Senior Elixir Developer (f/m/d)

zenloop GmbH (Berlin BE, Deutschland) Vor 13 Tagen veröffentlicht

About Us

zenloop — integrated experience management platform in Europe. With our Software-as-a-Service solution based on the Net Promoter Score (NPS) companies from multiple different industries are able to successfully transformate the voice of the customer into prosperous long-term relationships. Our philosophy is based on 3 statements - Listen, Understand and Act.

Key features:

  • collecting, clustering and analyzing customer feedback our clients receive through various channels
  • automatically deriving tailored and individual measures to retain satisfied customers and win back churning customers

zenloop in numbers:
150+ clients
2000+ platform users

30+ million customers’ feedbacks processed



From the tech side zenloop is

Front End: Ember, React, Bootstrap

Back End: Elixir, Phoenix; AWS, PostgreSQL, RabbitMQ, Elasticsearch, Redis
Mobile App: React Native, Typescript

How it works:

— The base of the product is Elixir project using Umbrella structure. One of the applications is based on Phoenix framework handling API requests.

— Our main storage is PostgreSQL but we also use additional mechanisms like ElasticSearch or RabbitMQ to process and serve data.

— We believe in testing. That’s why we cover our features with unit and integration tests.

— All this runs on AWS. Our DevOps team is taking care of all automation including CI tests and deployment.


Tech Team size:

35+ engineers divided into squads (5-6 engineers - BE, FE developers, QAs, DevOps’, Designers and Product Managers)




Your tasks and responsibilities:



  • Implementing new functionalities on our platform;
  • Solving complex programming challenges using functional programming languages (Elixir);
  • Working with AWS Cloud;
  • Doing regular code reviews/PR reviews for your colleagues;
  • Maintaining existing code and bug fixing (near 30% of tasks);
  • Writing unit, integration and E2E tests.


That's what we offer:

  • A fast learning environment with the opportunity to grow together with us as a company and our highly motivated and international team;
  • Comprehensive and structured onboarding as well as regular feedback sessions to support your individual development;
  • Flat management and clear work processes;
  • Guaranteed personal training budget of 500 Euros per year;
  • Full technical equipment (MacOS).

What should you expect from the recruiting process in our company:

1. You send us your CV or apply with your Linkedin profile

2. If your profile meets our expectations a recruiter sends you an invitation for a Cultural interview via Zoom (1 hour).

3. If both sides are satisfied and interested in continuing, we are scheduling a technical interview with our Tech Lead (1 hour). No need to do long coding tasks.

4. If you pass the technical interview, we will request references from your previous workplaces.

5. If all is positive we will make you an offer and once you agree, you will receive the contract within 48 business hours.







Who are we looking for?
You're the right person for us if you...

  • are a back-end or full-stack developer with a couple of years of experience (3+)
  • are familiar with Elixir language and ecosystem (Phoenix)
  • worked on a production application in AWS or Heroku
  • worked with RDBMS like PostgreSQL
  • have experience in building server-side apps, using the MVC pattern or something similar
  • have a solid understanding of how web applications work
  • express interests in functional programming and have some functional programming experience
  • worked with or learned about RabbitMQ or other message brokers
  • have an understanding of distributed systems and resilient applications
  • have practical knowledge of how to communicate with REST API
  • are familiar with agile methodologies (Scrum, Kanban);
  • share our values: transparency, flat structure, the culture of directness, quality over speed, asynchronous work.


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