Przemyslaw Michal Mazur

• Collaborated on development and implementation of high-performance web services to facilitate smooth communication between different components of the application.
• Ensured proper documentation of codebase, making it easier for other developers to understand and maintain the system.
• Deployed cloud infrastructure and distributed systems on AWS.
• Collaborated with frontend developers to design and implement seamless APIs, improving overall product functionality.
• Integrated third-party APIs into existing systems to extend product capabilities without reinventing the wheel.
• Collaborated with other backend engineers on database modeling and performance

Waracle ltd - Sainsbury's bank project

• Worked with DynamoDB for database management.
• Wrote comprehensive unit tests using JEST.
• Assisted in deploying applications to production environment.
• debugged applications in live production.
• Worked on spikes and explored new concepts for development.
• Monitored applications using AWS tools.
• Mentored junior developers to foster their growth and development

Kumulos legacy app migration

• Successfully migrated legacy Kumulos (function as a service) app.
• Rewrote Kumulos KScript ORM with Sequelize for MySQL queries.
• Ported legacy Kumulos KScript endpoints to Node.js/TypeScript.
• Set up Azure Continuous Integration and Continuous Deployment (CICD) pipelines.
• Conducted database migration tasks

• Developed the frontend of applications using React JS.
• Implemented the backend functionality using Node.js and MongoDB.
• Integrated third-party services such as Stripe and theSMSWorks.
• Deployed applications to Virtual Private Servers hosted on a2hosting.
• Assessed coding requirements for site creation, including e-commerce features, security measures, and specialised scripts.
• Designed user interfaces that met client specifications and seamlessly integrated them into content management systems.

• Provided personal transportation service