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Hi, I'm Shumail
I automate the work that's bleeding you dry.

View my work
About me

The Problem I Solve

A quick look at how I work and what I've shipped.

Your team is drowning in repetitive work. Customer support is eating 40 hours a week. Payments are scattered across three systems. Bookings are still coming in via WhatsApp. You need software that actually works, not someday, but now.

I build complete products from scratch: web, mobile, admin dashboard, payments, AI automation, everything. I ship fast and I don't hand off pieces to other people.

I'm Shumail Hassan, a full-stack product engineer who specializes in building AI-powered SaaS platforms and automation systems for founders who are tired of workarounds.

I've eliminated support queues with AI, automated contract management for agriculture companies, built payment systems handling crypto and fiat simultaneously, and created booking platforms that replaced manual scheduling entirely.

What I've learned: founders don't have technology problems. They have revenue problems. They lose customers because support is slow. They lose money to manual processes. They can't scale because everything is duct-taped together.

I fix those problems by building the entire stack in one engagement.

Where I've worked
  • Conrad Labs

    Conrad Labs

    Full Stack Software Engineer

    Jun 2026 – Present

  • Motive

    Motive

    Software Engineer (SDET)

    Jun 2025 – May 2026

  • Payback

    Payback

    MERN Developer

    Jan 2025 – Jun 2025

  • GCS Pvt Ltd

    GCS Pvt Ltd

    Web Developer

    Jun 2024 – Aug 2024

  • Anata Digital

    Anata Digital

    Product Designer

    Aug 2020 – Sep 2022

Selected work

Products I've built that drive revenue

Where design, engineering and product came together.

01 / 09AI · Customer Support

Opsly: Customer Support That Actually Works

Most businesses are drowning in support tickets. Your team spends 80% of their day answering the same questions over and over. It is killing retention and morale.

I built an AI support system that reads your company's policies and documents, then answers customer questions automatically, in real time, over voice calls, grounded in your actual policies. No more waiting 3 days for a response. No more losing customers because support is overwhelmed. It handles the easy 80% of tickets automatically. Your team focuses on the 20% that actually need a human.

AI / Full-Stack Engineer

  • RAG
  • LLMs
  • Vector Search
  • Voice AI
  • REST APIs
0hrs → secResponse time
0%Support costs reduced
0%Tickets automated
02 / 09SaaS · Billing

Billwise: Subscription Billing for Modern SaaS

You are running a multi-tenant SaaS and billing is held together by webhooks nobody trusts. Failed payments go unnoticed. Prorated upgrades are calculated by hand. You do not actually know your MRR today.

I built a multi-tenant subscription management platform that turns messy recurring billing into structured, verified records. Hosted checkouts that convert, automated dunning with exponential-backoff retries on background workers, idempotent Stripe webhook handling, and strict per-tenant data isolation. MRR, active subscribers, and prorated upgrades are tracked live in the dashboard, with zero manual calculations.

Full-Stack / Billing Engineer

Billwise: Subscription Billing for Modern SaaS — screen 1
Billwise: Subscription Billing for Modern SaaS — screen 2
  • Next.js
  • Node.js
  • PostgreSQL
  • Stripe
  • BullMQ
  • Redis
  • Multi-tenancy
0%Billing automated
0Retries before churn
0Manual MRR math
03 / 09Booking · Platform
View

Bookd: Replace Your Entire Booking Operation

Your business is booked via phone calls, emails, and WhatsApp. No visibility into capacity. Double bookings every week. Customers calling back to confirm. You are losing revenue because people book your competitors who have online booking.

I built a full booking platform: customers book online instantly, your team has complete visibility into availability and capacity, payments process automatically, reminders go out automatically, no-shows drop 40%. It works for salons, gyms, restaurants, clinics, any service business that takes reservations.

Full-Stack Developer

Bookd: Replace Your Entire Booking Operation — screen 1
Bookd: Replace Your Entire Booking Operation — screen 2
  • React
  • Node.js
  • Express
  • Flutter
  • MongoDB
  • Stripe
0%Bookings increased
0%Manual work eliminated
0%No-shows reduced
04 / 092025Fintech · Loyalty
View

Payback: Stop Losing Customers to Competitors

Your customers buy once and disappear. Your competitors have cashback programs and loyalty is working for them. You are losing repeat revenue because you have no reason for customers to come back.

I built a cashback and rewards platform that makes loyalty visible, incentivizes repeat purchases, and tracks behavior. Customers see their points. They come back.

Full-Stack Developer

Payback: Stop Losing Customers to Competitors — screen 1
Payback: Stop Losing Customers to Competitors — screen 2
  • React
  • Node.js
  • TypeScript
  • SQL Server
  • AWS
0%Retention increased
0%Avg order value up
0xRevenue per customer
05 / 09Agency · Website
View

Anata Digital: Web That Converts

Your agency does great work but your website does not reflect it. You are losing leads because the site looks dated and does not tell the story.

I built a responsive, modern marketing website that shows work beautifully, loads instantly, and converts visitors to leads. Design and engineering working together.

Frontend Developer

Anata Digital: Web That Converts — screen 1
Anata Digital: Web That Converts — screen 2
  • JavaScript
  • Responsive UI
  • Web Performance
0%Lead volume increased
06 / 09AI · Mobile

ChatOpenAI: AI Assistant Your Customers Will Pay For

You want to offer AI to your users but you do not have the engineering team to build it. You need to launch fast.

I built a production-ready AI chat app that works across web and mobile, handles real conversations, supports multiple languages, processes images, and monetizes through subscriptions and credits. Launch in weeks, not months.

Mobile / Full-Stack Developer

ChatOpenAI: AI Assistant Your Customers Will Pay For — screen 1
ChatOpenAI: AI Assistant Your Customers Will Pay For — screen 2
ChatOpenAI: AI Assistant Your Customers Will Pay For — screen 3
  • OpenAI API
  • OAuth
  • In-App Purchases
07 / 09Mobile · Navigation

MountainBike: GPS Navigation for Offline Riding

You need offline GPS navigation that does not drain battery and works in remote areas where cell service is dead.

I built a GPS navigation app that works completely offline, tracks real-time stats (speed, altitude, distance, ETA), and lets users plan routes without internet. For outdoor apps, this is table stakes.

Mobile Developer (Flutter)

MountainBike: GPS Navigation for Offline Riding — screen 1
MountainBike: GPS Navigation for Offline Riding — screen 2
  • Flutter
  • OpenStreetMap
  • GPS
  • Offline Maps
08 / 09Agri · Mobile

AgriEnergy: Lease Management Platform

Agricultural land is rented via handshakes and spreadsheets. Disputes over payments. No visibility into who owes what. Rent reviews are manual chaos.

I built a platform that digitizes the entire lease lifecycle: agreements are uploaded, rent is tracked automatically, payments are recorded, proof-of-payment is logged, disputes are prevented.

Mobile Developer

AgriEnergy: Lease Management Platform — screen 1
AgriEnergy: Lease Management Platform — screen 2
  • Mobile App
  • REST APIs
  • Push Notifications
09 / 09Android · Media

ImageBuilder: Motion Detection and Video Capture

You need to monitor your facility for intrusions or unusual activity. Manual monitoring is expensive and unreliable.

I built a native Android app that runs motion detection in the background, captures images when motion is detected, and auto-uploads videos to your server. Configurable sensitivity. No cloud dependency.

Android Developer

ImageBuilder: Motion Detection and Video Capture — screen 1
ImageBuilder: Motion Detection and Video Capture — screen 2
  • Android (Native)
  • Java
  • FTP
What you get

What clients actually hire me for

I build complete products, not components. You get:

Full-stack architecture (backend, frontend, mobile, admin dashboard)
AI automation baked in (RAG, LLMs, voice agents)
Payments and subscriptions handled
Deployable in 4–8 weeks
One engineer, one vision, one coherent product

I do not hand off to other people. I do not disappear mid-project. I stay until it works.

The process

How this actually works

That is the entire process.

01

We talk about your real problem.

Not the technical one. The business one. What is costing you money? What is stopping you from scaling? What manual process is eating your team?

02

I scope the build.

What needs to happen. Timeline. Tech. Cost. Honest.

03

I build it.

Web, mobile, dashboard, payments, AI if needed. One person. One vision. Shipped.

04

It works.

You measure: revenue up, costs down, team capacity freed up, customers staying longer.

Tech stack

The tools behind my work

A pragmatic, type-safe toolkit for shipping fast, resilient products from database to pixel.

Node.jsNode.jsEExpressDjangoDjango.NET.NET CoreReactReactNNext.jsVVue.jsFFlutterReactReact NativeNNative AndroidRRAG PipelinesLLLM IntegrationVVoice AIVVector SearchOOpenAIMongoDBMongoDBPostgreSQLPostgreSQLMySQLMySQLRedisRedisAWSAWSDockerDockerKubernetesKubernetesVercelVercelRenderRenderSStripePPayPalSSolanaGitGitGitHubGitHubJiraJIRAFigmaFigmaClaudeClaudeVS CodeVS Code

Backend

  • Node.jsNode.js
  • EExpress
  • DjangoDjango
  • .NET.NET Core

Frontend

  • ReactReact
  • NNext.js
  • VVue.js

Mobile

  • FFlutter
  • ReactReact Native
  • NNative Android

AI/ML

  • RRAG Pipelines
  • LLLM Integration
  • VVoice AI
  • VVector Search
  • OOpenAI

Databases

  • MongoDBMongoDB
  • PostgreSQLPostgreSQL
  • MySQLMySQL
  • RedisRedis

Infrastructure

  • AWSAWS
  • DockerDocker
  • KubernetesKubernetes
  • VercelVercel
  • RenderRender

Payments

  • SStripe
  • PPayPal
  • SSolana

Tools

  • GitGit
  • GitHubGitHub
  • JiraJIRA
  • FigmaFigma
  • ClaudeClaude
  • VS CodeVS Code
What I use daily
VS Code

VS Code

Editor of choice

Antigravity

Antigravity

Agentic IDE

Claude

Claude

AI pair programmer

Jira

JIRA

Issues & planning

Figma

Figma

Design & prototyping

Open to workAvailable for projectsOpen to workAvailable for projectsOpen to workAvailable for projectsOpen to workAvailable for projectsOpen to workAvailable for projectsOpen to workAvailable for projectsOpen to workAvailable for projectsOpen to workAvailable for projectsOpen to workAvailable for projectsOpen to workAvailable for projectsOpen to workAvailable for projectsOpen to workAvailable for projects
Available for new projects

Ready to fix your problem?

You have a problem. Your team is drowning. Revenue is leaking somewhere. Manual work is eating your margin. I build the software that fixes it.

Get in touch