Custom Auction Aggregation Solution for Bidding and Purchasing Vehicles in Europe
CarPLATZ approached us to unify dozens of fragmented European vehicle auctions into one searchable, real-time bidding experience — so dealerships and individuals can compare, bid and buy without juggling tabs.

Industries
Services
The Challenge
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Aenean commodo ligula eget dolor. Auction houses across Europe ran on incompatible feeds, mismatched schemas and unpredictable timing. Buyers had to manage dozens of accounts and missed lots routinely. The product had to consolidate everything into a single live inventory with sub-second update guarantees.

Our Approach
We worked in four overlapping tracks to ship value fast while keeping the system observable and easy to evolve.
- 01
Research
Interviewed bidders and ops teams to map the existing flows and pain points.
- 02
Design
Designed an inventory-first UI that puts bid timer, photos and history side-by-side.
- 03
Build
Built an ingestion pipeline that normalises feeds from 30+ auction sources into one schema.
- 04
Refine
Instrumented user sessions to find friction in the bid → checkout funnel and iterated weekly.



The Impact
Within six months the platform replaced six separate workflows and became the team's daily driver.
-
Unified inventory
30+ auction sources flow into a single searchable feed.
-
Sub-second updates
Live bid state pushed to every connected client without polling.
-
Audit-grade history
Every bid, cancel and award is immutable and reviewable.
-
Mobile parity
Bidders place winning offers from anywhere with full feature parity.
Project Results
Vehicles indexed across European auction houses
Live bidding without scheduled downtime
Faster from listing to confirmed bid
Tech Stack
The technologies and tools we used to build this project.
Frontend
- Svelte
- TypeScript
- Tailwind CSS
- Vite
Backend
- Node.js
- Fastify
- PostgreSQL
- Redis
Data & Search
- ClickHouse
- Elasticsearch
- Kafka
Infrastructure
- AWS
- Docker
- Terraform
- GitHub Actions
Project Review
“Jepanana shipped what felt like an impossible integration in a quarter. We bid more, manage less, and our team finally trusts the data.”
Placeholder Name
COO, CarPLATZ

