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ShopRunner // network of retailers
Engineering, Full Time    Krakw    Posted: Tuesday, June 18, 2019
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For customers, were an online, members-only service that provides benefits across 140+ of the best online stores. Our members save time & money with benefits including free 2-day shipping, easy 2-click checkout & free returns.

For merchants, were driving ecommerce business, producing insights with a growing data analytics practice to boot.

After our recent acquisition of Spring we are growing the team in Krakw & along with people in Chicago, New York & Conshohocke offices, we build great experiences for our customers & our merchants.


In our mission to build the best shopping experience for our users, we are constantly adding new features to You will be helping design & develop new & existing features end-to-end. On the frontend we use primarily JavaScript & React, & on the backend we use primarily Python, with some Go & Kotlin. The ideal candidate is experienced in many of them, but we are primarily interested in candidates who are experts in backend & are willing to learn new technologies.

ShopRunner is proud to be committed to Twelve-Factor applications by investing in CI/CD, feature flags, & automated testing.


  • Building the Product catalog spanning millions of products from 140+ retailers & Search & Browse experience that builds on it to enable high & low intent customers find the products they are interested in.
  • Leading the organization to use modern best practices & technologies
  • Working closely with designers, product managers, & other engineers


  • 5+ years experience writing production code for backend and/or web applications
  • Expertise either in backend, ideally in Python.
  • Frontend expertise in ReactJS or ES6+ is a plus
  • Experience increasing page load performance in browsers & optimizing for mobile.
  • Backend expertise in JVM based programming languages like Java/Groovy/Kotlin is a plus
  • An understanding of database concepts & experience writing SQL in a relational database such as MySQL or PostgreSQL
  • Experience optimizing larger applications to increase speed, scalability, & extensibility
  • Comfort with key programming concepts like memory management, optimization techniques, API design, relational mapping frameworks, & distributed applications
  • Self-starter who can move projects forward by filling in the gaps on Agile teams, from leading a design session to doing some test automation, to mentoring a teammate struggling with a new technology
  • Nice to haves: Experience working in AWS, Docker, Terraform
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