Senior Fullstack Engineer (all genders)

Babbel.com - Lesson Nine GmbH; Berlin; Vor Ort; EUR 70.000 - 90.000; Vollzeit

Zusammenfassung

A language learning platform in Berlin seeks a Senior Fullstack Engineer to develop engaging features for millions of users. You will design backend systems, create APIs, and collaborate across teams to enhance user experiences. The ideal candidate has 5+ years of backend experience, proficiency in Go and TypeScript, and knowledge of AWS. This role offers flexible working hours and 30 vacation days.

Leistungen

30 vacation days plus family and life counseling

Flexible working hours

Jobbatical options

Fully equipped office

Yearly development budget

Free language courses

Mobility benefits

Urban Sports Club membership discounts

Participation in diversity and inclusion communities

Qualifikationen

• 5+ years of backend experience with distributed systems.
• Proficiency in Go and TypeScript/Node.js.
• Experience with AWS, especially Lambda and serverless architectures.
• Database expertise in SQL and NoSQL.
• API design experience with RESTful services.
• Strong testing background.

Aufgaben

• Design and build robust backend systems with Go and TypeScript.
• Create APIs for progress visualization.
• Implement serverless solutions using AWS.
• Support frontend development with React.
• Collaborate with product, design, and platform teams.
• Manage database design and optimization.
• Implement testing practices.
• Monitor and optimize system performance.
• Balance technical debt and delivery speed.

Kenntnisse

Backend experience with distributed systems

Proficiency in Go

Proficiency in TypeScript/Node.js

Experience with AWS

Database expertise in SQL and NoSQL

API design experience

Frontend awareness with React

Strong testing background

System design skills

Excellent English communication skills

User-focused mindset

Tools

AWS (Lambda, Kinesis, DynamoDB)

SQL

NoSQL

React

TypeScript

Jobbeschreibung

We are seeking a Senior Fullstack Engineer to join our team in Berlin.

Join Babbel's mission to foster mutual understanding through language! As a Senior Fullstack Engineer, you will be instrumental in developing engagement features for millions of language learners worldwide.

Your responsibilities include owning backend architecture, supporting frontend initiatives, and collaborating with cross-functional teams to deliver seamless user experiences. Your work will underpin features that visualize progress and motivate learners on their language journey.

Responsibilities:

• Design and build robust backend systems with Go and TypeScript for engagement and personalization
• Create APIs to support progress visualization and motivational features across platforms
• Implement serverless solutions using AWS Lambda and other cloud services for scalability
• Support frontend development with React/TypeScript when needed
• Collaborate with product, design, and platform teams on technical decisions
• Manage database design and optimization for SQL and NoSQL systems
• Implement testing practices across various levels
• Monitor and optimize system performance and reliability
• Balance technical debt and delivery speed while maintaining quality

Qualifications:

• 5+ years of backend experience with distributed systems
• Proficiency in Go and TypeScript/Node.js
• Experience with AWS, especially Lambda and serverless architectures
• Database expertise in SQL and NoSQL
• API design experience with RESTful services
• Frontend awareness with React and TypeScript
• Strong testing background
• System design skills for scalable engagement features
• Excellent English communication skills
• User-focused mindset

Our Tech Stack:

• Backend: Go, TypeScript/Node.js
• Cloud: AWS (Lambda, Kinesis, DynamoDB, RDS, etc.)
• Databases: SQL and NoSQL
• Frontend: React, TypeScript
• Testing: comprehensive levels

If you're excited to build systems connecting people across cultures through language, we'd love to hear from you!

Perks include:

• 30 vacation days plus family and life counseling
• Flexible working hours, Jobbatical options, and a fully equipped office
• Learning opportunities with a yearly development budget and free language courses
• Mobility benefits and Urban Sports Club membership discounts
• Participation in diversity and inclusion communities and events

Diversity at Babbel

We encourage applications from underrepresented groups in tech. We value skills, qualifications, and alignment with our values. Please share your pronouns and any accessibility needs in your application.