Custom systems · Barcelona, Spain

When the spreadsheetno longer cuts it.

For growing companies still running on spreadsheets and tools that do not talk to each other. We build the system that replaces them and keep it running for a monthly fee. Your numbers are the real ones, and nobody reconciles them by hand. Based in Barcelona, with a deep focus on Spain and clients worldwide.

Built around how you work today·Kept running every month·Barcelona · Spain first, clients worldwide

We write the code we ship.

No subcontracting, no offshoring the build to people you have never met. The senior engineer in the meeting is the one in the pull request.

ii.

We work for handoff, not lock-in.

Documentation, runbooks, and tests are not a finishing touch. They are how we know the work is actually done.

iii.

We ship the smallest thing that solves the problem.

The fewest moving parts, the cheapest infrastructure, the model your team can actually evaluate. Sophistication on demand, not by default.

What we do

Four disciplines. One execution partner.

From early architecture decisions to production-ready platforms. We work in tight loops with your team. No walls, no handoff theatre, no junior engineers learning on your dime.

Data & Intelligence

Pipelines, warehouses, signal systems, and analytics layers that turn raw data into decisions. Production systems built on modern cloud stacks. Observable, tested, easy to hand back.

Warehouses/Pipelines/Modeling/BI/Lineage

AI & Automation

Applied machine learning, LLM integrations, and workflow automation that removes manual work from processes that should not need it. We build things that actually get used, not demos that get shelved.

LLMs/Retrieval/Agents/Forecasting/Evals

Product & Platform

End-to-end development of the internal systems your team uses every day, plus B2B SaaS products and data platforms. We own architecture, backend, and delivery, and ship to your repos, your cloud, your team.

Frontend/Backend/APIs/Database/Infrastructure

Data systems direction (fractional CTO)

The recurring tier that follows a build. Once the system is running, we stay on to direct it for a monthly fee: priorities, vendors, costs, and what to build next, so the numbers stay the real ones as the company grows.

Priorities/Vendors/Costs/What to build next

The path to production

From raw signal to shipped systems.

Every data and AI engagement we run follows the same backbone. The pieces change (your CRM, your warehouse, your model); the shape stays the same.

AXIS / PIPELINEFrom event to decision · live topologyoperating

01Sources

Operational DBsproduction systems

SaaS APIsbilling · crm · commerce

Event streamsanalytics · webhooks

Files & docsobject storage · uploads

PLATFORM02

INGESTbatch & streaming

STOREwarehouse · lakehouse

INFERfeatures · models

OBSERVEtests · alerts · lineage

Outcomes03

Dashboardsexec · ops · self-serve

Predictionschurn · ltv · forecasting

Automationsagents · workflows · ops

AI productscopilots · search · chat

How we work

Two-week phases. Fixed price, in writing.

Each phase lasts about two weeks and has a fixed price. What is included and what is not is written down before we start. Every phase has concrete deliverables you can take home and a clear signal to judge us against. If we are a bad fit, we will know in the first two weeks.

PhaseWhat we doWhat you getHow you judge us

Discovery

A working session and technical audit. We map your stack and surface the highest-leverage moves.

Stack mapRisk registerQuick-win shortlist

Did we name a problem you had not articulated yet?

Architecture

Diagrams, decision records, trade-offs written down. A signed proposal with fixed scope and cost.

Target architectureADRsFixed-price proposal

Could a different team pick this up and finish it without us?

Build

Agile sprints with weekly demos. We ship to your repos, your cloud, your team. Tests, docs, runbooks.

Production codeCI / observabilityInternal handover docs

Is your team confident running this when we leave?

Operate

Handoff with a support window. After that, a monthly fee covers keeping the system running, agreed in writing before we start. Direction of the system (fractional CTO) is the optional recurring tier on top.

Support windowMonthly maintenanceQuarterly review

Are you compounding leverage, or just maintaining?

What a phase is

About two weeks: Each phase lasts about two weeks and has a fixed price.
In writing first: What is included and what is not is written down before we start.
Delivered phase by phase: Every phase has concrete deliverables you can take home and a clear signal to judge us against.
Paid on acceptance: Half when a phase starts, half when it is delivered, the second half only if the acceptance criteria are met.

Work runs in phases of about two weeks, each at a fixed price. The price depends on scope, and scope and exclusions are agreed in writing before starting. Payment is split in two: half when a phase starts, half when it is delivered. The second half is due only if the phase meets the acceptance criteria we wrote down before starting.

What changes

From scattered files to one platform.

Most builds are not a percentage gain. They change how the company works.

Before

No systems, loose spreadsheets or paper.

Information lives in spreadsheets, handwritten records or in people's heads, or there is no system at all.

Spreadsheets
Handwritten records
No system

After

One integrated platform.

Each person logs in, and everything sits in one centralised database.

Each user logs in
One centralised database

A common pattern, not a named client.

Service company with a client portfolio

Situation before

The team tracked its clients' online reputation across several sources (Google reviews, social networks, B2B review sites and app stores) and had to act on negative mentions. The starting tool kept breaking and could not be relied on.

What was built

The tool was stabilised, with automatic daily and weekly runs, a Google reviews connection, and visibility into how the AI scores each mention.

What changed for users

New mentions appear without anyone launching the search by hand, and each one can be reviewed with the reason behind its classification.

Common questions

Everything you'd ask on the first call.

What does Axis Data Labs actually do?

Axis Data Labs SL is a technical company based in Barcelona. We design and build the systems that replace spreadsheets and disconnected tools in growing companies, and we keep them running for a monthly fee, so the numbers are the real ones and nobody reconciles them by hand. We work across Spain and with clients worldwide. Alongside client work, we build and own ventures like Delvion Partners.

Who do you work with?

Mainly service companies of roughly 10 to 100 people in Spain, where the CEO or COO still runs the operation on spreadsheets and tools that do not connect. We also take on teams outside Spain, remotely. If what you have today works and costs you no effort, you probably do not need us.

Do you stay on after the system is built?

Yes. Once a system is running, maintenance is a monthly fee. We can also stay on to direct it as a recurring service (fractional CTO): priorities, vendors, costs, and what to build next. It follows a build, it is not where we start.

How does pricing work?

Each phase lasts about two weeks and has a fixed price that depends on scope. What is included and what is not is written down before we start, with no hourly surprises and no extra scope without a written change. Payment is split in two, half at the start and half at delivery, and the second half is due only if the phase meets the acceptance criteria we agreed in writing. Once a system is running, maintenance is a monthly fee.

Can we start with something small?

Yes. We start with one phase of about two weeks, at a fixed price and with the scope in writing. It tests the relationship and the approach before either side commits to a larger build.

Insights