Senior Fullstack Engineer, Babbel
Subscription-based language learning software
Open for applications
Subscription-based language learning software
1001+ employees
Open for applications
1001+ employees
Company mission
To create mutual understanding through language.
Role
Who you are
- 5+ years of backend development experience with modern distributed systems
- Strong expertise in Go and TypeScript/Node.js for building scalable APIs and services
- AWS proficiency, particularly with Lambda, serverless architectures, and cloud infrastructure
- Database expertise with both SQL and NoSQL systems, including design and optimization
- API design experience with RESTful services and understanding of cross-platform requirements
- Frontend awareness with React and TypeScript to support occasional frontend contributions
- Testing mindset with comprehensive experience across multiple testing levels
- System design skills for building engagement and personalization features at scale
- Excellent English communication skills for our international team
- User-focused approach understanding how backend decisions impact user engagement
What the job involves
- We are looking for a Senior Fullstack Engineer to join our Team in Berlin
- Join Babbel's mission to create mutual understanding through language! As a Senior Fullstack Engineer on our cross-functional team, you'll be the driving force behind the systems that power engagement-focused features for millions of language learners worldwide
- You'll own backend architecture and development while occasionally supporting frontend initiatives, working closely with iOS, Android, frontend engineers, and design teams to deliver seamless user experiences. Your work will be the foundation for features that help users visualize their progress and stay motivated on their language learning journey
- Architect and build robust backend systems using Go and TypeScript that power user engagement and personalization features
- Design and implement APIs that serve progress visualization and motivational features across web and mobile platforms
- Develop serverless solutions using AWS Lambda and other cloud services to ensure scalability and performance
- Support frontend development when needed, contributing to React/TypeScript features to maintain platform parity
- Collaborate cross-functionally with product managers, designers, and platform engineers on technical architecture decisions
- Own database design and optimization for both SQL and NoSQL systems supporting user progress tracking
- Drive testing practices across unit, integration, contract, and E2E levels for backend services
- Monitor and optimize system performance, health metrics, and infrastructure reliability
- Balance technical debt with delivery speed while maintaining high-quality backend systems
Our take
Babbel is one of the leading lights in the language eLearning sector. Its premium subscription-based online learning resources cover over a dozen predominantly European languages, at all proficiency levels. They include interactive lessons and podcasts - all developed and delivered by professional educators and linguists.
Learning languages online has become big business in recent years, and this has led to a surge of VC investment in the sector. This diversified the field of competition, tripling revenue for smaller rivals like Busuu and driving up engagement on online tutoring sites. It has ramped up pressure on incumbents like Babbel, and its better established (but pricier) competitor Rosetta Stone, to diversify their offerings.
To get there, Babbel has taken a smart cue from live tutoring sites like Preply, which also saw a surge in engagement over recent years. Babbel has launched its own live tuition offering, and additional B2B services, demonstrating a savvy use of its leading position and strong resources to keep a tight grip on its substantial market share.
Kirsty
Company Specialist at Welcome to the Jungle
Insights
22% employee growth in 12 months
Company
Funding (last 2 of 3 rounds)
Jul 2015
$22m
SERIES C
Mar 2013
$10m
SERIES B
Total funding: $33.3m
Company benefits
- 30 vacation days and flexible working hours
- BVG card or Swapfiets bike
- Jobbatical and Sabbatical options
- Many internal & external learning opportunities to choose from
- A yearly Learning & Development budget
- Visa and relocation assistance
- Full access to Babbel & Babbel Live classes
- Modern office in the heart of buzzing Berlin equipped with a family, music, faith and nap room
- Various internal communities to be part of including the Femgineers, DEI Ambassadors, Accessibility & Disability Group and more
Company HQ
Friedrichshain, Berlin, Germany
Leadership
Markus Witte
(Executive Chairman & Co-Founder)Currently a Partner at Wachstumsbegleitung, a Fellow of JoinPolitics and was Previously an Independent Board Member at Blinkist.
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