The challenge
End-to-end backend infrastructure, from the eSIM lifecycle to usage-based billing.
NEON APPS · eSIM & TELECOM
Simless
Connectivity without complexity.
End-to-end backend infrastructure, from the eSIM lifecycle to usage-based billing.
Take a closer lookIllustrative system view
A closer look.
Simless · ENGINEERING
The complete eSIM lifecycle.
Provider integration, provisioning, and order management connected in a modular backend.
At a glance.
- Company
- Neon Apps
- Focus
- esim & telecom
- Technology
- NestJS · PostgreSQL · Redis
Behind the build.
My contribution
A modular NestJS backend with eSIM Go integration, order management, MobiBox payment flows, and an admin panel. CDR processing and validated PAYG calculations, Redis caching, Docker, and production infrastructure on AWS Route 53.
What I worked on
- The complete eSIM lifecycle.
- Usage that adds up.
- Ready for production.
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