shapkarin

I’m a Full-Stack Engineer with 14 years in production development across various sectors and distributed systems. Blockchain engineer since 2017 (8 years). I build end-to-end solutions from architecture and implementation to performance, security, CI/CD and Cloud. I prioritize system integrity and software supply chain security, actively employing battle-tested security tools.

Deep knowledge and experience in both AI and Web3, from core to ecosystem. Web2 included as well. 
A proven track record across all mentioned areas.

Bounties & Contributions

• Latest GitHub contributions to the MCP Debugging tool by Agentic AI Foundation and an agentic wallet
  https://www.linkedin.com/feed/update/urn:li:activity:7467174175749693440/

• Contributions to major open-source repositories, including the MCP (Model Context Protocol) ecosystem, agentic payments, Google web.dev, and Mozilla MDN engine repositories
  https://shapkarin.me/articles/contributions-to-major-web-dev-repos

• Meteora Bounty Winner
  https://x.com/meteoraag/status/2029467320775766297 (and several other bounties)

• More contributions
  https://github.com/shapkarin](https://github.com/shapkarin

Key Achievements

• Architected, integrated, and profiled an MCP server and AI chat system.
• Led end-to-end development of a multi-chain non-custodial launchpad for EVM and Solana, implementing deterministic token issuance flows.
• Won a Meteora bounty and several other bounties.
• Built a non-custodial browser extension and web wallet for the BitSong blockchain from scratch, including secure key handling and mnemonic generation.
• Architected a unified wallet abstraction layer across MetaMask, WalletConnect, Keplr, Phantom, and Solflare, enabling seamless cross-language interactions and cross-ecosystem signing flows.
• Designed and implemented robust CI/CD pipelines, achieving a 4x delivery improvement while maintaining strict security gates for wallet-related deployments.
• Worked with GitHub Actions, Docker, AWS, CDK, Oracle, and Terraform, including AWS services such as EC2, RDS, S3, and CDN integrations.
• Integrated advanced supply-chain protection using LavaMoat and pnpm permission controls to harden build pipelines against dependency attacks in financial software.
• Used StepSecurity and Socket.dev GitHub Actions and APIs for dependency analysis, warnings, and attack prevention.
• Led multiple projects and teams simultaneously, handling both technical delivery and team management.
• Added DRM support for video streaming, UI functionality, and partner API integrations.
• Delivered meaningful improvements to products and engineering workflows.