Andrei Badea

Upday is a top-ranking news app. I was hired to be the technical lead for the ongoing development and launch of a new article crawler and importer backend, end to end from deployment infrastructure to design and architecture, development, operations and observability. Apart from day to day coding, I was responsible for designing solutions for incoming requirements and helping the team when they were blocked.

Picking up, developing new features for and maintaining an event-driven, microservice-based architecture covering supply chain management. Among my accomplishments were understanding and fixing long-term (years) technical pain points that were hindering the team's on-call duties, helping to decrease the weekly effort from 100% of an engineer's time to 30%. The contract ended due to company-wide budget restrictions. Main tools and technologies: Kotlin, Nakadi (Kafka), Kubernetes, PostgreSQL, OAuth2.

Liftago is a Czech startup providing ride hailing and logistics services. My main focus was a new billing solution, a large project that touched virtually every business area. I actively took part in the development and launch of the new billing, promoting and delivering a phased rollout that ensured no disruption was caused to either business or customers. Among my other accomplishments: in my first month at Liftago I introduced a company-wide Java library that promoted the use of feature flags while avoiding common pitfalls. In my third month I promoted and developed an improvement to the existing billing that brings the company ~75,000 CZK each month. Main tools and technologies: Kotlin, Spring Boot, MySQL, MongoDB, Kubernetes, AWS (EC2, RDS, S3), Datadog.