Paweł Mróz

I’m a Full Stack Engineer with 5 years of experience building and scaling production-ready SaaS applications. I combine hands-on development with technical leadership, mentoring, and close product collaboration to deliver measurable outcomes.

I’ve modernized legacy monoliths by migrating toward DDD and CQRS architecture patterns, improving maintainability while keeping systems stable. I’ve also built and maintained RESTful APIs that power frontend modules and third-party integrations.

In production, I focus heavily on reliability and performance. I reduced critical incidents (L1/L2) from multiple per day to about one every 3 weeks by improving backend stability and resolving N+1 query issues, and I cut page response times from seconds to milliseconds.

I’m comfortable leading engineering delivery as well as implementing features—coordinating a sub-team of 3 developers, running code reviews, and mentoring junior engineers. I’ve also migrated frontend applications from Vue 2 to Vue 3 (Composition API) while maintaining production stability in an Agile environment.