Parvej Shah is a Software Engineer & AI Systems Developer based at the University of Dhaka, Bangladesh. He builds production AI voice pipelines, high-concurrency full-stack systems, and real-time infrastructure, currently working with CoderVai.

What is Parvej Shah known for technically?

Parvej Shah is known for engineering AI voice response pipelines under 1.8 seconds using neural VAD, streaming STT/TTS, and WebRTC/SIP; designing deterministic multi-agent FSMs to replace non-deterministic LLM orchestration; and building idempotent payment webhook systems for bKash and Nagad at production scale.

Where is Parvej Shah based and is he available for remote work?

Parvej Shah is based in Dhaka, Bangladesh and is a software engineering student at the University of Dhaka. He is available for remote engineering contracts and collaborations worldwide.

What companies has Parvej Shah worked with?

Parvej Shah has worked on production systems for CoderVai (competitive programming LMS), Minions.AI (AI voice telephony), GenMorphics AI (enterprise workforce management), MathPro Academy (EdTech platform), SellerVai (conversational commerce), Badhan Blood Network (emergency donor PWA), and CPRBD at University of Dhaka.

Software Engineer & AI Systems Developer

From architectureto productionto scale.

I design and build production AI voice pipelines, high-concurrency backend infrastructure, and full-stack web products that load fast and feel effortless.

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Trusted by 12+ clients

20+

projects shipped

<24h

response time

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years experience

Available for work

Dhaka, Bangladesh · Remote

My Core Expertise

From high-concurrency backends to polished interfaces — engineered without bloat.

Every build is measured against three things: latency, reliability, and room to grow. No bloat, no shortcuts — just work that lasts.

Core Services Offered

Full Stack Systems & Web Apps

End-to-end web applications and high-concurrency backends — clean architecture, type-safe APIs, and code that stays maintainable long after launch.

Voice AI & LLM Infrastructure

Sub-second WebRTC voice pipelines, deterministic multi-agent state machines, and low-latency RAG systems tailored to business workflows.

Performance & Data Architecture

Zero-CLS rendering, sub-15ms vector search, Redis caching, and resilient database design — tuned until every interaction feels instant.

Years of hands-on full-stack development experience

20+

Products & websites designed, built, and shipped

10+

Technologies mastered across the modern stack

100%

On-time delivery — and clients who come back

How I Work

A clear path from first idea to launched product.

A focused process keeps the work calm, fast, and measurable: first we clarify what matters, then we design, build, and launch without losing sight of the business goal.

Discover

Define the audience, product goal, must-have flows, and the smallest scope worth launching.

DeliverableScope & roadmap

Design

Shape the experience with clear content hierarchy, conversion paths, and responsive interface details.

DeliverableUI & prototype

Build

Develop the product with maintainable architecture, fast pages, and practical admin workflows.

DeliverableProduction code

Launch

Ship with QA, deployment support, performance checks, and a clear plan for the next iteration.

DeliverableLive product

Selected Projects

Crafting scalable digital products that perform.

Real products with real users — each one pairing thoughtful UX with production-grade engineering that holds up in the wild.

Minions.AI 24/7 AI Voice Dispatcher & Speed-to-Lead Platform

Flagship case study

Next.js (App Router)TypeScriptRetell AI (WebRTC / SIP)Gemini 2.0 Flashn8n Workflow AutomationRedis In-Memory Cache

Minions.AI

A 24/7 AI voice front office and content engine for trade and service contractors. Powered by Retell AI telephony, Gemini 2.0 Flash (sub-250ms TTFT, 96% cost reduction), n8n Redis slot caching (dropping CRM delay from 850ms to 24ms), and a deterministic multi-agent state machine.

Contractors handle 100% of inbound calls 24/7 with zero added front-office headcount.

Client: Minions.AI
Role: Full-Stack & AI Voice Engineer
Timeline: 2025 – Present

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GenMorphics AI

Full-lifecycle enterprise workforce management platform for GenMorphics AI Solutions. Coordinates domain specialists across LLM SFT & RLHF data pipelines with digital NDA compliance, Microsoft Azure AD SSO, consensus QA validation, and automated payroll.

Onboarding friction dropped by over 60% via corporate SSO.

Next.js (App Router, Turbopack)TypeScriptNextAuth.js (Azure AD & Google SSO)PostgreSQL (Prisma ORM)Supabase Row Level Security (RLS)Cloudflare R2 (Presigned URLs)Tailwind CSSReact Query

SellerVai

Multi-modal conversational commerce platform for online merchants in Bangladesh. Combines FastAPI, PGVector with FastEmbed, Gemini Vision (for product photo recognition), DeepSeek in Banglish, and a 7-second Message Debouncer across Messenger, WhatsApp, and Instagram.

Duplicate bot responses were completely eliminated (-68.7% noise reduction).

FastAPI (Python, Async)Next.js (App Router)PostgreSQL + PGVectorFastEmbed (multilingual-e5-small)Gemini Vision APIDeepSeek via LangChain / LangGraphMeta Graph API (Messenger, WhatsApp, IG)Telegram Bot APISQLAlchemy (Async)

MathPro Academy

Online mathematics coaching platform for JSC, SSC, and HSC students across Bangladesh. Features server-side KaTeX formula rendering in React Server Components (0 CLS, 0kB JS), TipTap LaTeX curriculum authoring, and idempotent SSLCommerz / MFS payment fulfillment for 4,000+ students.

Zero Cumulative Layout Shift (CLS 0.00) across all formula-heavy lecture pages, saving 180KB+ client JS per page load.

Next.js (App Router, Turbopack)TypeScriptReact Server Components (RSC)KaTeX SSR (HTML + MathML)TipTap Rich-Text EditorSSLCommerz Payment Gateway (bKash/Nagad)PostgreSQL (Prisma ORM)Tailwind CSS

Codervai CP Platform

Competitive programming training platform for BUET CSE alumni and Googlers at Codervai. Timed module unlocking keeps 2,000+ students on a shared learning pace. Atomic PostgreSQL upserts handle streak tracking without race conditions when thousands of students submit near midnight.

The platform enrolled over 2,000 students across training cohorts.

Next.jsReactTypeScriptTailwind CSSNode.jsPostgreSQLPrisma ORMHLS Video Streaming

Next Project

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About Me

12+people trust my work

Developer driven by purpose and precision.

Great software isn't just shipped — it's considered. Every decision, from the database to the last pixel, should serve the people using it.

Parvej Shah — Software Engineer & AI Systems Developer, IIT DU

AI & Automation — Sub-second WebRTC voice pipelines, deterministic FSM orchestration
Full-stack depth — Next.js App Router, TypeScript, Python FastAPI, PostgreSQL & Redis
Engineering foundation from IIT, University of Dhaka

Let's Work Together

Tech Stack

A battle-tested stack for production systems.

Next.js

TypeScript

React

Python

Node.js

PostgreSQL

Prisma

Redis

Tailwind CSS

shadcn/ui

Docker

Vercel

Git

Figma

4.9

Trusted feedback from real clients

Ready to build something people remember?

Bring a polished brief or a napkin sketch — both work. Tell me where you want to go, and I'll map the fastest route to a product your users will love.

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Client Feedback

Kind words from the people I've built with.

Parvej engineered our entire online coaching platform — from LaTeX formula rendering to payment gateway integration. The performance is flawless and our 4,000+ students love the speed.

Abdul Aziz

Founder, MathPro Academy

Parvej built our sub-1.4s voice pipeline and Redis slot cache. His architectural choices dropped our CRM latency from 850ms to 24ms and cut our telephony costs by over 70%.

Minions.AI Team

Engineering Lead, Minions.AI

Minions.AISellerVaiMathPro AcademyCodervaiUniversity of DhakaGenMorphics AILeadswaveMinions.AISellerVaiMathPro AcademyCodervaiUniversity of DhakaGenMorphics AILeadswave

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