Cosuno Tech Stack

Cloud platform for construction procurement and subcontractor coordination

Construction Berlin, Berlin 51–200 employees Founded 2019 Privately Held

Cosuno automates the planning-to-payment cycle for construction firms and their subcontractor networks. The tech stack—TypeScript, React, Node.js on AWS/Kubernetes—reflects a modern full-stack team focused on workflow automation; the active adoption of Claude and RAG signals heavy investment in AI-driven document processing and bidding logic. Current project backlog centers on migrating core services, evolving monorepo architecture, and scaling customer success for the subcontractor segment, while hiring across engineering and sales accelerates.

Tech Stack 20 technologies

Core StackTypeScript Node.js React AWS Kubernetes Terraform Cypress Python RAG HubSpot Salesforce n8n Figma Excel Google Sheets DATEV Claude GCP

What Cosuno Is Building

◆Challenges

Inefficient bidding processes
Saving time
Scaling customer success for high-growth segment
Retention and growth
Evolving monorepo strategy
Migrating core service to new architecture
Avoiding unnecessary costs
Complex construction procurement challenges
New customer success structure
Complex construction document processing

▲Active Projects

Digital platform for tenders and procurement processes
Building new customer success structure for subcontractor segment
Modular packages and services in monorepo
Migrating core service to new architecture
Evolving monorepo strategy
Ai agent for editing boqs
Automated ai bidder recommendations
Customer success initiatives
Process development for customer success
Onboarding process

Hiring Activity

Accelerating20 roles · 10 in 30d

Department

Engineering

Sales

Product

Support

Customer-Success

Finance

Operations

Seniority

Senior

Manager

Mid

Intern

Principal

Junior

Lead

Company intelligence

Find more companies like Cosuno by tech stack, pain points and active projects

Get started free

About Cosuno

Cosuno is a Berlin-based construction software company founded in 2019 that coordinates planning, procurement, and payment workflows between general contractors and their subcontractor networks. The platform replaces email, phone, and spreadsheets with a cloud-based alternative; customers report ~60% time savings and 18% higher profit margins. The product surfaces a marketplace-style discovery layer (powered by AI bidder recommendations), a structured bidding and quotation layer, and payment processing. Cosuno operates across Germany with a 51–200-person team.

HeadquartersBerlin, Berlin

Company Size51–200 employees

Founded2019

Hiring MarketsGermany

Frequently Asked Questions

What tech stack does Cosuno use?

TypeScript, Node.js, React, AWS, Kubernetes, Terraform, Python, Claude, and RAG. Infrastructure managed via Terraform; testing via Cypress. Integrations with DATEV, HubSpot, Salesforce, and Google Sheets.