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Come work with us! Building the worlds largest platform for like-new clothing is a unique and exciting opportunity and a chance to improve the lives of families while reducing our impact on the planet.

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thredUP Inc.
114 Sansome St
5th Floor
San Francisco, CA 94104

Senior Software Engineer: Ads Tech

Phoenix, AZ - Full-time

apply now
About thredUP:

thredUP is the largest online marketplace for secondhand clothing. We make buying and selling a cinch for millions of women across the globe. The company resells more than 35,000 brands across hundreds of categories at up to 90% off the estimated retail value. Headquartered in downtown San Francisco and backed by world-class investors, thredUP is reinventing the secondhand clothing industry and inspiring a new generation of consumers to think secondhand first.

About the Role: 

At thredUP, we’re working to revolutionize the clothing industry and we're looking for an experienced data engineer to help grow the foundation of our ad automation technologies, deliver targeting and budget/bid management solutions and display retargeting tools that supports millions of dollars in annual ad spend. If you’re looking for an opportunity to build upon your success and grow with thredUP as we lead the secondhand revolution, we want to hear from you!


  • Develop a platform that can integrate with multiple 3rd-party ad services (Facebook, Google, Pinterest etc)
  • Join a small team of data engineers and data scientists implement our ads optimization systems, including the data layer, business logic layer, and build required ETL flows/data pipelines for the same
  • Work with Marketing/Engineering leadership teams to provide technical vision and long-term roadmap for the platform
  • Integrate with internal services for personalizing ads and landing page experience
  • Interview and help mentor engineers for the Ads Data Team
  • Autonomy. The ability to make, own, and carry out decisions
  • Setting realistic time estimations and accountability for those goals
  • Being flexible and nimble to accommodate business needs


  • 5+ years of professional production-level Software/Data Engineering
  • Strong programming skills with a preference towards Java or Python.
  • Experience integrating 3rd party API’s with ensuring high availability and proper downtime handling
  • Experience with building data processing systems for scale and speed.
  • Familiarity with Data Warehouse systems or other transactional datastores
  • Comfortable working in an agile environment and directly with product owners and end users
  • Interest and aptitude in data, metrics, analysis
  • (Bonus) Experience with Spark, Hadoop or other Big Data technologies
  • (Bonus) Experience working with the online advertising industry
  • (Bonus) Engineering mentorship experience

What We Offer

  • The opportunity to make a massive impact & influence outcomes for our business and customers alongside a team of passionate engineers
  • Autonomy. The ability to make, own, and carry out decisions
  • Working within a modern tech stack
  • Competitive salary, equity and full benefits (health/dental/vision insurance & 401k)
  • Work from home Tuesdays and Thursdays (what we call Maker Days)

At thredUP, our mission has been built on extending the lives of millions of unique clothing items. Much like our inventory, we believe diversity is key. As a diverse and inclusive workplace, we are committed to ensuring our employees are comfortable bringing their authentic selves to work every day. A unique perspective is critical to solving complex problems and inspiring a new generation to think secondhand first. Everyone is welcome - be you.