Responsive Web Design Experts in Berlin

Fernando Camargo Del Buono

Senior Front-End Developer

Last position:

Senior Front-End Developer at Moss

Moss is a spend-management platform for SMEs that bundles corporate cards, web-based applications and reimbursements, AP/procurement and advanced accounting in one place.
Splits time across Accounting, Spending and Growth tribes, handling requirements gathering, public product design, coding, testing, debugging and internal apps.
Participates in development and maintenance of the design system/UI kit and supports tooling, documentation and developer experience.
Builds form-heavy UIs, drawer-based editing, high-density/resilient tables with server-side filters, pagination, column configurations, CSV/Excel export and bulk operations, all wired for permissions and auditability.
Works with complex cross-entity relationships without a single-schema solution.
Uses React, Redux Toolkit, styled-components, react-hook-form, React PDF, Vite, Lokalise, React Testing Library and Playwright.

Natalia Graf

Senior Product Designer

Last position:

Product Designer at Freelance

Professional Certification in AI Product Design - focusing on Human-AI Interaction, AI powered product experience and integrating generative AI into the product design process. Developing skills in AI Prototyping, Prompt Engineering, AI UX Patterns for the next generation of digital products.

Sascha Bach

Accessibility, Creativity and Innovation for Businesses

Last position:

Professional Development at Career Break

Intensive upskilling program to expand into fullstack, AI, and accessibility - preparing for freelance Angular/React projects with Next.js, Redux, and LLM integration.

Key achievements:

React - The Complete Guide (incl. Next.js, Redux): Comprehensive course on React Hooks, Redux Toolkit, React Router, Next.js App Router, React Server Components, Form Actions (React 19), authentication, unit testing, TypeScript integration, and fullstack apps with HTTP requests.

Practical Prompt Engineering Masterclass: Hands-on masterclass on prompt design, chain-of-thought, few-shot prompting, and LLM optimization for AI-powered frontend features like accessibility checks.

Understanding TypeScript: Deep dive into TypeScript types, interfaces, generics, and integration with React/Next.js for type-safe, scalable codebases.

Design Thinking: Methods for user-centered design, ideation, prototyping, and iteration - applied to accessible UI/UX concepts.

Web Accessibility Training Course WCAG 2.1 & 2.2 Compliance: Detailed WCAG 2.1/2.2 guidelines, BFSG requirements, audit techniques, ARIA widgets, and screen reader testing for compliant Angular/React applications.

New skills: Next.js, Redux, TypeScript, prompt engineering, WCAG, design thinking.

Andrej Becker

Lead UX Design Engineer

Last position:

Lead UX Design Engineer at Journexx GmbH

Leading, designing, and developing the UX and UI strategy and implementing it for the platform
Creating style guides and design systems in Figma
Creating a generic end-to-end layout structure for big data cockpits in Figma and Sass (CSS, design tokens)
Workflows, wireframes, user research, and rapid prototyping
Preparing and facilitating workshops and discoveries
Integrating designs and layouts into existing frontend templates
Prototyping (low-/mid-/high-fidelity) of various apps for journalists and publishers
Developing showcases for iOS and Android, design thinking, qualitative and quantitative user testing, and A/B testing
Frontend development in close collaboration with design teams
Active change management in the publishing and journalism sector and with stakeholders
Company-wide communication and info hub for teams
Raising awareness and getting buy-in for digitalization and new products
Creating concepts and designs for gamification elements on the platform
Convincing major industry players (e.g., WAN-IFRA) about new concepts and revenue streams
Developing new cloud-native apps and revenue strategies
Preparing and creating various materials for change processes
Creating presentations, mini-apps, and info materials to support change campaigns
Leading a total of three teams

Mohamed Keita

Interim Senior Camunda & BPMN Consultant, Spring Boot & Java Backend Developer

Last position:

Interim Senior Camunda & BPMN Consultant, Spring Boot & Java Backend Developer at GEMA/IT4IPM GmbH

Subject matter expert for the client on modeling and developing Camunda BPMN 2.0
Development of new features and APIs, and coordination of tasks
Design and development of RESTful APIs with Swagger (code first)
Creation of target designs, high-level concepts, and requirement specifications
Analysis and evaluation of alternative solution approaches
Integration of external IT systems (ANUBIS, SES, ZPS) via Google GCP Pub/Sub and RESTful web services
Pair programming, code reviews, and collaboration with API product owners
Consulting on transforming legacy BPMN workflows and configuring Camunda BPM
BPMN and DMN modeling and implementation in short iterations
Operational support, bug fixing, and knowledge documentation
Use of TDD, static code analysis with SonarQube, and integration tests
Automation of test cases in Java and analysis of stack traces/logs on GCP-PROD
Identification and execution of test data and documentation of test results

Katarzyna Rodak

Product Designer

Last position:

Product Designer at IBM Denmark

end-to-end design: managing the full design process from user research and ideation to wireframes, prototypes, and final UI designs
secure product UX: ensuring usability and accessibility for complex systems like encryption management and IoT infrastructure
cross-functional collaboration: working closely with developers, security engineers, product managers, and stakeholders to align technical constraints with user needs
design thinking workshops: participating in and facilitating workshops to define user problems and ideate potential solutions
user research & client interviews: gathering insights through direct user and client interactions to inform product features and design direction
feature design & presentations: designing detailed features and presenting them to both technical and non-technical stakeholders for feedback and iteration
implementation support: supporting developers throughout implementation to ensure design quality and consistency
design systems: contributing reusable components and UX patterns to internal design systems for consistency and scalability
usability focus: refining user flows and interfaces based on usability testing and feedback to reduce friction and increase efficiency
technical fluency: serving as a bridge between design and development, translating complex technical requirements into intuitive user experiences

Vamsi Krishna Mylu

Full Stack .NET Developer

Last position:

Full Stack .NET Developer at Neusta GmbH

Implemented and maintained logistics-domain applications using Angular, C#, ASP.NET, HTML5, CSS3, JavaScript, AJAX and Bootstrap
Analyzed, designed, coded and deployed backend services and integrations using .NET, XML Web Services and RESTful APIs
Developed automated SSIS packages and scheduled ETL jobs to support data workflows
Built and maintained Python scripts for automation and prototyping; applied Cursor AI to build/refactor full-stack AI/ML model integrations
Implemented unit and integration testing (NUnit) and conducted performance tuning for backend services
Managed source control and CI/CD using GitHub, Azure CI/CD pipelines and TeamCity

Paulo Andrade

Founder and Product Lead

Last position:

Founder and Product Lead at Muvuca Solutions

Lead a climate tech consultancy end to end, coordinating cross-functional teams, owning client strategy and project management, and delivering ESG strategies and AI-first products.
Stay hands-on across discovery, analytics, roadmapping, architecture, and QA to safeguard execution quality.
Designed, developed, and launched Jody, an AI travel planner (demo credentials provided).

Marco Rodriguez De Paz

Fullstack Developer

Last position:

Fullstack Developer at Artificial Intelligence/LLMs

Built a portfolio website using Vue 3 implementing dynamic pages responsive UI components.
Integrated OpenAI ChatGPT API for interactive AI content generation.
Handled API requests and media management via Cloudflare, enabling efficient communication and asset delivery.
Vue.js
Vuetify
C++, WPF
Debian
Matlab
MySQL
PostgreSQL
Tailwind CSS
Cloudflare Workers
GitHub Actions
Node.js

Ruven Riepert

Product Design Principal / Digital Transformation Consultant / Strategic Designer

Last position:

Product Design Principal / Digital Transformation Consultant / Strategic Designer at Freelance

Lead strategic and operational design initiatives for consultancies, agencies, and enterprise clients focusing on design maturity, customer experience transformation, and global product expansion.
Zooplus - Role: Product Design Principal (via Etribes): Led the strategic design and digital transformation of Zooplus’ shift from a D2C model to a scalable multi-seller marketplace; defined the end-to-end strategy, aligned cross-functional teams, and facilitated C-level decision-making; delivered a modular MVP and experience framework (HEART), enabling a successful pilot launch and projected 15-20% revenue growth.
Zooplus - Role: Lead Strategic Designer (via Etribes): Led the design and experience strategy for a subscription-based Autoshipment feature to increase CLTV and repeat purchases; defined value proposition and integrated experience framework; collaborated with Product, CRM, and Loyalty teams; validated usability, trust, and adoption through behavioral research and testing.
FMCG Brand (Confidential) - Role: Design Leadership & Operations Consultant: Coached Head of Design and empowered design team by establishing DesignOps; facilitated vision and strategy workshops; drove execution; challenged the status quo; aligned design initiatives with business goals; implemented scalable frameworks to improve efficiency, collaboration, and innovation culture.

Jan Schulz

Fullstack Developer

Last position:

Fullstack Developer at Summify.News

Developing an AI-enabled platform that summarizes YouTube channels into daily digests with article and podcast formats.
Built scalable backend in Node.js integrating OpenAI Whisper for transcription and GPT for summarization.
Implemented frontend in React with TypeScript, ensuring responsive design and accessibility.
Set up automated deployment pipelines and CI/CD with Docker & GitHub Actions.

Shraddha Virani

UI/UX Designer

Last position:

UI/UX Designer at MunchTechnoZ

I played a key role in redesigning the user interfaces of several web applications.
Developed seamless user flows with a focus on clarity and ease of use.
Conducted extensive user research, wireframing, prototyping, and iterative testing.
Ensured consistency across different touchpoints.
Advocated for user-centered principles in the development process to significantly improve usability.
Empathy for users combined with consideration of technical constraints.

Valeria Aleksic

Designer & Mentor

Last position:

Designer & Mentor at Freelance

Mentor for the Work in Tech Program at Migrapreneur
Mentored students enrolled in a UX/UI bootcamp, providing guidance on design principles, prototyping techniques, user-centred design methodologies, and portfolio feedback
Provided guidance and support to early-career migrant designers
Currently leading web and branding design projects, collaborating closely with wellness businesses and media agencies to deliver soulful brand experiences
Facilitated mindfulness and wellness classes and workshops centred around meditation, mental-health, embodiment and sound healing

Max Schwarck

Self-employed

Last position:

Self-employed at keny × Designstudio

UI Design
Corporate Design & Branding
Print Design & Event
Websites
Corporate Identity Materials
Catalogs, Flyers, Brochures
Responsive Design
Logo Development
Magazines, Editorial Design
Newsletter
Annual Reports
Outdoor Advertising
Mobile Apps
Photography
Trade Show Equipment
Animated Web Banners
Illustrations
Packaging
Final Artwork (Prepress)
Art Direction
Social Media
3D Design
Campaign Concepts
Posts
3D Renderings in Cinema 4D
Storyboards
Video Editing, Cutting
Animations
Visualization
Motion Graphics
Look Development
Profile Design, Header
3D Typography
Brand Book
Social Media Campaigns
Presentations
Templates
Shooting Development
Instagram / LinkedIn / Facebook / X Services

Dennis Tchouraenkov

UX/UI Designer