Based in Heilbronn, I build stunning, blazing-fast websites (90+ Lighthouse scores) for German innovators and Swiss precision-seekers—intuitive, tailored, and conversion-driven.
What I Stand For
+ Design + Development + Engineering
+ Design + Development + Engineering
+ Design + Development + Engineering
+ Design + Development + Engineering
+ Design + Development + Engineering
+ Design + Development + Engineering
+ Design + Development + Engineering
+ Design + Development + Engineering
+ Design + Development + Engineering
// Services
Heilbronn-crafted Next.js solutions hosted globally via Vercel. Guaranteed 90+ Lighthouse scores & GDPR-ready architecture for Swiss SMEs. Convert visitors 30% faster.
Headless CMS (Contentful/TinaCMS) + Stripe/Shopify. Swiss payment gateways (TWINT/PostFinance) integrated in 1-2 weeks. Hosted on Vercel’s global edge network.
Your platform, your rules: Modern headless CMS (Contentful/TinaCMS) or user-friendly builders (Webflow/Squarespace). E-commerce-ready with Stripe/Shopify integration. No tech lock-in – always exportable.
Performance first. SEO-optimized builds scoring over 90 Lighthouse. GDPR-compliant analytics setup. Speed monitoring with Vercel Insights. Conversion-focused structures.
SZN Capital® Platform
David as JokerSZN, CEO SZN Capital®
Transformed financial platform vision into a Next.js powerhouse. Mentored designer in web-first principles while achieving 98/100 Lighthouse score and 40% faster load times than competitors.
"QEM helped our designer level up while delivering exceptional quality!"
SaaS Platform JRNL.system 823
Dragos, Founder
Co-created minimalist SaaS platform featuring role-based dashboards and real-time analytics. Bridged design-dev gap through interactive prototype sync and weekly alignment sessions.
"Shipped our MVP in 3 weeks with perfect design-code alignment!"
Building digital flames to ignite your brand — pick a package that fits your needs.
Essential CMS website for quick online presence
Spark
10-14 days deliveryCustom Next.js solutions for growing businesses
Flame
2-4 weeks deliveryComplex web apps & ongoing collaboration
Inferno
4+ weeks delivery"Whether you win or lose, what's important is the effort to surpass your limits. Push past your boundaries and seize the moment. Remember, your life is not your own - it has been given to you by others. So do your best to make it count."
"Whether you win or lose, what's important is the effort to surpass your limits. Push past your boundaries and seize the moment. Remember, your life is not your own - it has been given to you by others. So do your best to make it count."
DRAGOS X QEMDEV
"No matter how weak or unworthy you feel, keep your heart burning, grit your teeth and move forward! If you just curl up in a ball and hide, time will pass you by. It won't stop for you while you wallow in grief."
- Rengoku Kyojuro
QEMDEV.COM
"I am very happy with the results of the website! The design was implemented exactly as I wanted, the work was quick and reliable, and even after completion I continue to receive great support of Qem. Clear Recommendation!"
David as JokerSZN
Engineer - Trader - CEO, SZN Capital
Here are some of the most common questions I receive from my clients