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I'm Sebastian Rodriguez, a Senior Software Engineer with 7+ years of experience architecting backend, full-stack, and IoT ecosystems. I specialize in bridging cloud backends with IoT edge devices using MQTT and ESP8266, with strong expertise in Java and Kotlin (Spring Boot), PostgreSQL, and cross-platform mobile development with React Native. I'm currently based in Japan on a Working Holiday Visa, seeking a long-term engineering role with visa sponsorship. I enjoy building robust systems, mentoring engineers, and driving DevOps practices.…I'm Sebastian Rodriguez, a Senior Software Engineer with 7+ years of experience architecting backend, full-stack, and IoT ecosystems. I specialize in bridging cloud backends with IoT edge devices using MQTT and ESP8266, with strong expertise in Java and Kotlin (Spring Boot), PostgreSQL, and cross-platform mobile development with React Native. I'm currently based in Japan on a Working Holiday Visa, seeking a long-term engineering role with visa sponsorship. I enjoy building robust systems, mentoring engineers, and driving DevOps practices.

Sebastian Rodriguez

Back-End Developer, Full Stack Developer, DevOps Developer, +2

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I'm Sebastian Rodriguez, a Senior Software Engineer with 7+ years of experience architecting backend, full-stack, and IoT ecosystems. I specialize in bridging cloud backends with IoT edge devices using MQTT and ESP8266, with strong expertise in Java and Kotlin (Spring Boot), PostgreSQL, and cross-platform mobile development with React Native. I'm currently based in Japan on a Working Holiday Visa, seeking a long-term engineering role with visa sponsorship. I enjoy building robust systems, mentoring engineers, and driving DevOps practices.…I'm Sebastian Rodriguez, a Senior Software Engineer with 7+ years of experience architecting backend, full-stack, and IoT ecosystems. I specialize in bridging cloud backends with IoT edge devices using MQTT and ESP8266, with strong expertise in Java and Kotlin (Spring Boot), PostgreSQL, and cross-platform mobile development with React Native. I'm currently based in Japan on a Working Holiday Visa, seeking a long-term engineering role with visa sponsorship. I enjoy building robust systems, mentoring engineers, and driving DevOps practices.

Available to hire

I’m Sebastian Rodriguez, a Senior Software Engineer with 7+ years of experience architecting backend, full-stack, and IoT ecosystems. I specialize in bridging cloud backends with IoT edge devices using MQTT and ESP8266, with strong expertise in Java and Kotlin (Spring Boot), PostgreSQL, and cross-platform mobile development with React Native.

I’m currently based in Japan on a Working Holiday Visa, seeking a long-term engineering role with visa sponsorship. I enjoy building robust systems, mentoring engineers, and driving DevOps practices.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Language

Spanish; Castilian

Fluent

English

Advanced

Japanese

Beginner

Work Experience

Founder & Senior Software Engineer at Estonian Port

February 1, 2022 - Present

Technical Lead for a cross-functional team (2 developers, 1 designer), architecting and deploying scalable SaaS platforms and managing the full product life cycle from database design to production. Published mobile apps on Google Play and Apple App Store. Developed IoT systems using ESP 8266, MQTT, and cloud backends. Managed DevOps and self-hosted infrastructure with Docker and Ubuntu Server.

Software Engineer at CONICET

October 1, 2018 - March 1, 2022

Worked on large-scale government systems used by 40+ institutions. Developed electronics signatures system using Java, Spring Boot, REST APIs, and IoT. Implemented document repositories with Apache Jackrabbit. Refactored core logic, resolved production issues, and added unit tests (JUnit).

Seasonal Worker at Annupuri Garden

November 1, 2025 - Present

Seasonal worker under Work & Holiday Visa; focus on language (N4) and cultural integration.

Seasonal Worker at Okemo Mountain Resort

December 1, 2016 - April 1, 2017

Immersive program focused on English proficiency and multicultural teamwork.