Senior Elixir Software Engineer (d/f/m)

Berlin - Engineering

Our Story:

Every year millions of people are either filing their taxes in fear or giving up on their tax refund altogether. We're working on fixing that. Our intuitive app enables anyone, regardless of education or background, to file their taxes with newfound confidence.

Spread across Berlin and Madrid, Team Taxfix is a compassionate group of solution-finders. We speak our minds openly, and with 400+ professionals from 45+ different nationalities, we're rich in ideas and voices. In five years, we've raised over 100 million euros in funding and helped people reclaim more than one billion euros.


Your team:

We utilise Elixir in the reasoning engine used to write our tax logic. Everything runs in Docker—orchestrated by Kubernetes and powered by Google Cloud Platform. Our cross-functional team structure gives developers a broad scope of our stack. We're passionate about decentralised, end-to-end ownership and deep collaboration. We live our development values by learning from one another through internal meetups, hackathons, and close collaboration.


Your responsibilities: 

  • Be part of the core Elixir development team working on our Tax Engine expert system. 
  • You will be expected to learn and excel at the implementation and optimization of AI algorithms for Automated Reasoning and Knowledge Graphs.
  • Be involved in important product decisions and work closely with the whole team to deliver top-notch Apps.
  • Be an ambassador for Elixir within the company.
  • Collaborate with teammates to resolve service interruptions and high-impact defects; manage on-call rotations.
  • You will help us to maintain a Team-First approach for collaboration within the development team in making the best decisions to build and scale our core set of services.

Our team is looking for someone who is pragmatic, applies the best software engineering principles to build simple abstractions for complex problems, and who enjoys working in an agile environment.


Your profile: 

  • Strong functional programming skills with one of these programming languages: Elixir / Erlang / Go / Haskell.
  • At least 5 years of work experience as software engineer.
  • Passion for crafting high quality and elegant code.
  • Experience developing systems in Elixir or Erlang is a plus.
  • Experience or interest in Expert Systems is a big plus
  • Previous experience building maintainable and scalable systems based on reliable and fault-tolerant services.
  • Experience of handling systems in production environments and participating in on-call duties.
  • Good understanding of how to build scalable and highly available systems
  • Experience in taking ownership.


Why Taxfix?

  • A chance to do meaningful, people-centric work with an international team of passionate professionals.
  • Holistic wellbeing with mental health coaching sessions, a discounted membership to Urban Sports Club, and supplemental child care support.
  • Employee stock options for all employees—because everyone deserves to benefit from the success they help to create.
  • Dedicated relocation and visa support for those that need it.
  • Plenty of opportunities to socialise as a team. In addition to internal tech meetups, our international team hosts regular get-togethers—virtually and in person when possible.
  • Work from abroad for up to one month every year. Just align with your team, and then enjoy your trip.


Excited? So are we. Learn more about Team Taxfix on our blog and get a glimpse of our culture below: 


At Taxfix, we believe that incredible things happen when you have a wealth of perspectives and experiences. We're proudly committed to equal employment and development opportunities no matter your gender, race, religion, age, sexual orientation, colour, disability, or place of origin. To help mitigate any potential unconscious biases, we ask that you refrain from including your picture, age, or marital status on your CV. Let your experiences speak for themselves.


Not sure if you meet all the requirements for this role? Please apply anyways. You might bring something special to the team that we hadn't previously considered.