References

From web development, relaunch, and digital products

Selected client work focused on performance, user flow, clear offers, and independence from rigid agency or builder setups.

B&E Baukonzept GmbH

Full rebuild of a conversion-focused landing/marketing page with clear services, new branding, and strong first contact.

99 Performance

LCP 1,8 s · CLS 0

PageSpeed Insights, mobile (lab data)

Lisa-Marie · Fitness & Business Coach

Full relaunch of a coaching platform. Replaced a rigid agency system with a tailored Astro app focused on security and brand identity.

95 Performance

LCP 2,3 s · CLS 0

PageSpeed Insights, mobile (lab data)

Alexander Bartels

Static portfolio with hero, bento portfolio, editorial incl. sedcard (PDF), snapshots, and contact. Dark editorial UI, content managed centrally.

Personal work

Studies, apps & experiments

Alongside client work I use these projects to test heavier setups — from VR and full-stack to performance architecture.

Personal · Game development

Chaotic first-person VR shooter. As project lead assistant: team coordination, C# gameplay, enemy AI, and sound design in Unity.

Personal · In development In development

My own fitness app as a testbed for data analysis, training plans, and SQL optimization with a PHP/MySQL backend.

Personal · Astro & React

This site and earlier portfolio iterations on Astro — focused on performance, clear conversion paths, and lean delivery.

Relaunch, landing page, or new build — I look forward to your inquiry.