Available for freelance & full-time work

Hi, I'm Muhammad Siddiq.
I build products that ship and scale.

Fullstack engineer & data analyst with 6 years across fintech, e-commerce and government. I've built payment systems, marketplace features, data pipelines and national-scale platforms, and I also design and ship mobile apps and SaaS products end to end.

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Muhammad Siddiq
6 yrsexperience
4apps built
Web + MobileReact · Flutter · NestJS
6years building production software
4apps designed & built end to end
$500K+monthly payments through a gateway I integrated
50,000+active users on a wallet I architected

My products

Apps I design, build and ship

Apps I take from idea and design to backend, mobile apps, CI/CD and store releases.

Productivity
Android · iOS · Chrome · Windows

OathLock

An app and website blocker you can't back out of. Pick what distracts you, set a timer, take the oath.

  • Flutter
  • Kotlin
  • Swift
  • Chrome Extension (MV3)
Read case study
Health
Android · iOS · Web

Palna

Every feed, nap and vaccine, in your language. A baby tracker made for Pakistani families.

  • Flutter
  • Supabase
  • PowerSync
  • SQLite
Read case study
Developer tools
Android · iOS

API Toolbox

Your API client, in your pocket. A native mobile REST and GraphQL client with Postman-style collections, environments and a secrets vault.

  • Flutter
  • Dart
  • Firebase Auth
  • Cloud Firestore
Read case study
SaaS
Web

ToolBox

Four productivity tools, one login, one subscription: PDF conversion, email campaigns, SEO audits and bulk screenshots.

  • Next.js 16
  • React 19
  • TypeScript
  • Tailwind CSS v4
Read case study

Professional work

Built for the teams I've worked with

GovTech
Rayn Group

4RF Disaster Recovery Platform

A national disaster recovery platform for Pakistan's Ministry of Planning & Development, from provinces down to field officers.

  • NestJS
  • React
  • Flutter
  • PostgreSQL
Read case study
Fintech
Retailo Technologies

Payments Wallet

A customer wallet for order payments and rewards, used by 50,000+ active B2B retail customers.

  • React
  • React Native
  • NestJS
  • MySQL
Read case study
Payments
Retailo · Grocer Apps

Payment Gateway Integrations

SADAD for Saudi users, Easypaisa for Pakistan and 2Checkout for cards: millions in yearly volume.

  • SADAD
  • Easypaisa
  • 2Checkout
  • NestJS
Read case study
E-commerce · Data
Droppe

Marketplace Features & Analytics

Marketplace features and a DBT + BigQuery analytics layer for a Helsinki-based B2B marketplace.

  • React
  • Node.js
  • DBT
  • BigQuery
Read case study
AI / ML
Grocer Apps

Recommendations & Fraud Detection

Personalised recommendations on AWS Personalize and fraud prevention with AWS Fraud Detector.

  • AWS Personalize
  • AWS Fraud Detector
  • ElastiCache
  • Redis
Read case study
Growth
Grocer Apps

Grocer Club & Analytics

A subscription programme, CleverTap personalisation and executive dashboards for an online grocer.

  • Laravel
  • MySQL
  • PostgreSQL
  • Redash
Read case study

Experience

Where I've worked

  1. Mar 2026 – PresentIslamabad, Pakistan

    Fullstack Developer @ Rayn Group

    • Architecting the 4RF national disaster recovery platform for the Ministry of Planning & Development.
    • Built 25+ modules for project management, progress tracking, grievances and funding pledges.
    • Designed the RBAC system, the PostgreSQL/TypeORM data model with audit trails, and the Dockerised infrastructure.
  2. Apr 2023 – Feb 2025Helsinki, Finland (Remote)

    Fullstack Developer / Data Analyst @ Droppe

    • Shipped a saved-products feature used by 10,000+ marketplace users.
    • Integrated the Google Retail API carousel, which raised product upsell by 15% in its first quarter.
    • Built DBT + BigQuery reporting and microservice APIs for data pipelines serving 100,000+ daily users.
  3. Mar 2022 – Apr 2023Islamabad, Pakistan

    Fullstack Developer @ Retailo Technologies

    • Integrated the SADAD and Easypaisa payment gateways and architected the customer wallet.
    • Achieved a 200% performance gain by batching calls and removing redundant API and DB calls.
    • Launched 10+ features across web and mobile while the user base doubled.
  4. May 2020 – Mar 2022Lahore, Pakistan

    Fullstack Developer / Data Analyst @ Grocer Apps

    • Launched the Grocer Club subscription and the EasyPaisa mini app.
    • Built the AWS Personalize recommender and set up AWS Fraud Detector.
    • Created executive dashboards in Redash, including a stock-movement dashboard that improved inventory turnover by 25%.

Toolkit

Skills & technologies

Frontend & Mobile

  • React
  • Next.js
  • Vue.js
  • TypeScript
  • Flutter
  • React Native
  • Tailwind CSS

Backend

  • Node.js
  • NestJS
  • Laravel / PHP
  • REST
  • GraphQL
  • TypeORM
  • BullMQ

Data

  • PostgreSQL
  • MySQL
  • MongoDB
  • Redis
  • BigQuery
  • DBT
  • Redash

Cloud & DevOps

  • AWS
  • Google Cloud
  • Supabase
  • Firebase
  • Docker
  • Cloudflare
  • CI/CD

Education

BSc Computer Engineering

NUST, Islamabad · 2020

Domains

Fintech and e-commerce, B2B and B2C, plus GovTech, health and productivity apps. I focus on inventory management, credit dashboards and order management systems.

Let's build something together.

I'm open to freelance projects and full-time roles. The fastest way to reach me is email.

msiddiq17328@gmail.com