# Full Stack House | Open Mercato

Source: https://www.openmercato.com/certified-partners/full-stack-house

# Full Stack House

Open Mercato core contributors. Senior engineers who build and consolidate ERP, CRM, and commerce — one engineer owns each project end to end, shipping in weeks.

Partner type

Agency

Industry

ManufacturingRetailFinanceSoftware & TechnologyEdTech

Location

Poland

Language

EnglishPolish

Services offered

ImplementationConsultingCustom DevelopmentAI IntegrationMigration

Minimum budget

$20,000 - $50,000

Availability

Accepting new projects

Visit website

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Ready to build?

## About

Full Stack House is built around one idea: one senior engineer working end to end ships what a classic agency staffs five people for. No PM tax, no handoff chain. The founder brings 20+ years building serious, long-lived systems — a 20-year-old C# SaaS modernized without a rewrite, a Polish job platform at ~40M monthly page views, a court-booking app holding 4.8/5 across 2,000+ reviews.

## What we do

We're open-source-first: instead of building from scratch, we start from Open Mercato and tailor the last stretch to the client. We're core contributors, not just users — 135 merged pull requests across 92 repositories, 20 of them in Open Mercato itself.

## Our specializations

- Groomershop — consolidated a 500k+ orders/year e-commerce back office into one order-management system spanning ERP, WMS, marketplace, and payments

- Edube — an education platform with an adaptive tutor, knowledge tree, assessments, and real-time voice tutoring on a multi-tenant Open Mercato base

- Covo — a backend and mobile API for an eSIM travel wallet: multi-currency ledger, family pooling, provisioning, and per-country VAT

## Who we work with

Teams weighing Open Mercato for CRM, ERP, or commerce who want a senior engineer who researches, ships, tests, and confirms production — not a staffing pool.

## Industries we serve

Retail and e-commerce operations (Groomershop), EdTech (Edube), and payments and multi-currency systems (Covo), plus manufacturing, finance, and software & technology more broadly.

## How we work

Seniors own scope, architecture, and the quality bar, and direct AI to build and verify under that direction. Every feature ships with automated end-to-end tests and demo data, gated in CI. We run Open Mercato in production ourselves.

## Software is about to be built completely differently.