Олександр

OLEKSANDR TKACH
Lviv, Ukraine | [open contact info](look above in the "contact info" section) | [open contact info](look above in the "contact info" section)
LinkedIn | GitHub | Portfolio

PROFESSIONAL SUMMARY

Senior Web3 Architect / Frontend Lead
7+ years of experience in building high-stakes DeFi interfaces and core infrastructure. Specialist in the 'Golden Stack'
(React, Next.js, TS, Tailwind) with a focus on type-safety and architectural purity.
Architectural Vision: Creator of the TUWA Ecosystem (Orbit, Satellite, Pulsar, Nova) - a modular suite for multi-chain
tracking and connectivity that prioritizes local-first state management over proprietary APIs.
Proven Impact: Transformed the UI for Aave Protocol across three iterations (V1, V2, V3); created and supported
governance interfaces for the Aave ecosystem at BGD Labs.
Performance: Consistently delivering 30%+ improvements in app responsiveness through advanced state management
(Zustand/XState) and custom integration patterns (Viem/Wagmi).
Technical Standard: Strict adherence to Node.js LTS stability, uncompromising code quality, and comprehensive
documentation.

TECHNICAL SKILLS

Core: TypeScript, JavaScript (ES6+), HTML5, CSS3/SCSS
Frontend: React, Next.js, Tailwind CSS, MUI, Zustand, XState, React Native (Expo)
Web3: Viem, Wagmi, Solana Kit + Gill, Ethers.js, Solidity (Basic), IPFS (Pinata), RPC Interaction
Tools & Testing: Git, tRPC, GraphQL, Jest, Selenium, Playwright, Vercel, Cloudflare, Docker, Github Workflows,
Enzyme, Vitest

PROFESSIONAL EXPERIENCE

TUWA (Open Source Ecosystem) | Founder & Lead Engineer August 2025 - Present
- Architecture & Vision: Architecting a modular open-source ecosystem for Web3 developers, adhering to a 'Purist
Web3' philosophy.
- Product Development: Developing key packages including @tuwaio/pulsar-core to simplify blockchain interaction
and state management for EVM and SVM networks.
- Tech Stack: Utilizing the 'Golden Stack' (Next.js, TypeScript, Viem, Wagmi, Zustand, Tailwind CSS) to ensure
maximum type safety and performance.
- Roadmap Execution: Managing the full product lifecycle, focusing on core logic and localStorage-based
persistence.

BGD Labs | Software Engineer April 2022 - March 2025
- Web3 Architecture: Developed cross-network Web3 user interfaces with direct interaction to RPC, ensuring high
reliability and data consistency.
- Performance Optimization: Revamped data structuring processes, resulting in a 30% improvement in application
response time and enhanced system usability.
- Tech Stack: Utilized Next.js, tRPC, Zustand, Viem, Wagmi, and Tailwind CSS for scalable UI development.
- Open Source Development: Created and maintained reusable NPM packages (e.g., web3-icons) with
comprehensive documentation.
- Smart Contracts: Designed and implemented simple Solidity smart contracts, focusing on security and efficiency.
- DevOps: Managed deployments via Vercel, Cloudflare, and IPFS (Github workflows + Pinata).
Lend / AAVE | Frontend Developer September 2019 - February 2022
- Mobile & Web Development: Built web applications using React Native + Expo and company websites using React,
SASS, and GraphQL.
- Web3 Integration: Initiated Web3 adoption within projects by integrating Ethers.js for blockchain interactions on the
UI side.
- Backend Integration: Implemented user subscription systems using Node.js, Axios, and Mailgun.

Uptrader | Frontend Developer April 2018 - September 2019
- Component Development: Created and tested complex UI components using React, Redux, and Saga.
- API Optimization: Integrated REST and GraphQL APIs, reducing query response times by 30% for critical features.
- Quality Assurance: Implemented end-to-end testing with Selenium and set up error tracking via Sentry/Raven-js.

EDUCATION

Sumy State University | Bachelor in Computer Science 2016 - 2018

Polytechnic College KISumDU | Computer Engineering 2012 - 2016

LANGUAGES

English: Professional Working Proficiency | Ukrainian: Native | Russian: Native