Madiyar Kaskabayev

HelloFresh SE · Berlin, Germany

• Architected and delivered an event-driven backend for a C-level loyalty initiative spanning 4 domains.
• Led a mission-critical order summary pricing correction across multiple squads and tribes for a large-scale order flow.
• Improved API performance with in-memory caching, reducing latency by 80% and unblocking a major strategic initiative.
• Drove CI/CD and developer platform improvements, including Bazel and GitHub Actions/ArgoCD migration, accelerating delivery.
• Served as lead on-call engineer, resolving 50+ P1 incidents and mentoring engineers into rotation.

Kolesa Group · Almaty, Kazakhstan

• Re-architected typeahead search for a major classifieds platform, reducing latency from 100ms to 43ms and boosting conversion.
• Built virtual phone number functionality to improve user privacy and trust metrics.
• Improved CI/CD and refactored core components to reduce resource usage and improve team velocity.

Sports media platform · Almaty, Kazakhstan

• Built backend services, REST APIs, and admin tooling for a sports media platform with 200k+ monthly users.