Leandro Costantini
Senior Software Engineer at IKEA
Amsterdam, North Holland, Netherlands
Summary
👤
Senior🎓
Top SchoolLeandro Costantini is a Senior Software Engineer based in Amsterdam with 11 years of experience building scalable, high-throughput backend systems in Go, Ruby and Elixir. He has driven end-to-end ownership at scale—designing, shipping and operating services that process billions of events for global retail and telecom customers. At IKEA he improved stock-calculation pipelines to serve 40+ countries and 400 stores with low-latency accuracy, and at T-Mobile he helped stabilise nationwide VoIP services and implemented traffic-prioritisation under peak loads. He excels at cross-functional collaboration, translating product and business needs into pragmatic, observable solutions that reduce complexity and costs. Known for thoughtful refactors, event-driven design and a test-first mindset, he pairs technical depth with clear communication to both engineers and non-technical stakeholders. A self-directed learner, he continually adapts methodologies to meet operational SLAs and real-world constraints.
11 years of coding experience
8 years of employment as a software developer
Ingeniería en Sistemas de la Información, Ingeniería informática, Ingeniería en Sistemas de la Información, Ingeniería informática at Universidad Tecnológica Nacional
Spanish, English
Github Skills (26)
ohm10
hash10
redis9
ruby8
api5
packet5
rest-api4
elixir3
permanent3
scp3
dsl3
camp3
mqtt3
erlang2
ssh2
Programming languages (2)
Github contributions (5)
lcostantini/dotfiles
Nov 2014 - Apr 2020
Contributions:54 commits, 2 PRs, 47 pushes in 5 years 5 months
personalize
lcostantini/haycancha
Aug 2014 - Sep 2014
Contributions:80 commits in 1 month
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