## Philipp Klein (*1986, Germany)
**Berlin based, Full-Stack & Blockchain Developer / Consultant**
*state: April 2023*

I have more than 15 years of experience in the web industry.
Throughout the years I came across several programming languages, frameworks, database systems and platforms. I consider myself an agnostic technologist. I studied Business Informatics and Visual Communication / Generative Art in Berlin and Tokyo.

Since 2017 I work almost exclusively in the blockchain industry. I worked on projects for Aeternty Blockchain where I created dApps, a Wallet, a Blockchain Explorer, a Smart Contract IDE, tokens and token migration systems (ethereum to mainnet). I consulted with the core team on the roadmap for API and contract language features and onboard developers and UI/UX designers into the Ecosystem. For UTU Protocol I worked on a private token sale on ethereum with KYC integration. I created developer resources and onboarding dApps for Celo and Tezos. Being part of an EU-funded consortium 'CO3' I developed a web based wallet PWA, Solidity contracts and maintained instances of Hyperledger Besu.

In 2021 I worked as a freelance blockchain developer and consultant. For my clients I conducted hiring interviews, audit smart contracts, create learning resources and host workshops.

Since March of 2022 I work for Fuel Protocols in Berlin where I write audited smart contracts in solidity, take care of deployment, security and all things necessary to run a agile startup with a small team (even doing UI/UX in Figma).

My current skills and tech stack include: Solidity, Nodejs (NestJS), React (NextJS), Vue, GraphQL, Smartpy, CameLIGO and the respective ecosystems. My home is the command line on Linux and macOS. I am a passionate NeoVim user. Needless to say, I am fluent in everyday Git and the usual tools. I have superficial and dormant knowledge of the usual suspects; Java, C/C++, Rust, Go, Python, Japanese, PHP, Ruby (Rails), Bash, AWK, SQL etc. in no meaningful order.

Furthermore, I have gained business skills through past entrepreneurship and as a shareholder in several private companies. I have some have experience in legal aspects of shareholder agreements, valuation of enterprises, accounting and financing.

## Work
### since march 2022
**Fuel Protocol** [onfuel.io](https://www.onfuel.io/)
**Lead Blockchain Developer**

Fuel is a pre-seed startup that helps labels and musicians to benefit from the expected growth of the creator economy. One pillar is NFTs as access pass for token gated "fan to artist" experiences.

My responsibilities:

- write, test and deploy smart contracts
- take care of external audit (CertiK)
- conceptualise and maintain infrastructure for contract interaction
- aggregate on-chain data to be used in off-chain backends
- blockchain analytics (sock-puppet detection)
- frontend and backend integrations with contracts/blockchain
- streamline blockchain related UX
- play dart

Techstack: Solidity (hardhat), Defender (OpenZeppelin), Alchemy, RoR (with event sourcing and aggregate root), NestJS, NextJS, Heroku, Netlify, AWS.

### 2021 - 2022
**Freelance Blockchain developer / consultant**
Notable clients include Bitbond, Dacade.org and Tezos
- hosting smart contract workshops
- auditing legacy smart contracts
- conducting hiring interviews
- creating tutorials and learning materials

### 2017 - 2021
**Unit U+2467 GmbH** (Ape Unit subsidiary)
Frontend, backend / smart contract developer and manager.
Notable clients include Aeternity Blockchain, Tezos Blockchain, Celo Blockchain, UTU Protocol, DAOStack, Cosmos, CO3 Conglomerate.
Tech stack: NodeJS, GraphQL, Vue / React, AWS, Docker, Firebase, Solidity

### 2015 - 2017
**Ape Unit GmbH**
Frontend & backend development for interactive web and exhibition experiences, games, E-commerce, video streaming portals, CMS Websites.

Notable clients include E.ON, Telefónica Deutschland, TYPO Conferences, Teambank AG, thyssenkrupp AG, eBay and Volkswagen.

Tech stack: NodeJS / PHP, MySQL/MongoDB, Vue / Angular, AWS, Docker

### 2007 - 2015
**Freelance Software & Web Developer**
Web based in house applications (appointment management, CRM) for small businesses.
Countless "Boutique Design" websites with CMS for artists, galleries, designers and architects.
Interactive audiovisual programming for art installations.

### 2008 - 2010
**Jethammer GmbH**
Frontend & backend development of a web based private jet flight auction platform. Based on Ruby on Rails, MySQL and jQuery/AJAX.

### 2007
**Knorr-Bremse AG**
Development of a Web based Document Management Systems that integrated in the company-wide Active Directory SSO.
Refactoring of several .Net C# based in house tools for Automotive Embedded Systems Programming.

### 2005 - 2007
**Data Consult Munich**
Programming, Linux Server and Windows Desktop administration for small businesses.

## Education
### 2013 - 2014
TAMA Art Tokyo
Department Media Art

### 2009 - 2013
UDK Berlin
Visual Communications
Generative Art (Prof. De Campo)

### 2007 - 2009
HTW Berlin
Business Informatics