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Senior Node.js / Infrastructure Engineer (f/m/d)

Are you an experienced Node.js engineer capable of building your infrastructure, eager to take on new challenges?




  • Several years of experience in designing and building complex software systems
  • 5+ years of experience with Node.js
  • 3+ years of experience with PostgreSQL, MongoDB, Kubernetes, Terraform, and building infrastructure in Google Cloud
  • Expertise in designing and writing automated tests 
  • Experience performing code reviews and pair-programming with other software engineers


  • Python skills are a huge plus
  • Knowledge of Azure & AWS
  • Knowledge of the sustainability aspects of backend technology and infrastructure
  • Experience with deploying Machine Learning models
  • Familiarity with setting up monitoring and failure recovery systems


  • Technical design and implementation of the product
  • Designing, deploying and maintaining sustainable infrastructure 
  • Close collaboration with other engineers and the UX team
  • Writing clean and easily maintainable code covered by tests
  • Participation in planning and specifying the product roadmap
  • Ownership of tasks and independence in making technical decisions
  • Researching and presenting new and state-of-the-art technologies – especially regarding sustainability in tech to continuously improve the whole organization


A competitive compensation package, including:

  • A personal learning budget
  • An opt-in pension plan
  • 30 vacation days; plus additional bridge days off
  • Urban Sports Club membership

A hybrid work model with maximum flexibility, including:

  • The choice where you work 90% of the time
  • 10% of the time reserved for collaborative work as a team
  • A beautiful office environment designed for you to learn and thrive
  • Quarterly hackathons

An outstanding team, with:

  • Ownership over your projects from day one and an empowering working environment
  • A range of topic experts to support the decision-making process
  • Colleagues with diverse and highly advanced skill sets
  • A range of topic experts to support the decision-making process


The engineering culture at wattx is shaped around principles of agile software development and user-centric design. We value pragmatism over idealism, simplicity over complexity, and technological agnosticism over fundamentalism, and we are seeking people who share these values. We stay ahead of the curve by using state-of-the-art tools and technologies.

wattx operates within Construction, Manufacturing, and Prop Tech, creating a real impact while focusing on Sustainability. We are a team of engineers, data scientists, product managers, designers, and venture developers. We identify opportunity areas and then conduct research and ideation sessions. We prototype, vet, and develop the solutions that evolve from these sessions and develop them as projects with our clients from Mittelstand compaines and our broad network of partners.

We screen all applications without regard to race, ethnicity, religion, gender, sexual identity, worldview, or disability. We do not require a photograph to be attached to the CV.

Apply Here

Meet your future colleagues:

Simon Müller
Simon Müller
Marcin Balinski
Marcin Balinski
Head of Engineering
Franziska Fieke
Franziska Fieke
Frontend Engineer
Dr. Christian Schwöbel
Dr. Christian Schwöbel
Data Engineer