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Taking new engagements for Q4

Intelligence is not a layer you bolt on.

Brainfullstack builds intelligent systems end to end. We own every layer intelligence depends on — the data that feeds it, the reasoning that runs on it, the product that exposes it, and the automation that acts on it. Then we stay on call for the whole thing.

System statusoperational_
systems in production
32
pipeline success rate
99.98%
incident response
24/7
next availability
Q4 2026

Trusted with systems that cannot go down

NORTHWINDHalcyon BioMERIDIANVantage FreightORBITALKestrel HealthLUMEN RETAILFathom Capital
32

AI systems in production

Shipped and still running, not proofs of concept.

40-60%

Manual work removed

Typical reduction per automated process.

99.98%

Pipeline success rate

Across every system we operate.

11,400

Staff hours returned

To client teams over the last year.

What the name means

The stack intelligence actually needs

Most AI work fails somewhere other than the model. The data arrives late, the interface hides the confidence score, and nothing acts on the answer. Intelligence only survives contact with production when every layer underneath it is built for it.

That is the whole argument, and it is why the name has two halves. Brain is the part everyone wants. Full stack is the part that makes it work. Brainfullstack

Method

Five phases, and the first one can end the project

Roughly one diagnostic in five concludes that the work should not proceed as scoped. We would rather return that finding in week two than invoice for a year of building the wrong thing.

  1. 01

    Diagnose

    1-2 weeks

    We measure the current system before proposing a new one. Interviews, instrumentation and a read of the code produce a written diagnosis, including the parts where our first instinct turned out to be wrong.

    • Process and systems map
    • Measured baseline
    • Prioritised opportunity list
  2. 02

    Architect

    1-2 weeks

    A design document with the decisions made explicit, the alternatives we rejected, and the reason. If the honest answer is that you do not need the project, this is where we say so.

    • Architecture decision record
    • Delivery plan
    • Fixed-scope estimate
  3. 03

    Build

    6-16 weeks

    Two-week increments, each ending in something deployed to a real environment. You see working software every fortnight rather than a status report.

    • Deployed increments
    • Test and eval suites
    • Fortnightly demo
  4. 04

    Harden

    2-4 weeks

    Load, failure and security testing against the system as built. We break it deliberately and fix what breaks, before your users find the same edges accidentally.

    • Load and failure reports
    • Security review
    • Alerting and runbooks
  5. 05

    Operate

    Ongoing or handover

    We either run it or hand it over properly, which means paired work with your team until they have shipped changes themselves. A handover where nobody has touched the deploy path is not a handover.

    • Runbook and on-call
    • Paired handover
    • Quarterly review
What clients say

The quotes we are proudest of are the uncomfortable ones

The evaluation harness was the part we did not know we needed. It turned an argument about whether the model was good enough into a number we check every week.
DWDana WhitfieldVP Claims Operations, Northwind
They talked us out of the redesign we asked for and into the rebuild we needed. The invoice was the same either way, which is how I knew the advice was honest.
MFMarcus FeldChief Digital Officer, Lumen Retail
We spent two years arguing about whose number was right. It took six weeks to discover we were both right and neither of us had written the rule down.
DPDr. Priya RamanHead of Informatics, Halcyon Bio
Two vendors before them told us the audit trail could come later. That answer is why they were previous vendors.
ABAlan BrechtCompliance Director, Kestrel Health
In week one they told us our deadline was not real. Nobody had said that out loud in four months of internal planning, and the project succeeded because someone finally did.
SASofia AlmeidaDirector of Engineering, Vantage Freight
The handover was the most thorough I have seen. My team had shipped three changes on their own before the engagement formally ended.
TLTomas LindqvistCTO, Meridian
Next step

Tell us what you are building.

A system you want built, a model that has to survive real traffic, or a process that should have been automated a year ago. The first conversation costs nothing, and occasionally ends with us telling you not to build it.

Reply within one working day

A person, not an autoresponder.

A 30-minute call, no deck

We ask about constraints, not budget.

A written view within a week

Including the case for not proceeding.