Introduction

This is a portfolio of technical work I've done over the past few years across web3 projects, including APIs, guides, tutorials, applications, CLIs, and demos.

Some of it was produced during professional roles at Myria, Chainlink, OMG Network, and Paytomat. The rest was built during technical interviews or as personal side projects.

You can find the source code for most apps in the Vault monorepo:

https://github.com/thisonedev/vault

Note: not all content was restored, but this website covers the main topics. Additional files (PDFs, YAML, and videos) are available in this directory.

Work Done for Clients

Myria (Jun 2022 – Dec 2022)

• Built and shipped a developer portal, attracting multiple high-quality clients within the first few weeks.
• Decreased partner integration time by 70–80% with a TypeScript SDK Samples App.
• Reduced technical support ticket volume by 50–60%.
• Role was eliminated during a company-wide restructuring following multiple rounds of layoffs.

Chainlink (Feb 2021 – Sep 2021)

• Helped structure and open-source the Chainlink developer portal, increasing developer engagement by 25–35%.
• Authored guides and tutorials for EVM-based blockchain integration and Chainlink data providers.
• Gathered and implemented developer feedback, reducing support questions by 30–40%.

OMG Network (Mar 2020 – Dec 2020)

• Decreased integration time for key partners by 60–70% with wallet and exchange use cases.
• Major contributor to a technical spec for The Great Reddit Scaling Bake-Off, which received the highest ranking from the Reddit team and community.
• Shipped a web app for network interaction, improving integration time by 30–40%.
• Maintained a React-based developer portal using Docs as Code methodology, saving an average of 10 hours per week.
• The company was acquired and followed by a cross-department layoff and full team restructuring.

Paytomat (Jan 2017 – Sep 2019)

• Increased audience engagement by 35–45% within the first few weeks of implementing a new content strategy.
• Contributed to two whitepapers, increasing interest from non-technical clients by 30–40%.
• Delivered API documentation and managed product integration for key Point-of-Sale providers: NCR, Poster, 1C.
• Participated in the Google Design Sprint, MaGIC Accelerated Program, and a National Ukrainian Record for the largest number of cryptocurrency purchases in a single location within three hours.

Side projects. Demos. Experiments

Tether

Module implementation and code samples for wdk-wallet-sui and wdk-cowswap, built as part of the WDK wallet toolkit.

Hyperliquid

A Hyperliquid API documentation, optimized for OpenAPI and Mintlify.

TON

A TypeScript CLI, an AppKit starter kit for Telegram Mini Apps, and a Hello World smart contract sample for the TON blockchain.

Hive

A set of web apps built while managing a Hive validator node, including a blockchain explorer, a governance and proposals interface, and an apps directory.

Research

Deep dives and breakdowns on emerging and established protocols, covering infrastructure projects, social currencies, 0-to-1 primitives, and more. Produced as part of an AI-native research workflow.