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Work experience

Senior Frontend Engineer

from 02.2025 to now (1 year 6 months)
SSG Systems, Дистанційно (IT)

• Defined frontend architecture and development standards across multiple products, ensuring consistent and scalable delivery
• Built a secure communication platform supporting encrypted messaging and file transfer, with AES-256 encryption and decryption handled entirely on the client side
• Implemented payment flows: fiat on-ramp and Web3 transactions with multi-chain support
• Architected Web3 logic layer, reducing code duplication and simplifying feature maintenance
• Implemented authentication and access control (JWT, multi-provider auth)
• Contributed to backend development (API routes, WebSockets, file upload pipelines) and smart contract integrations

Senior Frontend / Product Engineer

from 01.2024 to 01.2025 (1 year)
World Mobile Group Ltd, Дистанційно (IT)

• Built and launched an ERC-20 token bridge product from scratch, covering interaction logic, user flows, and core functionality
• Enabled token transfers with lower fees and faster confirmation through correct L1–L2 interaction implementation
• Implemented real-time cross-chain transaction status tracking, including state handling across L1/L2
• Simplified the token transfer flow for end users: from wallet connection to transaction confirmation
• Built a testnet tooling solution, accelerating QA and developer onboarding processes
• Led direct client communication, aligning requirements and contributing to product decisions
• Prepared technical documentation for developers and ecosystem partners

Senior Frontend / Web3 Developer (Contract, Part-time)

from 03.2023 to 12.2023 (10 months)
Blockchain Project, Дистанційно (IT)

• Led development of two separate products from scratch for Solana and EVM chains, covering staking and vesting functionality
• Defined interface architecture and blockchain interaction logic
• Built clear user flows for staking, vesting creation, and reward claiming
• Improved transaction-related user flows, making blockchain interactions more transparent and predictable for users
• Reduced user drop-off at critical transaction steps (staking, vesting creation, claiming) by an estimated 15–25% by simplifying interaction logic and making the process more predictable

Frontend Engineer

from 01.2020 to 01.2024 (4 years)
Velas Network AG, Київ (IT)

• Built core frontend products for the Velas ecosystem from scratch, including wallets and payment integrations (fiat on-ramp), for an ecosystem with 300k+ community members and 70k+ active users
• Contributed to shipping a cross-platform wallet from a single shared codebase for iOS, Android, and Web using React Native Web — reaching 30k+ mobile installs
• Built a blockchain explorer interface within the ecosystem, improving data accessibility and user navigation
• Developed and maintained a staking module as a standalone npm package, adopted by external teams for protocol integrations
• Worked within a team of ~10 frontend developers alongside backend engineers, QA, and product, consistently shipping features to production

Frontend Developer

from 07.2018 to 01.2020 (1 year 7 months)
COIN PAY Ltd, Київ (IT)

• Built a full-featured crypto mobile application from scratch, covering account management, transactions, and exchange flows
• Owned the full release to App Store and Google Play and maintained the app post-launch
• Integrated frontend with backend APIs, ensuring stable performance across core user scenarios
• Contributed to the web platform and admin panel for crypto exchange functionality
• Introduced frontend standards and code organization practices, raising quality and consistency across the team

Education

National Transport University

Master’s Degree in Engineering, Київ
Higher, from 2006 to 2011 (5 years)

Additional education and certificates

Flutter Mobile Developer

2026, 6 місяців
Certificate

Knowledge and skills

• React
• Next.js
• TypeScript
• JavaScript
• React Native
• Flutter
• Redux
• Redux-Saga
• MobX
• Tailwind CSS
• CSS
• Webpack
• Node.js
• Express.js
• PostgreSQL
• MongoDB
• Firebase
• REST API
• WebSocket
• Socket.IO
• Ethers.js
• Solidity
• JSON Web Token
• Google Analytics
• Google Search Console
• GitHub
• GitHub Actions
• Docker
• AWS
• Google Cloud Platform
• DigitalOcean
• Sentry
• Vercel
• OpenAI
• Claude
• Copilot
• Cursor

Language proficiencies

• English — average
• Ukrainian — fluent

Additional information

Frontend Engineer with 8 years of experience building complex products across payments, Web3, and user-facing platforms. Contributed to launching 12+ products into production.

Strong at building complex products from scratch - from idea to working production solutions - with a focus on architecture, user experience, and real business needs, while actively using AI tools and agent-based workflows in the development process.

Core stack: React, Next.js, TypeScript, React Native, Node.js, Web3.

I also regularly use Anthropic and OpenAI LLMs in my work, and have practical experience with Make and n8n for automation workflows.

AI has already become part of my daily workflow. I’m continuing to grow in AI-first development and in the practical use of AI and agents in product environments.

KEY HIGHLIGHTS

• Built and launched 12+ products, including Web3 platforms, wallets, and payment solutions
• Contributed to 10+ startup and MVP initiatives, from early product concepts to production delivery
• Built secure messaging and file transfer with encryption and decryption handled client-side
• Launched and integrated payment flows: fiat on-ramp / off-ramp and on-chain transactions
• Designed frontend architecture for Web3 applications, simplifying complex business logic and accelerating development
• Built cross-platform applications (Web, iOS, Android) from a single shared codebase
• Worked on products used by ecosystems with hundreds of thousands of users