Build Scalable Backend APIs with Express.js / NestJS by Arthur DarwantoBuild Scalable Backend APIs with Express.js / NestJS by Arthur Darwanto
Build Scalable Backend APIs with Express.js / NestJSArthur Darwanto
Build scalable backend services designed for production.
I develop robust backend systems using NestJS and TypeScript, focusing on clean architecture, performance, maintainability, and long-term scalability.
Whether you're building a SaaS platform, ERP, marketplace, AI product, or internal business application, I can help you create a backend that's reliable and easy to extend.
What I can build
• REST APIs
• GraphQL APIs
• Authentication & Authorization
• Multi-tenant SaaS architecture
• ERP & POS backends
• Background jobs & queues
• Payment integrations
• AI API integrations
• Database architecture
• Admin APIs
Tech stack
• NestJS
• Node.js
• TypeScript
• PostgreSQL
• Prisma ORM
• Redis
• BullMQ
• GraphQL
• Docker
What you will get
✅ Clean architecture
✅ Modular codebase
✅ Authentication & role-based access
✅ Database schema design
✅ Optimized SQL queries
✅ API documentation (Swagger)
✅ Background workers
✅ Docker support
✅ Production-ready deployment
Why work with me?
I have over 5 years of experience building backend systems for production applications, including ERP, POS, AI-powered products, marketplace platforms, and social applications.
I focus on creating backend architectures that remain maintainable as your product grows.
Ready to build a reliable backend?
Let's build an API your frontend team will love working with.
Build scalable backend services designed for production.
I develop robust backend systems using NestJS and TypeScript, focusing on clean architecture, performance, maintainability, and long-term scalability.
Whether you're building a SaaS platform, ERP, marketplace, AI product, or internal business application, I can help you create a backend that's reliable and easy to extend.
What I can build
• REST APIs
• GraphQL APIs
• Authentication & Authorization
• Multi-tenant SaaS architecture
• ERP & POS backends
• Background jobs & queues
• Payment integrations
• AI API integrations
• Database architecture
• Admin APIs
Tech stack
• NestJS
• Node.js
• TypeScript
• PostgreSQL
• Prisma ORM
• Redis
• BullMQ
• GraphQL
• Docker
What you will get
✅ Clean architecture
✅ Modular codebase
✅ Authentication & role-based access
✅ Database schema design
✅ Optimized SQL queries
✅ API documentation (Swagger)
✅ Background workers
✅ Docker support
✅ Production-ready deployment
Why work with me?
I have over 5 years of experience building backend systems for production applications, including ERP, POS, AI-powered products, marketplace platforms, and social applications.
I focus on creating backend architectures that remain maintainable as your product grows.
Ready to build a reliable backend?
Let's build an API your frontend team will love working with.