Freelancer profile translated to English.

Description

Senior UI/UX Designer based in Berlin. Specializing in Product Design, UI Systems, and the intersection of Design and Code. Actively involved in the AI/Agent ecosystem with a focus on practical implementation and a critical mindset ("Tool instead of Agent").

Professional Background

Senior-level expertise in digital product design

Freelance work with client projects in the greater Berlin area

Previous roles in digital product teams

Experience with AI-powered prototyping and product development

Areas of Expertise

Product & UX/UI Design: Core competence, from strategy to implementation

Frontend Development: Code as a natural extension of the design process

AI Experimentation: LLMs, Agent Systems, AI-assisted Coding (Claude-focused)

Practical Implementation: From iOS app concepts to custom tools

Languages

German
Native or bilingual
English
Conversational

Workplace preferences

Can work on-site

Berlin (up to 50km)

Off And On Again GmbH
Co-Founder and Managing Director
INTERNET OF THINGS (IOT)
October 2021 - May 2023 (1 year and 7 months)
Berlin, Germany
In addition to my management responsibilities, I was in charge of UX/UI, primarily for the Sparkassen-Gruppe as a client.
Wireframing and Prototyping UI/UX Design
Lars Kwiatkowski & worldoptimizer.com
Freelance Sr. Digital Designer
DIGITAL AND IT
June 2003 - Today (23 years)
Berlin, Germany
Senior UI & Frontend Designer (Berlin) focusing on Product Design, UI/UX, and prototypical implementation in the frontend. Experience as a freelancer with digital products and modern design tools.
UI/UX Design Wireframing and Prototyping AI Coding Agentic AI Creation
HERE Technologies
Freelance Digital Designer
TECH
December 2018 - Today (7 years and 6 months)
Berlin, Germany
Campaign assets, advertising banner development with HTML-CSS, design of landing pages and informational brochures.
Banner Design Digital Design HTML5 Adobe Creative Suite

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Photography
Dieter Bühler Photography / OSZ1 Photography Potsdam
1996

Screen Design
CIMDATA
2001
CSS HTML Digital Design Adobe Creative Suite

Lars Kwiatkowski

Senior Digital Designer - Web, UI/UX, Social Media

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