Senior Backend Engineer // Tandem

September 6, 2019

Tandem is the leading global language learning community. Our mission is to empower everyone, everywhere to master any language.

The Tandem app has been named one of Google Play’s “Best Apps of 2017” and Apple’s “Best Apps of 2015.” It has been downloaded more than 7 million times, with members in over 180 countries. We are a highly international and very experienced team, based in Berlin and backed by top European investors.

As a Senior Backend Engineer, you will play a crucial role in building and scaling a global consumer product.

Your role will be to:

  • Develop and maintain the existing application and API
  • Code new product features and design efficient solutions that scale
  • Monitor running server-side workloads (e.g. using NewRelic, LogzIO, CloudWatch)
  • Write backend integration tests
  • Design and write storage/database schema (SQL & NoSQL)
  • Work on infrastructure projects
  • Discuss technical new features, trade-offs, provide estimates, deploy your own code and write documentation
  • Implement pragmatic solutions that impact millions of users

To succeed you should have deep experience in:

  • PHP 7
  • MVC OOP (any framework)
  • JSON-RPC APIs
  • Docker, Composer, docker-compose, writing/changing complex Dockerfiles, Puppet
  • Git, merging, rebasing, branching
  • Integrating with 3rd party API‘s (e.g. Facebook, Google, Apple, Stripe, AliPay, WeChat, Baidu)
  • AWS ECR, EC2, ELB, VPC, R53, RDS, ElastiCache, S3, SQS, SNS, DynamoDB, Lambda, IAM
  • CI/CD – AWS CodePipeline (Github, CodeBuild, CodeDeploy), Blue/Green
  • RabbitMQ, MQTT/AMQP
  • MySQL, Redis, ElasticSearch, ManticoreSearch / Sphinx

You will be a great fit if:

  • You have contributed to open-source projects and have built your own framework or libraries before
  • You know or have used Swoole/Swoft/React-php, Symfony, Supervisord, Beanstalkd, PHPUnit
  • You are interested in CNCF and AWS
  • You are self-organized, highly responsible and solution-oriented
  • You are familiar with DevOps (e.g. bash, nginx, php-fpm, Debian& Alpine Linux)
  • You are familiar with algorithms, design patterns and their implementations
  • You are a language nerd (human and programming), an (ex)gamer or twitch regular, who knows the latest memes and symfonic metal 🎶
  • You are passionate about building high performing backend applications

The benefits:

  • The chance to join a friendly, highly experienced and exceptionally talented team early on
  • Competitive remuneration
  • An inspiring office at Rosenthaler Platz, in one of Berlin’s Startup hotspots
  • German lessons in office and free access to our language tutors on Tandem
  • Free choice of your IT setup
  • Relocation assistance
  • Team lunches, excursions, drinks, great coffee, office snacks, board games sports club membership etc.
  • You’ll probably learn how to say “Hi” in 20 more languages
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Tandem

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