Senior Backend Engineer

5-7 years, full-time, Berlin

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

You are the right fit for the role 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


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

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 etc.
  • You’ll probably learn how to say “Hi” in 20 more languages

"Practicing can be difficult when you’re not surrounded by people who speak the language you’re trying to master. Tandem aims to solve the problem for you by connecting you with a native speaker."

"Tandem is onto something. It certainly feels like a pretty charming language practice community, with lots of polite and enthusiastic comments left on people’s profiles as user reviews."

"If you’re ready to move onto the next level with your language and want to speak to a native, then Tandem is worth checking out."