.Company DescriptionEtsy is the global marketplace for unique and creative goods. We build, power, and evolve the tools and technologies that connect millions of entrepreneurs with millions of buyers around the world. As an Etsy Inc. employee, whether a team member of Etsy, Reverb, or Depop, you will tackle unique, meaningful, and large-scale problems alongside passionate coworkers, all the while making a rewarding impact and Keeping Commerce Human.What's the Role?As a Sr. Software Engineer in the Audience & Signals squad within our Growth group, you will play a critical role in enhancing our Ad targeting and optimizing Ad campaign performance. You will collaborate with cross-functional teams to build scalable, high-performance software solutions that integrate seamlessly with our marketing stack, enabling our marketing and analytics teams to send marketing signals and receive campaign measurements to optimize marketing performance and make data-driven decisions.This is a full-time position reporting to Sr. Engineering Manager. In addition to salary, you will also be eligible for an equity package, an annual performance bonus, and our competitive benefits that support you and your family as part of your total rewards package at Etsy.This role requires your presence in Etsy's Mexico City office once or twice per week depending on your proximity to the office. Candidates living within commutable distance of our Mexico City office or in Guadalajara may be the first to be considered. Learn more details about our work modes and workplace safety policies here.What's this team like at Etsy?Team: 5 engineers focused on building data integrations with paid social partners (e.G., Facebook, Instagram, TikTok).Goal: Improve ad targeting and campaign performance by enabling better use of marketing signals.Collaboration: Work closely with marketing and analytics teams to achieve high-impact objectives.Teamwork: Strong emphasis on mutual support and shared success.What does the day-to-day look like?Design, develop, and maintain software solutions for Audience & Signals, including but not limited to Paid Social marketing channels, Customer Data Platforms, and data privacy with an eye on quality, using performance monitoring tooling, automated and manual testing, and observability tools to verify the correctness and quality of your code.Develop APIs and services for integration with internal systems and third-party platforms.Collaborate with data scientists and analysts to utilize data insights for channel performance improvement.Work closely with the marketing team to understand business needs and translate them into technical requirements.Contribute at all levels of our web application stack, primarily in back-end technologies. We use PHP, BigQuery, MySQL, Kafka, and Memcache, but it's okay if you don't have experience with all of these!Push code to production early and often using our continuous deployment systems