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Achievements

Achievement: Pull Sharkx2Achievement: YOLO

Achievements

Achievement: Pull Sharkx2Achievement: YOLO

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chatok-jnr/readme.md

Hi there, I'm

Md. Sakib Hosen AKA Chatok Junior

Backend Developer | Competitive Programmer

Typing SVG

About Me

  • Backend Developer | Spring Boot - Express.js - Postgresql
  • ICPC Asia Dhaka Regional Finalist (2024, 2025) with UITS_ACES

Tech Stack

Currently

Brushing up my backend developing skill on Spring Boot, Spring Security framework and looking for an opportunity.

Competitive Programming

  • Codeforces: chatok.jr Pupil (Max 1389) — 600+ solved
  • CodeChef: chatok_junior 3★ (Max 1724)
  • ICPC Asia Dhaka Regional Finalist — 2024, 2025 (Team UITS_ACES)
  • Champion — UITS Hackify Fest Programming Contest 2025, Intra University Programming Contest 2025
  • Competed in 6 Inter-University Programming Contests (IUT, KUET, UIU, AUST, UU, IUT)

Reach me at md.sakib.hos3n@gmail.com

Pinned Loading

  1. portfolio portfolio Public

    JavaScript

  2. LegalAid-Backend LegalAid-Backend Public

    Java

  3. secure-team-api secure-team-api Public

    A secure team management API demonstrating JWT authentication, RBAC, refresh token rotation, and audit logging with Spring Boot & PostgreSQL.

    Java

  4. BiteNow BiteNow Public

    Bite Now - Online Food Delivery App

    JavaScript

  5. E-commerce-API E-commerce-API Public

    JavaScript

  6. sudokuSolver sudokuSolver Public

    JavaScript 2