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shu-yusa/README.md

Hi there! πŸ‘‹ I'm Shusaku Yusa

Software Engineer | Ph.D. in Physics | Backend Specialist

I'm a software engineer with a unique journey from nuclear physics research to building scalable web applications. I combine scientific rigor with practical engineering to solve complex problems.

πŸ”¬ Background

  • Ph.D. in Physics from Tohoku University (2013)
  • Transitioned from academic research to software engineering
  • Published research on nuclear reactions and quantum mechanics
  • Hold patents in 3D measurement and object detection systems

πŸ’Ό Professional Experience

  • Backend Engineering: Extensive experience in web application development
  • Data Science: Built statistical time-series models for sales prediction
  • Research & Development: Developed image processing algorithms and gesture recognition systems
  • Technical Leadership: Led product development and infrastructure management
  • Legacy System Modernization: Specialized in refactoring large codebases with testing frameworks

πŸ› οΈ Technical Expertise

Languages

Proficient: Python, PHP, SQL
Familiar: Go, JavaScript, Shell Script, Fortran
Experience with: Java, C++, R

Specializations

  • Backend Engineering - API development, performance optimization
  • Software Testing - TDD, scripted testing, CI/CD pipelines
  • Infrastructure as Code - Server management, deployment automation
  • Data Analysis - Scientific approach to problem-solving
  • Legacy Code Refactoring - Large-scale codebase improvements

Areas of Interest

  • Software Design & Architecture
  • Test-Driven Development
  • Site Reliability Engineering
  • Monitoring & Observability

πŸ”­ What I Do

  • Build robust backend systems for web and mobile applications
  • Optimize application performance and scalability
  • Establish testing frameworks and CI/CD pipelines
  • Bridge technical and business requirements through clear communication
  • Apply scientific methodology to software engineering challenges

🌟 Core Strengths

  • Problem-Solving: Objective and logical approach rooted in scientific training
  • Technical Leadership: Successfully led product development initiatives
  • Cross-functional Collaboration: Experience working with diverse stakeholders
  • Continuous Learning: Constantly evolving with new technologies and practices
  • Quality Focus: Emphasis on reliable, maintainable code

πŸ“š Academic Publications

Research focused on nuclear physics, quantum mechanics, and computational physics:

  • Multiple publications in Physical Review C
  • Ph.D. thesis on heavy-ion fusion reactions
  • Computational modeling using Fortran and MPI

πŸ“« Let's Connect

I'm always interested in discussing software engineering, system design, or applying scientific principles to technology challenges.


GitHub Stats

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  1. ccfull-qel ccfull-qel Public

    Code for calculating quasi-elastic scattering using the coupled-channels method.

    Fortran 4 1

  2. ccfull-rmt ccfull-rmt Public

    Coupled-channels calculation for fusion reaction and quasi-elastic scattering with taking into account noncollective excitations.

    Fortran 3 2

  3. phd-thesis phd-thesis Public

    My Ph.D. thesis on nuclear physics

    TeX 1

  4. single-particle-states single-particle-states Public

    Code for calculationing nuclear single-particle states under Woods-Saxon potential.

    Fortran 2

  5. Dobon Dobon Public

    Card game app for "open-appli" platform by AU.

    Java

  6. go-tls go-tls Public

    Go 2