We build platforms for operations that cannot stop, audit the security of systems that already exist with evidence you can check, and work PostgreSQL with the judgement of someone who sends patches to its core.
Operations copilot · ask it about your data
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What we do
This page reads in a minute: we build large platforms, we audit the security of systems that already exist, and we work PostgreSQL from its core. Every line carries what backs it, and every proof can be checked.
Healthcare, public procurement, certification: systems with thousands of documents inside, several clients who must never see each other, and people asking who touched what.
The proof
Five platforms in production under betrivasystems.com and some twenty applications running on AWS.
Code, data, infrastructure and tenant isolation, reviewed with evidence. For systems that sign long contracts, go through tenders or hold third-party data.
The proof
Method applied to a system under a twenty-year operating contract, plus our own security research on PostgreSQL.
Performance, isolation, migrations and extensions, with the judgement of someone who reviews and fixes the core on pgsql-hackers.
The proof
Every commit linked to git.postgresql.org, on the PostgreSQL page.
If what you need is none of the three, we say so in the first email.
After the demo
Every demo works. It is built with thirty records, one user and nobody in a hurry. You only get to know a system in month fourteen: thousands of records inside, two clients who must not see each other, and someone asking what happened in March.
Week 1
You type three letters and the result is there. With forty records, anything is fast.
With eighty thousand documents, that same search scans the whole table and takes eight seconds. People stop using it and go back to asking over WhatsApp.
Indexes and vector search defined in the initial data model. Not a late optimisation: it is how the table was designed on day one.
Month 6
The platform still looks just as good. You add the new organisation and everything keeps working.
One query that forgot the client filter returns the other organisation's data. Nobody notices — until somebody notices.
Isolation enforced by the database rather than by the programmer: if the query forgets the filter, the row still does not show up.
Month 14
That question never comes up in a demo.
The audit, the complaint or the lawsuit arrives, and the answer is "I don't know". There is no record, because it was never written.
An audit log from the very first state transition. It costs little to write at the start and cannot be reconstructed afterwards.
What cannot be done later
Almost everything can be fixed by paying: migrate the database, rewrite the module, buy a bigger machine. History cannot. If the audit log was not written on day one, those years do not exist and no budget will bring them back. The same goes for data stored wrong or never stored at all. That is why these decisions are made at the start: not because they get expensive later, but because some of them can no longer be made at all.
Isolation
Almost all multi-client software separates data in code: a filter on an identifier that someone has to remember to write in every single query. It only takes forgetting once, in one query, on a Tuesday. Here the filter does not live in the code: PostgreSQL enforces it. Switch the session identity and watch the same query.
The query being run — identical in both cases
SELECT id, name, reason
FROM patients
ORDER BY id;3 rows returned
2 rows returned
0 rows
The policy that enforces it
ALTER TABLE patients ENABLE ROW LEVEL SECURITY;
ALTER TABLE patients FORCE ROW LEVEL SECURITY;
CREATE POLICY tenant_isolated ON patients
USING (tenant_id = current_setting('app.tenant_id', true)::uuid);
-- The context is set PER TRANSACTION (third argument: true).
-- When the connection returns to the pool, the tenant goes with it.
SELECT set_config('app.tenant_id', $1, true); 8f2c1a7e-…-norte Sample data; the mechanism is the one running in production. Two details you only notice once someone has been burned: FORCE also applies to the table owner, and a transaction-local context stops a pooled connection from dragging the previous tenant along.
Operations
A system in production is a system with someone behind it: monitoring, incidents with a ticket number, verified deployments and backups that actually restore. This is what it looks like from the inside.
How every delivery is validated
Products
Intelligent scheduling for radiotherapy
Patient scheduling, multichannel notification and end-to-end traceability for a radiotherapy department. Treatment continuity is the rule that wins: the engine proposes the order, the oncologist signs the clinical category.
The receptionist your practice never had
A WhatsApp virtual receptionist, a traceable clinical record and cited medical knowledge. Built for the doctor running their own practice, not for the hospital with an IT department.
Full physiotherapy care, booked online
Website and platform for a real clinic in Coyoacán, Mexico City: guided assessment, online booking and treatment follow-up. The full case of an operation that sees patients every day.
AI-assisted tender analysis
Assisted reading of public tenders: terms, annexes and deadlines turned into a clear bid / no-bid decision, with the source document always in view.
Standards, assessment and certification in one place
A unified platform for standards management, assessment and CONOCER certification: from course to evidence, and from evidence to a verifiable certificate.
Criteria
These are the decisions that get made once and are not reversed afterwards. They work for evaluating us and for evaluating anyone else. Take it to your next meeting: if the vendor answers with a demo instead of a fact, you have already learned something important.
Betriva Systems · free to use · no sign-up, no email
0/7
Why it matters It is the most expensive failure and the quietest one: by the time it is found, it has already happened.
The answer that should worry you
"We filter by client ID on every query."
Ours
Row Level Security in PostgreSQL, with FORCE enabled and a transaction-local context. Demonstrated live, further up this very page.
Why it matters A backup that has never been restored is not a backup: it is a file with good intentions.
The answer that should worry you
"We have automatic daily backups."
Ours
A tested restore, with its date and how long it took. A backup with no restore test does not count as a backup for us.
Why it matters A model will confidently write a deadline that does not exist. And it gets signed anyway.
The answer that should worry you
"It uses state-of-the-art artificial intelligence."
Ours
Every statement linked to the document, the page and the paragraph. If the system cannot show the source, it does not answer.
Why it matters It is what the auditor, the complaint or the lawsuit asks for. And it cannot be reconstructed backwards.
The answer that should worry you
"We store the last modified date."
Ours
A log per state transition: who, when, from where and exactly what changed. Written from day one.
Why it matters It determines whether you can change vendors or whether the vendor owns your operation.
The answer that should worry you
"We take care of all that, don't worry about it."
Ours
All of it in the client's name. We could walk away tomorrow and nothing would fall over — which is exactly the point.
Why it matters An entire operation hanging off a third party's API is a business risk, not a technical one.
The answer that should worry you
"That is very unlikely to happen."
Ours
Critical flows run on local models, on our hardware or the client's. As a bonus, sensitive data never leaves either.
Why it matters Between a reasonable solution and the optimal one there are machine hours and money, every month.
The answer that should worry you
"The algorithm looks for the best available combination."
Ours
CP-SAT and QUBO models returning the optimum along with its gap. When the gap is zero, no better schedule exists and it can be proven.
Contact
Tell us which operation you want to put in order. If we can help, we say so with a plan and a timeline; if it is not our thing, we say that too.
Write to us at contacto@betrivasystems.com · We reply within one business day.