Yeasir Hossain

Senior Software Developer

Versatile software developer creating innovative web solutions with a focus on seamless user experiences and robust backend functionalities.

Experience_

Senior Software Developer

Solutech Holdings

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July, 2025 - Present

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Lead developer on CareNect, a healthcare staffing supply chain platform connecting providers posting shifts with agencies proposing workers, built as a pnpm + Turborepo monorepo with Next.js 15, Express, tRPC, Drizzle ORM and PostgreSQL.

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Designed the multi-tenant, role-based domain model across platform, provider and agency organizations, including compliance gating, document expiry validation and dual-invoice generation with configurable margins between provider and agency billing.

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Built the background job infrastructure with BullMQ and Redis, including a hardened session-based admin dashboard, configurable cron schedules and queue monitoring for recurring compliance and billing workloads.

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Owned the containerized deployment pipeline: Docker/Podman images published to GHCR, GitHub Actions CI/CD with a self-hosted runner, Kubernetes-style service orchestration and nginx plus observability on AWS EC2, cutting image size by 38%.

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Delivered an offline-first desktop application for a separate client using Tauri 2.0, with a React and TypeScript front end, Rust commands and a bundled local PostgreSQL sidecar, syncing against a Go and Gin REST API with server-authoritative conflict resolution.

Senior Software Developer

RootDevs

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February, 2024 - July, 2025

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Collaborated with cross-functional teams of front-end and back-end developers and designers to develop scalable websites, delivering projects aligned with client specifications.

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Architected and implemented server-side logic, optimizing data storage and retrieval processes, leading to a 25% improvement in website performance.

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Identified and resolved programming bottlenecks and bugs, decreasing system downtime and enhancing overall application stability by 30%.

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Managed cache servers shared by multiple applications, reducing data retrieval times by 60% and saving 80% bandwidth usage, significantly improving system scalability.

Junior Developer

CoveDevs Ltd.

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July, 2023 - February, 2024

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Worked on Discord bots, Telegram bots, and integrated OpenAI API to enable intelligent conversational features within client applications.

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Created a user journey analytics script, tracking user behavior across website routes. The script recorded user activity duration per route, temporarily stored the data in Redis, and pushed it to MongoDB upon user exit.

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Integrated third-party payment systems, developed chat applications, and contributed to a Fintech bot on EVM chains, improving transaction automation and processing.

MERN Stack Developer Intern

MastTrip

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March, 2023 - July, 2023

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Designed and implemented responsive UI components using Next.js, improving user experience on various screen sizes and devices.

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Developed application interfaces in Next.js and troubleshot interface software to ensure smooth functionality and effective debugging.

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Worked on a SaaS tourism platform where users could browse and select places, hotels, restaurants, guides, and transport options. Enabled travel agencies to list their own custom packages, contributing to the platform’s versatility and user-friendliness.

Languages_

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Bangla

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English

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Typescript

Skills_

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Languages

TypeScript, JavaScript, Go, Rust, Python, SQL

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Front-End Development

React.js, Next.js, Redux Toolkit, React Query, Tailwind CSS

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Back-End Development

Node.js, Express, tRPC, gRPC, Gin, Drizzle, Prisma, Socket.io, BullMQ, Redis, PostgreSQL, MongoDB

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Desktop Development

Tauri 2.0, Rust, Offline-first sync

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Automation and Web Scraping

Puppeteer, Selenium

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DevOps and Deployment

Docker, Podman, Kubernetes, GitHub Actions, AWS, Nginx, Turborepo, Vercel, Firebase

Projects_

discount selenium

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browserautomation

python

selenium

A Python library facilitating simplified browser automation via the WebDriver HTTP protocol.

keycloak authentication

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authentication

caching

containerization

docker

express

jwt

keycloak

longest-word

mern-stack

mongodb

nodejs

paragraph-detection

react

redis

sentence-boundary-detection

text-analysis

text-tokenization

typescript

word-frequency-analysis

A full-stack text analysis application with Keycloak authentication, implementing word tokenization, sentence boundary detection, and longest word extraction algorithms with Redis caching for performance optimization.

bkash nodejs library

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bkash

javascript

library

bKash is a leading MFS in Bangladesh aim to implement bKash tokenized aph and growing its user-base rapidly. So does its integration with services. This nodejs SDK for developers who wants to integrate bKash tokenized api with their service(s) written in javascript.

khalti node sdk

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fintech

gateway

khalti

khalti-integration

khalti-payment-gateway

khalti-sdk

nepal

nodejs

payment

sdk

A TypeScript SDK for seamless integration with Khalti Payment Gateway in Node.js applications. Supports payments, verification, refunds, and bank listing with full type safety and framework-agnostic implementation.

DJ the music bot

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discord-bot

discord-js

musicbotdiscord

typescript

A discord music bot built using typescript and discordJs.

whiteboard app

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canvas

javascript

reactjs

This whiteboard app, developed with React, provides a simple and intuitive platform for drawing on a digital canvas. It features smooth drawing functionality along with undo and redo options, allowing users to easily correct or modify their sketches. The app showcases the interactivity of React in creating dynamic user interfaces, making it a great

daraz scrapper

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nodejs

puppeteer

scrapper

Scrap data of a searched product. Only giving the search link does the trick. After scrapping a JSON is returned

chat server

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chat-application

express

filesystem

socket-io

This a chat server for chatting in groups or private. This also enables users to share files, photos, videos and audios.

Contact_