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
July, 2025 - Present
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.
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.
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.
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%.
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
February, 2024 - July, 2025
Collaborated with cross-functional teams of front-end and back-end developers and designers to develop scalable websites, delivering projects aligned with client specifications.
Architected and implemented server-side logic, optimizing data storage and retrieval processes, leading to a 25% improvement in website performance.
Identified and resolved programming bottlenecks and bugs, decreasing system downtime and enhancing overall application stability by 30%.
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.
July, 2023 - February, 2024
Worked on Discord bots, Telegram bots, and integrated OpenAI API to enable intelligent conversational features within client applications.
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.
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
March, 2023 - July, 2023
Designed and implemented responsive UI components using Next.js, improving user experience on various screen sizes and devices.
Developed application interfaces in Next.js and troubleshot interface software to ensure smooth functionality and effective debugging.
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_
Bangla
English
Typescript
Skills_
Languages
TypeScript, JavaScript, Go, Rust, Python, SQL
Front-End Development
React.js, Next.js, Redux Toolkit, React Query, Tailwind CSS
Back-End Development
Node.js, Express, tRPC, gRPC, Gin, Drizzle, Prisma, Socket.io, BullMQ, Redis, PostgreSQL, MongoDB
Desktop Development
Tauri 2.0, Rust, Offline-first sync
Automation and Web Scraping
Puppeteer, Selenium
DevOps and Deployment
Docker, Podman, Kubernetes, GitHub Actions, AWS, Nginx, Turborepo, Vercel, Firebase
Projects_
discount selenium
browserautomation
python
selenium
A Python library facilitating simplified browser automation via the WebDriver HTTP protocol.
keycloak authentication
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
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
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
discord-bot
discord-js
musicbotdiscord
typescript
A discord music bot built using typescript and discordJs.
whiteboard app
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
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
chat-application
express
filesystem
socket-io