I design and build digital products.
Online stores, web applications and custom integrations. I'm Diego Martínez, a systems engineer in Medellín: I connect your users' experience with the technology that makes it work.
Available for selected projects
Liminal · Accesorios
Online store · Medellín
Identity
An identity that becomes an experience.
Liminal is a brand of gothic and alternative accessories. I built its online store with an entrance of its own: an animated intro with the brand's portal, key, and crimson-and-violet palette.
Piece
The identity lives in every piece, too.
Past the threshold is the product. On the product page, the photo takes half the view; name, price, description, and buying actions sit beside it without competing with the piece.
Gargantilla red bat · catalog photo Store
From a visual world to a real catalog.
The editorial home page, intro, footer, and styles are Liminal's own. Category browsing, product pages, search, and cart come from Aether Commerce, the platform the store runs on.
Product page · liminalaccesorios.com 
Editorial home page
Astro · Atlas Astral
Atlas
An atlas of the sky to explore.
Atlas Astral is a web app that draws the sky as an instrument: the zodiac wheel, planet positions, and the Moon's phase in a single view.
Relations
Positions become relationships.
The app calculates where each planet is and the angles they form with one another. Transits, ingresses, retrogrades, and lunar phases are organized as events and on a calendar.
Reading
From the whole sky to a personal reading.
A birth date, time, and place build the natal chart. On top of it, personal transits are followed and symbolic interpretations are read, with texts written with AI.
The calculation is astronomical; the interpretation is symbolic, not scientific prediction.
Product
A real app, ready to open.
Sky map, natal chart, calendar, compatibility, and solar return, in a web interface designed for desktop and mobile.
Illustrative geometry, not live positions
Aether / connected commerce
A store that works beyond the interface.
Buying is only one part of the problem.
Aether connects the customer experience with inventory, orders, operations, and intelligent assistance in one product.
An experience designed for buying
Less friction. More clarity.
Customers find what they need without navigating noise, unnecessary menus, or complicated processes.
Products, availability, and purchase belong to the same experience.
The catalogue can talk too
Search stops being a guessing game.
The assistant understands what the customer needs, finds real options in the catalogue, and helps them move towards a purchase.
It does not answer about a store. It is part of it.
On the other side of the purchase
What happens in the store becomes decisions.
Orders, products, inventory, and operational signals appear in one place.
The goal is not to show more information.
It is knowing what needs attention.
Operations can talk too
Ask instead of search.
Which orders are being processed?
Which products are low in stock?
Aether turns dispersed business information into direct, actionable answers.
One experience, two sides of the business
The customer buys. The business responds.
Aether connects both.
It is not only a storefront with an admin panel or a chatbot added on top. It is a product designed so customers, data, and operations work together.
Profile
The experience behind the work.
I design, build and launch each project myself. My experience is in backend, cloud and integrations for banking, payments and digital products.
Diego MartínezSystems engineer · Medellín
- Flexible payments
- Connecting the application with transactional processes and external services.Next.js · Google Cloud · Stripe
- Banking
- Building services and features in a distributed system, as an external contractor.Node.js · AWS Lambda · Angular
- Financial cloud
- Structuring APIs, relational data and reproducible infrastructure on AWS.Amazon RDS · SST
Private cases, described without client data.
I work in reviewable deliveries, from technical definition to deployment.
Contact
Let's talk about your next project.
Tell me what you want to build or improve, and where things stand today.