Retention and Engagement Marketing Developer

The Mom Project is excited to support Etsy with their search for a Retention and Engagement Marketing Developer to join their team on a contract basis. About The Role The Retention and Engagement Marketing Developer will join Etsy’s REM Operations & Insights team, working at the heart of campaign execution. In this role, you’ll focus on building, testing, and deploying automated email, push, and SMS marketing programs—ensuring every workflow, integration, and personalization element functions flawlessly to deliver high-impact retention and engagement campaigns at scale.

You will partner closely with Retention & Engagement Marketing, Analytics, Product, and Engineering teams to design, develop, and maintain robust solutions that enable automation, scalability, and deep audience segmentation. You will also work with stakeholders to continuously enhance our technical capabilities—optimizing workflows, enabling experimentation, and driving measurable improvements in campaign performance and customer engagement.

The ideal candidate is a technically skilled problem-solver with experience in marketing technology, marketing automation, and data integration. You are comfortable translating marketing campaigns into technical builds, and thrive in environments where you can collaborate cross-functionally while ensuring operational excellence at every step.

In This Role, You Will

• Build, optimize, and maintain marketing workflows, templates, and automations across owned channels (email, push, SMS).
• Develop and implement personalization and dynamic content capabilities using HTML, CSS, Liquid, and Litmus for QA
• Create and manage integrations between marketing platforms, data warehouses, and other internal tools, testing
• Partner with analytics teams to ensure accurate tracking, reporting, and campaign measurement.
• Build complex experiment designs using Canvas
• Identify opportunities to improve process efficiency, reduce manual work, and enhance data quality.
• Troubleshoot and resolve technical issues related to campaign execution.
• Stay up to date on marketing technology advancements and best practices to inform future development.

About You

• Strong proficiency with one or more enterprise marketing automation platforms (e.g., Braze, Salesforce Marketing Cloud, Iterable, etc.). Braze experience and/or certification is highly preferred.
• Experience with HTML/CSS and scripting languages such as Liquid
• Experience developing personalized, automated email marketing campaigns
• Familiarity with APIs and data integration best practices—prior experience with Postman or other tools for QA is a plus
• Ability to translate marketing requirements into scalable technical solutions.
• Highly organized with strong attention to detail and a commitment to quality.
• Comfortable working in a fast-paced, collaborative environment with shifting priorities.
• Ability to write basic SQL queries for fetching and analysing transactional data is a plus
• Experience with Looker, Tableau, or other data visualization software is a plus

Hours and Location

• M-F, 40 hours/week
• Core working hours: 10:00 am–5:00 pm US ET
• Hybrid in Brooklyn, NY - 2 days on-site and 3 days remote

We offer a competitive salary range for this position. Most candidates who join our team are hired at the median of this range, ensuring fair and equitable compensation based on experience and qualifications.