Senior Software Engineer (Remote EST/Hybrid in Brooklyn NY)

The Mom Project is excited to support Etsy with their search for a Senior Software Engineer to join their team on a contract basis.

About the Role:

Etsy is looking for a passionate Senior Software Engineer to help us enable data-driven learning and decision-making for our Experimentation initiative.

Our initiative empowers teams across Etsy to run fast, trustworthy, and scalable experiments by laying the foundation for how we test ideas, measure impact, and continuously improve our customer experience.

You would join the Experimentation Orchestration team, which focuses on making experiment setup simple, intuitive, and reliable. We build the core services, APIs, and tools that help teams configure and launch experiments with confidence. Whether it’s feature flagging, observability, traffic allocation, or ensuring a consistent user experience, our work sits at the heart of a seamless experimentation workflow. Our mission is to make testing new ideas effortless — so teams can move faster, learn more, and build better products for our buyers and sellers.

This is a high-impact opportunity to contribute to experimentation infrastructure that enables product development across Etsy. We’re looking for someone who thrives in collaborative environments, challenges the status quo, and enjoys solving complex problems. We also value someone who embodies Etsy’s blameless engineering culture, as we believe clear communication, honest feedback, and empathy are the foundation for how we work together and get things done.

Responsibilities:

• Collaborate with engineers, analysts, and product managers — both within and beyond the Experimentation initiative — to improve Etsy’s experimentation platform.
• Contribute to the design, development, and maintenance of systems that support experiment configuration and orchestration.
• Participate in code reviews, technical discussions, and architecture planning sessions.
• Play a role in driving technical and product direction through thoughtful decision-making and collaboration.
• Continuously learn and grow by working alongside experienced engineers and contributing to a culture of knowledge sharing.

Skills and Qualifications:

• You’re excited about full-stack development, particularly in the context of building experimentation platforms.
• You have familiarity with A/B testing frameworks and experimentation workflows.
• You’ve built (and have some experience in designing) reliable, scalable systems and enjoy working on backend services and APIs.
• You write clean, testable code in one or more of the following languages: PHP, Python, or Java.
• You’re proficient with MySQL (or similar relational databases) and understand how to design effective data models.
• You have experience with cloud platforms such as Google Cloud Platform, AWS, or Azure.
• You’re comfortable using Git and understand different branching strategies.
• You’re comfortable working in Linux-based environments and using the command line.

Preferred:

• Familiarity with CI/CD tools and practices that support high-quality, rapid software delivery.
• Familiarity with containerization and orchestration tools like Docker and Kubernetes.
• Familiarity with monitoring and alerting systems (e.g., Prometheus, Grafana).
• Familiarity with front-end technologies, such as React.
• Experience with data warehousing (e.g., BigQuery) and ETL processes, using big data frameworks such as Kafka and Spark, as well as orchestration tools such as Airflow.

Hours and Location

• Monday - Friday, 40 hours/week
• Hybrid in Brooklyn, NYC, but open to remote in EST.

If you're interested in joining the team at Etsy, please send a cover letter and resume telling us why you'd be right for the position.

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.

An Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or protected veteran status, and will not be discriminated against on the basis of disability.