Andrew Jiménez Marín
I design and build premium websites that load fast and turn visitors into clients.
Selected Work
01Fragrance E-commerce · 2026
Blades Privé
An editorial storefront for premium fragrance.
View case study
02Streetwear E-commerce · 2026
Desmos Mind
Gothic gym-wear with kinetic type and real-time catalogue.
View case study
03Wellness Studio · 2026
Casa Yoga + Surya
A calm, breathing home for a wellness studio.
View case study
04Artist Portfolio · 2026
Mabel Marín
A stage-lit portfolio for a theatre director & playwright.
View case study
By the numbers
- 04Live client projects
A fragrance house, a streetwear label, a wellness centre and a theatre director — four different businesses, four sites designed and built from zero, all live today.
- 100%Shipped & live in production
Nothing here is a mockup. Every project is online, verified in production and still maintained — if it's in this portfolio, it works.
- 00Templates used
Every site starts from a blank page — no themes, no page builders. Your brand ends up looking like yours, not like the next business's.
Services
What I can build for your business.
Every project includes custom design, a mobile-first build, on-page SEO and a production deploy on your own domain — plus a handover so you can run it.
- 01
Brand & landing sites
A first impression premium enough to back your prices — custom design, scroll-driven motion and a structure built to turn visits into messages.
Design · Motion · SEO · Conversion
- 02
Online stores & catalogs
Catalog, cart and checkout straight to WhatsApp, with a private admin panel to manage your products, prices and categories yourself.
Supabase · Auth · Admin · WhatsApp
- 03
Admin panels & content systems
Update photos, schedules, events and prices without calling a developer — secure login, clear screens, built around how you actually work.
PostgreSQL · Storage · Access control
- 04
3D, WebGL & interactive experiences
Refractive glass, shader backgrounds and scroll storytelling that make people stop scrolling — engineered to hold 60 fps on real devices.
Three.js · R3F · GLSL · GSAP
- 05
AI integration & automation
Assistants, content pipelines and automated workflows wired to current models — Claude, GPT, Gemini — so the repetitive parts of your business run on their own.
Claude · OpenAI · Gemini · MCP
Ethos
A portfolio should out-build the work it shows.
Four sites, four very different worlds — a fragrance house, a streetwear label, a wellness centre and a theatre director's stage. The same standard every time: fast on any phone, easy to find, simple for the owner to update, and measured before it ships.
Process
How the work gets made.
Four phases, the same on every project — each shown next to a real site built this way.
Discovery & strategy
Who you sell to, what makes you different, and the one action the site has to drive — a booking, a message, a sale. Every design decision answers to that.
Design system & motion
Type, colour, spacing and one motion language, defined once and reused everywhere — so the site reads as one brand on every screen, not a collage of templates.
Build & verify
Production code in Next.js, React and TypeScript, accelerated with AI tooling and checked by scripts: real-device performance, Core Web Vitals, WCAG contrast and motion tested with real scroll input. Never ship-and-hope.
Launch & growth
Deploy on your domain, confirm it live, hand over the admin, and keep improving speed, content and SEO long after launch day.
Every “done” on this site was backed by real command output — not a claim.
How it gets verified
- Puppeteer
- Chrome DevTools Protocol
- Core Web Vitals
- WCAG 2.2 AA
- GitHub
- Vercel
About
I build like someone who also runs a business.
I'm Andrew Jiménez Marín, a web developer in Costa Rica with 3+ years building and supporting real systems. I founded and run Desmos Mind, my own online store — so I design every site around what an owner needs: more enquiries, less admin, no surprises. A background in networks and cybersecurity means your site isn't just fast; it's built with security in mind from day one.
- Costa Rica · remote-friendly
- Spanish native · English B2
- 3+ years in tech
- Founder, Desmos Mind
Toolkit
- Frontend & motion
- Next.jsReactTypeScriptTailwind CSSGSAPLenis
- 3D & graphics
- Three.jsReact Three FiberWebGL2 · GLSL
- Backend & data
- SupabasePostgreSQLREST APIsSQL
- AI & automation
- Claude CodeClaudeChatGPTGeminiGitHub CopilotMCP agents
- Ship & verify
- VercelNetlifyGitHubPuppeteerFigma
Credentials
Cisco — Junior Cybersecurity Analyst Career Path
2026
Cisco — Networking: ITN · SRWE · ENSA
2022
ISC2 — Certified in Cybersecurity (CC)
In progress
UNED — Computer Engineering
In progress
AI-native workflow
I work every day with the latest models — Claude (Opus and Sonnet, through Claude Code), GPT and Gemini — plus agentic tooling over MCP. It makes every build faster, and scripts, not eyeballs, decide when it's done.
Contact
Let’s build something worth remembering.
Tell me about your business and what the site has to achieve. I'll reply with a clear plan, timeline and quote — no obligation.
Elsewhere