happyhotel

Senior Machine Learning Engineer (m/f/d)

Offenburg FullTime On-site
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Job Description

YOUR ROLE As a Senior Machine Learning Engineer, you will work in the Pricing & Revenue context, focusing on data-driven improvements for forecasting, pricing logic, and product insights. You will develop analyses and models that demonstrate measurable impact in our product – with thorough evaluation, a solid data foundation, and pragmatic implementation. You will collaborate closely with Product & Engineering. YOUR RESPONSIBILITIES - Model Evolution: You will develop and optimize our forecasting and pricing models as well as data-driven decision logics, always with methodical pragmatism and a strong focus on impact. - Signal Hunting: You will work with time series, demand signals, and heterogeneous data sources. You define features and labels carefully to leave no chance for leakage. - Measurement & Guardrails: You are responsible for evaluation through backtesting, robust metrics, and segmentation. You support holdouts and A/B logics and maintain the balance between offline and online performance. - ML Engineering Best Practices: You raise standards for backtesting, reproducibility, and versioning. For us, it's: Engineering quality instead of notebook-only. - Data Visibility: You enhance dashboards and reports that make model and business KPIs transparent. Your focus is always on the highest data quality. - Smart Workflows: You drive reproducible workflows (versioning, clear pipelines, meaningful tests) and automate recurring analyses and evaluation runs. YOUR PROFILE - Track Record: You have 4+ years of experience in data science or applied ML engineering – ideally directly in a product or business context. - Data Intuition: You possess extremely strong SQL skills and a deep sense for data quality, debugging, and consistent metrics. - Python Pro: Your Python code is clean and your analyses are transparent. Initial experience with product-oriented setups is a big plus. - Experiment Mindset: You master the basics of bias/leakage-awareness and know how to think in guardrails and offline-vs-online scenarios. - Work Style: You take full ownership of your topics. You work according to the 80/20 principle (pragmatic!), are reliable, and communicate clearly. - Entrepreneurial Spirit: You think entrepreneurially and want to truly make a difference. - Language Skills: You communicate fluently and confidently in English. Nice-to-haves – What Sets the Best Apart - Domain Expertise: You already have experience in revenue management or dynamic pricing (e.g., hotel, travel, eCommerce, or mobility). - Demand Knowledge: You are familiar with seasonality, events, lead times, and segment patterns. - Modern Stack: You have already worked with analytics engineering or warehouse tools such as dbt, Snowflake, or Met - Hands-On MLOps & Cloud: Bonus if you have hands-on skills to work with MLOps tooling and cloud infrastructure, e.g. AWS

Frequently Asked Questions

What does the Senior Machine Learning Engineer (m/f/d) role at happyhotel involve?

The Senior Machine Learning Engineer (m/f/d) position at happyhotel in Offenburg is a fulltime role. YOUR ROLE As a Senior Machine Learning Engineer, you will work in the Pricing & Revenue context, focusing on data-driven improvements for forecasting, pricing logic, and product insights. You will develop analyses and models that demonstrate measurable impact in our product – with thorough evaluation, a solid data foundation, and pragmatic implementation. You will collaborate closely with Product & Engineering. YOUR RESPONSIBILITIES - Model Evolution: You will develop and optimize our forecasting and pricing models as well as data-driven decision logics, always with methodical pragmatism and a strong focus on impact. - Signal Hunting: You will work with time series, demand signals, and heterogeneous data sources. You define features and labels carefully to leave no chance for leakage.

What skills are required for Senior Machine Learning Engineer (m/f/d) at happyhotel?

Key skills for this role include: Python, Rails, AWS, RDS, SQL, Snowflake, Machine Learning, DBT, Mlops, IOS.

What is the salary for Senior Machine Learning Engineer (m/f/d) at happyhotel?

The salary for this position is not publicly listed. You can negotiate during the interview process. Check Glassdoor or Levels.fyi for estimates.

Is the Senior Machine Learning Engineer (m/f/d) position at happyhotel remote or on-site?

This position is On-site. The role is based in Offenburg.

How do I apply for Senior Machine Learning Engineer (m/f/d) at happyhotel?

You can apply for this position directly through the employer's careers page. Click the 'Apply Now' button on this page to be redirected to the original listing. Make sure your resume is ATS-optimized. Use SpotChange's free ATS test to check.

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About This Role

Senior Machine Learning Engineer (m/f/d) at happyhotel is a fulltime ai & machine learning position in Offenburg. Key skills include Python, Rails, AWS, RDS, SQL, Snowflake, Machine Learning, DBT. Education: Associate Degree preferred. Experience: 4+ years.

This role is classified as on-site and is suitable for senior-level professionals. Ghost Score 40/100 (Possibly Stale) indicates this listing is possibly stale — verify on the employer site.

To apply, visit the official application page through the Apply Now button above. SpotChange Jobs provides AI-powered career tools including resume optimization, ATS testing, interview preparation, and salary negotiation assistance.