Available for new projects

MerajMalik

Full Stack Developer & Team Lead

Senior full-stack developer and team lead specializing in complex backend systems across crypto & blockchain, ISP/telecom, and travel tech. I build production-scale platforms from scratch, lead engineering teams, and own DevOps—from LAMP and Docker to high-volume transaction pipelines.

5+Years Experience
20+Projects Delivered
400+Txn/min at Peak (exchange)
15+Happy Clients
Open to Work

Meraj Malik

Team Lead · Full Stack Dev
About Me

Building Things
That Matter

I am a senior full-stack developer and team lead with a proven track record in production systems—from multi-chain crypto exchanges and billing stacks for ISPs to Sabre-backed travel platforms. I combine hands-on architecture (PHP/Laravel, Node.js, Next.js) with team leadership, code quality, and reliable ops.

Deep experience includes multi-chain wallet flows (Bitcoin, Tron, Ethereum, BSC), fiat deposit and withdrawal pipelines, RADIUS user management, TR-069 provisioning, full billing and invoicing, service-request tooling, Sabre GDS integration, and high-throughput processing in live environments (on the order of hundreds of transactions per minute).

Comfortable owning the full path to production: Ubuntu/Linux, Apache/LAMP, Docker, Redis caching, queues (including Laravel Horizon), cron and automation, Swagger-backed APIs, and day-to-day server management.

Currently pursuing MCA at Jamia Hamdard University, Delhi. Previously led engineering at Subhx OPC, delivered enterprise work at SUBHX, served as technical head on the Coinspe crypto exchange, and shipped ISP and travel integrations in long-running codebases.

Experience
Jan 2025 –

IT-Head

Subhx OPC

Led team with Next.js, Node.js & Laravel. Agile delivery, architecture, reviews, and production quality across the stack.

Jan 2024 – Jan 2025

Team Lead

Subhx OPC

Led team with Next.js, Node.js & Laravel. Agile delivery, architecture, reviews, and production quality across the stack.

Apr 2022 – Dec 2023

PHP & Laravel Developer

Subhx

Enterprise web apps with Laravel: UI implementation, schema design, Eloquent/ORM patterns, REST services, clean standards.

Mar 2020 – Apr 2022

Laravel Developer

WFH / SDS Softwares

PHP & Laravel for multiple client products and integrations.

Feb 2020 – Apr 2021

Web Developer

Webtis Software Solutions

Full-stack delivery across client web projects.

Core Specializations

Domains I
Ship In

Ledgers & liquidity

Crypto & Blockchain

  • Multi-chain wallet systems (Bitcoin, Tron, Ethereum, BSC)
  • Crypto exchange platforms & ops-critical services
  • Fiat deposit & withdrawal systems
  • High-volume transaction processing (400–500 txn/min)
Service providers

ISP & Telecom

  • RADIUS user management
  • TR-069 router management & automation
  • Billing, invoicing, and service request workflows
Distribution

Travel Technology

  • Sabre GDS integration
  • Booking & reservation platforms
  • Inventory, ticketing, and partner-facing APIs
Reliability

DevOps & Infra

  • Production deployment & Linux/Ubuntu administration
  • LAMP stack, Apache tuning, Docker
  • Redis caching, optimization, server ownership
Technical Skills

Stack &
Expertise

Backend

PHP Laravel Laravel Octane Laravel Horizon Node.js Express REST API SOAP API MVC Architecture Queue Management Authentication Cron Jobs & Automation API Docs (Swagger)

Frontend

JavaScript Next.js jQuery

Real-time & Messaging

WebRTC Socket.io WebSocket Redis Pub/Sub patterns

Database & Cache

MySQL PostgreSQL Redis Cache layers

Domain Platforms

Bitcoin Ethereum BSC Tron Multi-chain wallets Exchange backends RADIUS TR-069 ISP Billing Service Requests Sabre GDS Sabre API Booking systems

DevOps & Tools

Linux / Ubuntu Apache LAMP Stack Docker Git / GitHub Production deployment Server management
Featured Work

Selected
Projects

01
Crypto Platform2022

Coinspe Exchange

Technical head for an Indian crypto exchange: fiat wallet flows, multi-chain deposits & withdrawals (Tron, BTC, ETH, BSC), liquidity-adjacent services, and throughput on the order of 400–500 transactions per minute at peak.

PHPLaravelNode.jsRedisWebSocket
Case study on request
02
Team Platform2024

Subhx OPC Platform

Led a full-stack team shipping Next.js, Node.js, and Laravel services—sprints, reviews, Postgres-backed APIs, and operational ownership.

Next.jsLaravelNode.jsPostgreSQL
Details on request
03
Enterprise Web2021

Enterprise Solutions (Subhx)

Long-running Laravel and MySQL systems: REST integrations, invoicing-adjacent modules, disciplined API design, and Swagger documentation for partner teams.

LaravelMySQLRESTJavaScriptSwagger
Portfolio reference
Contact

Let's Build
Together

Have a crypto, ISP, travel, or enterprise web initiative? Reach out—I lead delivery end to end.