Open to opportunities · Sydney, AU · Master's @ Macquarie

Hasan Mohammod Tanzir.

AI Engineerthat ships.

I build AI agents, RAG pipelines, and automation systems that work in production. 80+ projects delivered. $70K+ on Upwork.

Upwork profile LinkedIn
Tanzir at sunset
xelloverse
AI Engineer ·LangChain ·LangGraph ·RAG Pipelines ·Multi-agent Systems ·FastAPI ·Python ·GCP ·Docker ·Prompt Engineering ·N8N ·Zapier ·OpenAI API ·Claude API ·Vector Databases ·CI/CD ·Top-rated on Upwork ·AI Engineer ·LangChain ·LangGraph ·RAG Pipelines ·Multi-agent Systems ·FastAPI ·Python ·GCP ·Docker ·Prompt Engineering ·N8N ·Zapier ·OpenAI API ·Claude API ·Vector Databases ·CI/CD ·Top-rated on Upwork ·

$70K+

Upwork Revenue

80+

Projects Delivered

5.0 ★

Client Rating

200+

Students Taught

// about

I'm Tanzir — an AI automation engineer based in Sydney, currently doing my Master's in AI at Macquarie University. Freelancing on Upwork since 2022, building agents and automation systems for clients worldwide.

Most recently at Sequesto BV (Belgium), building a SaaS platform automating enterprise tender workflows. Before that at VRSEN AI, where I cut hallucination rates ~40% with a production OpenAI Assistants integration.

I have a publication in review on natural language generation techniques, was runner-up at the Banglalink Hackathon 2024, and taught Python and web dev to 200+ students as a senior instructor at Codingal.

I like mechanical watches, mechanical keyboards, and systems that don't break at 2am.

// skills

AI & Agents

LangChainLangGraphMulti-agent systemsRAG pipelinesVector databasesPrompt engineering

LLM APIs

Anthropic Claude APIOpenAI Assistants APIOllamaHugging FaceOpen Router

Backend & Cloud

PythonFastAPIGCP (Cloud Run, Functions)AWS (EC2, GPU)DockerCI/CD

Automation

ZapierMakeN8NHubSpotAPI integrationsWeb scraping

// projects

Diamond Swing AI

open source

AI-powered swing trading analysis tool. Processes financial market data with LLMs to generate trade signals and risk assessments.

PythonLLMsFastAPIDocker
github

Tender & RFP Automation

confidential

Full-stack SaaS platform automating enterprise tender workflows. LLM-powered draft generation and review for Sequesto BV.

PythonLangChainGCPCI/CD

AI Cold Calling System

confidential

Scripted AI voice calling system for sales automation. Delivered a 45% increase in client conversion rate.

PythonOpenAIPrompt Engineering

Multi-Agent & RAG Systems

various

80+ automation and AI agent projects on Upwork — RAG pipelines, LangChain integrations, agentic workflow automation, AI chatbots.

LangGraphRAGZapier/Make/N8N

// experience

Fullstack + AI Developer@Sequesto BV
Feb – Dec 2025

Belgian SaaS startup automating enterprise tender and RFP workflows. Owned features end-to-end on Python backend + frontend, integrated LLMs, deployed on GCP.

Software Engineer@VRSEN AI
Jul – Dec 2024

Integrated OpenAI Assistants API into production — cut hallucination rates ~40%. Led AI dev team, managed delivery timelines, all projects shipped on schedule.

AI Agent & Automation Specialist@Upwork (Freelance)
Jan 2022 – Present

Top-rated freelancer, 80+ projects, $70K+ revenue. Multi-agent systems, RAG pipelines, LangChain/LangGraph, automation workflows, AI chatbots.

// let's work together

Not sure if I'm
the right fit?

Don't guess. The AI version of me can answer anything about my skills, experience, and whether I'd be a good match for your role or project.