Data Engineer

bei alcemy
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Data Engineer

Berlin, Berlin, Germany Cement Full time


Help us decarbonize the cement and concrete industry.

alcemy was founded to reduce the massive CO2 footprint of the cement and concrete industry. Concrete is humanity's second most used material by volume and is responsible for almost 9% of global CO2 emissions.

We can change this! We leverage machine learning to provide smart production control software to the concrete supply chain to improve efficiency and allow for the production of low-carbon cement and concrete. Our software is used 24/7 in cement and concrete plants to optimize production and reduce carbon emissions today.

What you’d be doing…

  • You will own and operate our state-of-the-art data ingest application to ensure we process our customers’ data correctly.
  • You will play a big part in making sure new customers are onboarded successfully, thereby directly contributing to our growth as a company, as well as customer happiness.
  • You will analyze and explore our customers’ data to increase trust and engagement in our product.
  • The position is at the intersection of data engineering and data science. This means you can shine both with your software engineering skills, but also dive deep into the data to solve ad-hoc customer problems.
  • We’re a small start-up, so you’ll also have the opportunity to explore and work in other areas. For example, one of our front-end engineers recently took the responsibility for moving our web app deployment over to kubernetes.

You’d be a great fit if…

  • You care about climate change.
  • You have experience in professional software development, ideally with data intensive applications using Python (pandas) and SQL (PostgreSQL).
  • You have experience analyzing data and creating insightful data visualization.
  • You can communicate clearly and are patient with non-techies.

Even better:

  • You test your code and have experience with modern CI/CD pipelines.
  • You have experience with AWS (esp. S3, SQS, SNS, Cloudwatch), terraform, and kubernetes.
  • You have a basic understanding of machine learning.

We offer

  • You can live and work remotely anywhere within the EU that's about a day of train ride away from Berlin.
    • We meet up every 9 weeks for team weeks in Berlin to work together in-person
  • VSOP equity options vested equally over 4 years.
  • 1500€/year & 3 days/quarter personal development budget
  • Mac or Linux laptop of your choice
  • 25 days of vacation
    • Company holidays between Christmas and New Years
    • An additional day of vacation for every 2 years at alcemy

Tech Stack

At alcemy, we use Amazon Web Services (AWS), which enables us to roll out our product at a fast pace. Our infrastructure is managed in terraform and everything runs on kubernetes. The backend and machine learning tasks use Python, FastAPI, and PostgreSQL, as well as Python's numeric and data science ecosystem (numpy, pandas, scikit-learn, etc.). Furthermore, we emphasize continuous integration and development to ensure a working production environment.

Working at alcemy

  • We value transparency, and direct feedback and are always open to refactoring how we work together.
  • Engineers take ownership of their features from implementation, testing through code reviews, and deployment.
  • No engineer is on-call.
  • We’ve been working hard to get a defined career progression framework in place, charting out both technical expert & management tracks.
  • We are passionate about helping our customers and always approach them and each other in a supportive and appreciative way.
  • Our team setup is hybrid, which means we have an office space in Berlin, but you can also work remotely. To ensure human connection we have a quarterly on-site team week. During those, we try to focus less on day2day work and more on including evening activities, goal setting, and strategy definition.


  • Complete our onboarding and get guided through our development and CI/CD process.
  • Clone your personal copy of our entire production tech stack in our AWS cloud, including front-end, back-end, and the machine learning pipeline. You can poke and dismantle it to your own liking.
  • You will inevitably learn a lot about cement production and the intricacies of concrete data.
  • Deploy your first code to production.


  • Take co-ownership and operate our ingest application.
  • Know your way around our back-end tech stack.
  • Analyze customer data and answer customer inquiries.


  • You have taken ownership of our ingest application and are an integral part of our customer success & operations team:
    • responsibility for estimating the time and technical scope of new major features as well as their implementation
    • present and communicate data-driven insights to our customers
    • shape our tech stack and how we work together as a team.

Hiring Process

Our hiring process is fully remote and we’ll communicate with you over email and video chat.

  • 1:1 screening call with one of our engineers
  • Complete a take-home task
  • A team fit interview (45 minutes) with 2 of your future team members
  • A technical interview (90 minutes) with 2 of our engineers

We encourage applicants from all backgrounds to apply. We also acknowledge how stressful interviews can be. Let us know if there is anything we can do to improve the process so you can demonstrate your skill set.

Note: We currently do not offer visa sponsorships, so you have to have a valid work visa for the EU.

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