E-commerce

High-load commerce platform

An 800-thousand-item catalogue, 300–400 thousand users a month and a mobile app. We run the whole platform: backend, frontend, integrations, CI/CD and production support.

Discuss a similar taskService: integrations
800k+
catalogue items
300–400k
users a month
~40
recurring data exchanges between systems

The problem

Evolve a platform that cannot stop

The platform runs under live load every day: hundreds of thousands of users, a large catalogue and orders that pass through accounting, the warehouse, delivery and payment. Sales depend on every one of these links.

At the same time, its core is a legacy PHP monolith. It has to move to Laravel without stopping the business or breaking the money paths, while the mobile app and the integrations keep evolving.

Technology

Platform stack

Backend

PHPLaravelMySQL

Integrations

RabbitMQRESTOAuthERP / CRM / WMSBank acquiringInstalments

Mobile

FlutterDart

Delivery and development

DockerCI/CDAgentic developmentEval gates in CI

The solution

What was done

Staged migration to Laravel

The legacy PHP monolith moves to Laravel piece by piece, behind feature flags: new code is switched on gradually and can be switched off instantly.

  • Feature flags
  • Tests on the money paths
  • Instant switch-off of a change

Integration layer

ERP and warehouse over RabbitMQ, CRM over REST and OAuth, plus WMS, carrier APIs and payments with bank acquiring and instalments.

  • Around 40 recurring exchanges
  • RabbitMQ queues, REST and OAuth

Mobile app

A Flutter app for the App Store and Google Play, and the API behind it.

  • Flutter app in the App Store and Google Play
  • API for the mobile client

Protection

Security layers against attacks and intrusions on top of the platform and its integrations.

  • Attack and intrusion protection
  • Access control
  • Secrets management

Agentic development

AI agents are part of daily development: their own settings for each project, tasks from written specifications, automatic checks of every change against real examples, AI cost tracking and protection of passwords and access keys.

  • Tasks from written specifications
  • Every change checked automatically
  • A person approves changes to live code

Today

How the platform runs now

The platform is in production and under continuous support. The migration continues: new parts ship behind feature flags, money paths are covered by tests, and releases go out without stopping the business.

  • Backend, frontend, integrations, CI/CD and production support — under one team
  • The mobile app and its API evolve together with the platform
  • Agentic development is built into daily work, but a human makes the merges

Contacts

Tell us about the task

Tell us in two paragraphs what's not working. We will tell you whether we take it on and where we suggest starting. Meetings online, or in person in Uzhhorod or Kyiv.

We reply within one business day.

Email info@sairas.com.ua Phone +380 98 907 03 18 Telegram Open a chat LinkedIn Founder profile
Location Uzhhorod, Kyiv and remote across Ukraine
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