Mohiuddin Ahmed

MA

Open to opportunities

Mohiuddin Ahmed

@mohiuddinahmed

Senior System Architect and AI product builder specializing in multi-tenant RAG platforms.

What I'm looking for

I’m looking to build and lead production architectures for high-scale multi-tenant SaaS and RAG-based AI products—prioritizing data isolation, low-latency performance, and cost-efficient scaling, while mentoring teams through real-world system design.

I’m a Senior System Architect & AI Product Leader with 15+ years of experience engineering high-scale, multi-tenant SaaS and RAG-based AI platforms. I bridge complex distributed systems with business objectives, focusing on production-grade architectures.

My work emphasizes data isolation, low-latency performance, and cost-efficient scaling. At Tiered Communication Services, Inc., I architected Utilen, a high-performance multi-tenant AI SaaS, implementing a RAG-based knowledge system with Qdrant and AWS S3 to deliver workspace-level data isolation.

I also optimize real-time query processing across distributed systems, reducing retrieval latency for large-scale datasets while maintaining high availability. Beyond AI, I’ve built full-stack experiences for multi-platform products, spearheading social media and video streaming across Web, iOS, and Android.

Recently, I’ve added an educational and mentorship focus as an Adjunct Lecturer at Eastern University, teaching software engineering grounded in real-world system design and AI-driven applications. Previously, as Sr. Software Engineer & CTO at Eleven Media, I led technical roadmaps and backend overhauls to achieve 99.9% uptime and stronger reliability during peak loads.

Experience

Work history, roles, and key accomplishments

EU

Current

Adjunct Lecturer

Current

Eastern University

Mar 2025 - Present (1 year 2 months)

Taught software engineering with an emphasis on real-world system design, scalable architecture, and AI-driven applications. Mentored students in building production-level projects and applying academic concepts in practical environments.

Software Engineering System Design Scalability AI Applications Mentorship Teaching

TI

Current

Senior System Architect

Current

Tiered Communication Services, Inc

Jun 2020 - Present (5 years 11 months)

Architected Utilen, a high-performance multi-tenant AI SaaS, implementing a RAG knowledge system with Qdrant and AWS S3 to deliver workspace-level data isolation for enterprise clients. Optimized real-time query processing and distributed system design to reduce retrieval latency for large datasets while maintaining high availability.

RAG Systems Qdrant AWS S3 PostgreSQL Redis Distributed Systems Docker TypeScript Next.js

EM

CTO & Senior Software Engineer

Eleven Media

Feb 2014 - Jan 2020 (5 years 11 months)

Directed the technical roadmap and architectural overhaul of the DataMine SaaS platform, ensuring 99.9% system uptime and continuous feature delivery for data-driven workflows. Re-engineered backend services using polyglot persistence (MySQL, MongoDB, Redis), improving reliability and database performance during peak loads.

System Architecture MySQL MongoDB Redis Backend Engineering Reliability Engineering SaaS Platforms

Education

Degrees, certifications, and relevant coursework

EB

Eastern University of Bangladesh

Bachelor of Science, Computer Science and Engineering

2010 - 2013

Earned a B.Sc. in Computer Science and Engineering from Eastern University of Bangladesh (2010–2013).

Tech stack

Software and tools used professionally

DigitalOcean

GitHub

React Native

MySQL

PostgreSQL

MongoDB

Node.js

Laravel

Next.js

Redis

iOS

Qdrant

Android

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