Backend and API Development
Node.js and Express.js services with clean REST architecture, validation, auth, maintainable routing and integration-ready APIs.
Shahriar Hossain
Every Problem
Is A Chance
Software Engineer
Engineering SaaS, APIs & Scalable Systems.
I work across backend, full-stack product development, SaaS dashboards and IoT-connected systems. My focus is building scalable backend systems with Node.js, Express.js, REST APIs, MongoDB and PostgreSQL.
Overall expertise
I build reliable software products that solve real business problems.
I am a software engineer focused on backend and full-stack development, building secure APIs, scalable databases, and modern web applications. My work spans SaaS platforms, dashboards, IoT-connected systems, and production-ready tools designed for performance, clarity, and growth.
Accelerator Cup 2023 Champion
Product thinking, pitching and engineering leadership in one moment.
Services Offered
Product engineering across backend, frontend, data and IoT.
Full-Stack SaaS Products
React and Next.js dashboards connected to reliable data models, role-based flows and real user workflows.
IoT and Tech Experiments
ESP32, sensors, MQTT-style thinking and product experiments that connect software with real-world data.
Production and product builds
0+
Full-stack, SaaS and API focus
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Database and data flow experience
0+
Current role at SM Technology
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Tech Stack
Tools I use to build and maintain modern products.
Node.js
Express.js
REST APIs
MongoDB
PostgreSQL
JWT Auth
JavaScript
TypeScript
React
Next.js
AWS EC2
Nginx
GitHub
IoT Systems
Node.js
Express.js
REST APIs
MongoDB
PostgreSQL
JWT Auth
JavaScript
TypeScript
React
Next.js
AWS EC2
Nginx
GitHub
IoT Systems
Selected Projects
Crafting digital products that solve real problems.
IoT SaaS for pond analytics, farmer dashboards and device monitoring.
Open XFisheryIoT SaaS
XFishery Smart Aquaculture
Farmer and admin dashboards, device tracking, pond analytics and cloud-connected aquaculture operations with full-stack and IoT thinking.
Visit Project
Inventory, sales, reports and role-based workflows for pharmacy teams.
Open MediTrackPharmacy SaaS
MediTrack Management System
Inventory, sales, reports and role-based workflows built with a practical SaaS mindset for non-technical pharmacy operators.
Visit Project
AI legal guidance concept with product, pitch and MVP direction.
Request DeckAI Product
Lex.AI Legal Assistant
AI-assisted legal guidance concept recognized at DIU Accelerator Cup with product, pitch, MVP and tech leadership.
Request Deck
Tap-ready digital business and personal cards with QR generation.
Open Let's ConnectDigital Identity
Let's Connect
Business and personal card builder made for instant sharing, tap-friendly profiles and QR generation for faster networking.
Visit Project
Current Role and Wider Direction
Backend Developer at SM Technology, with full-stack product roots.
I currently work on backend development with Node.js, Express.js, REST APIs, MongoDB, PostgreSQL and related server-side practices. Alongside that, I keep building and studying full-stack products, SaaS dashboards, AI tools, IoT systems and emerging technologies.
REST API design, auth flows and integration-ready services
Full-stack product work with React, Next.js, dashboards and deployments
Technology enthusiasm across SaaS, AI tools, IoT and product systems
Work Together
Ready to build something useful and scalable?
Tell me what you are building, what the users need and where the technical pressure is. I can help with backend systems, dashboards, data models, integrations or early product architecture.