Kostas Diam

Full-stack developer building production web apps and SaaS products for businesses and marketing agencies.React JS, Next.js, TypeScript, Tailwind-motion, Supabase, Node js, Stripe. Based in Greece, with 8 years of UK experience.

Skills Overview

I build production web applications and SaaS products for businesses and marketing agencies, the kind of work that handles real traffic, takes payments reliably, and doesn't break a year after launch.

My focus is the modern Next.js stack: React, TypeScript, Tailwind, Supabase, and Stripe, deployed on Vercel with Cloudflare for media and CDN. I pick the right database, architecture, and integrations for each project. No over-engineering, no stack nostalgia.

I've shipped multiple production SaaS products end-to-end, integrated payment systems with subscription logic and discount handling, built bilingual platforms for clients serving Greek and English markets, and worked with AI APIs (Claude, Groq, OpenAI) where they solve real problems rather than add complexity.

I work with two kinds of clients: founders and businesses who need web platforms built properly the first time, and marketing agencies looking for a discreet white-label development partner who handles delivery while they stay client-facing.

Based in Greece, with 8 years of experience working with UK and EU clients. Bilingual Greek/English. Currently taking on a small number of new projects each quarter.

Take a look at the work below, andget in touchif you have a project that fits.

React projects

Click here to navigate to my personal React projects.

Angular projects

Click here to navigate to my personal Angular projects.

Vue Projects

Projects built with Vue and Nuxt3 js.

Python projects

Click here to find many Python projects where my journey into tech has started.

CMS Projects

Projects made with cms builders like wordpress and nicepage.

Docker projects

Click here to navigate to my Docker projects.

Contact Me

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