// Senior Fullstack & AI Engineer

Tohid Haghighi

I design and ship production systems where distributed backend architecture meets applied machine learning. Twelve years turning ambiguous problems into reliable, observable software.

Status Available

12

Years

40+

Shipped

6

Domains

3

ML Models

Technical stack

01 / Dossier

Frontend

ReactTypeScriptNext.jsTailwind

Backend

.NET / C#GoNodePostgresgRPC

AI / ML

LLMsTool CallingRAGVector DB

Realtime & Cloud

SocketClusterKafkaK8sCI/CD

Selected projects

02 / Work
AI SaaS2025

Botino — multi-model AI chatbot platform

A Chatbase-style SaaS: businesses train bots on their own data, with tool calling and switchable multi-model backends.

LLMsTool CallingRAGSaaS
Trading2024

Broker system redesign — realtime buy & sell

Rebuilt order flow for buying and selling with live prices and order books streamed over a SocketCluster cluster.

SocketClusterNodeRealtime
Banking2022

Payment gateway for financial banking

Designed and wrote a secure payment gateway and core banking services handling high-volume transactions.

.NETC#SQL Server
GenAI Platform2021

Retrieval engine for enterprise knowledge

Hybrid RAG pipeline with vector search and grounded citations.

PythonpgvectorFastAPI

Experience

03 / Path
  1. 2023 — Present

    Lead AI Engineer — Botino

    Architect of a multi-model AI chatbot SaaS with tool calling, knowledge training and team workspaces.

  2. 2021 — 2023

    Senior Fullstack Engineer — Brokerage Platform

    Redesigned the broker buy/sell system with realtime market data over a SocketCluster cluster.

  3. 2016 — 2021

    Senior .NET Developer — Financial Banking Systems

    Built core banking services and wrote a payment gateway in .NET for secure, high-volume transactions.

  4. 2013 — 2016

    Software Engineer

    Shipped web applications and backend APIs across several product teams.

// Contact

Let's build something that holds up in production.