Roman Józwiak

Backend Software Engineer

About me

Detail-oriented, quality-focused and language-agnostic Software Engineer with 8+ years of experience in various domains, able to work in different environments. Constantly stepping out of my comfort zone to challenge myself by trying new approaches and technologies.

Education

  • Master's degree, Computer Science

    2014 - 2016, University of Gdańsk

    Master's Thesis: "Isolation of Application's Business Logic based on Domain-Driven Design."

  • Bachelor's degree, Computer Science

    2011 - 2014, University of Gdańsk

Experience

  • 2021 -
    Senior Software Engineer / Tech Leader at Altimetrik (  )
    • Working on Enterprise In-Store (Omnichannel) project at Braintree/PayPal.
    • Working on Venmo Disputes integration at Braintree/PayPal.
    • Managing a project and leading a team of engineers.
    • Functioning as a Ruby community leader at Altimetrik.
    • Designing Ruby Career Path (incl. skills matrix, learning paths and knowledge library).
    • Conducting Ruby and Rust technical interviews.
    • Onboarding new engineers.
    • Tech stack: Ruby/Rails, Rust, AWS, Serverless, GraphQL, Docker, Kubernetes.
  • 2020 - 2021
    Senior Software Engineer at Scalo (  )
    • Working remotely for Altimetrik Poland.
    • Tech stack: Rust, Ruby/Rails, AWS, Serverless, GraphQL, Docker.
  • 2017 - 2020
    Software Engineer at Beta District (  )
    • Developing, testing, delivering and maintaining features.
    • Preparing and keeping up to date code & features documentation.
    • Deploying services using Kubernetes, Docker and Codeship.
    • Leading a project based on automated customer retention marketing.
    • Designing DDD-lite based KYC service.
    • Mentoring Software Engineer interns.
    • Integrations: Optimove, Jumio, Postmark, Zendesk, FullContact.
    • Tech stack: Ruby/Rails, Sidekiq, PostgreSQL, AWS, Docker, Kubernetes, RabbitMQ, JavaScript, AngularJS, Bootstrap.
  • 2014 - 2017
    PHP Developer at Madkom S.A. (  )
    • Developing and maintaining web applications for clients from public sector.
    • Designing and implementing integrations based on SOAP and REST APIs.
    • Implementing ESB-based solution for centralized data mapping and integration between different companies.
    • Tech stack: PHP, Symfony, PostgreSQL, Docker, JavaScript, jQuery, Bootstrap, IBM Integration Bus v10.

Skills

  • Programming Languages
    • Ruby/RoR
    • Rust
    • JavaScript
    • PHP
    • Java
  • Other Techs / Tools
    • RDBMS / SQL
    • noSQL
    • CI/CD
    • AWS
    • Docker
    • Kubernetes
    • GraphQL
    • DDD

Interests

Computer Games
Board Games
Manga
Programming
Cooking
Biking
Dog Walking