
MAGDA SCROBOTĂ
Senior Blockchain Developer | CosmWasm
Salary / Daily rate
Kraków, Poland
Freelance, open to permanent contract
Skills
Languages
About me
Intro
Senior Blockchain Developer with 8+ years specializing in smart contracts, DeFi, and full-stack development. Built secure CosmWasm contracts, reduced infrastructure setup by 50%, and increased user engagement by 35% on DeFi platforms. Expert in Cosmos-SDK, Ethereum, React, and AWS - delivering scalable blockchain solutions from concept to deployment.
Work experience
Senior Blockchain Developer and Devops
Digixvalley
Aug 2022 - Jul 2025
3 years
California, MD, USA
• Developed and deployed secure smart contracts in CosmWasm on the Osmosis blockchain, enabling on-chain staking and token swap functionality. • Spearheaded the forking and customization of Cosmos-SDK and Big Dipper UI to build MunChain, a feature-rich interoperable blockchain explorer. • Automated full-node and seed-node deployment using Terraform and AWS EC2, cutting infrastructure setup time by 50%. • Mentored 3 junior developers in Cosmos-SDK, CosmWasm, and DevOps pipelines, resulting in a 25% increase in team development velocity. • Led integration of blockchain infrastructure into legacy enterprise systems by coordinating with cross-functional teams (DevOps, Product, Frontend). • Conducted code reviews and enforced blockchain security standards, reducing critical bugs by over 40% in production smart contracts. • Designed and deployed multiple token standards including ERC20, CW20, SPL Token, CW721, and ERC721, supporting DeFi and NFT marketplace integration.
Full Stack and Blockchain Developer
Bright
Jun 2021 - Jul 2022
1 year 2 months
Lviv, Lviv Oblast, Ukraine, 79000
• Researched and implemented cutting-edge blockchain technologies to support EVM-based DeFi and NFT ecosystems. • Developed fully responsive UIs for DeFi platforms, DEXs, and NFT marketplaces using the MERN stack, increasing user engagement by 35%. • Integrated Ethereum smart contracts into React frontend using Web3.js, enabling seamless wallet connectivity and DApp interactivity. • Built and deployed NFT minting and marketplace platforms with smart contracts, supported by robust unit testing via Hardhat, Truffle, and Solidity Coverage. • Architected scalable frontend solutions using TypeScript, React, and Redux, reducing code complexity and improving developer onboarding. • Designed cloud-agnostic components with built-in switching logic for Azure and Google Cloud APIs, increasing platform flexibility for enterprise clients. • Developed Shopify-style storefronts using React, Tailwind CSS, MUI, and Ant Design based on custom client feedback. • Built RESTful API integrations between Node.js backends and frontend components, optimizing performance and reducing average response times by 20%.
Full-stack Developer
Crunch
Mar 2016 - May 2021
5 years 3 months
Kyiv, Ukraine, 02000
• Collaborated with engineering and product teams to scope requirements and plan releases, achieving 95% on-time sprint delivery. • Built a fully responsive portfolio website using React and SEO optimization strategies, increasing client conversion rates by 58%. • Developed and deployed custom ERC20 and BEP20 smart contracts tailored for crypto startups, accelerating token launch timelines. • Created a server performance monitoring dashboard using Node.js, Express, and MongoDB, reducing mean time to recovery by 40%. • Redesigned multiple eCommerce platforms using Next.js, boosting Google SEO performance scores by 25%. • Facilitated agile development cycles using JIRA for sprint planning, issue tracking, and QA coordination.
Education
Lviv Polytechnic National University
Bachelor's degree
2012 - 2016
4 years 3 months