Brand, web and social
Websites that explain a business or an event clearly, and communication that reaches its audience.
- Custom websites and Shopify stores
- Social media and live streaming
- Content, graphic design and video
Winter is coming. This winter: at home, learning and shipping more little things
Jaime Gómez CallejasMarketing · MBA · Digital product
I understand the business. I build the tool.
Marketing by training, Executive MBA from San Telmo Business School and over fifteen years in equestrian competition. Today I use AI to build websites and software for real businesses: the website of the Jerez Equestrian Fair, the city's equestrian portal and the software that a shop in Jerez already runs on and invoices with every day, among other projects.
6projects, from a wedding website to a SaaS in production
+400Kviews on social media and websites built in 2026
2011when I started in equestrian competition; today, at ANCCE
MBAExecutive MBA, San Telmo Business School (2025)
Education and experience
01 · Projects
From a wedding invitation to a SaaS
Ordered from simplest to most ambitious, in my humble opinion. Each one with real screenshots, the problem it solved and what I did.
02 · How I can help
Strategy and execution, in one person
I come from business, not engineering: my dream of becoming a software engineer was put on hold. I understand what is needed, I talk to the people who will use it, and I get all the way to a tool that works.
Custom software built with AI
Replacing paper, Excel and WhatsApp with simple tools designed for the people who use them every day.
- Shop management: till, stock, rentals and appointments
- Platforms for events and competitions
- AI-powered automations and reports
Events and competition
Organising national and international competitions, with demanding teams and deadlines.
- Coordinating equestrian shows
- Logistics, entries and results
- Platforms for organising committees
How about we start by getting to know your sector, your problem and what keeps you up at night? I can't promise miracles, but I can promise I'll give it 100%. We can talk money later, once we know what you really need.
Tell me about it03 · Career
A not-so-tidy path
Possibly the only tidy thing you'll find about me.
From Computer Engineering (which I didn't finish) to marketing, then to equestrian communication, until I specialised in national and international competition. An Executive MBA so as not to stand still, and always surrounded by the latest technology, the thing I always wanted to learn.
Experience
- Feb 2021 — today
ANCCE · Competition Department
SevilleOrganising and coordinating national and international Classical Dressage competitions. Projects, teams and decisions in demanding environments.
- 2017 — 2019
WAY Padel Academy
Jerez de la FronteraHead of marketing and digital: social media, content, graphic design and website.
- 2011 — 2019
GC Ecuestre
Jerez de la FronteraOrganising equestrian shows: coordination, logistics, communication and event management.
Education
- 2025
Executive MBA
San Telmo Business School · SevilleCase method: strategy, finance, operations and people.
- 2016 — 2017
BBA International Business Management
INSEEC · Lyon (Erasmus)Management and strategy from an international perspective, in English with a bit of French.
- 2013 — 2019
Degree in Marketing and Market Research
University of CádizUnderstanding markets and brands, and connecting strategy with execution.
04 · About me
As a kid I wanted to study computing. I ended up in marketing, but that itch never went away, and today I try to turn it into real projects.
I'm not an engineer by training. I'm a curious person who taught himself web and graphic design, through tutorials, trial and error and a lot of hours.
Artificial intelligence has changed what one person can build. My goal isn't just for things to work, but to understand why they work. And for the people who use them to notice.
This website is my drawer ("cajón" in Spanish): this is where I keep what I do, what I learn and what's coming next.
Video · 17 sMy story
Yes, that's me in the video. A small dose of nostalgia that reminds me the word "computer" was marking my path from the very beginning.
What I work with
I keep up with everything happening in AI today (in Spanish it rhymes, I promise). I have my own foundation in web development; the rest I build by directing AI agents. I bring the judgement, the design, the testing and the business decisions.
And if something new comes out, I try it: I love discovering and tinkering with software, hardware and technology in general.
My own foundationWeb development (HTML, CSS), interface design, layout
With AI as an agentJavaScript, TypeScript, React, Next.js, Node, Python, Shopify
Data and servers, with AIMySQL, PostgreSQL, Google Sheets, VPS, Docker, Git
AI agents and toolsClaude Code, ChatGPT and custom automations
Design and videoPhotoshop, Illustrator, Affinity, Premiere, DaVinci, After Effects, Canva
OrganisationNotion, Trello, Google Workspace, Excel
05 · Right now
What I'm up to this winter
Three fronts open at once, all moving. Updated October 2026.
Already bringing in revenue with my software
The shop works every day with the SaaS I built and already brings in revenue with it: till, sale and rental stock, appointments, web orders and WhatsApp reminders, all in one system. And I keep extending it every week.
My personal project. I see a market.
One node gives rise to others. For now, Stables and Graphics: Graphics has already been tested on another trial site, and now it's time to launch it with its own website. Equestrian centres and committees still run on paper and Excel; I've lived it from the inside for fifteen years.
Something new I discover and put to work
Small AI products and automations, several already in production: tools that save businesses and events hours of repetitive work.
06 · Contact
Shall we talk?
A project, an offer or an idea you want to bounce off someone. My LinkedIn has what everyone posts; if you really want to get in touch, send me an email.
info@elcajondejaime.com
The most direct way. Tell me what you have in mind and I'll reply within one or two working days. In English or Spanish.
Jaime Gómez Callejas
To connect and see my full career, with every stage in detail.
End of the drawer
If you've made it this far and you're reading this, I owe you a thank you. And if you actually liked it, write to me and say the magic words only those who reach the end know, so I know I owe you one. Bonus points for saying them in Spanish:
«Ábrete, cajón»
(Open up, drawer)
Tell Jaime