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Rubén R.

Senior Developer PHP
  • Tarifa aproximada
    340 € /día
  • Experiencia8-15 años
  • Tasa de respuesta100%
  • Tiempo de respuesta1h
El proyecto se dará por comenzado una vez hayas aceptado el presupuesto de Rubén.
Localización y desplazamiento
Localización
Barcelona, CT, España
Trabajo a distancia
Lleva a cabo sus proyectos principalmente en remoto
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Habilidades profesionales (8)
Rubén en pocas palabras
I am a PHP developer with more than 12 years of experience, 7 of them applying event-driven hexagonal architecture with DDD. I worked at companies such as Filmin or Electromaps.

I write decoupled, tested and typed code, to ensure maintenance and robustness. Performance is always in my mind, so I always implement horizontal scaling architectures. CI/CD is a must in all my projects.

I like decoupling legacy code, adding testing and quality processes, improving its performance and logging metrics.
Experiencia
  • Electromaps
    Senior PHP Developer
    ENERGÍA
    junio de 2022 - marzo de 2023 (10 meses)
    Barcelona, Spain
    I led the integration of the platform with Cognito authentication system. I analyzed the current system and proposed the solution and the tasks to develop for the three systems we had, allowing to migrate the existing user base in a transparent and seamless way, without having to reset user passwords. I implemented the required Lambdas using Python and Golang, applying hexagonal architecture. We used an event-driven architecture to keep our systems and external providers in sync.

    I developed a billing system to generate invoices for different currencies, taxes and countries. In order to generate the PDF, I used Latex, as it is a utility created specially for that purpose. I implemented a promotional code system with race condition checks and rate limiting to avoid abusing the system.

    Some other tasks developed:

    - CQRS applications development using PHP.
    - Taught several trainings for good practices: hexagonal architecture, DDD, CQRS, object
    calisthenics, regular expressions, testing...
    - Integrate quality tools such as mutation testing, static type analyzers, architecture layer
    validators...
    PHP Testing Hexagonal Architecture Event-driven architecture Golang Python DDD AWS Redis RabbitMQ
  • Filmin
    Senior PHP Developer
    CINE & AUDIOVISUAL
    febrero de 2021 - junio de 2022 (1 año y 4 meses)
    The company had a sudden increase in concurrent users due to the pandemic. My job consisted on designing and developing new systems within the company to allow it to scale in code. I also helped modernize the existing codebase to use good practices, such as SOLID patterns, hexagonal architecture, DDD, CQRS...

    I led a team of five people to redesign Filmin’s home page under a tight deadline. Filmin’s home page is accessed by millions of people using a variety of devices (mobile, tablet, web, video-game consoles, TVs), so performance was key. We developed an API using Symfony as framework with a hexagonal architecture, allowing Protobuffers and JSON request and response formats while keeping the domain clean. Features were fully tested using unit, integration and functional tests. We implemented several layers of caching systems. As we have external developers that integrate with the API, we used a design-first approach writing our specifications using OpenAPI, and then we generated documentation for clients to consume. We also generated Typescript and Protobuf objects that can be consumed by clients.

    I led the development of the new encoding system of the company, integrating an external provider into the existing backoffice to generate all the video format required by the encoding team.

    I led the development of in-app purchases integrations with AmazonPay and GooglePay. I designed the architecture of the system with the domain in mind, so any other provider could be added without needing to modify the domain layer.

    Some other tasks developed:

    - CQRS applications development using PHP.
    - Decouple legacy projects from Laravel using hexagonal architecture.
    - Taught several trainings for good practices: hexagonal architecture, DDD, CQRS, object
    calisthenics, regular expressions, testing...
    - Integrate quality tools such as mutation testing, static type analyzers, architecture layer
    validators...
    - Wrote technical blog posts for the engineering team: https://dev.to/filmineng
    PHP Testing Hexagonal Architecture DDD Event-driven architecture OpenAPI API performance Redis RabbitMQ
  • Unviersitat Popular de Granollers
    Teacher
    febrero de 2019 - febrero de 2021 (2 años)
    Granollers, Barcelona, Spain
    Courses taught:
    - Filosofia contemporània: Course analyzing different aspects of our everyday life: chatter, boredom, image, ecofeminism, human supremacy, body and technology.
    - Filosofia de la negació: history of Philosophy course explaining aspects of negation of different traditions: Hellenism, Buddhism, Islamic Philosophy, Feminism and Modern and Contemporary thinkers (Hegel, Heidegger, Byung Chul Han).
Recomendaciones externas
Formación
  • Master of Philosophy
    Universitat Autònoma de Barcelona
    2015
    Master of Philosophy - MPhil
  • Bachelor of Engineering in Computer Science
    Molde University College
    2011
    Bachelor's degree, Computer Engineering
  • Bachelor of Engineering in Computer Science
    Universitat Autònoma de Barcelona
    2011
    Bachelor's degree, Computer Engineering