Understand first, then build

Before writing any code we align on what problem we are solving and for whom. We translate your ideas into a shared language — personas, user stories and acceptance criteria — so you know exactly what you will get and how we communicate progress at every step.

How we communicate during the process

A simple, transparent flow from idea to something working, with clear review points with you.

At each stage we share concrete deliverables and review them with you — no surprises at the end.

Personas

A persona is a representative user with a name, goals and frustrations. It keeps us focused on real people, not an abstract “the user”.

Valentina Operations manager

Wantsto see key metrics at a glance and decide fast.

Frustrated byexporting spreadsheets and building reports by hand every week.

Matías Analyst

Wantsto filter and cross-reference data without depending on IT.

Frustrated bywaiting days for a report that keeps changing.

User stories

Each need is written as a short story, in the user’s language rather than technical jargon. The format keeps the focus on value:

Format
  • As a persona
  • I want an action
  • so that a benefit
Example
  • As an operations manager,
  • I want to filter sales by region and period,
  • so that I can spot drops in time and react.

Acceptance criteria

They define when a story is “done”, without ambiguity. We use the Given / When / Then format to describe the expected behavior:

Example
  • Given I have sales from several regions,
  • When I filter by a region and a period,
  • Then the table and charts show only that data and the total recalculates.
Definition of “done”
  • Meets all acceptance criteria
  • Works on mobile and desktop
  • Tested and reviewed with you
  • Accessible and performant
Recommended reading User story & acceptance criteria

The spec as the source of truth

Instead of coding “by feel” and hoping for the best, we first write a precise specification of what the system must do. That spec is the source of truth; the code is an artifact that realizes it and is verified against it. It connects directly to the stories and acceptance criteria from the previous stage.

“The spec declares intent; the code realizes it.”

The flow, step by step

A clear pipeline that goes from intent to verified code — and every stage leaves a reviewable artifact.

  1. 01 Constitution The project-wide rules everyone — people and agents — obeys.
  2. 02 Specify The intent and acceptance criteria, with no tech choices yet.
  3. 03 Clarify Surface ambiguities before planning.
  4. 04 Plan The architecture and technical decisions.
  5. 05 Tasks Break it into small, shippable items.
  6. 06 Implement Build with verification at every step.
  7. 07 Analyze Cross-check spec ↔ plan ↔ tasks so everything stays aligned.

Why it works for you

  • Effort goes into defining intent well, not typing blindly.
  • Living documentation: traceability between what was asked and what was built.
  • With clear requirements, AI assistants get it right more often on the first try.
  • The spec outlives the generated code and explains the why.

In practice

The middle ground teams adopt is “spec-anchored”: the spec and the code evolve together, with automated tests enforcing that they stay aligned. Criteria are written unambiguously and every change cites its spec — traceability end to end.

Spec as source of truthUnambiguous criteriaAlignment testsTraceability in commitsGuided AI assistants

And an honest note: tooling enforces discipline but does not replace judgment — the spec is exactly where the thinking now happens.

Recommended reading Spec-Driven Development in 2026

Systems, not screens

None of the panels above is a loose mockup: each one is composed with Atomic Design and a micro-frontend architecture. It is the same approach we apply to your product so it can grow without becoming unmanageable — and we think understanding it helps you make better decisions.

Atomic Design

Brad Frost's methodology: the interface is built from minimal, reusable pieces that combine into increasingly complex components. The result is consistency by design, not by discipline — and a system that documents and scales itself.

  1. 01 Atoms

    The indivisible building blocks of the interface.

    In these panels: Badges, buttons, filter chips, inputs, tags.

  2. 02 Molecules

    Small groups of atoms that work as one unit.

    In these panels: The KPI tile (label + value + delta) or the search bar.

  3. 03 Organisms

    Complete, self-contained sections of the interface.

    In these panels: The customers table with filters and pagination, or a chart card.

  4. 04 Templates

    The structure and layout, still without real data.

    In these panels: The dashboard grid: where the KPIs, charts and table live.

  5. 05 Pages

    The template with real content — what your user finally sees.

    In these panels: The panels above, now with metrics, statuses and data.

Methodology by Brad Frost atomicdesign.bradfrost.com

Micro Frontends

Each panel can be an independent application — with its own team, deploy cycle and even its own technology — composed inside a single shell. You scale piece by piece, without rewriting everything at once.

  • Independent deploys Each team ships its panel without blocking the others.
  • Domain ownership One team owns its vertical end to end.
  • Incremental adoption Add or migrate modules without rewriting the app.
  • Fault isolation If one panel fails, the rest keeps working.

Design Tokens

The single source of truth for the visual language: color, typography and borders live as variables, not scattered values. They are defined once and propagate everywhere — which is why the same system supports light and dark mode without duplicating design.

Color
Accent --color-accent
Text --color-heading
Surface --color-surface
Success --good
Warning --warn
Error --bad
Typography
IBM Plex Sans Display · Text
IBM Plex Mono Data · Code
Borders & radii

Try the theme switch above and watch these tokens change live.

The engineering you don’t see

A beautiful dashboard is the tip of the iceberg. Underneath sit services that process data, scale on demand and protect your information. This is how we think about that part — the one almost nobody sees, but that decides whether your product holds up when it really matters.

Data processing at scale

Data comes in, gets transformed and is served through a chain of stateless services. Because no step holds information on its own, we can multiply whichever ones are saturated without anything breaking.

Stateless = any copy can serve any request. That is the foundation for scaling horizontally.

Scaling right: vertical vs. horizontal

There are two ways to handle more load. Choosing the right one — or combining them — saves money and prevents outages.

Vertical A more powerful machine

More CPU and memory on the same server. Simple, but it has a ceiling and a single point of failure.

Horizontal More identical machines

Several instances behind a load balancer. Scales almost without limit and tolerates failures — requires stateless services.

Recommended reading Vertical vs. horizontal scaling

Quality attributes we care about

These "non-functional requirements" never show up in a demo, but they are what make a system reliable in production. These are the ones we watch most:

Scalability Grows with demand without a full redesign.
Performance Fast responses, even under heavy load.
Availability Stays up even when a piece fails.
Security Protected data and controlled access.
Maintainability Easy to understand, change and test.
Observability Metrics and logs to see what happens.

Choosing the right technology for the problem

There is no single tool that fits everything. We match each problem to the right category of technology — and within it we pick the best option for your case, without tying ourselves to a brand:

  • Relational data and transactions Relational database
  • Cache and low latency In-memory cache
  • Text search Search engine
  • Events and streaming Message queue / streaming
  • Files and objects Object storage
Recommended reading Quality attributes (non-functional requirements)

A cloud, vendor-agnostic stack

This is what a typical architecture we operate looks like: stateless containers that scale themselves in the cloud, with a managed database and cache. It is vendor-agnostic — the same architecture runs on any cloud, with no lock-in.

ContainersOrchestrationAutoscalingManaged databaseIn-memory cacheMulti-cloud

Replicas scale up and down on their own with traffic (horizontal autoscaling). You pay for what you use and absorb spikes with no manual work, on whichever cloud you prefer.

Token-based security

Modern authentication avoids storing sessions on the server: the user identifies once and receives a signed token that travels with every request. It fits stateless services perfectly.

  • JWT A signed token that proves who you are without looking up a session.
  • OpenID Connect / OAuth2 Delegated identity and SSO: sign in with a trusted provider.
  • Short-lived tokens + refresh Renewed often; if leaked, they expire fast.
  • TLS and least privilege Everything encrypted in transit, each service with minimal access.