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Dharun Sivakumar

@dharunsivakumar

Message

I'm building AI developer tools and reliable B2B SaaS backend platforms.

India

Message

I'm building OZ at HiringBae, a version-aware context engineering platform that gives coding agents accurate documentation and project context. I design MCP-based tools, retrieval workflows, persistent agent memory, and LLM orchestration across OpenAI, Claude, Gemini, Qwen, and Fireworks.

I've also shipped and supported B2B invoicing SaaS at LettFaktura and backend platforms at Anunta Technologies, cutting configuration time to under five minutes and deployment workflows to under two hours. Across Node.js, TypeScript, React, Python, Go, PostgreSQL, Redis, and RabbitMQ, I build production APIs, asynchronous systems, and developer tooling.

Experience

Work history, roles, and key accomplishments

Current

Co-Founder & Founding Engineer

Current

HiringBae

Jan 2025 - Present (1 year 8 months)

Lead architecture and implementation of OZ, a version-aware context engineering platform for coding agents. Designed ingestion and retrieval workflows, BaeMemory, and LLM orchestration workflows across multiple AI models.

TypeScript React PostgreSQL Python Go Redis RabbitMQ REST APIs RAG MCP Agentic AI Orchestration OpenAI Claude Gemini Qwen

Current

Software Engineer - Platform & Full Stack

Current

LettFaktura

Jan 2025 - Present (1 year 8 months)

Build and maintain production features for a commercial B2B invoicing SaaS platform. Work across Node.js/Fastify, React, PostgreSQL, Sequelize, Redis, RabbitMQ, and Puppeteer on customer-facing workflows, APIs, and background processing.

Node Fastify React PostgreSQL Sequelize Redis RabbitMQ Puppeteer REST APIs Performance Optimization

Software Engineer

Anunta Technologies

Aug 2023 - Apr 2025 (1 year 8 months)

Developed backend features and optimized legacy workflows, reducing client configuration time from 1-2 hours to less than 5 minutes. Built microservice-based backends for Azure Virtual Desktop monitoring and a build/patch deployment platform.

Python fastAPI PostgreSQL Redis RabbitMQ Go MongoDB Azure REST APIs Microservices Gin Protobuf Sqlc React Redux toolkit WMI

Freelance Software Engineer

Learning Room Education

Jan 2023 - Jun 2023 (5 months)

Built backend features for student applications, event registrations, and authentication workflows, and developed approximately 70% of the application's frontend.

React Django MongoDB Firebase Authentication