Introduction
Work Experience
Studies
Technical skills
Open Source
Certifications
Asia/Karachi
English
Urdu
Hamza Ali
Senior Full-Stack & Agentic AI EngineerI’m a senior full-stack engineer who builds agentic AI products end to end — from the React and Next.js front end a user actually touches to the services and agents running quietly behind it. I like taking ambiguous problems and turning them into reliable, observable systems, and I’ve led small teams (2–4 engineers) with a bias for clean architecture, testing, and code that stays maintainable as it grows.
Backend & distributed systems — my foundation. I build event-driven microservices with Node.js (NestJS), PostgreSQL, MongoDB, Redis, and Kafka, with an eye on idempotency, caching, rate limiting, and observability (OpenTelemetry, Grafana, Prometheus).
Agentic AI — I build real LLM features, not demos: RAG pipelines over vector databases, MCP servers, tool calling and structured outputs, and agentic workflows — with evaluation baked in so I can measure retrieval quality and answer faithfulness rather than guess.
Cloud & delivery — I deploy and operate on AWS and GCP with Docker, Kubernetes, Terraform, and CI/CD. I write weekly about architecture and AI engineering, and I’m open to senior remote roles with strong overlap across US, UK, and EU timezones.
Backend & distributed systems — my foundation. I build event-driven microservices with Node.js (NestJS), PostgreSQL, MongoDB, Redis, and Kafka, with an eye on idempotency, caching, rate limiting, and observability (OpenTelemetry, Grafana, Prometheus).
Agentic AI — I build real LLM features, not demos: RAG pipelines over vector databases, MCP servers, tool calling and structured outputs, and agentic workflows — with evaluation baked in so I can measure retrieval quality and answer faithfulness rather than guess.
Cloud & delivery — I deploy and operate on AWS and GCP with Docker, Kubernetes, Terraform, and CI/CD. I write weekly about architecture and AI engineering, and I’m open to senior remote roles with strong overlap across US, UK, and EU timezones.
Work Experience
Matacs Technologies2024 – Present
Senior Software Architect- Designed and deployed multi-tenant NestJS + GraphQL backend serving 12 client organizations, reducing infrastructure costs by 35% through shared-resource architecture.
- Introduced containerized deployments (Docker + Kubernetes) with full observability stack (Grafana, Prometheus), achieving 99.9% uptime across production services on GCP/AWS.
- Hardened platform security with OAuth 2.0, RBAC, rate-limiting, and secret management — passing third-party security audits with zero critical findings.
- Built AI-powered automation pipelines using RAG, MCP servers, and n8n workflows, automating document processing and client onboarding flows.
GrTech2023 – 2024
Senior Backend Engineer- Delivered 15+ React/NestJS features across MongoDB and PostgreSQL stacks, reducing average API response time from 1.2s to 180ms through query optimization and caching layers.
- Established code review standards and increased test coverage from 25% to 78%, reducing production bugs by 40% quarter-over-quarter.
Creeptalk AIMay 2023 – Dec 2024
Full-Stack Engineer · AI Chatbot Applications (Remote)- Built AI-powered chatbot platform handling 50K+ monthly conversations using MERN stack with GraphQL and Firebase real-time database.
- Shipped real-time messaging infrastructure with Socket.io, supporting 5K concurrent users with sub-100ms message delivery.
Independent (Remote)Nov 2022 – Present
Senior Full-Stack & Agentic AI Engineer- Designed and shipped 20+ production systems for startups across four continents — e-commerce platforms, SaaS products, and AI-powered tools on AWS and GCP, owned end-to-end from architecture to deploy.
- Built applied-AI features — RAG pipelines over vector databases and MCP servers exposing internal tools — with evaluation baked in to measure retrieval quality rather than guess at it.
- Worked async across US, UK, and EU timezones with a bias for clear written communication, documented decisions, and reliable delivery.
Open Source & Community2020 – Present
Maintainer & Technical Writer- Author and maintainer of open-source developer tools, including QueueBolt (a lightweight Node.js job queue on npm), an AI technical- interviewer kit, and a NestJS agent-workflow CLI.
- Author of "From Developer to Architect" newsletter on LinkedIn, publishing weekly on software architecture, AI engineering, and system design.
Studies
Benazir Bhutto Shaheed University LyariB.S. in Computer Science.
Code With MoshProfessional courses in software engineering and web development.
Jonas Schmedtmann – React Mastery (Udemy)Advanced React and frontend architecture.
Technical skills
AI & LLM EngineeringProduction LLM applications, not demos: RAG pipelines over vector databases, MCP servers, tool calling, structured outputs, and agentic workflows — with evaluation built in (retrieval precision, answer faithfulness) so quality is measured, not assumed. Model integrations across OpenAI, Claude, and Gemini.
RAG Pipelines
MCP Servers
Evaluation
Tool Calling
Structured Outputs
Vector DBs
LangChain
OpenAI
Backend & Distributed SystemsNode.js, NestJS, Express, TypeScript, GraphQL, REST, WebSockets. Event-driven microservices with Kafka and Redis Streams; idempotency, caching, rate limiting, and OpenAPI-documented APIs built to stay reliable under load.
TypeScript
Node.js
NestJS
Kafka
GraphQL
FrontendReact, Next.js, and TypeScript — performant, accessible web applications with a focus on Core Web Vitals and clean component architecture. Also ship cross-platform mobile with React Native and Flutter when a project calls for it.
React
Next.js
TypeScript
React Native
Databases & DataMongoDB, PostgreSQL, MySQL, Redis, Firebase, Supabase; Prisma ORM, Mongoose; schema design, query optimization, and data modeling.
MongoDB
PostgreSQL
Redis
Prisma
Firebase
Cloud & DevOpsAWS, GCP, Azure; Docker, Kubernetes, Terraform, Nginx; CI/CD pipelines, infrastructure as code; Grafana, Prometheus, Datadog.
AWS
GCP
Docker
Kubernetes
Architecture & System DesignDistributed systems and event-driven architecture — microservices, domain-driven design, CQRS and event sourcing, API gateway patterns. Reliability by design: idempotency, horizontal scaling, caching, rate limiting, and observability with OpenTelemetry, distributed tracing, Prometheus, and Grafana. Technical leadership of small teams.
Distributed Systems
System Design
Event Sourcing
CQRS
DDD
Observability
Open Source
I build small, well-documented tools that solve one real problem — and publish them. A few I maintain:Interviewer Agent KitPython · FastAPI · React · LiveKit · Tavus
Open-source, resume-driven AI technical interviews — voice or video in the browser. Resume ingestion, LLM question generation, and a real-time interviewer via Tavus (video) or LiveKit (voice).LLM
FastAPI
Voice AI
React
nestjs-agent-workflow-kitTypeScript · CLI · published on npm
Shared agent standards and a skills CLI for NestJS projects. Point any coding agent at one AGENTS.md and it inherits the same engineering standards and capabilities across every repo.AI Agents
NestJS
Developer Tools
QueueBoltTypeScript · published on npm
A lightweight, reliable background job queue for Node.js — retries with exponential backoff, priorities, delayed jobs, dead-letter queues, and pluggable backends (memory, Redis, SQLite). No heavy broker required.Node.js
TypeScript
Job Queue
nestjs-enterprise-kitTypeScript · NestJS · Docker · Kubernetes
A production-oriented NestJS boilerplate built on Clean Architecture, DDD, and CQRS — with observability, RBAC/ABAC, and provider-agnostic payments and storage wired in.NestJS
DDD
CQRS
Certifications
Claude Code for Professional Developers2026
Code with MoshAdvanced usage of Claude Code for professional AI-assisted software development workflows.Build AI-Powered Apps2025
Code with MoshBuilding intelligent applications with LLMs, AI integrations, and modern AI-powered development patterns.Complete SQL Mastery2025
Code with MoshComprehensive SQL mastery — advanced queries, database design, performance optimization, and data management.The Ultimate React Course 20252025
Udemy — Jonas Schmedtmann84-hour comprehensive course covering React, Next.js, Redux, and modern frontend architecture patterns.DevOps - Zero To Hero2025
Train With ShubhamEnd-to-end DevOps covering CI/CD, containerization, Kubernetes, and cloud infrastructure automation.Generative AI For DevOps2025
Train With ShubhamApplying generative AI to DevOps workflows — AI-powered automation, monitoring, and infrastructure management.AWS: Zero To Hero2025
Train With ShubhamComprehensive AWS cloud services — compute, storage, networking, and production deployment strategies.