Summary
Overview
Work History
Education
Skills
Timeline
Generic
Roger Fiallos Sanchez

Roger Fiallos Sanchez

Backend Developer
Olesa de Bonesvalls

Summary

Back-end developer with deep expertise in server-side logic, database management, API integration, and monitoring. Proven ability to deliver high-quality, scalable solutions that meet evolving business needs. Strong collaborator, adaptable to fast-paced environments, and focused on driving team success. Proficient in programming frameworks like Symfony, Laravel, databases SQL and NoSQL, and cloud platforms. Known for reliability, problem-solving skills, and results-driven approach.

Overview

8
8
years of professional experience
4
4
years of post-secondary education

Work History

Senior Backend Developer

Acierto
07.2023 - 02.2025

Main Responsibilities:

  • Member of the Loans squad responsible for the development of new features and maintenance of the web platform and internals tools.
  • Contributed to an agile work environment by employing Scrum methodologies, actively participating in a cross-functional team for sprint planning, daily meetings, and sprint reviews.
  • Focused on writing maintainable code, incorporating various practices such as Hexagonal Architecture, DDD, SOLID principles.
  • Collaborated through pull request reviews, providing and receiving feedback to enhance code quality and promote a culture of continuous improvement.


Tech stack:

  • Back-end: PHP 5.6, 7.x, 8.1, Laravel 8, PHPUnit
  • Infrastructure: MySQL, MongoDB, Redis, RabbitMQ, Docker
  • Tools: Github, SonarQube, Elastic Stack, PowerBI

Senior Backend Developer

Housfy
07.2022 - 07.2023

Main Responsibilities:

  • Actively contributed as member of the team responsible for the development of new features for both the internal back office and the web platform.
  • Wrote comprehensive unit tests using the PHPUnit framework to ensure the quality and reliability of the codebase.
  • Wrote acceptance tests using Behat framework to ensure the high quality and reliability of the backend flow.
  • Contributed to an agile work environment by employing Scrum methodologies, actively participating in a cross-functional team for sprint planning, daily meetings, and sprint reviews.
  • Focused on writing maintainable code, incorporating various practices such as Hexagonal Architecture, DDD, SOLID principles.
  • Collaborated through pull request reviews, providing and receiving feedback to enhance code quality and promote a culture of continuous improvement.


Tech stack:

  • Back-end: PHP 8.1, Laravel 9, PHPUnit, Behat
  • Front-end: Vue, Typescript
  • Infrastructure: MySQL, Redis, RabbitMQ, Docker, AWS
  • Tools: Github, Sentry

Backend Developer

Exoticca
02.2021 - 07.2022

Main Responsibilities:

  • Contributed as a member of the web development team responsible for developing seamless user interactions, and facilitating smooth online purchasing experiences.
  • Wrote comprehensive unit tests using the PHPUnit framework to ensure the quality and reliability of the codebase.
  • Wrote acceptance tests using Behat framework to ensure the high quality and reliability of the backend flow.
  • Helped on the development of end-to-end tests with Cypress framework.
  • Contributed to an agile work environment by employing Scrum methodologies, actively participating in a cross-functional team for sprint planning, daily meetings, and sprint reviews.
  • Focused on writing maintainable code, incorporating various practices such as Hexagonal Architecture, DDD, CQRS, SOLID principles.
  • Documented technical workflows and knowledge, ensuring clear and comprehensive documentation for effective team collaboration and knowledge sharing.
  • Collaborated through pull request reviews, providing and receiving feedback to enhance code quality and promote a culture of continuous improvement.


Tech stack:

  • Back-end: PHP 8, Symfony
  • Front-end: React, Typescript
  • Infrastructure: MySQL, Redis, RabbitMQ, Docker, AWS
  • Tools: Github, Sentry, DataDog

Full Stack Developer

IQVIA
04.2018 - 02.2021
  • Developed microservices with Laravel Lumen as the backend framework, RabbitMQ as the message broker, and Docker for containerizing services.
  • Successfully integrated third-party APIs from external applications, enabling seamless communication and data exchange between systems.
  • Implemented web platform with .NET Core framework for the backend, and Angular at frontend side.
  • Worked with relational databases such as MySQL and SQL Server.
  • Reviewed code, debugged problems, and effectively resolved issues to ensure optimal functionality and code quality.
  • Collaborated within an Agile Scrum team, actively participating in sprint planning, daily meetings, and sprint reviews.

Full Stack Developer

Basetis
04.2017 - 03.2018
  • Developed and integrated Rest APIs with PHP and Symfony framework.
  • Worked on frontend development using Angular framework, contributing to the creation and enhancement of user interfaces.
  • Managed and developed relational databases, including MySQL and PostgreSQL, to optimize data storage, streamline operations, and enhance system performance.
  • Reviewed code, debugged problems, and effectively resolved issues to ensure optimal functionality and code quality.
  • Collaborated within an Agile Scrum team, actively participating in sprint planning, daily meetings, and sprint reviews.

Full Stack Developer

ATOS
09.2016 - 03.2017
  • Performed analysis of existing software implementations, identifying critical areas for improvement.
  • Collaborated closely with cross-functional teams to help on code reviews and testing.
  • Managed and successfully implemented relational databases.

Education

(Not Finished)Bachelor's Degree In Computer Engine -

Universitat Politécnica De Catalunya
09.2013 - 06.2017

Skills

Agile methodologies

DDD, Hexagonal, SOLID

Testing and maintenance

Collaboration, Teamwork

Resilience

Timeline

Senior Backend Developer

Acierto
07.2023 - 02.2025

Senior Backend Developer

Housfy
07.2022 - 07.2023

Backend Developer

Exoticca
02.2021 - 07.2022

Full Stack Developer

IQVIA
04.2018 - 02.2021

Full Stack Developer

Basetis
04.2017 - 03.2018

Full Stack Developer

ATOS
09.2016 - 03.2017

(Not Finished)Bachelor's Degree In Computer Engine -

Universitat Politécnica De Catalunya
09.2013 - 06.2017
Roger Fiallos SanchezBackend Developer