is typed and tested, with a suite that documents intended behavior and catches regressions. Every change is reviewed by a second engineer and run through continuous integration, so what reaches production has already cleared the same gate twice. And the system is documented as it's built, not reconstructed from memory at the end.

CI · main
eslint & format0.4s
type check · tsc1.2s
unit tests · 214 passed3.0s
integration tests6.1s
build & bundle8.4s
code review · approved✓
All checks green. Merged to main, released to production

Every change runs the same checks before it can merge. Nothing reaches production until the pipeline is green, and that pipeline ships with the project.

01 · TYPED & TESTED

Verifiable by design

Static types and an automated test suite turn "it seems to work" into something a machine checks on every change, and turn the codebase into a spec the next developer can trust.

02 · REVIEWED & INTEGRATED

Two sets of eyes, always

Nothing merges without code review and a green pipeline. Continuous integration means the build is always in a releasable state, not assembled in a panic before a deadline.

03 · DOCUMENTED & TRANSFERRED

Nothing locked in

Architecture notes, runbooks, and account ownership are part of the deliverable. You can take the system to another team, or bring it in house, without starting from a blank page.

START HERE

Bring us the system you need built.

Tell us about the workflow, product, or internal tool you need. We will help shape it, scope it, and decide whether it should become software.

Request a consultation →