Senior Backend Engineer - Engagement and Growth Engineering 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 Backend Engineer to join our Engagement and Growth team in Berlin. This role focuses on Backend development, building and optimizing robust, scalable solutions that drive user engagement and product growth. You'll play a vital role in shaping our platform, optimising data flows, and contributing to team growth with the autonomy to influence development strategies and backend architecture.

Your Tasks:
●  Mentor and Develop Team Members: Guide less experienced engineers, sharing your expertise in backend systems and promoting best practices.
●  Define Requirements and Standards: Work with cross-functional teams to identify backend and product requirements, set development standards (e.g., code quality), and establish efficient CI/CD pipelines.
●  Lead Backend Development: Take charge of technology selection, architecture design, and implementation of key features that support user engagement and scalability.
●  Influence Development Approaches: Actively contribute ideas, challenge concepts, and influence backend development strategies, including optimization for data processing and performance.
●  Support Team Collaboration: Facilitate team sessions, provide technical feedback, and help team members tackle complex backend challenges.

Your Profile:
●  5+ Years of Software Engineering Experience: Extensive experience in backend development, focused on building scalable, high-performance applications.
●  Backend Tech Stack Expertise: Native proficiency in TypeScript and strong experience with Node.js, NestJS, and PostgreSQL.
●  Mentorship Experience: Proven ability to coach and mentor other engineers, promoting best practices and knowledge-sharing within the team.
●  SCM and CI/CD Knowledge: Skilled in using tools such as Git, Docker, and CI pipelines to ensure development efficiency.
●  Agile Experience: Familiar with Scrum or Kanban frameworks, using tools like JIRA and Confluence.
●  Excellent Communication Skills: Able to communicate effectively in English, build strong relationships, and collaborate across teams.
●  Autonomous and Growth-Oriented: Ability to work independently and eager to grow into managerial or architectural roles over time.

Nice to Have:
●  Conversational German Skills
●  Experience in the Automotive Industry
Why COS?
●  Impactful Role in Engagement and Growth: From day one, you'll be integral to our mission to drive user engagement and help shape the future of Europe’s automotive market.
●  Professional Development: We provide a detailed onboarding program, systematic feedback cycles, and individual coaching to support your growth.
●  Choose Your Gear: Work with the tools you prefer—MacBook or Windows laptop, plus any necessary software.
●  Join the COS Family: Be part of a motivated team with a unique spirit, ambitious goals, and plenty of fun team events.
●  Diversity and Inclusion: We prioritise creating a diverse, inclusive environment where everyone feels comfortable and respected.
If you're excited about making an impact on engagement and growth with high-performance backend technologies, we’d love to meet you!