Senior Fullstack Engineer (with Backend focus) (f/m/x) - Customer Success Team

CarOnSale is a start-up in the heart of Berlin. As a tech company, we have made it our mission to enable smooth digital processes in the automotive trade across Europe. Join us and develop new, innovative solutions for the B2B sector.

We are looking for a Senior Fullstack Engineer with Backend focus to join our Customer Success engineering team in Berlin or Munich. We are looking for strong candidates that have had experience in building solutions end to end.

Your tasks:

• You will work closely with our product team as part of a tight collaboration, where we focus on outcomes, not output.


• Be an active contributor to our personal growth culture by mentoring and supporting others, particularly junior engineers.


• Volunteer as a technical driver for product and tech topics, bringing to the team your expertise and experience in solving real world problems.


• Moderate team sessions, guiding and supporting your team members as you tackle technical and process challenges together


• Take an active role in the team’s continuous improvement as a self-organising, high-performing unit.


• Bring your influence to the wider engineering organisation with involvement in cross-domain initiatives and Guild sessions.

Your profile:

• You have at least 4 years of hands-on experience in backend engineering roles.


• You have a hands-on mentality towards not only technical, but also organizational challenges, with a willingness to take the lead, challenge the status quo and make decisions.


• You are a native speaker in TypeScript and familiar with technologies such as Node.js, NestJS, Angular.js and PostgreSQL.


• You have an extensive experience with RESTful APIs, event-driven and microservices architecture.


• You have practical experience with agile development frameworks like Scrum and tools like JIRA, Confluence.


• You have excellent English communication and relationship building skills.

Nice to have:

• Conversational German skills 


• Experience in the automotive industry

Why COS?

• First things first: You’ll be taken seriously from day one and will play an important role in our mission, because we want to disrupt Europe’s automotive market together with you 


• Growth and development: benefit from a detailed on-boarding program, systematic feedback cycles and individual coaching 


• Your gear, your choice: you will be provided with a MacBook or Windows laptop and all the hardware and software you need to work


• Become a COSie: be part of a motivated team with ambitious goals and enjoy lots of fun, lots of awesome team events and a unique COS team spirit 


• Truly diverse and inclusive: Diversity is important to you? It is important to us too! Diversity in which everyone feels comfortable, is absolutely central to us

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