Giancarlo Jung
Backend Developer at SumUp
São Paulo, Brazil
Summary
👤
Senior🎓
Top SchoolGiancarlo Jung is a backend developer based in São Paulo with 13 years of hands-on experience building and leading web and backend systems across startups and agencies. Currently at SumUp since 2020, he focuses on scalable payment-related backends while bringing prior leadership experience delivering payroll tech at Runa and full-stack/platform solutions for clients across LATAM. He combines strong backend tooling (Ruby on Rails, Node, PHP/Laravel) and database experience (Postgres, MySQL) with practical cloud and DevOps know-how from AWS and other environments. His background in agency and product work means he blends technical delivery with client-facing planning, estimations, and team coaching. Notably, he moved from creative digital production into technical leadership, giving him an unusual mix of design sensibility and engineering rigor. Fluent in Portuguese and experienced across the full development lifecycle, he’s driven to turn complex requirements into reliable, user-focused systems.
13 years of coding experience
7 years of employment as a software developer
Fédération Internationale de l'Art PhotographiqueSuperior, Design de Produto, Incompleto, Superior, Design de Produto, Incompleto at Federal University of Rio Grande do Sul
English, Spanish
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (14)
low-level4
kotlin4
data-visualization3
resume3
react3
analytics3
http-client2
freelance2
typescript2
golang2
graphql2
git2
firebase1
firestore1
Programming languages (5)
Github contributions (5)
GiancarloJung/poemanocopo
Sep 2012 - Apr 2013
Contributions:28 commits in 6 months
sumup/graphql
Oct 2021 - Jun 2022
Simple low-level GraphQL HTTP client for Go
Contributions:3 releases, 10 reviews, 12 commits in 8 months
golanghttp-clientlow-levelgraphql
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