shapkarin
Staff Level Full Stack Engineer
I’m a Staff-Level Full-Stack Engineer with 10+ years in production development across ML/AI, biotech, fintech, edtech, Web3 and distributed systems. I build end-to-end solutions from architecture and implementation to performance, security and CI/CD. I was working also on telecom and DRM video-straming, ML projects in marketing and previously in biotech. I prioritize system integrity and software supply chain security, actively employing tools like Docker, LavaMoat, StepSecurity and Socket.dev, plus pnpm security features. Those tools help to harden CI/CD pipelines and local development. I know Go lang, Node.js (NestJs, Prisma, Express, Koa), Redis and React (Next.js, react-router, redux, zustand and jotai). I used MQ: BullMQ and RabbitMQ. Wonder to try Kafka in production. Alongside hands-on engineering, I bring technical leadership, mentoring teams on secure development practices for the blockchain and fintech sectors.
Key Achievements
1. Architect, integration, and profiling of the MCP server that any agent can understand and AI-chat under the hood using SSE and custom (safe!) router for LLM providers.
2. Led end-to-end development of a multi-chain non-custodial launchpad (EVM + Solana), implementing deterministic token issuance flows.
3. I won this Meteora tiny bounty https://x.com/meteoraag/status/2029467320775766297 (and several other bounties)
4. Architected a unified wallet abstraction layer across MetaMask, WalletConnect, Phantom, and Solflare, ensuring seamless cross-language interactions and cross-ecosystem signing flows.
5. Designed and implemented robust CI/CD pipelines achieving a 4x delivery improvement while maintaining strict security gates for wallet-related deployments. GithubAction, Docker, AWS (mostly EC2, RDS and S3 with CDN), CDK and Oracle with Terraform.
6. Built a non-custodial browser extension and web wallet for the BitSong blockchain from scratch, featuring secure key handling and mnemonic generation.
7. Integrated advanced supply-chain protection (LavaMoat, pnpm permission controls) to harden build pipelines against dependency attacks, critical for financial software. Used also StepSecurity and Socket.dev GitHub Actions and APIs for the analysis and warnings to prevent various attacks.
8. Led multiple projects and teams simultaneously, handling both technical side and team management.
9. Added DRM for video streaming, UI and integrated partners API.
10. Delivered meaningful improvements to products and workflow.
Experience: 11 years
Yearly salary: $106,000
Hourly rate: $65
Nationality: 🇰🇿 Kazakhstan
Residency: 🇩🇪 Germany