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nishanmadush892

Nishan

@nishanmadush892

Software Engineer

Sri Lanka
Inglês, Cingalês
Algumas informações são exibidas no idioma inglês.
Sobre mim
Hey! I'm Nishan, a passionate Full-Stack Developer with 3+ years building stunning, high-performance web apps that users love. I create: ✨ Sleek, modern websites & landing pages 🛒 Powerful e-commerce platforms ⚡ Custom web apps & dashboards 📱 Fully responsive, SEO-friendly solutions My expertise: MongoDB, Express.js, Next.js, React, Node.js + modern tools like Tailwind, Redux, TypeScript, and deployment + Automation with N8N. From concept to launch, I deliver clean code, fast performance, and pixel-perfect designs that scale. Let's turn your vision into reality!... Saiba mais

Habilidades

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nishanmadush892
Nishan
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Tempo médio de resposta: 1 hora

Conheça meus serviços

Automações e Agentes
I will self host n8n and build powerful automation workflows
A partir deUS$ 10 /projetoMais detalhes
Aplicações Web Full Stack
I will build a scalable nextjs saas app with a dashboard
A partir deUS$ 30 /projetoMais detalhes

Portfólio

Experiência profissional

Software Engineer

X4digital Labs (Pvt) Ltd • Período integral

Jan 2025 - Present • 1 yr 4 mos

Promoted from Associate Software Engineer. Architected and deployed production-grade web applications using Next.js 15 (App Router), React 19, and Node.js, serving enterprise clients including major hospitality organizations in the Middle East. Designed and implemented RESTful APIs and WebSocket (Socket.io) servers for real-time reservation updates, notifications, and live availability tracking. Managed and provisioned AWS infrastructure, including EC2 instances and RDS PostgreSQL database for both production and staging environments. Administered Ubuntu Linux servers with PM2 process management, configured SSL/HTTPS certificates, and maintained environment-based deployments across multiple client projects. Engineered database solutions using Prisma ORM with 185+ models across PostgreSQL, covering schema design, migrations, indexing strategies, and query optimization for high-volume datasets. Built a multi-tenant loyalty engine with points, tiers, a wallet system, referral programs, gift cards, and rule-based discount management for restaurant chains. Integrated multiple payment gateways (Adyen, Geidea, HyperPay) with full webhook processing pipelines, automated refund handling, and reconciliation workflows. Implemented Apple Wallet digital loyalty card generation (PKPass format) and Oracle Simphony POS integration for seamless in-restaurant loyalty redemption. Developed authentication systems using NextAuth v5 with RBAC, credential login, and OAuth; debugged and resolved critical production issues, including Prisma errors and security vulnerabilities. Built and maintained n8n automation workflows for API-driven integrations, scheduled monitoring, and inter-system data sync; delivered all projects with comprehensive client documentation.