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15 followers · 0 following

Achievements

Achievement: Pull Sharkx2Achievement: Pair ExtraordinaireAchievement: Arctic Code Vault Contributor

Achievements

Achievement: Pull Sharkx2Achievement: Pair ExtraordinaireAchievement: Arctic Code Vault Contributor

Organizations

@OishikStudio @CADers-KUET

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RHJihan/README.md

👋 Hi, I’m Md. Rifat Hasan Jihan

I’m a Mechanical Engineering graduate from Khulna University of Engineering & Technology, currently transitioning into the field of software development.
I’ve built strong foundations in programming (C, C++, Java) and developed practical experience with frameworks, databases, and web technologies.
I enjoy problem-solving and am particularly drawn to backend development, where I focus on writing clean, scalable, and efficient code.

🛠️ Skills

Programming Languages

  • Proficient: C, C++, Java
  • Worked with: SQL, Python, Kotlin, JavaScript, Bash

Core CS Skills

  • Data Structures, Algorithms, Graph Theory, Dynamic Programming, Number Theory, Problem Solving

Frameworks

  • Spring, Spring Boot, Hibernate

Database

  • PostgreSQL, MySQL

Web Technologies

  • HTML, CSS, JavaScript, REST API, Thymeleaf

Other Technologies

  • JPA, Maven, Gradle, MVC, Git, GNU/Linux, LaTeX

🚀 Projects

MonoMart

E-commerce Backend API
Java, Spring Boot, PostgreSQL, JPA/Hibernate, JWT, Swagger, Maven

  • Implemented user authentication, role-based access control, product catalog, cart, and order workflows.
  • Built secure API endpoints and optimized data handling with validation layers and centralized exception management.
  • Integrated Swagger/OpenAPI docs and application health monitoring.

SecureFlow

User Management System
Java, Spring Boot, PostgreSQL, JPA/Hibernate, Thymeleaf, Maven

  • Built responsive web UI with Thymeleaf templates integrated with Spring Security.
  • Implemented role-based access control, session management, and BCrypt password hashing.
  • Added Spring Boot Actuator for health monitoring and metrics.

Solarized Facebook

Browser Extension — Custom Facebook Theme
JavaScript, CSS, Browser Extension APIs

  • Applied Solarized dark color scheme to Facebook for a consistent UI experience.

FontScope

Font Preview & Comparison Tool
JavaScript, CSS, HTML

  • Developed a web tool to preview and compare fonts side-by-side in real time.
  • Designed a responsive, lightweight interface for designers and developers.

🌍 Open-source Contributions

HeliBoard

3.6k+ Stars • Java, Kotlin, Android SDK

  • Contributed 29 merged pull requests including bug fixes, new features, and enhanced Bengali language support.

Other Contributions

Popular repositories Loading

  1. Solarized-Facebook Solarized-Facebook Public

    Solarized color scheme for Facebook & Messenger.

    HTML 1

  2. Otobi_Keyboard Otobi_Keyboard Public archive

    Bangla Bijoy-like layout for PC and android.

    HTML

  3. rhjihan.github.io rhjihan.github.io Public

    portfolio website

    CSS

  4. RHJihan RHJihan Public

    Config files for my GitHub profile.

  5. HeliBoard HeliBoard Public

    Forked from Helium314/HeliBoard

    Java 2

  6. florisboard florisboard Public

    Forked from florisboard/florisboard

    An open-source keyboard for Android which respects your privacy. Currently in early-beta.

    Kotlin