Data Engineer

Who you are

• Bachelor’s or master’s degree in computer science or Engineering
• Minimum of 3 years of experience as a Data Engineer or a similar role, with a consistent record of successfully delivering ML/Data solutions
• You have built production data pipelines in the cloud, setting up data-lake and server-less solutions, specifically to support building ML models
• Required hands-on experience with schema design and data modeling and working with ML scientists and ML engineers to provide production level ML solutions
• You have experience designing systems E2E and knowledge of basic concepts (lb, db, caching, NoSQL, etc)
• Strong programming skills in languages such as Python and Java
• Experience with big data processing frameworks such, Pyspark, Apache Flink, Snowflake or similar frameworks
• Demonstrable experience with MySQL, Cassandra, DynamoDB or similar relational/NoSQL database systems
• Experience with Data Warehousing and ETL/ELT pipelines
• Experience in data processing for large-scale language models like GPT, BERT, or similar architectures - an advantage
• Proficiency in data manipulation, analysis, and visualization using tools like NumPy, pandas, and matplotlib - an advantage
• Experience with experimental design, A/B testing, and evaluation metrics for ML models - an advantage
• Experience of working on products that impact a large customer base - an advantage
• Excellent communication in English; written and spoken

What the job involves

• This opening is for the Content Intelligence team within the Marketplace Business Unit at Booking.com.
• The Content Intelligence team is at the forefront of Generative AI innovation, driving solutions for travel-related chatbots, text generation and summarization applications, Q&A systems, and free-text search.
• Beyond this, the team is building a cutting-edge platform that processes millions of images and textual inputs daily, enriching them with ML capabilities.
• These enriched datasets power downstream applications, helping personalize the customer experience—for example, selecting and displaying the most relevant images and reviews as customers plan and book their next vacation
• As a Data Engineer, you’ll collaborate with top-notch engineers and data scientists to elevate our platform to the next level and deliver exceptional user experiences.
• Your primary focus will be on the data engineering aspects—ensuring the seamless flow of high-quality, relevant data to train and optimize content models, including GenAI foundation models, supervised fine-tuning, and more
• You’ll work closely with teams across the company to ensure the availability of high-quality data from ML platforms, powering decisions across all departments.
• With access to petabytes of data through MySQL, Snowflake, Cassandra, S3, and other platforms, your challenge will be to ensure that this data is applied even more effectively to support business decisions, train and monitor ML models and improve our products
• Rapidly developing next-generation scalable, flexible, and high-performance data pipelines
• Dealing with massive textual sources to train GenAI foundation models
• Solving issues with data and data pipelines, prioritizing based on customer impact
• End-to-end ownership of data quality in our core datasets and data pipelines
• Experimenting with new tools and technologies to meet business requirements regarding performance, scaling, and data quality
• Providing tools that improve Data Quality company-wide, specifically for ML scientists
• Providing self-organizing tools that help the analytics community discover data, assess quality, explore usage, and find peers with relevant expertise
• Acting as an intermediary for problems, with both technical and non-technical audiences
• Promote and drive impactful and innovative engineering solutions
• Technical, behavioral and interpersonal competence advancement via on-the-job opportunities, experimental projects, hackathons, conferences, and active community participation
• Collaborate with multidisciplinary teams: Collaborate with product managers, data scientists, and analysts to understand business requirements and translate them into machine learning solutions. Provide technical guidance and mentorship to junior team members

Benefits

• Health insurance
• Free access to Headspace for you and your loved ones
• Global Employee Assistance Program
• Meditation and Breastfeeding rooms at the office
• Booking Cares - 2 days per year to volunteer and learn
• Life insurance
• Disability insurance
• Pension plan
• Annual paid time off
• Parental leave - 22 weeks
• Grandparent leave - 10 days
• Care leave - 10 days
• Bereavement leave - up to 4 weeks
• Anniversary leave
• Working from Home Furniture and Ergonomic Support
• Working from Abroad - up to 20 days per year
• Discounts & Wallet credits to spend on our products
• Upgrade to Booking.com Genius Level 3
• Friends & Family Booking.com discount vouchers
• Free access to online learning platforms
• Development and mentorship programs to support career growth
• Access to trainings and workshops
• Team development opportunities
• Local discount programs
• Game rooms in offices
• On-site meals, coffee and snacks including vegan options