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Shirshendu G.

Shirshendu G.

AI & Full-Stack Solution Architect | SaaS, Web, Mobile & Automation

I help businesses design and build scalable digital products across AI, SaaS, web, mobile and automation. My work focuses on translating business requirements into practical technical solutions, selecting the right architecture and technology stack, and delivering applications that are secure, scalable and ready for real-world use. I work across modern AI implementations, custom software development, SaaS platforms, API-driven applications, workflow automation, e-commerce and cloud-based systems. ### What I Can Help You Build ✓ AI-Powered SaaS Applications ✓ Generative AI & LLM Integrations ✓ AI Agents & Agentic Workflows ✓ RAG-Based Knowledge Systems ✓ AI Chatbots & Virtual Assistants ✓ n8n & Business Process Automation ✓ Custom Web Applications ✓ SaaS Platforms & Multi-Tenant Systems ✓ Mobile Applications ✓ API & Third-Party Integrations ✓ E-commerce Platforms ✓ Internal Business Applications ✓ CRM & ERP Integrations ✓ Cloud-Based Applications ✓ Legacy Application Modernisation ### AI & Intelligent Automation I work on AI solutions that go beyond simply adding a chatbot to an application. Depending on the business use case, solutions can include: * OpenAI and Claude integrations * Large Language Model applications * Retrieval-Augmented Generation (RAG) * Vector databases and semantic search * AI agents and multi-agent workflows * Intelligent document processing * AI-powered search and recommendation systems * Knowledge-base assistants * Automated customer support systems * AI-enabled internal tools * n8n workflow automation * API-driven AI workflows * Human-in-the-loop AI systems The objective is always to identify where AI creates measurable value rather than introducing AI simply because it is available. ### Full-Stack Web & SaaS Development I can work with modern application architectures involving technologies such as: *Frontend* * React * Next.js * JavaScript * TypeScript *Backend* * Node.js * NestJS * Python * REST APIs * GraphQL * Microservices *Databases* * PostgreSQL * MySQL * MongoDB * Redis * Vector Databases *Cloud & Infrastructure* * AWS * Microsoft Azure * Google Cloud Platform * Docker * CI/CD * Cloud Deployment ### SaaS Product Development I can help design and develop SaaS products from initial concept through production deployment. This may include: * Multi-tenant architecture * User authentication and RBAC * Subscription management * Payment integrations * Admin dashboards * Analytics and reporting * API integrations * AI capabilities * Notification systems * Data management * Security and access control * Scalable backend architecture Whether you are building an MVP or expanding an existing SaaS platform, I focus on creating an architecture that can evolve as the product grows. ### Mobile Application Development I can also support mobile product development across: * React Native * Flutter * API-integrated mobile applications * AI-enabled mobile apps * SaaS companion applications * Marketplace applications * E-commerce applications * Business and productivity applications ### E-commerce & Digital Platforms My experience also covers: * Shopify * Shopify Plus * WooCommerce * WordPress * Custom e-commerce applications * Headless commerce * Payment gateway integration * Inventory and order-management integrations * Subscription commerce * Marketplace platforms ### Solution Architecture Technology decisions made at the beginning of a project can significantly affect scalability, performance and development cost later. I can help with: ✓ System Architecture ✓ Technical Discovery ✓ Technology Stack Selection ✓ Database Architecture ✓ API Architecture ✓ AI Architecture ✓ Cloud Architecture ✓ Third-Party Integration Planning ✓ Scalability Planning ✓ Security Considerations ✓ MVP Architecture ✓ Existing System Modernisation ### How I Approach Projects My approach starts with understanding the actual business problem. Business Requirement → Functional Analysis → Solution Architecture → Technology Selection → Development → Integration → Testing → Deployment → Optimisation I prefer architecture first and technology second. The right solution may involve conventional software engineering, automation, AI or a combination of all three. The objective is to build something that is technically sound, commercially practical and maintainable after launch. If you are planning a SaaS platform, AI product, web application, mobile application or automation initiative, share your requirement and I can help define the most suitable technical approach.

🇮🇳Kolkata, India$20/hr80% JSS5.00 (1)Since Aug 2025

Earnings and projects

MRR
$0

Last 6 months ÷ 6

World#344,286 / 412k
🇮🇳Country#38,322 / 45.9k
Revenue, last 30 days
$0
Total earnings
$1.8k

Billed in all: $1.9k

World#344,286 / 412k
🇮🇳Country#38,322 / 45.9k
Per project
$890
Projects, last 6 months
0
World#209,850 / 412k
🇮🇳Country#23,217 / 45.9k
Projects in all
2
0% fixed100% hourly
World#328,886 / 412k
🇮🇳Country#39,422 / 45.9k

Earnings, last 30 days

$1.9kNothing earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$1,840$1,860$1,880$1,900Oct 8Oct 23Nov 7

Skills