🇧🇩 Rajshahi, Bangladesh

Khandoker Sefayet Alam

Competitive Programmer • Full-Stack Developer (MERN)

2x ICPC Dhaka Regional Participant • B.Sc in CSE • AI integration (LangChain) • Flutter

Codeforces Expert (max 1734)3500+ problems solvedUIU IUPC 2025 — 8th / 120+ teamsCodeChef 5★ (max 2019)AtCoder Cyan (max 1271)

Resume Email +8801919030974

Experience

Industrial Trainee (Apprenticeship)

Vivasoft Limited

Mar 2025

12-day mentor-led MERN attachment
Built MVP with Next.js/Redux + Express REST + MongoDB
LangChain summarization; Git/Husky; Postman

Software Engineer / LLM Evaluator (Contract)

Remotasks (Outlier)

Aug 2023 – Sep 2023

Evaluated programming task outputs
Improved correctness and response quality
Worked on Dolphin, Bee, Bulba projects

Skills

Strengths

Data Structures & AlgorithmsProblem Solving

Languages

C/C++JavaPythonJavaScriptDart

Frameworks

ReactExpress.jsDjangoFlutterLangChain

Databases

MongoDBFirebase (Auth/Firestore)MySQL

Tools

Git/GitHubPostmanREST APIs

Projects

Blog-Agency-App

Live Repo

ReactExpressMongoDBNodejs

Dashboard for blogs, teams, and services
Role-aware CRUD flows
RESTful Express API backed by MongoDB

Conflicts-Within-The-Journey-for-Identity

Live Repo

GodotGDscript

2D platformer built for BUET Game Jam 2023 (theme: “You are your own enemy”)
Playable build available via Google Drive download (extract and play)
Created by team Phantoms_Unmasked; secured 16th place out of 70+ teams

SellSense (LangChain)

Repo

JavaScriptLangChainLLMs

Summarizes buyer-seller chats
Outputs structured records
Designed for storage + retrieval

Codebook App

Live Repo

FlutterFirebaseGroq API

Snippet manager with real-time sync
AI assistant for explanation/review
PDF export for snippets

Highlights

Competitive Programming Profiles

Online Judges

Ongoing

Codeforces CodeChef AtCoder LeetCode

Codeforces: Expert (max rating 1734)- The_Ruthless
CodeChef: 5★ (Max 2019) — ghost_014
AtCoder: Cyan (Max 1271) — Ruthless__
Leetcode: Knight

UIU IUPC 2025 — 8th

120+ teams • Team: 1000000007

2025

bapsoj.org

Top 10 finish in a major IUPC

IUT IUPC 2024 — 20th

100+ teams • Team: RUET_Onirban

2024

toph.co

Top 20 finish

BUET IUPC 2024 — 23rd

120+ teams • Team: RUET_a_bit_slower

2024

Strong placement among top teams

ICPC Asia Dhaka Regional 2024 — 30th

300+ teams • Team: RUET_a_bit_slower

2024

bapsoj.org

Top 10% placement in regional contest

ICPC Asia Dhaka Regional 2025 — 38th

313 teams • Team: Insoluble_Heralds

2025

bapsoj.org

Consistent regional performance

SRBD Code Contest 2025 — 62nd

Onsite round qualifier • ~1.4k+ participants

2025

Qualified for onsite round

Meta Hacker Cup 2025 — Rank 1663

5k+ participants

2025

Certificate

Received official T-shirt

Code Samurai 2024 — Onsite Round

14th in preliminary • Team: RUET_UNKNOWNS

2024

Advanced to onsite round

BUET Game Fest 2023 — 16th

40+ teams • Team: RUET_Unknowns

2023

Built a 2D game using Godot

Codespark 2022 — 1st Runner-up

Intra RUET fresher team contest

2022

Runner-up finish

Codesmash 2021 — 2nd Runner-up

Intra RUET fresher individual contest

2021

Runner-up finish

Certificates & Licenses

Meta Hacker Cup 2025 — Certificate

Meta / Facebook Coding Competitions •

View

Official competition certificate
Global competitive programming contest track record

ICPC Dhaka Regional 2024

ICPC committee •

View

Reached Onsite
Strong ranking 30th among e00+ teams

Ostad — Full Stack Web Development (MERN)

Ostad •

View

MERN fundamentals + project-based learning
Practical web development skills validation

Udemy — Competitive Programming and Coding Interviews

Udemy •

View

Interview-style CP practice
Algorithms + problem solving improvement