n3s.agency

Service 01 · Enterprise & ERP

Big systems that won't embarrass you in 5 years.

Accounting, warehouse, orders, finance, production modules. Architecture, zero-downtime data migration, real integration with what you already run.

What's included

What the service consists of.

01

Architecture built for growth

Modular monolith or microservices — chosen by load, not fashion. We document boundaries and contracts so the client's team can evolve the system themselves.

02

Zero-downtime migration

Dual writes, shadow rings, blue/green releases. The business keeps running while you move off 1C, Excel, or SAP.

03

Integration with 1C / MDM / BI

REST, queues, file gateways — picked to match data freshness and SLA of your existing IT landscape.

04

Performance under load

We profile, index, cache. Load-testing on your actual data volumes before launch.

05

Observability and SLA

Sentry, OpenTelemetry, dashboards. You know what broke before the first user calls.

06

Handover and support

Internal docs, paired code reviews with the client's team, dedicated support hours. We don't lock you in.

How we work

Five steps.

  1. 01

    Discovery

    A week of interviews with people who actually use the system. Process map as-is, pain points, scored by impact/risk.

  2. 02

    Architecture and plan

    A 10-30 page document: modules, contracts, migration, risks, timing, budget. Locked before any code.

  3. 03

    MVP in 4-6 weeks

    First working loop in production. With real users, not on demo data.

  4. 04

    Iteration

    Two-week sprints, accepted against business metrics — not tickets.

  5. 05

    Handover and SLA

    Docs, training, support contract. Optional warranty on critical modules.

Tools for the job

  • Python · Django / FastAPI
  • PostgreSQL
  • ClickHouse
  • Redis · RabbitMQ
  • OpenTelemetry · Sentry

FAQ

What people usually ask.

Usually no. Half our ERP projects are extensions over 1C: accounting stays in 1C, ops/CRM/BI move to a custom system. Decided after Discovery.

Mid-market ERP typically runs 6-25M ₽. The wide spread is driven by integrations and data migration, not the modules themselves. Exact number after Discovery.

MVP in prod: 4-6 weeks. Full coverage of key processes: 4-9 months. Large industrial projects: a year+.

That's the point. From day one we code as if for handover: docs, paired reviews with your engineer, an architecture you can read.

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