Sr. Software Development Engineer – Python Infrastructure

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OfferUp is on a mission to create the simplest, most trustworthy way to buy and sell locally. The free app for iOS and Android helps sellers quickly post items for sale with just a picture from their smartphones and lets buyers easily browse what’s nearby. Now the largest mobile marketplace for local buyers and sellers in the U.S., OfferUp brings millions of people together to discover more value right where they are.

  • A top shopping app on iTunes and Google Play
  • Geekwire App of Year
  • 60+ Million Downloads

OfferUp’s Infrastructure Team is looking for an experienced Python engineer who wants to take our critical Python platform to the next level of performance and scalability. This will involve bringing us to Python 3, breaking up a Django monolith, and building high throughput systems. You will also help in creating tools and platforms that increase engineering productivity. You take a performance-minded approach to everything you do, and enjoy scaling Python for tens of millions of daily users.


  • Assist with building and scaling Python 3 services to 10,000+ RPS
  • Engage with the broader Python community to stay up to date with current trends
  • Build tools and services for other engineers to increase velocity and productivity with Python
  • Drive our migration to Python 3
  • Improve the reliability and efficiency of OfferUp’s core services
  • Develop elegant solutions to complex problems using latest best practices


  • Experience with using Python to build large scale systems
  • Extensive experience with web infrastructure, distributed systems, performance analysis, and traffic manipulation
  • 6+ years professional software development experience
  • Experience with software engineering best practices (e.g. unit testing, code reviews, design documentation)
  • BS, MS, or PhD in Computer Science or equivalent experience

Nice to have

  • Experience with AWS
  • Experience in Docker tool-chains
  • Experience designing fault-tolerant distributed systems
  • Experience with Java
  • Experience with Django, Redis, Memcached, or Postgres
  • Contributions to the open-source community

OfferUp is changing the way people buy and sell locally! Come join the team and take the ride of your life!

Apply now