Multi-tenant operations and invoicing platform for automotive workshops
My role
Product Architecture · Full-stack · UX/UI · Data · Compliance Workflows · DevOps
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PitlaneOne replaces fragmented workshop records with one operational workspace for customers, vehicles, service history, appointments, inventory, teams and invoices.
The platform is currently being tested with three client workshops. Each company runs in an isolated environment with role-based access and its own customizable public website, using an interface designed for fast daily work on desktop and mobile.
For the German market, invoicing follows an explicit Draft–Issued–Correction–Storno lifecycle. Final documents are archived with their source data and can be exported as PDF and structured XRechnung files for the accountant; the product does not claim GoBD certification.
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Only real product screenshots will be placed here—no mockups or stock imagery.
Company dashboard and mobile navigation
Screenshot
Customer, vehicle and service workspace
Screenshot
Invoice lifecycle and document archive
Screenshot
Inventory, appointments and public website settings
Screenshot
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Workshop workspace
Customers · Vehicles · Services · Stock · Appointments
Tenant-aware application
Authentication · Roles · Supabase RLS · Company context
Invoice lifecycle
Draft · Issued · Correction · Storno · Payment ledger
Documents and delivery
PDF · XRechnung · Accountant export · Public website
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Company context and database-level RLS make isolation a foundation of the product instead of relying only on interface checks.
Accounting documents need a traceable history. Changes are handled through correction or Storno documents while the original remains available.
Staff receive a focused private workspace while every workshop can publish its own branded customer-facing presence from the same structured data.
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PitlaneOne demonstrates my ability to turn a complex, regulated business workflow into a secure multi-tenant product—from data architecture and mobile UX to document generation, testing and production delivery.
Who this is relevant for
Relevant for clients who need a SaaS MVP, internal operations platform, role-based business software, invoicing workflow or modernization of a paper- and spreadsheet-based process.