Marcos Sánchez
Senior Site Reliability Engineer at GitHub
Greater Madrid Metropolitan Area Spain
Summary
👤
Senior🎓
Top SchoolMarcos Sánchez is a Senior Site Reliability Engineer with a decade of experience building scalable, cloud-native systems and observability platforms for large enterprises, currently ensuring GitHub runs reliably at web scale. He combines deep big-data and SRE expertise—implementing Elastic/Prometheus stacks, SLO-driven operations, chaos testing and self-healing patterns—with hands-on coding in Go, Python and Java. Marcos has taught and facilitated enterprise DevOps and cloud programs (including MIT Professional Education), reflecting a talent for translating complex distributed systems concepts into practical operational practices. His background in big-data QA and security-informed testing uniquely informs his reliability work, where production anomaly detection and impact correlation are first-class concerns. Based in Greater Madrid, he blends rigorous technical craft with a learning mindset—summed up by his GitHub motto about knowing the extent of one’s ignorance.
10 years of coding experience
10 years of employment as a software developer
Universidad Complutense de MadridBachelor of Science - BS Physics, Bachelor of Science - BS Physics at UNIR - Universidad Internacional de La Rioja
Spanish, English
Github Skills (120)
python10
exporter10
ecosystem10
r10
big-data10
verify10
scale10
sql10
golang10
container10
spark10
analytics10
large-scale10
java10
scala10
Programming languages (11)
Github contributions (5)
marcosdotps/tallio
Mar 2022 - Mar 2023
a simple tally counter
Contributions:1 review, 19 commits, 3 PRs in 1 year
tally-counterjavascriptcountertally
mpenate/CI_PoC
Feb 2017 - Oct 2018
Contributions:39 pushes, 1 branch in 1 year 7 months
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