COCERTO Tech Stack

French accounting firm modernizing legacy software with web-native tech

Accounting Nantes, Pays de la Loire 201–500 employees Founded 1971 Partnership

Cocerto is a 201–500-person accounting partnership in Nantes built on a modern JavaScript stack (NestJS, React, Next.js, TypeScript) actively migrating legacy accounting applications to web platforms. The hiring velocity is accelerating with a finance-heavy mix (19 finance roles, 6 engineering roles active), and the project list reveals a dual mandate: scaling their own Lynkia accounting platform while automating bank/invoice integrations and preparing IFRS consolidation reports — signaling a shift from pure advisory toward productized tooling for their client base.

Tech Stack 14 technologies

Core StackNestJS Node.js TypeScript Docker React Next.js Vite Tailwind CSS Fastify Drizzle Zod Vitest TanStack Query shadcn/ui

What COCERTO Is Building

◆Challenges

Migrating legacy applications to full web
Integrating ai functions
Consolidating financial data across subsidiaries
Ensuring ifrs compliance
Integrating ai into legacy applications
Moderniser applications comptables
Intégrer ia
Integrating ai into accounting tools
Automating accounting tasks
Automating bank imports

▲Active Projects

Lynkia web production accounting software
Cocerto group crm
Lynkia web accounting platform
Implementing financial reporting system
Preparing consolidated ifrs financial statements
Invoice integration via yooz
Bank statement integration
Account reconciliation
Lynkia platform modernization
Full web migration

Hiring Activity

Accelerating45 roles · 25 in 30d

Department

Finance

Engineering

Legal

Product

Sales

Social

Support

Seniority

Mid

Senior

Intern

Junior

Lead

Manager

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About COCERTO

Cocerto provides accounting, audit, payroll, HR, and legal services to mid-market companies across France. The firm has operated since 1971 and operates as a partnership with 201–500 employees. Beyond traditional advisory, Cocerto has developed internal digital products: Plume (accounting and invoicing software), Workplace (a client collaboration platform), and tools for electronic invoice compliance. Current focus is a major technical modernization effort — migrating their Lynkia accounting platform to a full web architecture and embedding automation for bank statement and invoice ingestion. The company is headquartered in Nantes, Pays de la Loire.

HeadquartersNantes, Pays de la Loire

Company Size201–500 employees

Founded1971

Hiring MarketsFrance

Frequently Asked Questions

What tech stack does Cocerto use?

NestJS, Node.js, TypeScript, React, Next.js, Fastify, Drizzle, Zod, Docker, Vite, TanStack Query, shadcn/ui, and Tailwind CSS. Stack reflects a modern, full-stack JavaScript-first approach.

What is Cocerto working on?

Modernizing Lynkia, their accounting platform, to web-native architecture; integrating bank statements and invoices; implementing IFRS financial reporting; automating accounting tasks; and consolidating financial data across subsidiaries.