Taking responsibility for a dedicated tech stack that incentivizes
users to contribute medical and behavioural data points to
scientific research without giving up ownership or privacy.
Dealing with:
Using foundry for building, testing, scripting. Maintaining
scripts for local and CI deployments. Fuzz & integration
tests. Suite covers NFT, tokenization and crowdsale contracts.
Prepared and supported audits. Uses minimal clones for ERC20
fractions. Maintaining an exhaustive subgraph.
https://github.com/moleculeprotocol/IPNFT
Bonding Curve based market on an ERC-1155 asset, various fee
taking concepts, configurable curve shapes (linear, non zero
upramp, sigmoidal / logistic) and math parameters. Non-trivial
market state transitions. Subgraphs, custom metadata API.
Sophisticated separation of concerns, multisig setup awareness
Primary contributor to all frontend-facing applications (e.g. IPNFTs)
Built many aspects of frontend facing apps, using
Next14/React/TS. Using Viem/Wagmi (2). Dealt with
decentralized encryption (Lit protocol), file upload flows
(arweave, web3.storage), Siwe and AA/4337 support (Alchemy
Account Kit), integrated Privy.
Maintained 2 Lit network nodes (~ $1000/m)
MD for German subsidiary (Desci Entwicklungsgesellschaft mbH)
Trusted signer on all Molecule and $BIO corporate multisigs.
Mainly advocate role, representing agency at events, meetups,
and in public
Specialist dev tasks
built backend / APIs for a fully automated supply chain
solution (resourceful), built fully fledged management
interface (Vue 2, Vuetify). Headless CMS integrations, custom
Spryker projects, Kubernetes debugging, Cloud deployments,
architecture support
Blockchain / Decentralized Evangelist and Developer
Main contributor to "DePA", Ethereum based medical health
records, identity solutions using W3C/DID & VCs, building an
universal Covid immunization certificate verifier (Univax).
exposure to media (security / IT / health publications) for tech
topics & decentralised patient data
university support (HTW Berlin)
supported 5 student groups with techno-economical project
ideas
ran local (coding earth) meetup groups all over Europe
supported tech sales team
Lead Developer / Fullstack
Check24 / eH-Visio GmbH
| Oct 2015 - Dec 2017
Extended familiarity with the Symfony Fullstack MVC framework, using
Doctrine / MongoDB for complex comparison queries. Building a
vertical comparison portal (eye laser surgeries) & a full fledged,
in house CRM solution. Lead dev for a team of 6. Direct
responsibility for product tech stack, deployments & stability.
Relaunched a heavyweight monolithic custom made PHP application.
Scaling across 5 BSD servers / 3 data replicas. Full responsibility
for success. Architected web scraping scheduler & job runner,
migrated hundreds of web scrapers with the team, managed affiliate
business model aspects. Rebuilt frontend with Bootstrap.
Founded a small agency with 3 friends and published an ezine on
mobile devices. AreaMobile became one of Germany's most relevant
tech publications, was listed among the 100 most important German AGOF
sites. I was fully responsible for technical setup, product development
and also worked as chief editor for all mobile publications. Cofounder
and me fully exited the company in 2009. Max headcount: 34, max dev team
size: 10. AreaMobile was sold several times, most recently belonged to
Computec Media but was ultimately closed down in 2022.
supporting welshare to build KYC / AML compliant token launch
primitives, help with token generation, brainstorming and advising
on decentralised storage aspects, app development and data
architectures
helped curating Code Talks 2022 (one of Germany's largest dev
conferences), close collaboration with AboutYOU org team,
organized panels, did introduction addresses, speaker support,
managed team of 7 curators
Freelancer
Warranti
| Summer 22
supported an RWA company with token architecture. Built proof of
concept for a Seaport based trading protocol, using custom on
chain events to signal vaulting of RWAs.
Cofounder
Takeover Movement
| Nov 2021 - Aug 2022
The Takeover Movement was supposed to be a Patreon / Bandcamp
replacement in Web3. Built prototype in Next / Wagmi. Tokengated
deeplinks, Paypal & crypto payment options. Failed after the team
became massively web3-bearish during the FTX / Terra-meltdown
Created out of a finalist project at EthOnline 21. Splice is a
derivative NFT platform that allows NFT holders to mint derived
artworks using p5 algorithms that are stored on IPFS and NFTs
themselves. Derivatives are limited, code style authors get paid
when holders mint new pieces. Failed after remote team didn't
want to take the risk
Built countless TS applications, backends, node servers, database layers, serverless functions etc.
React
5 years of professional experience
All obvious fundamentals, composition, hooks, context, suspense. Deal with SSR & SSG. Most familiar with Nextjs, CRA, Gatsby, Astro.
Solidity
4 years of professional experience
Built ~6 larger contract suites, using Foundry, Hardhat, Truffle. Deep understanding of ABI encoding, byte operations, fix point maths and all relevant tooling
Rust
1 years of professional experience
Can write standalone Rust apps (with some gpt help), understand most concepts, but not a pro. Can build simple Solana programs. Build local tools & eWASM exports
Subgraphs
4 years of professional experience
Setting up schema architectures, local and remote deployments, grafts, imports, studio setups, matchstick-as testing
EVM / Consensus
4 years of professional experience
Deep knowledge of EVM storage layout, Merkle Patricia tries, Proofs. Quite familiar with the PoS consensus system, EIP 1559
EIP ecosystem
5 years of professional experience
Deeply familiar with all major standards (all OpenZeppelin primitives), excited about EIP 6551, 4361, 1271 and their upcoming extensions
Decentralised Periphery
4 years of professional experience
Decentralised Storage: IPFS / Filecoin, Pinata / web3.storage (UCANs), Arweave / Irys. Deeply familiar with Ceramic, EAS. Built identity-aware projects on top of W3C DIDs, VCs, JSON-LD
Cloud Deployments (GCP, Digital Ocean, AWS), Docker, CI/CD, Logging & Monitoring. Running Consensus / IPFS Nodes. Can deploy a payload on K8S and read Helm Charts if necessary.
PHP
infinite years of professional experience
Ragequit the ecosystem in 2019, was professional Symfony user, gave talks at major conferences. Also used Laravel, Zend, Wordpress, Spryker, API Platform
Python
3 years of professional experience
mostly dealing with Jupyter notebooks, writing simulations for Solidity math in Python before continuing in Solidity.