PAUL Tech AG Tech Stack

AI-driven retrofit platform converting existing buildings to net-zero energy

Real Estate Mannheim, Baden-Württemberg 51–200 employees Founded 2017 Public Company

PAUL Tech AG operates a hardware-software platform for retrofitting residential buildings with heat pumps, solar, and AI-driven energy management. The company manages 160,000 housing units across Germany and is migrating to SAP — a signal of moving from startup tooling toward enterprise-scale operations. Engineering dominates the hiring mix (25 roles) alongside construction (6) and manufacturing (3), reflecting a capital-intensive model that requires both software and field-installation capabilities.

Tech Stack 21 technologies

Core Stackn8n Cursor Python Java JavaScript AWS Docker Kubernetes Node.js Go Canva ChatGPT SQL Microsoft Office Excel DATEV Azure InDesign Photoshop PowerPoint

AdoptingSAP

What PAUL Tech AG Is Building

◆Challenges

Reducing co2 emissions
Scaling installation of climate-neutral systems
Scaling production
Making existing buildings climate neutral
Efficiency improvement in ongoing operations
Scaling service operations
Real-time payment tracking
Scaling installation operations
Achieving climate neutrality
Ensuring system integration

▲Active Projects

Installation of paul net zero systems
Digital documentation of work via mobile devices
Building services integration with central control
Fault analysis and mitigation
Paul net zero solution
Scalable system integrations
Mvp development
Cost savings initiatives
Investor relations workshops
Automation solutions with n8n

Hiring Activity

Decelerating45 roles · 10 in 30d

Department

Engineering

Construction

Manufacturing

Support

Finance

Ops

Marketing

Procurement

Seniority

Senior

Mid

Junior

Intern

Manager

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About PAUL Tech AG

PAUL Tech AG, headquartered in Mannheim, builds and deploys net-zero retrofit systems for existing residential real estate. The core offering combines hardware (heat pumps, photovoltaic systems) with proprietary AI orchestration (PAUL Net Zero) to optimize energy efficiency and ESG compliance. The company currently manages retrofits across 160,000 housing units and operates as a public company with 51–200 employees. Revenue model ties to installation scale and ongoing operational efficiency gains for property managers and institutional investors.

HeadquartersMannheim, Baden-Württemberg

Company Size51–200 employees

Founded2017

Hiring MarketsGermany

Frequently Asked Questions

What tech stack does PAUL Tech AG use?

Core: Python, Java, JavaScript, SQL, Node.js, Go. Infrastructure: AWS, Azure, Docker, Kubernetes. Workflow automation via n8n and ChatGPT. Office and design tools: Microsoft Office, Excel, Canva, InDesign, Photoshop. Currently adopting SAP for enterprise operations.

What is PAUL Tech AG working on?

Installation and scaling of net-zero retrofit systems; digital documentation of field work via mobile devices; building-systems integration with central AI control; fault detection and mitigation; cost-savings and automation initiatives via n8n; MVP development for new service offerings.