web3gungod
Blockchain Engineer
I’m Leo Brandt, a blockchain and full-stack developer who has spent the last 8 years teaching computers to do my work—faster than I can. I build everything from NFT marketplaces and DeFi protocols to AI-powered trading bots that never sleep (so I can).
I’ve worked across Ethereum, Solana, Cosmos, Cardano, and Near, diving into the serious stuff like cross-chain swaps, ZK proofs, and rollups—but also into the fun stuff like P2E games and NFT projects that reached millions in volume.
I love combining AI and blockchain to create smarter systems, whether it’s bots that can out-trade humans or tools that simplify Web3 for users. At the end of the day, I’m just passionate about building cool, complex things that actually work… and yes, I still drink way too much coffee while doing it.
Experience: 8 years
Yearly salary: $96,000
Hourly rate: $50
Nationality: 🇩🇰 Denmark
Residency: 🇩🇰 Denmark
Experience
Core Protocol Engineer
Chainswap 2024 - 2024
Built the future of crypto transactions with ChainSwap cross-chain swap & privacy solutions, built upon cutting-edge CCTP & CCIP technology
Blockchain Developer
Pillzumi 2024 - 2025
First Aged Solana AI Agent project. - Implemented NFT generator by using AI technology. - Built staking project for pillzumi token and zumigold token
Blockchain Front End Developer
Crashr Dapp 2022 - 2024
Created fully responsive web pages in Figma design, employing React, Next.js, TypeScript, SASS, and Bootstrap. Facilitated the retrieval of NFT data, ensuring optimal performance with lazy loading implemented via the react-infinite-scroll component through seamless integration of APIs. Introduced image optimization techniques and incorporated a cookie parser to minimize data load to enhance user experience. Seamlessly integrated APIs for various Cardano wallets, including Nami, Eternl, Flint, Yoroi, and Typhon, providing comprehensive functionality for connection, staking, claiming, and mission tracking. Constructed a Chain-bridge between Cardano and Ethereum, utilizing bridge APIs and bridge contracts to enable seamless interoperability.
Lead Blockchain Developer
August 2022 - 2022
Assumed a leadership role in spearheading the development of an NFT marketplace on the Solana blockchain. Undertook the responsibility of implementing a novel NFT linkdrop on the Near Blockchain on Armored Kingdom project.
Senior Blockchain Engineer & Full-Stack Developer
PayAccept 2020 - 2022
Led the AiriA collection to a total volume of 16.4K SOL approx. 600K USD on MagicEden. Took part in development of Lunachown project First Aged Multi-chain Supported Dapp as smart contract developer. Established Initial Crypto Casino System on Ethereum Chain.
Smart Contract Engineer
Errna 2019 - 2020
Worked with ERC Standard like ERC20, ERC721, ERC 1155, ERC777, ERC1515. Took part in ICO/IDO Launchpad Development.
Full-Stack Engineer
Ciklum 2016 - 2018
Led the development of the front-end utilizing React, Vue, TypeScript and CSS templates such as Bootstrap. Demonstrated proficiency with diverse file systems such as IPFS and COBOL, along with databases including Oracle, NoSQL, MongoDB and Teradata. Actively participated in design, development, testing, and production support possessing extensive expertise across all stages of the application development life cycle. Engaged in the composition of scripts in both Python and JavaScript, facilitating the automation of scheduled queue process commands.
Skills
golang
graphql
hyperledger-fabric
kubernetes
node
nosql
python
robotics
rust
smart-contract
solana
solidity
sql
typescript
web3
web3js
english