Mike Matsumoto
Senior Software Engineer at Zalando SE
Berlin Metropolitan Area Germany
Summary
👤
Senior🎓
Top SchoolMike Matsumoto is a Senior Software Engineer based in the Berlin area with 8 years of focused experience leading cross-team initiatives and architecting resilient, high-scale systems. He has driven complex migrations and operational improvements—most notably leading a zero-downtime migration of 1.2 billion shopping carts from Cassandra to DynamoDB and cutting operational effort by 90% ahead of Black Friday. Comfortable from design to production, he has architected department-wide solutions, built extensible fee and gamification engines, and split large monoliths into modular services. A committed mentor and interviewer, he has coached and onboarded engineers while promoting clean code, DDD, and event-driven practices through talks and workshops. Uncommonly, he combines hands-on coding with 24x7 operational ownership, making him effective in high-stakes, time-sensitive delivery.
8 years of coding experience
13 years of employment as a software developer
Bachelor's degree, Computer Science, Bachelor's degree, Computer Science at Unitri - Centro Universitário do Triângulo
Github Skills (17)
amazon8
sdk6
aws6
aws-sdk6
java6
kotlin-library5
kotlin5
kotlin-language4
json4
serialization4
deserialization3
jackson3
linux1
docker1
alpine-linux1
Programming languages (3)
Github contributions (5)
mmatsumoto/axon-demo
Jun 2018 - Sep 2018
Axonframework Demo
Contributions:40 commits, 6 PRs, 36 pushes in 3 months
axonframework
mmatsumoto/camunda
Aug 2018 - Nov 2021
Contributions:6 commits, 4 pushes in 3 years 4 months
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