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Agentic AI Developer & Architect

Building the agents that your business needs.

I am Kishjan Deep Yonghang. I design, build, and deploy production-grade autonomous multi-agent systems that automate complex business workflows and scale operations.

The AI Engineering Philosophy

I believe the future of enterprise software is not just apps that users interact with, but autonomous agents that act on behalf of the business. By leveraging large language models, deterministic state machines, and robust API integrations, I build scalable systems that drastically reduce manual operations and scale revenue generation around the clock.

Flagship Systems

Production-grade autonomous agents designed for scale and revenue generation.

PhoneX Multi-Agent Commerce

A sophisticated event-driven e-commerce orchestrator. PhoneX utilizes 16 specialized micro-agents to handle inventory forecasting, dynamic pricing, intelligent customer support, and fully autonomous supply chain routing without human intervention.

LangGraphFastAPIPostgreSQL
View Architecture →
$ phonex-core --launch-swarm
[System] Orchestrator initialized. Spawning 16 agents...
[Inventory_Agent] Forecasting stock depletion for SKU-9942
[Pricing_Agent] Adjusting margins based on demand surge (+12%)
[Support_Agent] Resolving 43 pending customer tickets.
> Supply chain route optimized autonomously.
ALL SYSTEMS NOMINAL _

Omnichannel AI Sales Closer

A high-conversion state-machine conversational agent that seamlessly syncs to HubSpot and enterprise CRMs. It handles objection handling, product recommendations, and payment links dynamically across WhatsApp, Meta, and Web.

State MachineWebhooksMeta API
View Architecture →
Webhook received: WhatsApp [Incoming Message]
[User] "Is this available in Enterprise tier?"
[Intent Classifier] intent=pricing_inquiry | confidence=0.98
[State Machine] Transitioning to state: OBJECTION_HANDLING
[Action] Generating personalized payment link via Stripe API...
> Reply sent. CRM (HubSpot) record updated.

Autonomous HRM Agent

An internal enterprise agent that acts as an autonomous HR department. It securely handles employee onboarding workflows, PTO requests, payroll inquiries, and routes complex grievance issues to human managers using secure RAG.

LlamaIndexRAGPython
Private Enterprise Deployment
hrm_agent --query "Onboarding docs for Alice"
[RAG_Engine] Searching vector database (pgvector)...
[Retriever] Found 3 documents: Employee_Handbook.pdf, IT_Policy.md
[Compliance_Check] Verifying document clearance level: PASSED
[Action] Compiling summary and drafting email to Alice...
> Workflow completed in 1.2s. Email dispatched.

Explore Open Source

Browse my production-ready boilerplate architectures built for scale and security.

phonex-multi-agent-commerce
Event-driven e-commerce orchestrator using 16 specialized micro-agents.
LangGraphFastAPIPython
enterprise-sql-agentic-rag
Secure B2B BI copilot allowing non-technical users to query SQL via RAG.
LlamaIndexPostgreSQLStreamlit
agent-firewall-guardrails
LLM proxy middleware for automated PII redaction and prompt-injection defense.
PresidioNeMoSecurity
ai-sales-closer
Omnichannel state-machine conversational agent syncing to HubSpot/CRM.
WebhooksMeta APIState Machine

Let's Build Something

Looking to deploy autonomous agents in your business? Send me a message.