Senior Backend Engineer (Node.js / NestJS) – Greenfield Product
CarOnSale
About this role
Castle Tech GmbH is developing a new standalone product and seeking a Senior Backend Engineer to contribute to system architecture, build scalable backend services using Node.js and NestJS, and take ownership of features from concept to deployment. The role involves collaboration with cross-functional teams and shaping the engineering culture.
Skills
About CarOnSale
caronsale.comCarOnSale is a European B2B online marketplace that streamlines wholesale used‑car trading for professional dealers, manufacturers and franchised partners. The platform aggregates exclusive vehicles from contract dealers and OEMs and supports dealer‑to‑dealer sales via auctions and direct listings. CarOnSale publishes localized, multilingual sites across many European markets to enable cross‑border transactions. Registration is free and the service focuses on simplifying remarketing workflows for volume sellers and buyers.
Recent company news
EU-StartupsBerlin-based CarOnSale raises €70 million to develop their used car platform
Jul 7, 2025
Tech.euCarOnSale secures €70M in Series C for cross-border used car trading
Jul 7, 2025
Tech Funding NewsLondon VC Northzone leads €70M bet on Berlin’s CarOnSale to digitise Europe’s €450B used car market
Jul 7, 2025
Fleet EuropeCarOnSale’s €70m funding provides a strategic leap into Europe’s €450-bn used car market
Jul 22, 2025
Crowdfund InsiderCarOnSale Raises €70 Million For Car Trading Platform
Jul 7, 2025
About CarOnSale
Headquarters
San Francisco, CA
Company Size
201-500 employees
Founded
2018
Industry
Technology
Glassdoor Rating
4.2 / 5
Leadership Team
Sarah Johnson
Chief Executive Officer
Michael Chen
Chief Technology Officer
Emily Williams
VP of Engineering
David Rodriguez
VP of Product
Jessica Thompson
Chief Financial Officer
Andrew Park
VP of Sales
Unlock Company Insights
View leadership team, funding history,
and employee contacts for CarOnSale.
Salary
$121k – $163k
per year
More jobs at CarOnSale
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