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Luís R.LR

Luís R.

Backend Engineer

€125/day
Guimarães, PT
3-7 years

Average response time: 1 hour

About Luís

Backend engineer with 3+ years of professional experience in enterprise integrations, backend services, and retail systems in production, plus a Computer Engineering degree with academic background in C#.

My core professional background is in PL/SQL, Oracle Retail, Java/Spring Boot and REST APIs - I design and maintain integrations between enterprise systems, including data transformation, API consumption (including Oracle Fusion), and careful work in production environments for large international retail clients.

I also have academic experience in C# (2 years during my degree), and I'm actively expanding my skills in Python and AI/LLM integrations through personal projects. I'm comfortable picking up new frameworks and technologies as needed.

I'm open to backend development, integration, and automation projects of any kind - from database work and API development to scripting and process automation.
  • Portuguese

    Native or bilingual

  • English

    Fluent

Remote only
Primarily works remotely

Experience

  • Retail Consult
    Software Engineer – Integrations & Backend
    May 2023 - Today (3 years and 3 months)
    • Designed and maintained backend integration services connecting Oracle Retail systems with external platforms, ensuring reliable data flows across on-premises and cloud environments.
    • Built and consumed REST APIs (including Oracle Fusion APIs) to automate data exchange between enterprise applications — handling authentication, error handling, and data transformation.
    • Developed Java Spring Boot microservices for scalable, decoupled backend architectures used in production by large international retail clients.
    • Wrote PL/SQL scripts for data transformation, validation, and ingestion across multiple source systems.
    • Used AI-assisted development tools throughout daily work to accelerate delivery while maintaining code quality and full understanding of the output.
    • Collaborated with cross-functional and distributed international teams, translating complex business requirements into working technical solutions.
    API REST PL/SQL Java Oracle Spring boot
  • Toogas – Adobe Magento Business Solutions Partner
    Web Developer Trainee
    October 2022 - May 2023 (7 months)
    • Developed e-commerce integrations using Adobe Magento, contributing to end-to-end delivery of an online store.
    • Gained hands-on experience in API-based integrations and data flow between front-end and back-end systems.

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Education

  • Bachelor's Degree
    Universidade de Trás-os-Montes e Alto Douro
    2022
    Bachelor's Degree

Skill set

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