Eleven stacks, one senior team.
If you searched for a stack and landed on a page about engagements, this is the page you wanted. If you are working out whether one team can plausibly cover your whole product surface, the groupings below are the answer rather than the individual names. And if you have a corner requirement most agencies quietly do not do — a sensor, a headset, a firmware target, a voice channel — you can find out here in about fifteen seconds.
Each page goes one level deeper than a service page does, carries its own evidence, and says where that evidence is thin as well as where it is strong.
Seeing and understanding
Turning a camera frame, a sensor stream or a table of records into something a system can act on — and being honest about what it does when the answer is wrong.
VERIFIED — multi-sensor fusion delivering detection to handoff in four seconds; real-time face and head tracking benchmarked to the fastest pipeline available.
Building the product
The service, the screens and the app. Four pages because the trade-offs genuinely differ — and two of them exist mostly to tell you when you do not need the other two.
VERIFIED — a compliance-grade onboarding flow built on-site inside a UAE retail bank; a foreign ministry’s Flutter app live in both public stores.
Running it
The part that decides what the second year costs: the deploy path, the infrastructure in code, and the invoice nobody has read line by line.
VERIFIED — a trading back office serving 8,000+ monthly active users, operated through years of change for a client still with us; many of our clients have stayed 7+ years.
Close to the hardware
Where a mistake ships inside a device that is already in somebody’s hands, and the recovery story has to be designed before the first update goes out.
VERIFIED — control software for tunnel-boring machines modernised while the machines stayed in service: 90% less manual operation, 240% efficiency gain.
Presence and interface
Interfaces that behave like something is there — a face, a space, a voice. All three are judged on timing rather than on fidelity, which is why they sit together.
VERIFIED — an animated 3-D character in Unreal Engine driven live by a language model, with speech in and speech out, running in a browser.
The expensive failures happen between the specialists
The vision team and the mobile team disagree about the frame budget. The data team and the platform team disagree about who deploys the model. The firmware and the interface were built by two companies that have never spoken to each other. None of those is a hard technical problem; all of them are expensive, and all of them happen at a boundary.
That is the argument for one senior team across these eleven — not that anyone is world-beating at all of them, but that the seams between them are somebody’s job. About Fluvius →
If you are unsure which of the eleven applies, describing the problem is faster than choosing a page. Thirty minutes, and you keep the read either way.
This site is organised three ways, and any of them is a reasonable place to start
What you buy: an engagement with a scope, a team and a date. All services →
Who you are: the constraints, vocabulary and proof that apply in your sector. All industries →
This page: what it gets built with, one level deeper than a service page goes.
Most engagements are all three at once — a service, in an industry, on a stack. Whichever you read first, the other two are one click away.
What you are probably thinking
The record behind all eleven
The Upwork and Clutch records are independently verifiable. Fluvius USA Inc · Sacramento, California · led from Ireland, senior team across Europe, EU hours with US-morning overlap.
Buying on behalf of a large organisation? Working with large organisations covers the contracting, security and procurement side in one forwardable page.
Describe the problem and we will point you at the page.
A free 30-minute working session, not a sales call and not a demo. Tell us what the system has to do and where it currently does not, and you leave with a one-page read whether or not anything follows. Nobody follows up more than once.
