I design and ship products. One practice, no handoffs.

Stelios Diamantopoulos. Independent designer and developer, Athens, since 2019. Eleven shipped case studies, two project slots open for Q3 2026.

Brand Story Teaser (split)

Brand Story Teaser (split)

Newsletter / CTA strip

Selected Work (case study cards)

Anthos Olive Oil

Anthos Olive Oil

2023 — Brand + Headless Commerce — "+41% online revenue, EBGE 2023 Silver."
Karavan Travel

Karavan Travel

2024 — Mobile App + Design System — "Shipped iOS + Android in 14 weeks; 18,000 MAU at month six."
Loft Studio Athens

Loft Studio Athens

2024 — Brand + Booking Site — "Replaced three SaaS tools; saved €4,200 per year."
Eos Robotics

Eos Robotics

2022 — B2B SaaS Dashboard — "Reduced operator-error tickets by 62 percent."
Stoa Civic Tools

Stoa Civic Tools

2023 — Open-source UI Kit — "Adopted by four municipal projects in Greece."
Tessera Editions

Tessera Editions

2025 — Brand + WooCommerce — "Sold-out first edition in 36 hours."
Discovery call

Discovery call

60 minutes. We agree on the problem, not the solution.
Written proposal

Written proposal

within four working days. Scope, fee, timeline, what is excluded.
Sketch + Sprint Zero

Sketch + Sprint Zero

first week. Lo-fi sketches, design tokens, repo set up.
Build

Build

daily Loom updates, weekly Friday demo on a real staging URL.
Handoff

Handoff

staging to production deploy, written handoff doc, 30-day warranty on bugs.

Stack

Design

Design

Figma, Linear, Loom, Are.na, Notion
Frontend

Frontend

Next.js 15, React 19, Tailwind CSS, Astro, Framer Motion
Backend

Backend

Laravel 11, PostgreSQL, Supabase, WordPress (block themes)
Ops

Ops

Vercel, Hetzner, GitHub Actions, Sentry, Plausible

Journal preview

Heading: "From the Journal"

Heading: "From the Journal"

3 post cards:
CTA: "All journal entries →" /journal/

CTA: "All journal entries →" /journal/

Block: fx/services

Pricing

Product Design Sprint

from €6,800.
Choose plan

Brand Identity Package

from €8,500.
Choose plan

Site Build

from €11,400.
Choose plan

Retainer

€5,200/month
Choose plan

As Seen In

Heading: "Press & Awards"

What Our Clients Say

“Three agencies pitched. PortfolioX was the only one that asked the right questions before proposing anything. The result reflected that.”
Ioanna Lampridis
Thessaloniki
“The project ran on time, on budget, and the work held up under real conditions. I cannot ask for more than that.”
Marco F.
Milan
“Working with a small studio that genuinely cares is a different experience. Every detail was thought through.”
Despina Karagianni
Patra
“The team is fast, opinionated, and not afraid to disagree. That is exactly what we needed.”
Lukas N.
Munich