Lead - Tradebyte at Tradebyte Software GmbH

Led two teams to develop a fault-tolerant, event-driven data pipeline distributing 57M+ data points to 20+ e-commerce channels. Collaborated with multiple teams to achieve ISO compliance for 30+ tech assets within 6 months. Designed & deployed AWS infrastructure for 30 microservices and 150 pods in EKS. Built a data layer to calculate computing cost of queries and generate optimized SQL for PostgreSQL clusters; routed requests to Redis/DynamoDB, fixed RDS vacuum leak and minimized CPU usage by 50%. Designed a queue management system integrating Kafka/SQS and MySQL Binlog; halved the number of running consumers from 30 to 15 and reduced per-process execution time from 2 minutes to under 1 second. Introduced minimalist microservice architecture, SDS, and TDD, enabling rapid deployment of 8+ services. Improved SLA uptime to 99% via load distribution and DB cluster caching for 300+ queries. Mentored 5+ engineers to build centralized tools for intra-service logging aggregation, analysis and

Lead at Tradebyte Software GmbH

Led two teams to develop a fault-tolerant, event-driven data pipeline distributing 57M+ data points to 20+ e-commerce channels; collaborated with multiple teams to achieve ISO compliance for 30+ tech assets; designed and deployed AWS infrastructure for 30 microservices and 150 pods in EKS; built a data layer to calculate computing cost of queries and generate optimized SQL for PostgreSQL clusters or routing requests to Redis/DynamoDB, fixing RDS vacuum leak and minimize CPU use by 50%; designed a queue management system integrating Kafka/SQS and MySQL binlog, halving the number of running consumers from 30 to 15 and reducing per-process execution time from 2 minutes to under 1 second; introduced minimalist microservice architecture, SDS, and TDD, enabling rapid deployment of 8+ services; improved SLA uptime to 99% via load distribution and DB cluster cache for 300+ queries; mentored 5+ engineers to build centralized tools for intra-service log aggregation, analysis and alerts, improvin

Contract Technical Consultant at Certa.ai

Led the team effort for transition of Django/MySQL monolith to new microservice-based serverless structure; created new PostgreSQL schema and migrated 40 GB from MySQL to PostgreSQL using custom ETL and row replication.

Senior Backend Engineer at HelloFresh

Developed three Golang/PostgreSQL microservices to determine meal pricing and customer churn reduction; developed an A/B testing tool to optimize marketing campaigns, successfully released 4 new meal kit products; developed a Docker-based testing tool, adopted by 3 teams for pre-PR local machine testing.