Backend · Low-level · Architecture

Joshua Ferrer

Backend Engineer | IT Architecture

I love low-level programming and building systems from scratch. For me, this is the best way to learn: understanding memory, performance, and execution flow directly instead of relying on abstractions. My main focus is backend engineering with a strong performance mindset.

Contact Skills Experience
  • LocationTokyo
  • Domainlow-level-guy.com
  • FocusBackend · Performance · Architecture

About me

I specialize in backend systems and low-level programming. I enjoy avoiding unnecessary dependencies and building core functionality myself, as it gives a deeper understanding of how software actually works.

My daily work involves backend development, architecture design, and cloud-based systems, with a strong focus on reliability and maintainability.

Experience

株式会社日本教育クリエイト — ITソリューション事業部

2024/09 — Present

Backend Engineer. Internal business systems, infrastructure integration, and architectural design.

  • Design and implementation of backend services using .NET / ASP.NET.
  • Cloud integrations across Azure, AWS, Google Cloud, and Oracle Cloud.
  • Ownership of deployment workflows using Docker and Linux-based environments.
  • System-level problem solving with performance and reliability as primary goals.
C# ASP.NET Docker Linux

Skills

Technical

  • Languages: C, C# (main), others as needed
  • Frameworks: .NET, ASP.NET
  • Cloud: Google Cloud, AWS, Azure, Oracle
  • OS: Arch Linux, Ubuntu, Debian (Windows via WSL)
  • Tools: VS Code, Vim

Languages

  • English — native
  • Spanish — native
  • Catalan — native
  • Japanese — fluent / business (JLPT N1)
  • Chinese — beginner (HSK3)

Education

IT Business
東京ビジネス外語カレッジ（池袋）
Senmon Gakkou

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