Cypherweb Development
Hi, I'm David - a full-stack developer from Germany. I build modern web applications using TypeScript, React.js, Next.js, and Nest.js - from accessible user interfaces to robust backends.
About

About Me

I'm David Witten, 30 years old, living in the heart of Germany.

In early 2017, I discovered my passion for software engineering when I came across Bitcoin and started learning web development. From 2018 to 2022, alongside my studies in Physical Technologies (B.Eng.), I developed numerous web applications to master modern React.js and Next.js development, as well as websites for friends and family. In 2020, I launched a SaaS platform, offering a unique cryptographic service for Bitcoin wallets.

In 2022, I began working as a Blockchain Consultant and Web Developer at SVA System Vertrieb Alexander, a leading German IT system integrator. There, I gained experience with SSI (Self-Sovereign Identity)/Digital Identities and developed several applications utilizing blockchain and advanced authentication and identity methods.

I am deeply passionate about learning new technologies, working on exciting projects, and continually seeking opportunities to enhance my skills. Currently, I'm working remotely and focusing on my own projects. I'm looking forward to collaborating with new people and contributing to the tech community.

I have strong communication and problem-solving skills, excellent time management, and a solid understanding of the English language. I'm also a great listener and a strong team player.

In August 2024, I was finally ready to take the leap into self-employment as a freelance web developer. If you're looking for an experienced developer who can provide innovative solutions and help drive your business forward digitally, I would be excited to hear from you and achieve new successes together.

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I place great importance on collaborating with my clients and encourage open communication.
I am very flexible when it comes to communication across different time zones.
I am constantly striving to improve my tech stack.
  • ReactJS
  • Express
  • Typescript
  • NestJS
  • NextJS
  • CSS / CSS3
  • SCSS / SASS
  • TailwindCSS
  • Bootstrap 5
  • MaterialUI
  • MongoDB
  • GraphQL
  • MySQL
  • Ether.js
  • Web3.js
  • bitcoinjs-lib
  • Chart.js
  • Three.js
  • framer motion
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Tech enthusiast with a passion for frontend development.
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Specialized in the integration of modern authentication methods, using both centralized and decentralized technologies and protocols.
Would you like to start a project together?
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My Experience

My Approach

Phase 1: Planning & Strategy

We'll collaborate to map out your website's goals, target audience, and key functionalities. We'll discuss things like site structure, navigation, and content requirements.

Phase 2: Development & Progress Update

Once we agree on the plan, I cue my lofi playlist and dive into coding. From initial sketches to polished code, I keep you updated every step of the way.

Phase 3: Finalisierung & Launch

This is where the magic happens! Based on the approved design, I'll translate everything into functional code, building your website from the ground up.

A Selection of my Projects

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Bitcoin Vanity Address Generator

A SaaS that generates trustless Bitcoin addresses with a defined prefix. The world's leading Bitcoin vanity address generator.

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OverStackingFlow

Stack Overflow clone with AI-LLM integration - in development.

Contact

Contact

Send me a Project request or call me: +49 171 5186152