Sergio Celemin
Sr Software Engineer at Mercado Libre
Bogota, Colombia
Summary
👤
Senior🎓
Top SchoolSergio Celemin is a senior software engineer with 8 years of experience building Java-based microservices and scalable, distributed systems for product teams across LATAM. He brings hands-on expertise in AWS services (DynamoDB, RDS, S3, Lambda, ECS), Jenkins CI/CD with Groovy, and has led practical DevOps improvements such as integrating Liquibase to streamline database deployments. Comfortable collaborating asynchronously with global teams, he has driven measurable delivery gains—reducing hotfix deployment time by ~37%—and guided cross-team migrations like OAuth1 to OAuth2. Equally curious about system reliability and high-performance backends, he’s actively learning Go, Kafka, and SRE tooling while contributing to front-end MVPs in React/React Native. A mentor at heart, Sergio pairs pragmatic engineering with clear documentation and stakeholder communication to improve developer experience across teams. Based in Bogotá, he’s passionate about green software, clean energy, and building products that scale.
8 years of coding experience
4 years of employment as a software developer
Ingeniería de Sistemas Computer Software Engineering, Ingeniería de Sistemas Computer Software Engineering at Universidad de IbaguéSENA: Servicio Nacional de Aprendizaje
English, Spanish
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (3)
githubactions6
runner5
deep-learning4
Programming languages (4)
Github contributions (5)
sercel98/IbizaApp
Apr 2020 - Oct 2020
Contributions:87 commits, 8 PRs, 40 pushes in 6 months
sercel98/react-cotizador-autos
Aug 2020 - Apr 2021
Una aplicación de react utilizando styled components
Contributions:1 PR, 1 push, 1 branch in 7 months
reactunastyled-systemcssstyled-components
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