Jan – Solidity, Smart contracts, Ethereum

A self-owned consultancy providing auditing, development, and advisory services, with clients primarily acquired through referrals.

• Consulted multiple projects on technical aspects of their ICO and designed and deployed their smart contracts;
• Audited a number of smart contracts, discovering vulnerabilities and possible gas optimizations;
• Designed, implemented, and deployed an upgradeable ticketing system utilizing gasless ECDSA signatures;
• Won multiple hackathon awards on blockchain-specific and general hackathons.

A DeFi protocol that issues multiple stable assets and provides services such as overcollateralized minting, swapping, cross-chain liquidity, vesting, and stablecoin-as-a-service.

• Redesigned vesting smart contracts holding over 1.2B USD at its peak;
• Architected and implemented a multi-tiered on-chain incentives program that supports weekly and one-off allocations of points, which has been successfully running for over 2 years with over 100k participants;
• Created a novel multi-tiered staking and delegation system that will be used for Fraxtal network validators, as well as incentives conversion boosting;
• Designed and built a multi-chain LayerZero-powered NFT collection locking over 100k USD of yield-bearing liquidity.

A company developing and publishing NFT 2.0 standards that enable NFTs to evolve beyond static images through composability and versatility, while also operating the Singular marketplace.

• Created multiple NFT 2.0 smart contracts for the open-source package 1000s installs;
• Designed and built documentation for this package with 1000s of monthly users;
• Drove the upgrade of the Singular NFT marketplace from static smart contracts to upgradeable ones;
• Detected multiple high-impact security vulnerabilities, saving the team and customers from potential loss of funds;
• Published 7 Ethereum Requests for Comments (ERCs);
• Designed, created, and deployed public-good repositories across multiple blockchain networks to the same address, with support for gasless interactions.

A DeFi platform on Polkadot and the first parachain to secure a slot, offering an overcollateralized stablecoin (aUSD), liquidity and financial tooling, and advanced EVM precompiles like on-chain scheduling that made it a trailblazer at launch.

• Resolved multiple integration issues for external partners working with a Polkadot-based DeFi platform;
• Designed architecture for advanced DeFi precompiles of the network;
• Created and delivered technical workshops to 100s of hackathon participants;
• Created developer-focused documentation for building on the platform’s stack;
• Facilitated integration of the network with key infrastructure providers.

A laboratory in the University of Ljubljana focusing on research and development of new and advanced solutions in the IT space.

• Designed and built a blockchain-powered electric car charging system;
• Created a collaborative robotics marketplace;
• Founded a token-agnostic blockchain-based charity project;
• Created and delivered courses about blockchain technology, EVM, and Solidity smart contract development.

A global digital product agency that specializes in designing and developing mobile apps, web platforms, and custom software for enterprise and startup clients.

• Assumed the role of acting CTO on a blockchain charity project;
• Assessed potential projects for viability and decided which projects to accept;
• Designed architectures for clients with blockchain-based projects;
• Implemented crucial loyalty features of applications in Ruby on Rails.