Meraj Malik | Full Stack & Blockchain Developer, India

// 01 — About Me

Architect. Builder. Problem Solver.

developer.ts

const merajMalik = {
  name: "Meraj Malik",
  role: "Full Stack Dev & IT Head",
  location: "Noida, UP, India",
  experience: 5,
  available: true,
  backend: ["Laravel", "Node.js", "PHP 8"],
  blockchain: ["BTC", "ETH", "TRX", "BSC"],
  frontend: ["Next.js", "React", "GSAP"],
  devops: ["Docker", "Ubuntu", "Nginx"],
  database: ["PostgreSQL", "Redis", "MySQL"],
  realtime: ["WebSocket", "Socket.io"],
  projects: 35,
  nodes: ["bitcoin-core", "geth", "tronnode"],
  // 85% Tron fee reduction in production
  achievement: "400+ TXN/min at peak",
}

I'm a Full Stack Developer and IT Head with 5+ years of production-grade experience building complex systems — from crypto payment gateways processing 400+ transactions/minute to self-hosted blockchain full nodes that power live fintech applications.

From a junior web developer to IT Head, I've grown by shipping real products — architecting microservices, leading engineering teams, optimizing blockchain fee structures by 85%, and delivering enterprise-grade SaaS platforms solo.

Backend Engineering95%

Blockchain & Web390%

Frontend & UI85%

DevOps & Infra80%

MCA — Master of Computer ApplicationsJamia Hamdard University, Delhi (Pursuing)

// 02 — Experience

5 Years of Real Impact

Jan 2025 → Present

IT Head

Subhx OPC Pvt. Ltd. — Noida, UP

Leading cross-functional engineering team. Owning architecture decisions, sprint planning, and production infrastructure. Driving microservices adoption and event-driven system design at scale.

Currently Active

Jan 2024 → Jan 2025

Team Lead

Subhx OPC Pvt. Ltd. — Noida, UP

Led development teams on CoinsPe crypto exchange, ISP billing, and SaaS products. Mentored junior engineers and coordinated cross-team deployments.

1 Year

Apr 2022 → Dec 2023

Laravel Developer

Subhx OPC Pvt. Ltd. — Noida, UP

Built and maintained the CoinsPe crypto gateway, ISP billing platform, and Sabre GDS travel system. Achieved 85% Tron fee reduction and 400+ TXN/min throughput.

1.5 Years

Mar 2020 → Apr 2022

Laravel Developer

SDS Softwares — Remote (WFH)

Delivered multiple Laravel-based web applications and REST APIs. Worked on admin panels, reporting systems, and client-facing portals across diverse industries.

2 Years

Feb 2020 → Apr 2021

Web Developer

Webtis Software Solutions

Started career building full-featured web applications, custom themes, and client websites. Gained foundational expertise in PHP, MySQL, and frontend development.

Where it began

// 03 — Tech Stack

What I Build With

Backend Engineering

High-performance APIs, microservices, and server-side systems built with PHP and Node.js ecosystems.

PHP 8.xLaravel 11OctaneHorizonSanctumNode.jsExpressREST APISOAPJWTSwagger

Blockchain & Web3

Self-hosted full nodes, crypto gateways, multi-chain wallets, and fee optimization systems in live production.

Bitcoin CoreEthereumTron TRXBSCWeb3.jsethers.jsUSDTFull NodesKYC

Frontend Development

Modern, performant UIs. SSR-first with Next.js, reactive with React, animated with GSAP and Three.js.

Next.js 14React.jsThree.jsGSAPAlpine.jsTailwindES2022+

Database & Caching

Query optimization, race-condition-safe transactions, and caching strategies for high-throughput systems.

PostgreSQLMySQLRedisEloquent ORMOptimistic LockingPub/Sub

Realtime Systems

Live dashboards, chat systems, and notification pipelines using WebSocket and event-driven architecture.

WebSocketSocket.ioWebRTCLaravel EchoPusherRedis Pub/Sub

DevOps & Infrastructure

Server provisioning, CI/CD pipelines, containerization, and blockchain node management on Ubuntu.

DockerUbuntuNginxApacheGitCI/CDSSHBash

// 04 — Projects

35+ Projects. 13 Showcased.

CoinsPe Exchange

Multi-chain crypto payment gateway with self-hosted BTC/ETH/TRX/BSC nodes, fiat on/off ramp, KYC, and real-time rate polling.

400–500 TXN/min at peak

LaravelNode.jsPostgreSQLRedisWebSocketDockerMulti-chain

Tron Energy & Bandwidth System

Dynamic engine that reduces TRX transaction fees by purchasing energy/bandwidth on-demand per address and coin type.

85% fee reduction (2–3 → 0.3 USDT)

Node.jsLaravelTronNodeUbuntu

Blockchain Node Infrastructure

Self-hosted Bitcoin Core, Tron Full Node, and Geth (ETH/BSC) on Ubuntu servers powering CoinsPe internally.

3 Full Nodes — BTC · ETH · TRX

UbuntuBitcoin CoreTronNodeGeth

ServBetter.com

100% solo-built SaaS product from architecture to production — full CI/CD pipeline, Docker, and ongoing infrastructure management. Zero dependencies on others.

100% Solo — Architecture to Production

LaravelNext.jsPostgreSQLDockerRedisUbuntuCI/CD

Subhx Connect

Internet + OTT subscription sales platform with AI-powered chat, microservices backend, and real-time order tracking.

AI-powered support system

Node.jsLaravelNext.jsOpenAISocket.io

ISP Billing & Management

Complete ISP platform with RADIUS auth, TR-069 router provisioning, billing lifecycle, and multi-region portals.

RADIUS + TR-069 provisioning

LaravelMySQLRADIUSTR-069jQuery

Sabre GDS Travel Platform

End-to-end Sabre GDS integration with flight search, PNR management, ticketing, and B2B partner APIs.

Full Sabre GDS integration

LaravelSabre GDSSOAPREST APISwagger

QR Inventory System

Real-time stock tracking via QR scanning with role-based access control and analytics reporting.

Real-time QR stock tracking

LaravelReactMySQLDockerQR Code

HR Management Panel

Employee lifecycle management with attendance tracking, payroll module, and multi-role admin access.

Full HR lifecycle management

LaravelReactMySQL

Subhx OPC Platform

Multi-service SaaS platform with microservices architecture, event-driven design, and shared auth layer. Led full engineering team.

Microservices + event-driven arch

Next.jsLaravelNode.jsPostgreSQLDocker

Multiple Admin Panels

Custom multi-tenant admin dashboards with role-based access and reporting for diverse client businesses.

Multi-tenant + RBAC

LaraveljQueryBootstrapMySQL

Reqnalyz — API Watcher

Real-time API uptime and response monitoring SaaS with 10,000+ queue jobs, multi-channel alerts (Email, Slack, WhatsApp), tiered subscriptions, and live dashboards.

10,000+ queue jobs via Laravel Horizon

LaravelHorizonMySQLRedisWebSocketSlackWhatsApp

DioWorld.in

Full WordPress business site with custom theme, plugin management, performance optimization, security hardening, and hosting setup.

⚡ Optimized & secured in production

WordPressPHPcPanel

// 05 — Live Demo

Tron Fee Optimizer

tron-optimizer.js

config.js

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// Tron Energy & Bandwidth Optimizer // Reduces USDT transfer fee by 85% const optimizeTronFee = async (address, amount) => { const baseFee = 2.5; // USDT without optimization const energyNeeded = calcEnergy(amount); const bandwidthNeeded = calcBandwidth(amount); // Purchase energy on-demand for address await purchaseEnergy({ address, energy: energyNeeded, provider: 'TronGrid' }); const optimizedFee = 0.35; // USDT after const savings = calcSavings(baseFee, optimizedFee); return { originalFee: baseFee, finalFee: optimizedFee, savings: savings + '%', status: '✓ optimized' }; };

$ node tron-optimizer.js --address TQn4... --amount 100

Connecting to Tron Full Node...

Calculating energy requirements...

Purchasing energy from TronGrid...

Energy purchased: 65,000 units

Original fee: 2.5 USDT

Optimized fee: 0.35 USDT

Fee reduction: 86% saved!

Transaction sent. TxHash: 0xa3f4...b291