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Sergio Medina

Sergio Medina

Backend Developer

Buenos Aires, CABA, AR
Spanish, English

Background


About

About

Backend developer with 7+ years of experience building distributed systems. Skilled in Golang, Java, Python and frameworks like Spring Boot, Django, and Echo. Known for translating complex technical ideas into accessible concepts for multidisciplinary teams.

Work Experience

Work Experience

  • Backend Developer, Arionkoder

    Sep, 2023 - Present

    Event-driven microservices development and internal Spring Boot libraries.

    • Created features following event-driven architecture.

    • Improved API performance via query optimizations.

    • Maintained Spring Boot libraries for internal use.

    • Developed Backend For Frontend modules for mobile applications.

  • Backend Developer, Rappi

    Jul, 2022 - Sep, 20231 year 2 months

    Worked on monolithic backoffice and internal Golang libraries.

    • Maintained Golang libraries.

    • Split Monolithic Backoffice using Domain Driven Design.

    • Solved performance issues by identifying slow queries and endpoints.

  • Backend Developer, Platzi

    May, 2021 - Jun, 20221 year 1 month

    Built B2B features and scalable backend services.

    • Modular Monolith approach for new features.

    • Implemented massive account creation flows.

    • Integrated SSO with Azure, Google, Facebook, and Twitter.

    • Generated near real-time reports with Kafka and GraphQL.

    • Built MVP gift redemption flow that launched as a product.

  • Backend Developer, Rappi

    Jul, 2019 - Apr, 20211 year 9 months

    Contributed to microservices migration and data pipelines.

    • Migrated monolith to microservices with Golang/Echo and Java/Spring Boot.

    • Maintained internal Spring Boot libraries.

    • Improved performance through query optimizations and caching.

    • Built data pipelines using Redis and MongoDB.

    • Handled data migration across PostgreSQL and MongoDB.

Skills

Skills

  • Languages & Frameworks

    Golang

    Java

    Python

    Spring Boot

    Echo

    Django

  • Databases

    PostgreSQL

    MongoDB

    Redis

  • Architecture

    Microservices

    Event-Driven

    Modular Monolith

    Domain Driven Design

  • Other Tools

    Kafka

    GraphQL

    SSO

    CI/CD