About

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Profile

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Hey, I’m Daniyal Ahmed. I’m a Full-Stack Engineer based in Lisbon with 3+ years of experience. I currently work at ZappyRent.

I build and ship end-to-end products across Next.js and Node.js, plus modern GenAI stacks like RAG, LangChain, and LangGraph. I also build voice agents with LiveKit for real-time calling and conversations. I focus on practical agent workflows with strong retrieval, clear tool contracts, evaluation, guardrails, and observability.

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Tools I use to ship

Systems-first engineering stack

Next.js

Node.js

React

RAG

LangChain

LangGraph

PostgreSQL

Redis

Docker

AWS

Snapshots

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Gallery

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Working code is the baseline great software is the goal.

RAG

LangChain

LangGraph

Next.js

Node.js

PostgreSQL

Docker

AWS

Redis

Microservices

Fastify

Express

MongoDB

Kubernetes

CI/CD

Observability

TypeScript

Prisma

Stripe

Prompt Eng

LangFuse

Vercel

Security

Testing

Performance

UX

Shipping

APIs

GenAI

Full-Stack

DevOps