Sirin Kolasseri · AI Engineer & Full-Stack Architect

Expertise

Skills & Tech Stack

Deep expertise across the full AI + full-stack spectrum — from LLM orchestration to production infrastructure.

AI Engineering

LLM / GenAI Agentic AI MCP OpenAI API Claude API Ollama FastAPI STT / TTS PyTorch Machine Learning Python Scikit-Learn VectorDB RAG FalkorDB

Backend

Golang Node.js Python / FastAPI REST API GraphQL Microservices MongoDB MySQL Redis PostgreSQL Kafka RabbitMQ JWT / OAuth2 gRPC

Frontend

React.js Next.js Vue.js Angular React Native Tailwind CSS Bootstrap Recharts Vite TypeScript

Infrastructure & DevOps

AWS / EC2 Docker Kubernetes Nginx CI/CD GitLab GitHub Actions SSL / HTTPS Vercel Lambda DynamoDB Selenium / TDD

Work

Featured Projects

Production systems built from zero — not tutorials or side projects.

AI Business Chat Bot

May 2022 – Present

AI / LLM Live Open Source

A production-deployed, full-stack AI chatbot platform for business intelligence — real-time conversational AI, hands-free voice conversation, a 25+ chart analytics dashboard, and 27 ML-powered BI reports with PDF/CSV export. Multi-LLM, multi-language, deployable on-premise or cloud.

Talk mode — sub-500ms voice via OpenAI Realtime API + WebSocket

Multi-LLM routing: Claude / GPT-4o / Groq / Cerebras / Ollama / llama.cpp

25+ analytics charts — RFM, LSTM churn, CLV, cohort, AR aging, EOQ

27 ML-powered BI reports — OLS forecasting, FP-Growth, MLP bad-debt

MCP Tool Architecture — plugs into Claude Desktop, n8n, ChatGPT

FalkorDB knowledge graph + OpenViking semantic memory (~85% token reduction)

Multilingual STT/TTS — English, Arabic, Malayalam, Hindi, Bengali, Urdu

SSE streaming with step-by-step execution visibility

PythonFastAPI React.jsVite OpenAI Realtime APIClaude API GroqOllama FalkorDBfaster-whisper ElevenLabsMCP SSEWebSocket AWS EC2Recharts

▶ Live Demo 🌐 Website

StartPOS — AI-Powered POS & ERP

Jan 2022 – Present

AI / ML Live Open Source

Open-source Point of Sale & ERP system for the Saudi Arabian market with a full AI layer — ask your business anything in plain English or Arabic and get instant answers, live charts, and forecasts. ZATCA Phase 1 & 2 certified for Saudi e-invoicing (Fatoora).

50+ analytics charts + 33 ML-powered BI reports

ZATCA Phase 1, 2 & B2B certified — ECDSA-signed invoices

6-month revenue/expense/profit forecasting with confidence intervals

Customer RFM segmentation, LSTM churn risk, CLV prediction

WhatsApp invoice delivery via Evolution API

Full double-entry accounting · multi-store · multi-warehouse

MCP integration — Claude Desktop, ChatGPT, n8n compatible

Voice mode with multilingual STT/TTS

GolangPython FastAPIReact.js MongoDBRedis Claude APIGPT-4o GroqOllama FalkorDBMCP Bootstrap 5JWT AWS EC2

▶ Live Demo 🌐 Website ⌥ GitHub (Backend) ⌥ GitHub (Frontend)

More Projects

Wolfpack

Nov 2023 – Jan 2024 · Denmark

Denmark's easiest expense-sharing app — available on iOS & Android.

Spring Boot · PostgreSQL · Angular 14 · React Native

Sunburst

Nov 2021 – Oct 2023

Aircraft Maintenance Management System.

Golang · GraphQL · MSSql · Vue.js · Redis · Docker

Pantacor Platform

Nov 2018 – Sep 2020 · London, UK

Linux firmware sharing & deployment platform for IoT devices at scale.

Golang · MongoDB · GraphQL · Kubernetes · Kafka

Haikujam

May 2015 – Oct 2016 · London, UK

Collaborative haiku-writing mobile app with real-time social features.

Yii2 · Node.js · Angular · MySQL · Redis · AWS

Staff Allocation Solution

2013 · Florida, USA (2amigos)

Staff utilization & profitability tracking platform.

Yii1 · Node.js · MySQL · Redis · TDD

Engineering Doc Control System

2014–2015 · Kazakhstan

Document control system for construction companies.

Yii2 · Node.js · Angular · MySQL

Career

Work Experience

13 roles across US, EU, and GCC — predominantly remote since 2013.

Technology Consultant Startup Tech. Consultancy LTD Remote Feb 2024 – Present · London, UK

Golang · React.js · Python · FastAPI · LLM · GenAI · Agentic AI · MCP · Ollama · AWS

Full Stack Developer N30 Aps Remote Nov 2021 – Jan 2024 · Copenhagen, Denmark

Golang · Node.js · MongoDB · MSSQL · Vue.js · React.js · AWS

Technology Consultant Startup Tech. Consultancy LTD Remote Aug 2021 – Oct 2021 · London, UK

Golang · Node.js · MongoDB · Vue.js · React.js · AWS

Technology Consultant 2amigos Remote May 2021 – Jul 2021 · Florida, USA

PHP · Yii2 · MySQL · MongoDB · Vue.js · React.js · AWS

Sr. Software Engineer Pantacor Remote Nov 2018 – Sep 2020 · London, UK

GoLang · GraphQL · MySQL · MongoDB · Kubernetes · Kafka · Docker

CTO Nintriva Jan 2017 – Oct 2018 · Kochi, India

GoLang · GraphQL · PHP · Yii2 · MySQL · MongoDB · AWS

Lead Web Engineer Haikujam Remote May 2015 – Oct 2016 · London, UK

PHP · Yii2 · Node.js · MySQL · MongoDB · Redis · AWS

Technology Consultant 2amigos Remote Mar 2013 – Aug 2013 · Florida, USA

PHP · Yii1 · Node.js · MySQL · MongoDB · Redis

Social Proof

What Clients Say

Recommendations from LinkedIn — US, EU, and UK clients.

"Sirin is a very skilled and experienced Senior Full Stack Engineer with a great grasp of architecture patterns such as Micro Services. Sirin's delivery mindset is also exceptional."

Michael Dipo Christensen

Co-Founder & CEO · N3O Aps, Denmark

"During Sirin's time at Pantacor he excelled in tackling new problems and finding quick but clean solutions, as well as innovative architecture ideas for our fast growing backend infrastructure."

Ricardo Mendoz

Co-Founder & CEO · Pantacor Ltd, UK

"Sirin is a rare find — someone who really cares about work and customers. Trust Sirin to make things happen!"

Abitha Padmanabhan

Sr. Software Dev Manager · Amazon, USA

"Sirin is an excellent developer — his team offers top-quality software development covering a wide range of languages & frameworks. Responsive & personable."

Tom Yoritaka

VC Investor & COO · COPRESENCE, London

"Sirin has repeatedly proven to be a reliable coworker. He has always been available, effective and fast when solving problems."

Aníbal Portero Hermida

Embedded Software Engineer · Pantacor, Spain

"Sirin and his team are great to work with — they produce the goods and deliver the software on time and in line with the client's expectations."

Mike Overton

Superintendent · Water Corporation, Australia

Open Source