// File: portfolio/index — last touched 24.04.2026

I build quiet,
well-made software
for the messy edges
of AI.

Start a conversation → Read the casebook or press K for the index

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Currently

Head of Development @ Sulus.ai

(Apr 2026 →)

Based

Dhaka, BD · UTC+6

Available for

Fractional architecture,

AI platform advisory,

MCP / voice-AI builds

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Ten years of shipping. Mostly in the quiet hours before standup.

MCP server development RAG & vector search Voice AI infrastructure Multi-tenant SaaS n8n orchestration Claude & OpenAI APIs Team leadership Laravel · Vue · NestJS Supabase · Pinecone MCP server development RAG & vector search Voice AI infrastructure Multi-tenant SaaS n8n orchestration Claude & OpenAI APIs Team leadership Laravel · Vue · NestJS Supabase · Pinecone

§ 01 Selected work 2019 — 2026

case study

Platform architecture

Sulus.ai

2023—26

White-label, multi-tenant SaaS for AI voice agents. Reseller model, Pinecone KB, n8n orchestration, Claude API.

LaravelVuePineconen8nGHL

case study

Government procurement

eDP

2019—23

Defense procurement platform for Bangladesh Ministry of Defense (DGDP). Microservices, high-security, Oracle DB.

JavaSpring BootReactOracleRedis

Meeting summaries, action items, scope generation. Yelp-webhook leads auto-answered by an AI agent.

LaravelNestJSOpenAISlackYelp API

Personal project

LearnWithAI.BD

2025

A Bangla-first AI programming mentor for Bangladeshi developers. Waitlist beta shipped.

LaravelVueInertiaClaude API

Full project index

§ 02 Working with

Founders shipping AI

You have a working prototype and need it to survive real customers. I join for 3—6 months and leave the codebase sturdier than I found it.

Agencies & studios

White-label AI voice, MCP connectors, n8n orchestration for client work. I've shipped reseller SaaS end-to-end and know where the sharp edges are.

Teams of one-too-few

Fractional Head of Development — architecture, code review, hiring, and the occasional on-call. Remote, calm, documented.

§ 03 whoami

raju@studio:~$ whoami --long

// profile.txt
name : Raju Rayhan
role : Platform architect · AI engineer · team lead
experience : 10+ years production SaaS
focus_2026 : MCP servers, voice AI, RAG, multi-tenant SaaS
team : distributed, async, document-first

raju@studio:~$ availability --next 90d
✓ Taking 1 new engagement · start Q3 2026

I started writing software in 2016 on small business tools for clients I never met in person. A decade later I mostly build AI platforms — but the craft is the same. Get the boring bits right, and the clever bits get to shine.

Read the long version

I build quiet, well-made software for the messy edges of AI.

I build quiet,
well-made software
for the messy edges
of AI.