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BA
Babbel
20d ago

Principal Fullstack Engineer(m/w/x)

Berlin
Full-timeWith Home OfficeSenior
AI/ML

Description

As a Principal Fullstack Engineer, you will shape the technology behind impactful learning experiences, drive technical direction, and collaborate with teams to enhance learner outcomes while mentoring fellow engineers.

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Requirements

  • Extensive experience designing, building, and operating customer-facing distributed systems
  • Strong architectural judgment and communication skills
  • Deep experience with backend and fullstack systems
  • Strong product mindset connecting technical decisions to customer value
  • Proven ability to improve system-level outcomes
  • Hands-on experience with modern CI/CD and infrastructure as code
  • Track record of influencing technical direction across teams
  • Experience establishing and scaling shared platforms or engineering standards
  • Strong written and spoken English
  • Ability to mentor and coach senior engineers
  • Experience using data and feedback loops for decisions
  • Practical experience with AI-assisted development tools
  • Experience building or scaling learning platforms
  • Exposure to domain-driven design or event-driven architectures
  • Experience shaping team boundaries and operating models
  • Strong interest in technology and learning science
  • Ability to work in English

Work Experience

approx. 4 - 6 years

Tasks

  • Drive technical direction across customer-facing systems
  • Establish and scale shared patterns and standards
  • Own and improve APIs and data models for learner journeys
  • Create abstractions and platforms to enhance productivity
  • Improve delivery performance for faster and safer shipping
  • Advocate for modern engineering practices and production quality
  • Anticipate and mitigate cross-team risks and dependencies
  • Lead mission-critical initiatives from discovery to production
  • Partner with leadership to translate strategy into technical plans
  • Mentor and coach senior engineers for growth
  • Step in as an implementer to set standards and resolve issues

Tools & Technologies

TypeScriptGolangAWS

Languages

EnglishBusiness Fluent

Benefits

More Vacation Days

  • 30 vacation days

Workation & Sabbatical

  • 3-month Sabbatical

Mental Health Support

  • Family and life counseling

Flexible Working

  • Flexible working hours
  • Remote-friendly options

Learning & Development

  • Internal learning opportunities
  • Yearly learning & development budget

Other Benefits

  • Free Babbel access

Parking & Commuter Benefits

  • Mobility benefits options

Corporate Discounts

  • Discounted Urban Sports Club membership

Team Events

  • Employee communities
  • Cultural and social events
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