Alexander Cillán

formerly known as Cillysen

Alexander Cillán

formerly known as Cillysen

I design brands, products and websites for startups that look as good as they work.

I’m Alexander, a brand, product and web designer in Palma de Mallorca (Spain), working with startups and tech teams, mostly in the US. I’m also a Product Designer at Anvara, and I run every project on a clear process.With a team of five, I’ve designed for 200+ founders in AI, SaaS, crypto and fintech since 2021. Read the full story on my about page, or contact me to start a project.

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Trusted by founders building what’s next.

“Alexander designed clean, on-brand email templates for us. He worked fast, communicated clearly, and handled feedback effortlessly. Super easy to work with.”

Adrian

CTO at Anvara

“Alexander is the absolute design GOAT. No one better out there. No one higher quality. He actually cares about the design and how it comes out looking. He’s just the best!”

Hayden

Founder at Waveform

“Nothing but great things to say! Alexander has been incredible across multiple projects this month and has quickly become my go-to designer.”

Ian

Co-Founder at Timepiece FNF

“Alexander is insanely fast, detailed, and professional. The final designs went way beyond my expectations, and he truly cares about making your vision real.”

Andrei

Owner at Offensive Pulse

“…nailed our rebrand with consistency across socials and site. Creative, efficient, and a top designer we’ll keep working with for future projects.”

Tom

Co-Founder at Primed Proxies

“The Celestix logo looks premium and modern. Alexander gave us multiple options with unique touches, made the process smooth, and delivered a polished result that really stands out.”

Emil

Founder at Celestix AI

“…detail and communication are spot on. I’ve hired him many times and always been impressed with the results. Highly recommend to anyone.”

Jared

Founder at Falx.co

“Working with Alexander means creativity, clarity, and great taste every single time. He’s reliable, collaborative, and always makes the work better without overcomplicating things.”

Ioannis

Founder at Canary Canary

Trusted by founders building what’s next.

“Alexander designed clean, on-brand email templates for us. He worked fast, communicated clearly, and handled feedback effortlessly. Super easy to work with.”

Adrian

CTO at Anvara

Last updated October 31, 2026

Privacy Policy

Who is responsible for your data

Owner: Alexander Cillán Madsen
Tax ID (NIF): 43188009N
EU VAT ID: ES43188009N
Address: Carrer de Jacint Verdaguer 35, 5A, 07004 Palma de Mallorca, Illes Balears, Spain
Email: hello@alexandercillan.com
Website: www.alexandercillan.com

For anything related to your data, write to hello@alexandercillan.com.

What data is collected and why

When: You send an email or a message on WhatsApp, Telegram or Discord
What data: Your name, contact details and whatever you include in the message
Why: To reply and, if you want, prepare a proposal
Legal basis: Steps you asked for before a contract (Art. 6.1.b GDPR)

When: You book a call through “Schedule a call” (Cal.com)
What data: Name, email, chosen time and any notes
Why: To schedule and hold the call
Legal basis: Steps you asked for before a contract (Art. 6.1.b GDPR)

When: We work together
What data: Contact, billing and project details
Why: To deliver the project and invoice it
Legal basis: Contract and legal obligations (Art. 6.1.b and 6.1.c GDPR)

When: You browse the website
What data: Anonymous statistics: pages, referrer, approximate location (city and country, from the connection), device type and browser. No cookies, no stored IP address
Why: To see which content is useful
Legal basis: Legitimate interest (Art. 6.1.f GDPR)

When: Any visit
What data: Technical logs kept briefly by the hosting provider, such as IP address and browser
Why: Security and preventing abuse
Legal basis: Legitimate interest (Art. 6.1.f GDPR)

When	What data	Why	Legal basis
You send an email or a message on WhatsApp, Telegram or Discord	Your name, contact details and whatever you include in the message	To reply and, if you want, prepare a proposal	Steps you asked for before a contract (Art. 6.1.b GDPR)
You book a call through “Schedule a call” (Cal.com)	Name, email, chosen time and any notes	To schedule and hold the call	Steps you asked for before a contract (Art. 6.1.b GDPR)
We work together	Contact, billing and project details	To deliver the project and invoice it	Contract and legal obligations (Art. 6.1.b and 6.1.c GDPR)
You browse the website	Anonymous statistics: pages, referrer, approximate location (city and country, from the connection), device type and browser. No cookies, no stored IP address	To see which content is useful	Legitimate interest (Art. 6.1.f GDPR)
Any visit	Technical logs kept briefly by the hosting provider, such as IP address and browser	Security and preventing abuse	Legitimate interest (Art. 6.1.f GDPR)

How long data is kept

Enquiries are kept while they're being handled and deleted within 12 months if no project follows. If we work together, project and billing records are kept for as long as Spanish tax and commercial law requires (generally up to 6 years). Visit statistics hold no IP address and no identifier that lasts longer than a day, and are only looked at in aggregated form.

Who processes data on our behalf

Cloudflare, Inc. (USA): website hosting and delivery.
Supabase, Inc. (servers in Frankfurt, Germany): storage of the website's own anonymous visit statistics.
Cal.com, Inc. (USA): call bookings, only if you use “Schedule a call”.
Namecheap, Inc. (USA), Private Email service: email.
WhatsApp (Meta), Telegram and Discord: only if you choose to contact us there. Their own privacy policies apply.

Your data is never sold or used for advertising.

International transfers

Some of these providers are based in the United States. Transfers rely on the EU–US Data Privacy Framework where the provider is certified, or on the European Commission's Standard Contractual Clauses.

Your rights

You can ask to access, correct or delete your data, object to or restrict how it's used, and get a copy in a portable format. Write to hello@alexandercillan.com.

If you think your rights haven't been respected, you can complain to the Spanish Data Protection Agency (aepd.es).

Changes

This policy may be updated. The date at the top always shows the current version.

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