Independent engineer · UTC+5 · Global delivery

I turn complex
operations into
calm software.

I design, ship and operate production SaaS end to end — from the data model and API to the web client, mobile app and the server it runs on.

Explore selected systems ↘Start a conversation ↗

LIVE SYSTEM MODEL01 / 05

ARCHITECTURE→PRODUCTION

Select a node to inspect the system.

0⁺production platforms
shipped

0⁺students on one
live platform

0data models in a
solo-built SaaS

0passing tests on
the flagship platform

0⁺years with NL, UK
and US teams

01 — POSITION

Not another pair
of hands. An owner.

Bring me the messy operation: the spreadsheet maze, the fragile permission model, the platform that must work offline, or the product that has to scale across tenants.

I translate loose requirements into a working system, document the decisions, ship it, and stay accountable when it meets production.

4–6h EU/UK overlapEvening US overlapDirect contractorRemote-first

02 — SELECTED SYSTEMS

Proof, not promises.

Eight production stories across education, healthcare, retail, compliance, embedded devices and applied AI.

01 / FLAGSHIP2025 — PRESENT

EDTECH · MULTI-TENANT SAAS

CampusNama

A complete school operating system, architected solo from an empty repository to a live, multi-campus product.

71Prisma models~150backend modules105React screens

TENANT-SAFE CORE

School ASchool BNetwork

Prisma $extends tenant boundary

FeesExamsPayroll

NestJS → PostgreSQL → Nginx / PM2 → Cloudflare

NestJSPrismaReact 19PostgreSQLGemini

Tenant isolation lives in one Prisma query extension across 53 models instead of relying on per-query developer discipline.

An authorization audit closed fail-open access paths with explicit permission semantics verified against real JWTs.

Polled background jobs handle long operations; a lazy scrypt migration upgraded passwords without downtime.

02 / EDUCATION5,000+ STUDENTS

SPECIAL-EDUCATION NETWORK

Hadran Platform

Role-based attendance, behaviour, goals and reporting—replacing spreadsheet progress tracking with structured workflows.

LIVE

NodeMongoDBSocket.IODOCX / PDF

Reusable goal banks and migration scripts connected historical education plans without disrupting live users.

A template-driven engine turns structured goal data into compliant transcripts and parent reports.

03 / THERAPYDAYS → HOURS

HUMAN-IN-THE-LOOP AI

TxPlus

A dual-portal therapy system where AI accelerates quarterly reports without removing clinical control.

Draft→Review→Revise→Approve

React 19TypeScriptZodAI workflow

Explicit workflow states keep therapists and coordinators in control; nothing leaves without sign-off.

Keys and prompt logic stay behind a server-side proxy, away from the browser.

04 / HEALTHCARE~410 SWIFT FILES

OFFLINE-FIRST · NATIVE IOS

AhMChaya

A hospital ward iPad system with offline procedure video, live ward state and a complete media pipeline.

OFFLINEHLScached + ready

SwiftUIAVPlayerExpressWebSockets

Upload, ffmpeg transcode, object storage and signed delivery form a resilient HLS pipeline.

A bespoke iOS cache manager keeps clinical video available without connectivity.

05 / RETAIL20+ BRANCHES

Elevate POS

Points-based, scanner-first POS re-platformed to Node + Socket.IO for live multi-terminal inventory.

Next.jsMongoDBRealtime

06 / COMPLIANCENL CLIENT

RIE Optimaal

Dutch risk-inventory platform spanning a legacy-friendly API, modern web client and Flutter app.

CodeIgniterNext.jsFlutter

07 / LEARNING3 PORTALS + KIOSK

Cursus Optimaal

Multi-tenant LMS with role-composed portals, Expo mobile client and an on-site registration kiosk.

NestJSMongoDBExpo

08 / EMBEDDEDUK CLIENT

Kaelo + Carysil

Connected-device apps spanning Flutter and native iOS, BLE telemetry, GATT control and diagnostics.

FlutterSwiftCoreBluetooth

03 — HOW I WORK

One accountable line
from ambiguity to uptime.

The goal is fewer hidden assumptions, safer decisions and a system the next engineer can understand.

Map the operation

Users, permissions, failure states and business rules before screens.

Design the spine

Data model, tenancy boundary, API contracts and deployment shape.

Ship in slices

Working vertical flows with written decisions and observable behavior.

Own production

Backups, migrations, incident diagnosis and handoff are engineering work.

04 — CAPABILITY MATRIX

Broad enough to ship.
Deep where it counts.

My stack changes with the problem. The through-line is typed systems, explicit boundaries and boring production reliability.

TypeScript · NestJS · Node · Express · Prisma · PostgreSQL · MongoDB · Redis · REST · WebSockets · background jobs

React 19 · Next.js · Vite · SvelteKit · Redux Toolkit · TanStack Query · Tailwind · Radix UI · Zod

Gemini vision · tool-use agents · RAG · server-proxied LLMs · human review workflows · local LLMs · Whisper

SwiftUI · UIKit · Flutter · React Native / Expo · CoreBluetooth · BLE · offline-first sync · AVPlayer / HLS

Hetzner · Nginx · PM2 · Cloudflare · GitHub Actions · GCP · Firebase · Supabase · AWS S3

05YOUR NEXT SYSTEM

Have a difficult product
problem? Good.

Available for selected product builds, system rescue work and long-term engineering partnerships.

asad786mehar786@gmail.com ↗

GitHub ↗LinkedIn ↗+92 309 6024928Gujranwala, Pakistan · PKT / UTC+5

I turn complexoperations intocalm software.

Not another pairof hands. An owner.