Senior React Developer

Job description

Chatterbug is building the internet’s best way to learn a language by empowering those who speak them: Humans! Humans build our curriculum, teach our students how to speak in one-on-one lessons, and now we are looking for a few more humans to join us in making Chatterbug the best it can be.

Check us out at



About the job

We believe that design and usability are the foundation of an excellent product experience. Our small Product/Design and Engineering teams work together very closely all the way from concept to final implementation. We use an iterative process, release often, and stay open to feedback.


As we are starting on some major product improvements, we are looking to add an experienced React developer to join our team in order to expand the scope of what's possible with Chatterbug. Our web and mobile app are written in React and React-Native respectively and we work on both.


About you

You’re a multi-talented engineer who wants to join our team building our language-learning product and infrastructure. You will be part of a small development team and have the opportunity to own major components of our systems.


You’ll ship new features to our students and tutors, you’ll help be in service of our growing curriculum development team building our language learning content, and you’ll assist in digging into technical issues in our stack.


You’re an active learner whose passions may include learning languages. (If you know a language other than English please tell us!)


About us

Although we are a small team, we have a big product. We are an experienced team with backgrounds at GitHub and other major tech companies with funding from top investors in Silicon Valley and Europe. Our team works extremely reasonable hours and we have a strong commitment to work-life balance.


Beyond language learning, we’re on a bigger mission to help make lots of jobs for people who only need one skill: how to speak their native language. We currently teach German and Spanish and French to English speakers, as well as English to Spanish speakers. Soon, we’ll be launching all of our courses for German speakers, too. We have an international team and an international product, and we’re proud of it.


Curious about how the company operates? Here’s a quick overview:


  • Remote flexibility. Our largest office is in Berlin with ~42 people, but our team is encouraged to travel and work from home when needed. Because of the vast time zone spread (9 hours now!), we focus on asynchronous communication when possible, via Slack and Basecamp.

  • Work/life balance matters. We work a full day then go home, and please set up your Do Not Disturb. That Slack message can wait, can’t it? We think so too.

  • Face time brings us together. Since we’re split up over the world, we put a lot of value on our weekly in-video “Chattermeet” all-hands meetings. We share what’s happening in the company, our product, our curriculum, and occasionally some tidbits about our lives too.

  • We value diversity. Chatterbug is an inclusive company - we embrace difference and strive for equality. We are committed to building a team that represents a variety of backgrounds, identities and perspectives. We particularly encourage parents, women, people of colour and LGBTQIA+ to apply. We’re striving to create a safe environment that’s inclusive to everyone.

  • Learning first. We have monthly breakfast meetings at our Berlin office to teach about our systems and we encourage our employees to network and be continual learners at professional events.

  • Pitch us. Ideas for our company and our product can come from all levels or layers of the organization—you just need to write it up or propose it!



Engineering at Chatterbug

Our team is spread across the US and Europe. Here’s what you can expect to see:

  • Weekly standup meetings coordinated across time zones

  • Regular 1-1 meetings with your manager

  • Short iterations with planning, estimation, and retrospectives 

  • Our Stack: React Native, GraphQL, React, ES6 on the frontend, and Ruby on Rails, PostgreSQL, and Redis on the backend.

  • WebRTC is at the heart of our business, used for all of our language lessons

  • Continuous integration / continuous deployment of your code from your first day

  • A serious commitment to testing with Jest

  • Stressless on-call rotation spread across all engineers


Benefits at Chatterbug

  • A leading role shaping a cutting edge product at a pivotal point in its development
  • We’ll pay for you to learn a language - either with us or take a class, on us. You can also elect a friend or family member to learn with us for free, too

  • 26 days paid holiday

  • Regular fun events, team dinners and an annual company summit abroad

  • A wonderful rooftop office in the heart of Berlin (with free fruit and amazing coffee!)


Want to apply?

Click the Apply for this Job button! If you have a resume, please feel free to upload it, but we're more interested in why you think Chatterbug might be a good fit for you and what you've done before. The cover letter is your chance to shine! Don't forget to list any relevant links (portfolio, links to side projects, etc). We look forward to hearing from you!


  • You live in Berlin or are willing to move here

  • Proficiency in JavaScript, CSS and React

  • Experience with React Native or excited to learn

  • At least 3 years experience as a front-end engineer

  • Have worked on a small team or desire to do so

  • The necessary communication skills and initiative to lead your own projects

Ideally you will also have:

  • Experience with GraphQL, styled-components, webpack and Babel