Backend Developer C#/Python - Data Analytics Platform (f/m/d) - Cologne, Paderborn or remote


is Germany's best-known AI company. We develop neural networks to help people work with language. With DeepL Translator, we have created the world's best machine translation system and made it available free of charge to everyone online. Over the next few years, we aim to make DeepL the world's leading language technology company.

Our goal is to overcome language barriers and bring cultures closer together.

What distinguishes us from other companies?

DeepL (formerly Linguee) was founded by developers and researchers. We focus on the development of new, exciting products, which is why we spend a lot of time actively researching the latest topics. We understand the challenges of developing new products and try to meet them with an agile and dynamic way of working. Our work culture is very open because we want our employees to feel comfortable. In our daily work we use modern technologies - not only to translate texts, but also to create the world's best dictionaries, and solve other language problems.

When we tell people about DeepL as an employer, reactions are overwhelmingly positive. Maybe it's because they have enjoyed our services, or maybe they just want to get on board with our quest to break down language barriers and facilitate communication.

What will you be doing at DeepL?

As part of our highly motivated team that values pragmatic and elegant solutions, you will develop C# backend services running on .NET Core on Linux. You will develop efficient solutions for data processing, python components for downstream tooling and analysis, as well as automation of our key processes. Your job is to keep an overview of our pipeline, maintain and improve our software, and help the team decide on architecture and technologies. 


Your responsibilities

  • Creating and testing APIs for our data pipelines 
  • Implementing of software for internal tooling and our streaming pipelines 
  • Managing automation and deployment for our software using Gitlab CI, ArgoCD and Kubernetes 
  • Working with data technologies such as: Kafka and Clickhouse 
  • Defining new requirements and constantly challenge our ideas 
  • Last but not least, you are not afraid of trying new technologies and ways even if StackOverflow says it can't be done

What we offer

  • Data at scale from products used by more than 100 million people worldwide  
  • The chance to design and build state-of-the-art APIs and tools 
  • Our own analytics and experimentation platform - far beyond the limitations of standard web analytics platforms 
  • You get the chance to work and play with: datawarehouses (Clickhouse), configuration management (Ansible), container orchestration (Kubernetes) and CI/CD (Gitlab CI) 
  • Interesting challenges: design and programming at the highest level 
  • A friendly, international, and highly committed team with a lot of trust and very short decision making processes 
  • Meaningful work: We break down language barriers worldwide and bring different cultures closer together 
  • A comfortable office in Cologne or Paderborn (or suitable equipment for your home office) and a lot of flexibility

About you

    • 2+ years of industry experience as a software developer
    • A university degree in computer science, information systems or a similar technical field or equivalent experience 
    • Expert in C#; experience in Python desirable 
    • A solid understanding of SQL 
    • Familiar with the processing of unstructured and structured data at scale 
    • You know your way around Linux and can debug a failing system 
    • You have worked with containers (like Docker) and automated their creation 
    • Hands-on experience with event streaming and especially Apache Kafka are a plus 
    • Good communication and team player skills 
    • Fluent in English, German is a plus

      We are looking forward to your application!