Senior Software Engineer - Marketing Data (f/m) at Delivery Hero AG (Berlin, Germany)

Everybody says that knowing your customers is key… How do we do this in Delivery Hero? 

After ordering many times with Lieferheld, last month your order got cancelled. You got disappointed and have never ordered again. 

Today you receive a funny notification in your phone, giving you a great deal on your favorite restaurant, so you decide to take advantage of it and give Lieferheld a second chance. Hopefully this time the experience will be great and you will consider ordering again. 

In order to send the right message at the right time, we rely on the order history of our customers. 

The Marketing Data team processes daily hundreds of millions of historical order data from dozens of millions of customers of the 40 countries where Delivery Hero is present. 

What algorithms and technologies do we use? How we make sure our systems can handle this load? 

Your mission: 

You will integrate the Marketing Data Team with the following responsibilities:

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• Create data pipelines to feed our RedShift cluster and marketing tools. This involves data processing in SQL and Python (pandas, petl) and connection to various marketing APIs.
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• Create data pipelines in Google Cloud using BigQuery, DataFlow, DataProc to feed our ML models which run on CloudML.
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• Implement secure and reliable API endpoints to make available the computed data.
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• Maintain and optimize our data pipelines and ML algorithms to ensure scalability.
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• Help improving our infrastructure, trying and adopting new tools.
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• Embracing development best practices. Ensuring code quality by coaching junior colleagues.
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• Our Tech Stack: python3, redshift, pandas, scikit-learn, xgboost, tensorflow, aws/gcp, BigQuery, DataProc, CloudML.
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Your skills:

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• Bachelor’s degree in Computer Science or equivalent.
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• 5+ years of software development experience with a key focus on modern web applications and cloud services.
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• You like data and you are comfortable handling lots of it.
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• You have passion for clean and beautiful code, with an eye for simplicity and pragmatism.
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• You firmly believe in lean and agile development.
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• You speak HTTP and REST like your mother tongue.
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• You have experience with complex SQL queries and abstract DB layers (SQLAlchemy, ...)
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• You have strong infrastructure skills (CI / CP setups on AWS / Google Cloud).
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• You understand that quality is not ensured solely by the QA engineer, but by the team.
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• You are creative and independent to lead projects autonomously.
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• You enjoy mentoring less experienced developers.
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• You have excellent communication skills in English.
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• Nice to have: knowledge of Facebook and Adwords APIs, Python data manipulation libraries, scikit-learn or tensorflow is a plus.
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We offer you:

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• International working atmosphere and cross-cultural teams.
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• Goal oriented environment.
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• Flexible working hours.
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• Great career opportunities.
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• Safety of a large company: pension scheme and stability.
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• Nice work environment and English as working language.
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• For applicants from abroad: relocation package and German lessons. 
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Have we caught your attention? Then please send us your application including cover letter, CV, salary expectations and earliest starting date. We’re looking forward to your application! 

by via developer jobs - Stack Overflow