Software Engineer II

Overview

The Communications Intelligence Engineering team builds the data and machine learning foundations that power Wayfair’s customer communications ecosystem. We enable intelligent decisioning, personalization, experimentation, and performance measurement across marketing and lifecycle channels. Our systems operate at scale and directly influence customer engagement, retention, and lifetime value.

What You’ll Do

• Design, build, and maintain scalable backend systems and data pipelines supporting customer communications intelligence.
• Develop and optimize batch and real-time processing workflows using modern data platforms (e.g., BigQuery, Spark, Airflow).
• Productionize machine learning models and scoring services that power personalization, prioritization, and send-time optimization.
• Partner with Data Science, Product, and CRM stakeholders to translate business problems into scalable technical solutions.
• Ensure high availability, performance, and observability of systems (e.g., SLA tracking, latency monitoring, data quality validation).
• Contribute to experimentation frameworks (A/B testing) and support accurate performance measurement.
• Participate in code reviews, technical design discussions, and operational incident resolution.
• Continuously improve platform reliability, scalability, and engineering standards.
  
  

• Bachelor’s or Master’s degree in Computer Science, Engineering, or related technical discipline.
• 2+ years of experience in software engineering, data engineering, or ML platform development.
• Strong proficiency in at least one programming language (Python, Java, or Scala preferred).
• Solid SQL skills and experience working with large-scale data warehouses.
• Familiarity with distributed systems, ETL/ELT pipelines, and workflow orchestration frameworks.
• Understanding of ML lifecycle concepts including model training, evaluation, and deployment.
• Strong analytical thinking and ability to work in cross-functional teams.
• Effective written and verbal communication skills.
  
  

• Experience working on marketing tech, CRM, or customer engagement platforms.
• Exposure to feature stores or ML serving infrastructure.
• Experience with experimentation platforms and metrics-driven product development.
• Familiarity with cloud platforms and modern data tooling.
  
  

Wayfair is fully committed to providing equal opportunities for all individuals, including individuals with disabilities. As part of this commitment, Wayfair will make reasonable accommodations to the known physical or mental limitations of qualified individuals with disabilities, unless doing so would impose an undue hardship on business operations. If you require a reasonable accommodation to participate in the job application or interview process, please let us know by completing our Accomodations for Applicants form.

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About Wayfair Inc.

Wayfair is one of the world’s largest online destinations for the home. Whether you work in our global headquarters in Boston, or in our warehouses or offices throughout the world, we’re reinventing the way people shop for their homes. Through our commitment to industry-leading technology and creative problem-solving, we are confident that Wayfair will be home to the most rewarding work of your career. If you’re looking for rapid growth, constant learning, and dynamic challenges, then you’ll find that amazing career opportunities are knocking.

No matter who you are, Wayfair is a place you can call home. We’re a community of innovators, risk-takers, and trailblazers who celebrate our differences, and know that our unique perspectives make us stronger, smarter, and well-positioned for success. We value and rely on the collective voices of our employees, customers, community, and suppliers to help guide us as we build a better Wayfair – and world – for all. Every voice, every perspective matters. That’s why we’re proud to be an equal opportunity employer. We do not discriminate on the basis of race, color, ethnicity, ancestry, religion, sex, national origin, sexual orientation, age, citizenship status, marital status, disability, gender identity, gender expression, veteran status, genetic information, or any other legally protected characteristic.

Your personal data is processed in accordance with our Candidate Privacy Notice (https://www.wayfair.com/careers/privacy). If you have any questions or wish to exercise your rights under applicable privacy and data protection laws, please contact us at dataprotectionofficer@wayfair.com.