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Tamino Mertin, freelance web & AI development

Websites.Web apps.AI.

newly added

I've been programming since I was 12. Today I study business informatics and build websites and AI features with Next.js.

  • Next.js
  • TypeScript
  • React
  • Tailwind
  • Supabase
  • Claude API

About me

Developer with a business mindset

I'm Tamino, 20 years old, a business informatics student and freelance web and AI developer. I've been programming since I was 12. My degree covers business models as much as technology. So on every project I first clarify what it is supposed to achieve, then write the code.

My technical focus is Next.js and modern React patterns, complemented by AI solutions: language models in the product, assistants on your own data, and automated workflows.

Working with me is structured and direct: a clear briefing, transparent communication, a deliverable result. I work fully remote and only take on projects where I can add real value.

Role
Freelance web & AI developer
Focus
Websites · Web apps · AI integration
Location
Germany · remote
Available from
Now
Languages
German · English

Projects

All built by me.

Screenshot of the website fokusclan.de
Screenshot of the website fokuseagles.com

FOKUS

Esports organisation from Cologne / two websites

The main site with teams, creators and partners, and the site of the FOKUS Eagles in the Icon League.

Next.js / social feed / match schedule / Twitch live status / roster with player profiles

Result2,648 clicks from Google Search since June 2026. Plus 7,844 impressions in Google Search's AI features.

Daily clicks on fokusclan.de from Google Search: almost zero until the end of July, then up to 120 a day
Clicks per day, June to October 2026Source: Search Console

FOKUS Eagles: 1,898 clicks since March 2026, average position 4.1.

fokusclan.defokuseagles.com

Screenshot of the website immowerk360.de

immowerk360

Construction support and real estate brokerage, Langenhagen near Hanover

Marketing site that guides enquiries for three business areas. No trackers and no marketing cookies.

Next.js / marketing site

Result100 out of 100 for performance, accessibility, best practices and SEO.

Source: PageSpeed Insights, mobile, 7 Oct 2026

immowerk360.de

Screenshot of the website cgn.gg

CGN Esports

Website for the Cologne esports club, with news, talents and shop.

Next.js / shop integration

Result10,381 clicks from Google Search since June 2025.

cgn.gg

Also

SEO and GEO optimisation for Scheunemann Immobilien Service KG in Bergisch Gladbach. The existing design stayed.

1,247 clicks from Google Search since the end of August 2025.

Services

Four services in two areas. Billed at a fixed price based on a clearly defined scope.

What I build for you

Web01 – 02

01

Websites

Marketing sites and landing pages that turn visitors into inquiries. Fast to load, clearly structured, no template.

  • Marketing sites · Landing pages
  • CMS integration
  • Performance · A11y audits
02

Web apps

Custom applications with Next.js: from auth and database to the finished UI, on a design system that grows with you.

  • Next.js · React
  • Auth · DB · APIs
  • Design systems

AI03 – 04

03

AI integration

Language-model features in your web app and assistants that draw their answers from your own content, such as documentation or product data.

  • LLM features
  • Chatbots · Assistants
  • Your own data (RAG)
04

Automation & agents

Recurring workflows a model handles reliably: processing documents and emails, extracting data, connecting tools.

  • Documents · Emails
  • Data extraction
  • Tool integration

How I work

Four phases, transparent and without surprises.

Process

  1. 01

    Discovery

    Together we clarify what the project really needs: goals, audience, technical constraints and timeline. The result is a clear scope document we can both rely on.

  2. 02

    Concept

    I work out the technical architecture, pick the right stack and define structure and components. Where needed, wireframes or a design system serve as a shared foundation.

  3. 03

    Build

    Development in short iterations with regular review loops. You see the progress on a staging system, can give feedback and adjust priorities before anything goes live.

  4. 04

    Launch

    Deployment, handover and documentation. Afterwards you know how to maintain the site on your own. I stay available for questions and smaller adjustments after launch.

FAQ

Contact

Let's talk

Got a project in mind or a specific question? Tell me briefly what you're planning and I'll get back to you with an honest assessment.

Usually a reply in 1 to 2 business days.