Senior Software Engineer (d/f/m)

Madrid - Software 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 out freely, and with 500+ professionals from 60+ different nationalities, we're rich in ideas and voices. In five years, we've raised over 300 million euros in funding and helped people claim more than one billion euros.


Your team: 

We trust in Internal Open Source because it cultivates a strong spirit of collaboration and fast evolution while maintaining a high standard of quality. This way of working is possible by using the universal language JavaScript, specifically React, React Native and NodeJS. Everything on our backend runs in Docker—orchestrated by Kubernetes and powered by Google Cloud Platform.

You will be joining our talented multidisciplinary Operations Services Group which works on the key technology enabling us to scale globally as an organisation. 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. Our teams are free to choose how they work and what tools they use to fulfil their tasks.


Your responsibilities: 

  • Collaborating with your team and business stakeholders to work towards achieving the company’s and team’s goals.
  • Contribute to technical decisions and strategy to further the long-term product vision.
  • Work on unblocking unique challenges for our teams to improve the user experience.
  • Be involved in key product decisions and work close to the whole team to create intuitive and reliable apps.
  • Build market-standard quality software that can scale to the ceiling.
  • Contribute to discover and tackle technical debt that can prevent us from reaching our ambitious performance objectives


Your profile:

  • +5 years development experience with JavaScript (NodeJS, React or other modern JS frameworks)
  • Passionate about writing maintainable and elegant code.
  • Been working with Git, GitHub/Gitlab, and CI/CD.
  • Have good understanding of event-driven architectures (pub/sub).
  • A pragmatic person with a strong positive attitude.
  • Somebody who can work autonomously and overcome challenges with passion.
  • Show curiosity and passion to continue learning.
  • High levels of customer empathy and eagerness to support other engineers


Why Taxfix? 

  • A chance to do meaningful, people-centric work with an international team of passionate professionals.
  • Holistic wellbeing with free mental health coaching sessions, yoga, and a discounted membership to Urban Sports Club.
  • A monthly allowance to spend on home support services, including childcare, housekeeping, pet sitting, tutoring, and elderly care.
  • Employee stock options for all employees—because everyone deserves to enjoy the success they help to create.
  • 30 annual vacation days and flexible working hours.
  • A generous learning budget to support your personal and professional development and guidance from our internal L&D experts.
  • Work from abroad for up to six weeks every year. Just align with your team, and then enjoy your trip.
  • We welcome Taxfixers in our office at 20% of their bi-weekly capacity to offer high flexibility and foster community building. All teams have the opportunity to define the combination of remote and in-office work that suits their needs best.
  • Plenty of opportunities to socialise as a team. Together with internal tech meetups, our international team hosts regular get-togethers—virtually and in person when possible.

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.