Senior Machine Learning Engineer

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Senior Machine Learning Engineer

Are you fascinated by machine learning and building robust machine learning pipelines which process massive amounts of data at scale and speed to provide crucial insights to the end consumers?

This is exactly what we, the Machine Learning Engineering group in Expedia, do.  Our mission is to partner with our Machine Learning Science counterparts to use AI/ML to collaboratively transform Expedia’s data assets into intelligent and real-time insights to support a variety of applications which are used by 1000+ market managers, analysts, our supply partners, and our travelers.  Our work spans across a variety of datasets and ML models and across a diverse technology stack ranging from PySpark, Java/Scala, Spark, Airflow, Databricks, Kubernetes, AWS and much more!

What you’ll do:

• Work in a cross-functional team of Machine Learning engineers and Data scientists to lead the design and development of large scale batch and real-time ML Services

• Design, implement and deploy large scale data pipelines (both real time and batch) and back-end services

• Lead the end-to-end product life cycle for mid to large machine learning/data engineering projects: Design, development, model validation/testing, model deployment, and providing operational excellence and support

• Find and advocate for Industry standards and best practices in machine learning engineering methodologies, techniques, and technologies

• Contribute to advancing the team's design methodology and quality programming practices and mentor junior team members to adapt best practices

• Innovate and implement new ideas to solve complex software problems and prototype creative solutions to enable product MVP's

• Independently understand scheduling, cost constraints, and impact to other teams; and make resource and architectural trade-offs based on those factors

• Anticipate and prevent problems and roadblocks, before they occur, and present technical issues and their impact to leadership

• Lead, coordinate, and collaborate on multiple concurrent and complex cross-organizational initiatives

• Effectively build and maintain a network of key contacts across company, and leverage these contacts to achieve results

• Communicate and work effectively with geographically distributed cross functional teams 
  Drive for continuous improvement in software and development process within an agile development team

Who you are:

• Bachelor's or Master's Degree in software engineering, computer science, informatics or in a related technical field; or equivalent related professional experience

• 8 to 10+ years of work experience in software engineering

• 4+ years experience in designing and implementing BigData/ML applications (data ingestion, real-time data processing and batch analytics) in Spark Streaming, Kafka, Hadoop

• Experience on Hadoop-ecosystem technologies in particular MapReduce, Spark, Hive, YARN

• Experience in productionizing machine learning models including feature engineering, model scalability, model validation, and model deployment

• Solid server-side programming skills in multiple languages (Scala/Java and Python), and hands-on experience in OOAD, design patterns, NoSQL and SQL

• Strong experience with cloud computing platforms (AWS, EMR, Kubernetes, Docker)

• Strong experience working with ML platforms (Databricks, SageMaker, etc.)

• Solid knowledge in SQL (T-SQL/PL-SQL), ETL and data modelling

• Experience with microservice architecture, and design

• Experience on machine learning toolkits like spark mllib, H20, scikit-learn, R and ML techniques

• Strong command with machine learning libraries such as PyTorch and Tensorflow and knowledge of common integration patterns for serving inference with them

• Familiar with training models with very large datasets- strategies for parallelizing and optimizing the training jobs especially with GPUs or large-compute

• You have hands-on experience with workflow management tools (e.g. Airflow)

• Familiar with machine learning inference at scale. Can instrument streaming or parallel inference tasks to accommodate large traffic or volume of data

• Experience working with Agile/Scrum methodologies

• Experience on Recommender Systems is a plus.

• Familiarity with the e-commerce or travel industry

About Expedia Group 

Expedia Group (NASDAQ: EXPE) powers travel for everyone, everywhere through our global platform. Driven by the core belief that travel is a force for good, we help people experience the world in new ways and build lasting connections. We provide industry-leading technology solutions to fuel partner growth and success, while facilitating memorable experiences for travelers. Expedia Group's family of brands includes: Brand Expedia®, Hotels.com®, Expedia® Partner Solutions, Vrbo®, trivago®, Orbitz®, Travelocity®, Hotwire®, Wotif®, ebookers®, CheapTickets®, Expedia Group™ Media Solutions, Expedia Local Expert®, CarRentals.com™, and Expedia Cruises™.  

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