My name is Andrzej, and I am a seasoned backend developer with over eight years of professional experience in the software development industry. I began my career as a full-stack developerspecializing in PHP, which provided me with a solid foundation in building comprehensive web applications. Over time, I transitioned to focusing on backend development using JavaScript and TypeScript, sharpening my skills in creating efficient and scalable server-side solutions. Additionally, I have extensive experience working with blockchain technologies, including designing and implementing smart contracts for Ethereum and other EVM-compatible chains.
I'm excited to tackle new opportunities that will help me develop and evolve in my career and life.
While working at 4soft, I was responsible for estimating and developing smart contract projects for various blockchain platforms, as well as overseeing backend project estimations and implementations using JavaScript and TypeScript. Additionally, I contributed to the creation of a proof-of-concept mobile application using Xamarin, demonstrating my ability to adapt to diverse technologies and deliver comprehensive solutions.
Paribus is a decentralized lending and borrowing platform that offers features such as staking, using NFTs as collateral, liquidations, rewards, and a governance portal. Over a three-year collaboration with the client, I played a key role in developing backend systems, integrating third-party services, creating the native token contract, and providing technical support.
Champ Association is a platform that connects decentralized digital assets with physical products like custom “Blockchain-branded” champagne bottles. It allows users to participate in various ways, such as providing liquidity, buying products, or engaging in metaverse-based games.
Ivykoin was an ICO platform for the IVY cryptocurrency, designed to enhance cryptocurrency usability by providing KYT and KYC information during transactions. As a backend developer, I was responsible for building and maintaining the platform.
OK Thank You (OkTY) aimed to revolutionize how brands gather and use data while allowing users to profit from it. The app enabled users to share personal data, such as location and spending habits, while maintaining control over what data was shared. In exchange users could gain access to exclusive promotions or discounts from said brands or earn a profit of their revenue.
Engineered a proof of concept mobile application for Wiko utilizing Xamarin to achieve seamless cross-platform compatibility across iOS and Android devices. Implemented advanced planning functionalities, alongside comprehensive PDF annotation features enabling users to mark up, highlight, and organize documents efficiently.
In my role as a Full-stack developer at SoftWizard, I focused on developing aggregator of many e-commerce stores, startup called Vendoria.
In my role as a Full-stack developer at Malvion, I was responsible for creating CMS for Bank Jarocin and CMS for listing offers for MebelArt