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[01]Digital Design Studio

We build digital products for ambitious brands.

Websites, branding, software and mobile apps — digital products for brands with ambition.

Start a project →Selected work
5.0
Google · 21 Reviews
3M+
Users reached
100
PageSpeed score
[02]Selected Work / 2024 — 2026

What we've built.

01
Die Lackier-Werkstatt
Website · Branding
2025↗
02
UnfallFix24
Website · Software
2025↗
03
Mousa Export
Website
2025↗
04
Steak Club
Website · Branding
2024↗
05
Josh Jabs
Website · Branding
2024↗
06
Umzugsservice
Website · SEO
2024↗
[03]Services / What we do

Four disciplines. One team.

01

Websites

High-performance marketing sites, landing pages and corporate websites — built for conversion and speed.

  • Next.js & React
  • Headless CMS
  • SEO & Performance
  • A/B Testing
02

Branding

Brand identities from logo to design system — identities that stick and stay consistent across every touchpoint.

  • Logo & Wordmark
  • Visual Identity
  • Design System
  • Brand Guidelines
03

Software

Custom tools, internal platforms and SaaS products. From MVP to scalable enterprise solution.

  • Web apps & dashboards
  • API & Backend
  • SaaS platforms
  • Internal tools
04

Mobile Apps

Native and cross-platform apps with first-class user experience — iOS, Android and everything in between.

  • iOS & Android
  • React Native
  • App Store launch
  • Push & Analytics
[04]Process / How we work

From briefing to launch.

01/04

Strategy

We get to know you and your brand. Goals, audience, competition. Out of that comes the roadmap everything else stands on.

Briefing & WorkshopCompetitor AnalysisBrand StrategyRoadmap
02/04

Design

Identity, interface, prototype. This is where the brand becomes visible — from logo to the last pixel of the site.

Brand IdentityWireframes & UXUI DesignDesign System
03/04

Build

Engineering on a modern stack: Next.js, React, performance-first. Clean code that scales and still runs in five years.

Frontend & CMSBackend / APIPerformance & SEOQA & Testing
04/04

Launch & Care

Deployment, monitoring, continuous optimization. We stay on it — your brand grows, and we grow with it.

Go-LiveAnalyticsMaintenance & UpdatesIteration & Growth
[05]Studio · Headquarters

Our studio in Bocholt is our Place-To-Be.

This is where websites, brands and digital products are built for ambitious companies — no open-plan office, no floor plan, just direct access and short decision paths.

Founded
2025
Clients
30+
Region
NRW
Visits
By appointment
Studio
DuoSeek Studio
Weidenstraße 58
46395 Bocholt
51.8336° N · 6.6131° E
Open in Maps ↗
[06]Results

Results.

Websites, optimized for real outcomes.

93 Mio
Page views
3 Mio
Unique users
1 Brd+
Network requests
↗ +47%
Growth
Websites, optimized for real outcomes.
  • On-page SEO— Ready to be found on Google.
  • Tracking & Analytics— User stats & marketing cookies.
  • 100% Responsive— Desktop, tablet, mobile — and everything in between.
  • ROI-first— Most out of every ad euro.
From A to Z, one team.
ABriefing
Start
BConcept
Route
CDesign
Look
DBuild
Code
ZOperate
Live
Workflow · One team | 0 handoffs
Four scores. All 100.Google Lighthouse · Live
100
Performance
100
Accessibility
100
Best Practices
100
SEO
[07]Profile · Mind behind

Kerim Bilin.

FounderDeveloperDesigner

First HTML project at the age of ten. Today DuoSeek is a studio with over eleven years of experience — developer, designer and management in one person.

Age
20
Years coding
11+
First project
2015
Location
NRW
[08] Contact

Let's talk.

Direct line to Kerim — no account manager and no briefing phone-tag between departments. Tell us about your next project for ambitious digital products, and we'll reply within 24 hours.

Reply within 24hQ3 / Q4 available
Briefing

Send us a short briefing.

FAQ / Frequently asked

Answers up front.

Six answers that make briefing calls shorter — the full FAQ lives on its own page.

  • 01What does a website at DuoSeek cost?

    Fixed price after a briefing call. Marketing sites start around €1,490; complex builds are scoped individually. No hourly billing, no hidden cost — you know the number before anyone starts working.

  • 02How long does a project take?

    A focused marketing site takes 4–6 weeks, branding 6–8 weeks, software projects from 12 weeks. A concrete timeline with milestones follows the briefing call.

  • 03Which technologies do you use?

    Default stack: Next.js 16, React 19, TypeScript 5, Tailwind CSS 4, Supabase (Postgres), Stripe and Vercel. CMS varies by project (Sanity, Payload, Contentful). No WordPress, no Wix.

  • 04Do you only work in Bocholt or Germany-wide?

    The studio is in Bocholt, NRW — projects run Germany-wide, across the DACH region and internationally remote. On-site meetings in Bocholt by appointment; kickoffs and workshops also at the client's office.

  • 05Who works on the project — a team or one person?

    Kerim Bilin — founder, developer and designer in one person. Every project is delivered directly by the founder, never handed off to juniors. Maximum four parallel projects per quarter to safeguard quality.

  • 06Do I get the source code and full access?

    Yes. On full payment, exclusive usage rights are transferred and the repository moves to your GitHub or GitLab. No vendor lock-in, no licensing trap.

Read the full FAQ →

Verify our claims.

We name the stack, performance targets and standards openly. Use these references to verify them yourself.

  • Next.js 16↗

    Production framework powering every DuoSeek site.

  • React 19↗

    UI library — official docs by the React core team.

  • Vercel↗

    Default deployment platform with Fluid Compute + AI Gateway.

  • TypeScript↗

    Type-safe codebases — official Microsoft documentation.

  • Core Web Vitals↗

    Google's performance standard — how DuoSeek measures speed.

  • Schema.org↗

    Open standard behind the structured data on this page.