Senior Software Engineer / Architect
Posted Apr 25, 2026
As a Senior Software Engineer at Wayfair, you will be a vital member of the engineering organisation, contributing to the development and enhancement of a diverse portfolio of applications and systems. Your role will involve working closely with engineering teams to produce high-quality code, contribute to key architectural decisions, and offer valuable technical guidance. You will play an important part in shaping the team's technical direction, proactively addressing potential technical challenges, and promoting a culture of continuous improvement within an Agile setting. This is an opportunity to engage in solving complex problems at scale and make a tangible impact on the customer experience and Wayfair's ongoing success. Responsibilities:
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Manage services that transmit user activity data in a privacy-safe approach to advertising partners, ensuring precise ad targeting. - Oversee services for tracking performance data downloads and marketing campaign information, enhancing data science models. - Build event-driven systems using Kafka, PubSub, and real-time data streams to power automated messaging, feedback loops, and decisioning workflows. - Develop and maintain scalable RESTful APIs and Spring Boot-based microservices for integration across marketing automation systems, customer data pipelines, and external vendors. - Enhance platform reliability and observability by building monitoring dashboards, SLA enforcement metrics, and automated anomaly detection for throughput, latency, and deliverability. - Collaborate cross-functionally with Product, Data Science, and Marketing to define requirements, ensure system interoperability, and drive measurable impact in engagement and conversion. - Promote best practices in backend architecture, distributed system design, API lifecycle management, and continuous integration/deployment to raise technical excellence. Requirements: