M. Zaryab Rafique

Taking on select freelance work

Muhammad Zaryab Rafique · Full Stack Software EngineerI turn ideasinto softwarepeople rely on.

I'm a full stack software engineer. For five years I've built websites, mobile apps, desktop apps and the systems behind them, taking each one from first idea to launch.

Right now I'm a core engineer at Walee Technologies, building WireFluid, a blockchain network, along with its explorer and web wallet. You work with one engineer who owns the entire build, secures it from day one, and ships software that stays fast and dependable as your business grows.

Start a projectSee selected work
Currently
Walee Technologies, on WireFluid
Previously
InvoZone, Sruplex, COMSATS Software House
Builds
Backend, web, mobile, desktop & blockchain
Based in
Lahore, Pakistan

(01)  What I build

One engineer, the whole product.

I can own a product from the database schema to the app on your phone, so nothing gets lost between teams.

  1. 01

    Backend & APIs

    Services that keep state, and money, correct under load.

    BuiltDistributorPro's Node.js and PostgreSQL backend, and the WireFluid chain itself, written in Go.

    Node.js · NestJS · Go · PostgreSQL · REST · GraphQL

  2. 02

    Web apps

    Fast front ends, dashboards and admin panels.

    BuiltWireFluid's block explorer and web wallet, MapRepute, and the DistributorPro web console.

    Next.js · React · Vue.js · Angular · Tailwind

  3. 03

    Mobile apps

    Native Android and cross-platform apps, built to stay fast.

    BuiltRukuh Prayer Times, Bubble Browser, and DistributorPro's Android app for order bookers in the field.

    Kotlin · Jetpack Compose · Java · React Native · Firebase

  4. 04

    Desktop apps

    Small, quick cross-platform desktop software.

    BuiltMicroCylo, an offline LPG distribution app in JavaFX, and Tauri apps for InvoZone clients with a Rust core.

    Java · JavaFX · Tauri · Rust

  5. 05

    Blockchain

    Chains, smart contracts, wallets and tokenisation.

    BuiltThe WireFluid Layer 1, a Substrate NPoS chain, Hyperledger Fabric workflows, and five Stellar client products.

    Solidity · Rust · Cosmos SDK · EVM · Stellar

  6. 06

    AI & automation

    LLM features and workflow automation inside real products.

    BuiltMapRepute's review insights with Gemini, and ChainTrust AI's risk engine.

    OpenAI · Gemini · Claude · n8n · Make

  • Next.js
  • NestJS
  • Kotlin
  • Tauri
  • Solidity
  • PostgreSQL
  • React Native
  • Cosmos SDK
  • Go
  • Rust
  • Vue.js
  • AWS

(02)  Selected work

Products I've built end to end.

A blockchain with its explorer and web wallet, and a run of client products on Stellar. All taken from spec to launch.

01Layer 1 chain · Explorer · Web wallet

WireFluid

A Cosmos SDK chain with full EVM compatibility, so Solidity contracts and standard Ethereum tooling run on it unchanged, alongside native Cosmos modules.

  • Enabled Solidity contracts and the Ethereum JSON-RPC surface, so wallets, Hardhat and Ethers.js work out of the box.
  • Launched and maintain the public testnet (wire-1) and devnet (wire-2), used by internal products and external developers.
  • Built the block explorer and web wallet in Vue.js: blocks, transactions, accounts and validators across both networks.
Role
Core engineer
Company
Walee Technologies
Stack
Go · Cosmos SDK · CometBFT · EVM · Vue.js
Since
Dec 2025
Read the case study→
wirefluid.comhub.wirefluidscan.com
Fig. 1: WireFluid, how it fits together

Clients

Ethereum tooling

no changes needed

WalletsHardhatEthers.js

Explorer & web wallet

Vue.js

BlocksTxsValidators

Ethereum JSON-RPC
Cosmos REST API

Node

  1. ExecutionEVM · Solidity contracts
  2. ApplicationCosmos SDK modules
  3. ConsensusCometBFT

Runs as two public networks

Networks

wire-1Testnetlive
wire-2Devnetlive

Live

hub.wirefluidscan.comWireFluid block explorer showing the testnet and devnet networks

02Five products for international clients

Stellar, freelance

End-to-end Stellar products: I owned requirements, architecture, development and launch for each one.

  • Integrated the Stellar SDK and Horizon API for account management, asset issuance, trustlines and payments.
  • Connected end-user wallets and shipped each product through to launch.
Role
Independent contractor
Clients
International, remote
Stack
Stellar SDK · Horizon · Soroban
Read the case study→

Index · 14 other projects

More from the workbench

Scroll through the list and each project comes into focus. On a computer, hover a row to preview it.

Everything else is on GitHub
  1. Cryptool.io screenshot

    Multichain crypto funding platform. Designed the Web3 deposit and rewards flow across BSC and MultiversX, with multisig wallets and a 50% performance gain.

    BSC · MultiversX · DeFi · 2024Case study →Visit cryptool.io ↗
  2. MicroCylo screenshot

    Cross-platform desktop app for LPG cylinder distributors: customer khatas with credit limits, empty-cylinder tracking, invoices and PDF/Excel reports. Runs offline on depot machines.

    Java · JavaFX · PostgreSQL · 2026Case study →Visit microitindustry.com ↗
  3. Layer 103

    Substrate NPoS chain

    Substrate / Rust / EVM

    EVM-compatible Layer 1 secured by Nominated Proof of Stake, built at InvoZone.

    Substrate · Rust · EVMCase study →
  4. Enterprise chain04

    Hyperledger Fabric workflows

    Fabric / TypeScript

    Permissioned asset sharing and collaboration between multiple organisations and their users.

    Fabric · TypeScriptCase study →
  5. MapRepute screenshot

    AI insights from Google Maps reviews: sentiment, competitor tracking and local presence.

    Gemini · ReactCase study →Visit maprepute.vercel.app ↗
  6. DistributorPro screenshot

    Distributor management on web and Android. Order bookers log in, add shops and create bookings in the field.

    Node.js · React · PostgreSQLCase study →
  7. Desktop07

    Tauri desktop apps

    Tauri / Rust / Desktop

    Cross-platform desktop apps for InvoZone clients: a Rust core for speed and memory safety, with a web front end.

    Tauri · Rust · DesktopCase study →
  8. ChainTrust AI screenshot

    AI risk and review engine for Web3 projects, combining machine learning with on-chain analytics.

    AI · BlockchainCase study →
  9. Android app09

    Rukuh Prayer Times

    Kotlin / Jetpack Compose

    Location-based prayer times for Android, with dynamic theming, notifications and Crashlytics.

    Kotlin · Jetpack ComposeCase study →
  10. NFT Marketplace screenshot

    Ethereum NFT platform with wallet integration, minting tools and IPFS storage.

    Ethereum · IPFSCase study →
  11. Android app11

    Bubble Browser

    Kotlin / Android

    Android overlay browser that floats above other apps, with history and settings modules.

    Kotlin · AndroidCase study →
  12. Chrome extension12

    Tabmeter

    Chrome extension

    Chrome extension that tracks time spent on each site while a tab is focused. Data never leaves the device.

    Chrome extensionCase study →Visit chromewebstore.google.com ↗
  13. Rollup13

    Cosmos Interchange Rollup

    Cosmos SDK / Celestia

    Cosmos SDK chain with token swapping, deployed as a rollup on Celestia.

    Cosmos SDK · Celestia · 2023Case study →
  14. dApp14

    Blockchain Land Records

    Solidity / Web3.js

    Final-year project: a land registry dApp on Ethereum, written in Solidity with a Web3.js front end.

    Solidity · Web3.js · 2022Case study →Visit github.com ↗

(03)  Experience

Android apps, web platforms, Layer 1 chains.

Seven years, counting the early Android work. Keep scrolling and each role opens as you reach it.

  1. Core engineer in the WireFluid ecosystem: the chain itself, its explorer and its web wallet.

    • Brought EVM execution and Ethereum JSON-RPC to a Cosmos SDK chain.
    • Launched the wire-1 testnet and wire-2 devnet.

  2. Delivered Stellar products end to end for international clients.

    • Hoshira Pay, Idenoos, Avenza Proof, Aster Stellar, Sorai Link.
    • Stellar SDK, Horizon API, asset issuance, trustlines, payments, wallet connectivity.

  3. Blockchain work for international clients across Ethereum, BSC, Polygon, Solana, Stellar, Cosmos and Substrate: contracts, dApps, wallets, rollups and decentralised identity.

    • Wrote, tested and deployed Solidity with Hardhat and Foundry, and checked it with Slither and Echidna before release.
    • Built an EVM-compatible Substrate Layer 1 secured by Nominated Proof of Stake.
    • Implemented permissioned, multi-organisation workflows on Hyperledger Fabric.
    • Shipped cross-platform Tauri desktop apps with the core logic in Rust.

  4. Android apps in Kotlin and Jetpack Compose, with Room and Firebase persistence and background services.

    • Rukuh Prayer Times and Bubble Browser, an overlay browser.
    • Contributed to NFT launches and smart contract work.

  5. Led Android projects and built in-house apps for the software house.

    • Ran Android (Java and Kotlin) workshops, wrote the training material and mentored student teams.

(04)  Stack & tools

Proven tools, so your product is easy to grow.

I use widely adopted, well-supported tools, so your product is fast, secure and easy for any developer to pick up later.

Servers & data

  • Node.js, NestJS, Express
  • Go, Python, .NET
  • PostgreSQL, MySQL, MongoDB
  • Drizzle, Supabase, Firebase
  • REST & GraphQL APIs

Websites & web apps

  • Next.js, React
  • Vue.js, Angular
  • TypeScript
  • Tailwind CSS
  • Dashboards & admin panels

Phone & desktop apps

  • Kotlin, Jetpack Compose
  • Android (Java)
  • React Native
  • Room, Firebase
  • Tauri (Rust)

Blockchain

  • Solidity, Rust, Go
  • Cosmos SDK, EVM, Substrate
  • Stellar, Solana, Hyperledger
  • ERC-20 / 721 / 3643
  • Hardhat, Foundry, Slither

Hosting & AI

  • AWS: EC2, S3, RDS, EKS, KMS
  • Docker, GitHub Actions
  • Linux
  • OpenAI, Gemini, Claude APIs
  • n8n, Make

Open source · Notes

Learning in public since 2018.

166 public repositories: experiments, workshop material, and a beginner's guide to becoming a blockchain developer.

github.com/mzaryabrafique

Education

BS Computer Science

COMSATS University Islamabad

2018 — 2022

Final-year project: blockchain-based land record system

Certifications

  • Certified Blockchain PractitionerThe SecOps GroupDec 2022
  • Back End Development and APIsfreeCodeCampMay 2023
  • Blockchain SpecializationCourseraOct 2021
  • IBM Blockchain Foundation DeveloperCognitive ClassSep 2021

(05)  Questions

Straight answers, before you ask.

The things clients usually want to know before we talk.

  1. A full stack software engineer based in Lahore, Pakistan, with 5+ years of experience building websites, mobile apps, desktop apps, backends and blockchain systems. He is currently a core engineer at Walee Technologies, working on the WireFluid blockchain.

  2. Websites and web apps, Android and cross-platform mobile apps, desktop apps, backends and APIs, blockchain products such as smart contracts and wallets, and AI features inside real products. I can build one part or the whole product.

  3. Yes. Most of my client work has been for international companies, delivered remotely. That includes five Stellar products as an independent contractor and blockchain projects for overseas clients at InvoZone.

  4. Ethereum and EVM chains such as BSC and Polygon, Cosmos SDK, Substrate, Solana, Stellar, MultiversX and Hyperledger Fabric. I have also built and launched a Layer 1 chain, WireFluid.

  5. Yes. I handle the backend, database, website or app, and cloud deployment on AWS, so there is one person accountable for the result and nothing gets lost between teams.

  6. Send a short message through the contact form describing what you are building, or book a 30-minute call. I will reply with honest next steps and whether I am the right fit.

(06)  Contact

Have something that needs to hold up?

What do you need?
Budget (optional)

Replies usually within a day

A backend, a web or mobile app, a desktop tool, a blockchain system, or the whole product. Tell me what you're building and I'll tell you honestly whether I'm the right person for it.

Prefer to talk?

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