Mark Kaharo

Developed a large-scale application processing over 5 million daily requests, powering smart parcel lockers across the Netherlands, Finland and Germany, supporting parcel delivery operations for thousands of customers daily.

Deployed our NodeJS-powered applications on Google Cloud Platform, improving service availability across European regions, while achieving 99.9% uptime.

Conducted performance optimisations, reducing Cloud Run latency by 30% and improving user experience across multiple applications.

Automated infrastructure management using Terraform cuts deployment time from hours to minutes.

Partnered with engineers in Germany and Finland, delivering critical features that improved platform stability and kept release cycles on track.

Designed and implemented a microservices architecture enabling the system to handle 3x growth without performance degradation.

Spearheaded security enhancements, closing high-risk vulnerabilities and improving compliance with EU data protection standards.