Marcos Mayo
Tech Lead at PayPay Corporation
Greater Tokyo Area Japan
Summary
👤
Senior🎓
Top SchoolMarcos Mayo is a Tech Lead with 11 years of experience designing and delivering high-throughput, fault-tolerant backend systems across payments and e-commerce. He has led architecture and implementation of P2P payments at PayPay and built a multi-AZ distributed checkout system at Rakuten that operated at peaks of 250K QPS, improving latency by 70% and cutting infrastructure costs by 40%. Skilled in Java/Kotlin, SpringBoot, Reactor, Kafka, gRPC and cloud-native databases, he focuses on correctness, idempotency, and race-condition safeguards for transaction-heavy domains. He also drives security and testing best practices as a team mentor and security champion, and brings performance engineering rigor through benchmarking and profiling. Trained with a Master’s in Computer Science from Universidad de Zaragoza, Marcos blends deep systems-level research experience (heterogeneous CPU/GPU/FPGA work) with pragmatic, production-first delivery in the Greater Tokyo Area. An organizer-turned-engineer, he combines operational discipline with the startup mindset needed to ship resilient, scalable services.
11 years of coding experience
10 years of employment as a software developer
Master's degree, Computer Science, Master's degree, Computer Science at Universidad de Zaragoza
Spanish, English
Stackoverflow
390reputation
203kreached
1answer
0questions
Github Skills (189)
redistimeseries10
batching10
messaging10
redis-sentinel10
redis-streams10
pika10
mapreduce10
haiku10
publish10
serverless10
ack10
commons10
redis-client10
micronaut10
bloom-filter10
Programming languages (9)
Github contributions (5)
mcanalesmayo/NASA-SpaceApps2016-TimeFlies
Apr 2016 - Dec 2018
Contributions:38 commits, 4 PRs, 33 pushes in 2 years 8 months
mcanalesmayo/LanguageModel-NGram
Nov 2016 - Dec 2018
Contributions:8 commits, 7 pushes, 1 branch in 2 years 1 month
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