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eSIM Platform · Platform Engineer · 2025–2026 · Active

EasySim.mn

International eSIM service for travelers — instant data in 100+ countries, distributed through a Mongolian super app.

Visit easysim.mn

Docker, Nginx, PostgreSQL, Redis, Golang, React, TypeScript, REST API, OpenAI API, RAG, Function calling, Super App SDK

easysim.mn
EasySim.mn — international eSIM store
100+
countries covered
Instant
eSIM activation
Super app
distribution

Order pipeline

Purchase to working data connection — no manual step anywhere in the path

  1. Purchase
    super app checkout
  2. Payment
    gateway settlement
  3. Supplier API
    catalog + order
  4. QR generation
    automated delivery
  5. Activation
    instant, no physical SIM
  6. Usage dashboard
    manage + track

EasySim Data Provider LLC is a technology company offering international eSIM services tailored for travelers.

The core project was a digital platform that lets users instantly purchase and activate eSIM data packages — no physical SIM card required.

Launched inside a popular Mongolian super app, the platform makes mobile internet more convenient, affordable, and accessible wherever travelers land.

Customer support runs itself. An OpenAI-backed agent answers on social channels with retrieval over the product knowledge base and custom tools that can act on a real order — so the common questions resolve end to end without a human in the loop.

Highlights

  • Seamless eSIM purchase and instant activation, with no physical SIM required.
  • Integrated into a major Mongolian super app for maximum reach.
  • Roaming data packages priced per destination, activated without a physical SIM.
  • Automated QR code generation and delivery for eSIM installation.
  • Secure payment integration and real-time order processing.
  • User-friendly dashboard for managing eSIMs and tracking usage.
  • Fully automated AI support on social channels, built on OpenAI with retrieval-augmented generation over the product knowledge base.
  • Custom tools give the agent real capability — it can look things up and act on an order rather than only answering from text.

Screenshots