Ruby Developer (Food Delivery Project) (offline)

Our customer – is a startup that provides a novel approach to office meals. Using their platform, customers get automated and organized lunch, serving individual and customizable meals to offices from restaurants.

Requirements
4+ years of working experience in software development
Solid experience with Ruby on Rails
In-depth understanding of the fundamentals of web technologies, data structures, and algorithms
Working experience in design and implementation on scalable/cloud-based architectures for production-grade back-end (AWS, ec2 load balancing, auto-scaling, CloudWatch, and Aurora)
Experience with database engineering, including SQL/GraphQL with million-size relational records (having the ability to write and optimize PostgreSQL and GraphQL)
Ability to design relational schemas appropriate for given use cases
At least an Upper-Intermediate level of English

WILL BE A PLUS:
Familiarity with JavaScript, Python, or other languages related to modern web stacks
Experience operating relational databases at scale
Experience with A/B/C experiments with clustering, designing, and tracking efforts

PERSONAL PROFILE
Great team communication, including writing and verbal skills
Great self-management on time and priorities

Responsibilities
Design and implement back-end systems that are solid, scalable, and flexible
Collaborate with front-end and data engineers to deliver new features to customers
Maintain a healthy back-end service and resolve live issues
Design and implement unit testable and highly maintainable code for the service
Improve and optimize back-end stacks for better shape and faster response
Come up with great new ideas for features and better ways of implementing existing ones

About Sigma Software

Sigma Software is a place where Nordic Traditions meet Ukrainian Spirit to create Superior Software. We combine the best practices and approaches from Swedish and Ukrainian cultures. Taking high demand for quality, minimal hierarchy, freedom of decision-making, and attention to every opinion from Swedes, as a Ukrainian company we demonstrate flexibility and dedication to every project and every customer.

We are IT consulting and software product company with development offices in Ukraine, Sweden, the USA, Canada, Poland, and Australia. We deliver smartest solutions to our customers in the areas of government, telecommunications, advertising, automotive, gaming, and others. Being a part of Sigma Group, one of the largest Nordic IT corporations, we are a global player with more than 5000 employees in 12 countries and over 1500 in Ukraine.

We work with startups, software houses, and enterprises providing the products and services that suit our clients the most. Company`s R&D centers are mastering the trending technologies and directions: Infotainment, AR/VR, Blockchain, Machine Learning, Data Science, Artificial Intelligence, and others.

Company website:
https://career.sigma.software/

DOU company page:
https://jobs.dou.ua/companies/sigma-software/