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

UI/UX design

UI/UX design and redesigns for SaaS, AI and crypto products: clearer navigation, one consistent system and screens people understand at a glance.

Good UI/UX is what makes a product feel reliable. I redesign interfaces for SaaS, AI and crypto products, and design new ones, so people can find things, finish tasks and trust what they see.

A refresh updates the look: colors, type, icons. A redesign also changes structure, navigation and flows. If users struggle to find things or finish tasks, a refresh won’t fix it, so every project starts by working out which one you need.

What’s included

UX audit of every screen and state, against two or three clear goals.
Navigation that always says where you are: clear sections, simple page actions, names that don’t change.
Flows for the journeys that matter, one step per question when a form gets long.
Interaction: one button system, and every state designed, not just the happy path.
Accessibility from the start: text contrast that meets WCAG AA, visible focus states, keyboard support and touch targets big enough for a thumb.
A component library in Figma, so design and development stay consistent.

Products with a lot going on

AI products, dashboards and trading tools carry a lot of information. Two principles keep them usable: a clear hierarchy, so the key numbers stand out from everything around them, and good feedback while things load. In AI products, generation takes time, so progress, previews and history are core screens, not edge cases.

See it in practice in the ChromaAI redesign and the SaaS redesign checklist.

How a project works

Four crisp steps with daily check-ins and zero guesswork, so every project stays on track and ships on time.

01Kick-off. We align on goals, scope, and timeline, then send a clear invoice so everyone knows exactly what’s included.
02Project start. Once payment clears, we dive straight in to keep momentum high and your launch date on track.
03Daily check-ins. You receive a brief progress note or visual each day, ensuring quick feedback and zero drift.
04Ship & refine. We deliver launch-ready files and give you time for a final check or tweak before we wrap.

Selected work

Case studies

ChromaAI landing page: ‘Create viral content in minutes, not days’

Case study · June 21, 2026 · 5 min read

ChromaAI: redesigning an AI content platform across 100+ screens

How I turned ChromaAI’s MVP into one cohesive creator platform: 100+ redesigned screens, a design system for 10+ AI tools and a 30-second launch video.

ArbX dark dashboard with wins, losses and earnings charts

Case study · July 23, 2026 · 5 min read

ArbX: designing a sports analytics dashboard you can read at a glance

How I designed ArbX, a sports betting analytics SaaS: a dark dashboard you can read at a glance, a step-by-step simulator and an animated pricing grid.

Sculpt AI app screens: Push Day workout plan, calorie tracker and an exercise timer

Case study · September 2, 2026 · 6 min read

Sculpt AI: brand, motion and 150+ screens for an AI fitness app

How I led the creative for Sculpt AI: a new brand identity, splash motion, a new user flow and 150+ screens for an AI app that unites workouts and food logging.

Timepiece FNF ‘Sell your luxury timepiece’ page with a skeleton watch and client testimonials

Case study · June 28, 2026 · 4 min read

Timepiece FNF: luxury watch branding, website and a sell-your-watch platform

Brand refresh, a dark-mode website and a multi-step ‘sell your watch’ flow for Timepiece FNF, a luxury watch dealer group with $10M+ in verified sales.

Frequently asked questions

What’s the difference between UI and UX design?

UX is how the product works: structure, navigation, flows and states. UI is how it looks and feels: layout, type, color and components. They’re designed together, because a clear structure needs a clear interface to show it.

What makes UX for AI products different?

Generation takes time and results vary, so loading states, previews, history and retries matter more than in most software. Good feedback makes the product feel fast even when the model isn’t.

Should we build a design system before redesigning screens?

Yes. Agreeing on layout, navigation and core components early means every screen designed afterwards fits together, and new features are much faster to design and build.

How quickly can we start?

It depends on the current schedule. Send a message with your project and deadline, and I’ll reply within 24 hours with availability.