Senior Backend Engineer

San Francisco OR Remote US/Canada
Engineering – Backend Systems
Full-Time
At Scribd (pronounced “scribbed”), we believe reading is more important than ever. Join our cast of unique characters as we build the world’s largest and most fascinating digital library: giving subscribers access to a growing collection of ebooks, audiobooks, magazines, documents, and more.
In addition to works from major publishers and top authors, we also create our own original content exclusively for Scribd users.
Our community includes over 1M subscribers in more than 190 countries. Join us in turning screen time into quality time!

About the Team

We believe in continuously improving our skills and codebase, work/life balance, and doing things right over doing them fast. We’re looking for engineers who share this view and are excited about writing quality code, trying new technologies, and playing well with others. This team works on challenging and exciting features including recommendations, search, payments and the mobile app API, so we use a wide variety of technologies including Ruby on Rails, Scala, Go, ElasticSearch, Spark/Hadoop, MySQL, Cassandra and Redis. Some of our recent projects include: 

Building the world's best recommendation engine for books (machine learning in Spark, runtime in Ruby). We utilize large amounts of data that allows us to correlate our huge library to each individual user, offering a very personalized experience maximizing user engagement and exploration.

Scaling backend search infrastructure (using technologies like Elasticsearch, HDFS, Spark, Hive, and Go) to achieve a low latency and high availability search service for our website and our apps.

Improving search quality by implementing and tuning multiple ranking algorithms, indexing schemes, and better search suggestions.
Building well designed and fast API endpoints for our mobile apps (in Ruby and Go).

Implementation of an in-house payment and subscription system that increases transaction success rates by using a large number of optimizations based on data observations and thorough analysis.

Internal tools that glue together all of our infrastructure and coordinate the moving parts (analytics, anomaly detection, a/b testing platform, task pipelines, image server and many more).

About you

We’re looking for strong engineers with exceptional problem solving skills who want to work independently and own large, complicated projects. You’re comfortable in dealing with lots of moving pieces. You have exquisite attention to detail. You’re comfortable learning new technologies and systems. Collaboration, time management, and communication are as important as your technical skills.
We’re looking for:

•Strong background or interest in building successful products in the context of a web application
•Experience shipping clean code that works
•Background in algorithms with a focus on applied problem solving
•Bachelor's or higher in mathematics, computer science, physics, or equivalent experience
•Strong SQL skills and the ability to analyze large and complex datasets