bartosz0718

Full Stack Engineer

I'm a Senior Software Engineer with 8+ years of experience specializing in scalable and high-performance applications across blockchain and web development. I recently led the development of a cross-chain launchpad for $LUCKY meme coin and $TMAI tokens, successfully raising $246,000 through a public token sale. My work included integrating third-party KYC verification, implementing staking & governance systems, and optimizing wallet connectivity, and on-chain swap with Privy Wallet & Li.Fi SDK. Additionally, I engineered backend logic for interactive games, achieving a 900% increase in user engagement.

I have a strong background in JavaScript, Node.js, React/Next.js, Prisma, and Supabase, with hands-on experience in smart contract integration, scalable API design, and database optimization. I am seeking an opportunity to lead innovative projects in blockchain or web development, leveraging my technical expertise to build impactful, high-performance solutions while collaborating with dynamic teams.



Experience: 8 years

Yearly salary: $72,000

Hourly rate: $50

Nationality: 🇰🇿 Kazakhstan

Residency: 🇵🇱 Poland


Experience

Senior Full Stack Engineer
Token Metrics - AstraDAO
2024 - 2025
Cross-Chain Launchpad & Token Development: Led the development of a cross-chain launchpad, launching $LUCKY and $TMAI tokens, raising $246,000 through a public token sale. Backend Logic & Randomization: Built Lucky Spin's backend using Node.js & AWS Step Functions, ensuring secure randomization and driving a 900% engagement boost. Smart Contract Integration: Enhanced Web3 connectivity with Redux-based architecture and Wagmi-module integration for secure smart contract interactions. Scalable APIs & Security: Developed scalable Node.js APIs, integrating Purefi KYC to ensure regulatory compliance and platform security. Wallet & Swap Integration: Integrated Privy Wallet (SDK) and Li.Fi SDK, enabling seamless on-chain swaps and AI-driven trading automation. Staking & Governance: Designed staking & governance systems, allowing $TMAI token staking for veTMAI rewards with higher voting power and exclusive privileges to incentivize community participation. DevOps & CI/CD: Optimized CI/CD pipelines with GitHub Actions, accelerating development & deployments. Database Optimization: Implemented Snowflake, Supabase, and Prisma to efficiently manage both blockchain data and all necessary platform data, ensuring faster cross-chain synchronization and improved overall data reliability.
Full Stack Developer
Decent Reviews
2022 - 2024
Crafted a user review API and automated review aggregation engine using Node.js, TypeScript, and Express.js, improving data collection efficiency by 50% for the customer support team. Established a badge generation engine, resulting in a 25% increase in user-generated content shared across social media, improving brand visibility and engagement. Integrated smart contract with Web3.js, reducing manual intervention by 60% and increasing overall operational efficiency. Implemented CI/CD pipelines via GitHub Actions, resulting in a 60% reduction in deployment errors and greater software reliability. Generated detailed API documentation with Swagger and conducted thorough API testing using Cypress and Jest, boosting developer onboarding by 40% and increasing system uptime by 15%. Enhanced server performance using Docker, reducing average database query times to under 200 milliseconds, thereby improving user experience and application responsiveness.
Full Stack Developer
KURONURI
2021 - 2022
Spearheaded the creation of a comprehensive DeFi ecosystem, token generation and ICO platforms, 5 play-to-earn games, 2 NFT marketplaces, and over 20 Web3 projects. Developed an auto DEX bot for Burn&Drop that executed trades in under 2 seconds, increasing transaction efficiency by 40% and enhancing user engagement across the platform for over 1,000 active users. Designed a series of robust token bridges that facilitated seamless asset transfers across five different blockchain networks, enhancing transaction efficiency and improving cross-chain communication by 40% within the first quarter of implementation. Automated the integration process between React.js front-end and smart contracts using Web3.js and Ethers.js; streamlined deployment time by 60%, allowing quicker updates and feature rollouts for end-users. Built a robust internal back-end system by synchronizing with a blockchain database using Node.js and Express.js; improved data retrieval speed by 40% while enhancing security measures across the platform. Reconstructed existing API endpoints to utilize GraphQL, providing a more flexible data querying mechanism; this effort yielded a 50% reduction in code complexity, improving maintainability across the development team. Managed CI/CD processes for the development team, utilizing CircleCI, Bitbucket, GitHub, and AWS Lambda functions; achieved a 40% reduction in deployment time and improved overall software quality.

Skills

blockchain
javascript
nextjs
node
react
smart-contract
typescript
vue
web3js
full-stack
english