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
Software Engineer & Tech Enthusiast Exploring Deeper Systems.
I build backend and full-stack products, automation workflows, data systems and IoT-connected applications. I enjoy exploring architecture, understanding how systems behave, and taking ownership of reliable solutions.
Overall expertise
I build reliable software products that solve real business problems.
I am a software engineer and tech enthusiast focused on backend systems, secure APIs, business applications, data workflows and modern applications. Curiosity drives me to investigate unfamiliar systems, understand root causes and build responsible solutions designed for reliability 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.
Automation, Data and IoT Systems
Business automation, structured data processing, MQTT workflows and product experiments that connect software with real-world data.
Years of hands-on development
0+
Full-stack, SaaS and API focus
--
Database, dashboards and data-flow projects
0+
Current role at SM Technology
--
Tech Stack
Tools I use across software, backend, business applications, data and deployment.
Node.js
C# / .NET
SQL Server
Express.js
REST APIs
MongoDB
PostgreSQL
JWT Auth
JavaScript
TypeScript
React
Next.js
Flutter
Prisma
AWS EC2
Nginx
Docker
Redis
GitHub
IoT Systems
AI-Assisted Engineering
Node.js
C# / .NET
SQL Server
Express.js
REST APIs
MongoDB
PostgreSQL
JWT Auth
JavaScript
TypeScript
React
Next.js
Flutter
Prisma
AWS EC2
Nginx
Docker
Redis
GitHub
IoT Systems
AI-Assisted Engineering
Selected Projects
Crafting digital products that solve real problems.
Production IoT platform for pond monitoring, automation and remote device control.
Open XFisheryIoT SaaS
xFishery - Production IoT Aquaculture Platform
Real-time pond monitoring, automated aerator and feeder control, device scheduling, analytics and multi-role workflows. Built with Next.js, React, Express.js, TypeScript, MongoDB, ESP32 integration and a published Flutter Android companion app.
Visit Project
Inventory, sales, reports and role-based workflows for pharmacy teams.
Open MediTrackPharmacy SaaS
MediTrack Management System
Operational pharmacy management for inventory, stock control, billing, reporting, analytics and secure role-based workflows. Built with Node.js, Express.js, MongoDB, JWT and RBAC, and deployed on AWS EC2 with Nginx and HTTPS.
Visit Project
Reputation Intelligence
SafeLead - Production Reputation Intelligence
Customer-risk classification, reporting, analytics, subscriptions and high-volume processing built with Node.js, TypeScript, Prisma, MongoDB, Redis and Firebase. Migrated 164,400 legacy reports across 109,218 customer identities with zero skipped records.
Discuss Project
Social Platform
Connect - Kids Social Media & Communication
Modular backend architecture toward a 2M+ user growth target with feeds, stories, real-time chat, presence, calls, live streaming and AI moderation. Built using Node.js, TypeScript, PostgreSQL, Redis, BullMQ, WebSockets, Agora, AWS S3 and FFmpeg.
Discuss Project
Mobile Application
Roub - Food Ordering & Delivery
Mobile food-ordering and delivery application covering restaurant discovery, menu browsing, food customization, cart management, checkout, delivery details, order confirmation, tracking, account management and reusable application components.
Discuss Project
AI Legal SaaS
Lex.AI - AI-Powered Legal Platform
Legal SaaS platform spanning requirements, architecture, database design, authentication, APIs, document retrieval, LLM-assisted features and reporting. Helped secure BDT 10 lakh through technical execution and product demonstration at DIU Accelerator Cup 2023.
Request Deck
Current Role and Wider Direction
Backend Engineer at SM Technology with broad software engineering roots.
I currently build production business applications, backend services, REST APIs, integrations and data-driven features with Node.js, Express.js, TypeScript, PostgreSQL, MongoDB and Redis. Beyond current projects, I explore scalable architecture, AI-assisted engineering, blockchain infrastructure, fintech and emerging technologies.
REST API design, auth flows and integration-ready services
Full-stack product work with React, Next.js, dashboards and deployments
Curious exploration across AI, IoT, blockchain, fintech and emerging 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.