Senior Backend Engineer (вакансія неактивна)

— 5+ years of experience building backend systems
— Great coding skills and software development experience
— Ruby on Rails, Scala, Go, ElasticSearch
— Spark/Hadoop, MySQL, Cassandra and Redis
— 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
— Level of English: Upper-Intermediate

— Exceptional problem solving skills
— You 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 skills

Your future team believes in continuously improving skills and codebase, work/life balance, and doing things right overdoing them fast. The team is looking for engineers who share this view and are excited about writing quality code, trying new technologies, and playing well with others.

— High compensation according to your technical skills
— Long-term projects (12m+) with great Customers
— 5-day working week, 8-hour working day, flexible schedule
— Democratic management style & friendly environment
— WFH option (Possibility to work from home)
— Annual Paid vacation — 15 b/days + unpaid vacation
— Paid sick leaves — 6 b/days per year
— Ukrainian official holidays
— Corporate Perks (external training, English courses, corporate events/team buildings)
— Cozy office in the center of the city
— Coffee, cookies and other goodies
— Professional and personal growth

This team works on challenging and exciting features including recommendations, search, payments, and the mobile app API.

Your future teamwork involves:
— Building the world’s best recommendation engine for books (machine learning in Spark, the runtime in Ruby). The team utilizes large amounts of data that allow correlating our huge library to each individual user, offering a very personalized experience maximizing user engagement and exploration.
— Scaling backend search infrastructure (using technologies like Elastic search, 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 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.
— Using internal tools that glue together all of the infrastructure and coordinate the moving parts (analytics, anomaly detection, a/b testing platform, task pipelines, image server and many more).

Project description
The project is a tech company, changing the way of reading in the world. A product gives users/customers access to the world’s largest online library of books, audiobooks, sheet music, news, and magazines. The values of your future project team are trying new things, craftsmanship, being an open book, and the people that make a team great.

Сompany description
KitRUM is a one-stop custom software development company headquartered in sunny Florida with development centers in Ukraine and Poland.
With a pool of 300+ top-notch engineering resources, we help CxOs of VC-backed startups and fast-growing tech companies in the US, EU and Australia to custom build software engineering teams packed with top-tier talent.

Why us?
We realize that one of the most crucial things for developers — adequate client and fascinating project. So we qualify our clients to make sure that they:
have an idea that they believe will make the world a better place;
think long-term and looking for a trusted-tech partner;
want to rely on and avoid micromanaging;
are not f$%$ing jackasses :-)

Follow our team on Instagram to know more about our daily life :)
We adore making new friends on the board!