Full Stack Engineer (gn) Frontend

alcemy GmbH


alcemy was founded 1.5 years ago to tackle the massive CO2 footprint of the cement and concrete industry. Concrete is used everywhere, for building homes or for infrastructure like roads, bridges, and tunnels. However, concrete is responsible for 8% of worldwide carbon emissions. This is due to its most expensive and important ingredient: Clinker. Concrete contains excessive clinker to compensate for today’s error-prone, manual production process.

We’re building a predictive control AI that automatically adjusts the mixture for every batch, minimizing the required clinker, to make green concrete at unparalleled cost. Our big goal is to pioneer the scalable production of concrete where 50% of the clinker is replaced with abundantly available, cheap and CO2-free natural limestone.

We are a team with ambitious but humble individuals who value continuous learning, motivated to move the worldwide CO2 needle -- come join us or kindly share with others.

As a

Full Stack Engineer (gn) Frontend

at alcemy, you will own our whole web-application and significantly contribute to

  • Driving up customer engagement by implementing features you have helped specifying in collaboration with our product manager upfront.
  • Improving our customer satisfaction by developing data visualizations that will support building trust in our machine learning algorithms as well as optimizing loading times making our product more fun to use
  • Our growth by executing and improving the technical web-app onboarding for our new customers
  • Ensuring a high customer retention rate by owning all our user tracking in Kibana making sure business and product always have the insights they need to keep our customers happy

Besides having ownership of our entire web-application this role poses a great opportunity in working within building and maintaining a data-heavy solution at the intersection with machine learning.


The Team

You’ll join a team where everyone - including you - is curious and striving to improve our processes, infrastructure, and customer experience. We are passionate about helping our customers and always approach them and each other in a supportive and appreciative way. We value sustainability and try to integrate and improve that in our office life as well. Our plans to reduce carbon emissions are big. To accomplish them we have to grow as an organization and as individuals, which is why we appreciate giving and receiving feedback.

The 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 our docker services run on Amazon ECS. The backend and machine learning tasks use Python, Flask, and PostgreSQL, as well as Python's numeric and machine learning ecosystem (NumPy, pandas, scikit-learn, scikit-opt, pytorch, etc.). Our customer-facing web app is implemented in Dash/Plotly which allows us to prototype quickly and enables us to integrate the machine learning models directly. Furthermore, we emphasize continuous integration and development to ensure a working production environment.

Your Profile

  • 3+ years experience in full stack software development with Python and JavaScript
  • You have experience with React or similar frameworks
  • Experience with Dash and knowledge in data visualization is a plus
  • You appreciate software craftsmanship, clean code, and design principles
  • You are fluent in English, with elementary German skills

Within 1 month you will

  • Complete our onboarding and get guided through our development and CI/CD stack
  • Clone your personal copy of our entire production tech stack in our AWS cloud, including frontend, backend, and the machine learning pipeline that you can poke and dismantle at your own liking
  • You will inevitably learn a lot about cement production and the intricacies of cement data
  • Most likely deploy your first code to production

Within 3 month you will

  • Take ownership of our customer-facing web application
  • Know your way around our entire tech stack
  • Implement and ship your first major feature
  • Help with the tech onboarding of new cement customers

Within 6 month you will

  • Contribute to major infrastructure improvements and improvements to our database structure
  • Have responsibility for estimating time and technical scope of new major features as well as their implementation
  • Have significantly reduced the loading times of our web application
alcemy GmbH
Choriner Straße 83
10119 Berlin
Herr Leopold Spenner
(Ursprünglich) veröffentlicht am: 

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