I'm Patryk Rosenkiewicz.

Describe your experience at school, what you learned, what useful skills you have acquired etc.

Backend developer in greenfield project which is responsble for comparing banking products. Main technologies: TypeORM, Express.js, TypeScript and PostgreSQL.

Data warehouse hosted on AWS cloud. I was responsible for adjusting the process of authentication by omitting a proxy module responsible for integrating with the self-hosted IAM service, keycloak. I also did minor improvements and optimizations of data imports within step-functions workflows. Main technologies: TypeScript, AWS Step functions, S3, PostgreSQL and Keycloak.

Legacy CRM application which main features was to create contracts and then generate invoices. I was responsible for refactoring the code and adding new features. Application had plenty of integrations with external services. And application used self-hosted IAM service, FusionAuth for authorization and authentication. Main technologies: Node.js, Express.js, TypeScript, PostgreSQL, FusionAuth, React and Next.js.

Responsible for developing and maintaining stack of applications related to call centers. Main features of applications was to manage call center, create new agents, queues setting priorites etc. And calculate statistics of call centers like eg. call durations, call hangout reason, response time etc. Main technologies: Perl, PHP, JavaScript, JQuery, Bash and PostgreSQL.