Paritosh S.

LLM, RAG & Enterprise AI
I build AI applications that work with your data, documents, business rules and internal knowledge rather than simply generating generic responses.
• Retrieval-Augmented Generation (RAG)
• Enterprise knowledge assistants
• Document Q&A
• Semantic and hybrid search
• Vector databases and embeddings
• AI document intelligence
• Source-grounded responses
• Knowledge bases and enterprise search
• AI memory and context management
• Access-controlled retrieval

Voice AI & Conversational Applications
I also build voice-enabled AI experiences for web, mobile and business workflows:
• AI voice agents
• AI receptionists
• Inbound and outbound calling
• Voice-based customer support
• Lead qualification
• Appointment booking
• Call summaries and data extraction
• CRM updates after calls
• Human transfer and escalation

AI SaaS & Full-Stack Architecture
For AI startups and businesses building their own products, I can work across the complete application stack:
• Multi-tenant SaaS
• Organization-level data isolation
• RBAC and authentication
• AI usage and cost tracking
• Subscription and billing
• Secure APIs
• Admin dashboards
• Cloud infrastructure
• Background jobs and queues
• Real-time communication
• Monitoring and logging

From Idea or POC to Production - I don't approach AI projects as simply connecting an LLM to a UI.
A production AI product needs the right combination of: Business workflow + UX + application architecture + AI + data + integrations + security + monitoring

My approach typically includes:

1. Understanding the business and user workflow
2. Defining the product and technical architecture
3. Identifying the right AI/automation opportunities
4. Building a focused MVP or proof of concept
5. Integrating APIs, databases and business systems
6. Testing AI behavior, workflows and edge cases
7. Deploying to production
8. Monitoring, optimizing and supporting the product

I have worked across:
• Healthcare & Wellness
• FinTech
• Real Estate
• Logistics & Supply Chain
• Education
• E-commerce
• Manufacturing
• Insurance
• Sales & Marketing
• Enterprise Operations

Why Clients Work With Me

✓ Top Rated Plus Upwork developer
✓ 99% Job Success Score
✓ 1,200+ Upwork hours delivered
✓ Full-stack + AI + mobile development capabilities
✓ Experience building production AI applications and SaaS platforms
✓ Strong API, CRM/ERP and third-party integration experience
✓ Experience with AI agents, RAG, automation and voice AI
✓ Comfortable working with existing codebases and architectures
✓ Focus on scalable, secure and maintainable solutions
✓ Clear communication and practical technical decision-making

If you have a PRD, Figma design, existing application, API, database, AI prototype or simply a business idea, I can help turn it into a working product. Tell me what you are building?