Work

The problem

Event photo retouching was coordinated over email and download links: multi-GB files, scattered corrections and manual billing.

What I did

• Role-based dashboard (client, editor, super admin) with mandatory two-factor auth for staff.
• Chunked RAW uploads straight to Dropbox, resumable if the connection drops.
• Sample review with plan-based round limits and client–editor messaging.
• Subscriptions via Mercado Pago and PayPal, plan limits and automatic deletion of expired files.

The problem

Plans, gifts, courses and digital products are sold in two currencies. Activating every purchase by hand after payment didn't scale.

What I did

• Custom peso checkout with Mercado Pago and Wix's native checkout for dollars.
• Idempotent webhook: a payment notified twice is never activated twice.
• Automatic activation of plans, gifts and courses as soon as payment clears.
• Internal alerts with a direct link to each order in the dashboard.

The problem

An IT support company competes with dozens of providers for the same searches. It needed to rank first for its highest-revenue service: structured cabling.

What I did

• Two websites built; the main one is shown here.
• Google Ads for four years, focused on structured cabling.
• AI-generated videos for the campaigns.
• Joint campaigns for MerlinTech's own clients.

The problem

A manufacturer of pipeline pigs and scrapers sells to engineers looking for specifications, not brochures.

What I did

• Multilingual technical site with a product catalogue.
• Google Tag Manager set-up to track every enquiry.
• Google Ads campaigns aimed at B2B buyers.

The problem

The business runs on WhatsApp and phone enquiries. Without knowing which campaign brought which call, budget was being spread blind.

What I did

• A network of six authorised repair sites: three own brands plus one site per appliance brand.
• SEO for each site on local repair searches.
• Google Ads with WhatsApp and phone conversions tracked per site, through Google Tag Manager.
• Offline conversions: n8n stores every lead with its GCLID and Google Ads imports completed jobs.
• WhatsApp campaign through Meta's official API to 2,768 past customers.

The problem

Technicians work on the road, often with no signal. Jobs and payments had to be logged on the spot, not at night.

What I did

• Android app for technicians: create, edit, search and track jobs.
• Works offline: saves on the phone and syncs itself when the connection returns.
• Daily summary: pending, completed and total collected.
• Receipts to the customer by email (via n8n) or as a PDF over WhatsApp.

The problem

Selling aniline dyes online in a category where almost nobody has a proper shop. Customers search on Google and buy wherever stock and prices are clear.

What I did

• Online shop with catalogue, usage instructions and online payment.
• Google Ads for two years, with several campaigns running in parallel.
• Tracking with Google Tag Manager.

The problem

A law firm specialising in insurance and reinsurance for domestic and international insurers. It needed to move its site to new technology and use the move to redesign it.

What I did

• Full redesign and technology migration.
• Content organised by practice area: insurance, reinsurance, mediation, maritime, aviation, transport and litigation.
• Two versions of the homepage: the one the firm asked for and a bolder proposal of my own.

The problem

The brand sells on Mercado Libre through a network of resellers. Checking by hand that nobody listed below the minimum price was impossible.

What I did

• n8n workflow that audits reseller prices on Mercado Libre.
• Detection of below-minimum listings with automatic alerts by email and WhatsApp.
• Dashboard to manage resellers, infringements, bundles and competitors.

The problem

Pharmacies, clinics, labs and cold stores have to log temperatures to stay compliant. They do it by hand, on spreadsheets.

What I did

• Hardware and software: temperature and other sensors installed on each unit.
• Real-time monitoring dashboard with Telegram alerts.
• Automatic compliance reports sent by email.
• Full history to anticipate maintenance and present to inspectors.

The problem

Wholesale prices were sent as spreadsheets over WhatsApp, always out of date.

What I did

• Online price list with per-client access.
• Orders and stock in one place.
• Product catalogue with individual product pages.

The problem

A UK nut wholesaler sells to bakeries, chefs and restaurants. It needed to win those customers online and get dispatch organised.

What I did

• B2B site with a product list: customers build a wishlist and receive trade prices.
• SEO and Google Ads for wholesale searches in the UK.
• Internal management app for labelling and shipping.
• Tracking with Google Tag Manager.

The problem

Nicolás is a designer and edits my videos. His work is visual and the portfolio had to match it.

What I did

• Custom portfolio that puts the audiovisual work front and centre.
• Built with Next.js.

The problem

Martín is a colleague: he now specialises in Salesforce and still freelances as a web designer. He needed a portfolio that stood apart from templates.

What I did

• Portfolio designed and built together with him.
• Built with Next.js.

The problem

Many clients need the same thing: a site, campaigns and automations. Building it from scratch every time doesn't scale.

What I did

• Agency that sells these services as packages.
• In-house CRM and lead generation.
• n8n automations for my businesses and my clients'.