Marcin Nowicki Email & Phone Number

Warsaw, Pl

- Incorporated specialized tools seamlessly into the web application, facilitating batch data import, customized management of AWS S3 storage, and the launch of analytics processes.

- Collaborated with 12+ senior developers and product management team to develop the new version of best-selling trading application, finished application in just 8 months.- Developed a real-time data synchronization feature using React, Web Sockets and NodeJS, SignalR, FluentUI, ensuring seamless communication and instant updates for users across multiple devices in MS Outlook and Teams.- Implemented microservices architecture using NodeJS, PHP and Rabbit MQ, breaking down complex applications into smaller, manageable services, resulting in improved scalability and fault tolerance.- Developed an admin application using Vue, Nuxt3 and Pinia, allowing for 100% satisfaction in user’s experience.- Designed the application architecture on React with TypeScript, TailwindCSS, Redux and Hook.- Converted a traditional web application to a single-page application with React.js, Nextjs and configure as Progressive Web App applying Graph QL-based backend API- Developed secure user authentication and authorization systems using AWS Cognito and JWT tokens, ensuring data privacy and regulatory compliance.

- Designed and developed robust and scalable web applications like Ecommerce, ERP and HIS using PHP/Laravel.- Planned and implemented optimization strategies for web applications by identifying and resolving defects timely and effectively as well as adding new features or enhancements in windows forms and Laravel.- Created new and modified existing websites using JavaScript, HTML, and CSS, and implemented web applications, using modern technologies (React, Redux)- Participated in Agile sprints and contributed to team discussions on innovation and technology adoption.

- Converted Figma, XD Design, mock-ups provided by graphic designers to fully functional e-Commerce, Sport site, etc…- Supported senior developers in a variety of web projects, gaining hands-on experience across the full technology stack.