Position: Middle/Senior Ruby Software Engineer (AdTech)
Company: Sigma Software
Experience required: 3y
English level: intermediate

**Customer**
Our customer is a full-service digital innovation company that leverages online advertising and proprietary technologies to build publishing brands in the gaming and entertainment verticals. They provide an all-inclusive solution to manage every aspect of the ad ecosystem for digital publishers through machine learning technology. 
Project 	Our client’s product - is a unique platform that helps integrate advertising with client’s products letting them increase Ad Revenue and run their businesses more efficiently.

Closely cooperating with a team on a customer’s side and looking into new features, you will help improve a platform and make it more efficient. 

Together with your teammates, you will be responsible for:
- architecting and implementing back-end and front-end solutions using Ruby and JavaScript
- implementing new features to the existing platform
- improving the performance of an existing software and maintaining the code quality

**Responsibilities**
Develop and launch new capabilities to adapt to evolving business needs
Be an active and engaged owner of the product and customer experience, collaborating effectively with Product Management, Data Engineering, and other disciplines
Maintain high standards of code quality, including tests and documentation, and encourage the same by providing constructive code reviews to collaborators
Work closely with other engineers to investigate design approaches, prototype new technology, and evaluate technical feasibility of new features
Manage multiple competing priorities in a fast-paced, exciting environment
Troubleshoot and resolve issues, problems, and errors encountered across our various endpoints
Provide architectural input when designing new features with an eye toward fault tolerance and low latency
Debug operational issues and outages

**Requirements **	
4+ years of commercial experience in web development 
Strong working experience and deep knowledge of Ruby
Understanding and experience with front-end programming: JavaScript, AJAX, JSON, HTML5
Experience working with back-end services using RESTful APIs, gRPC, or messaging-based systems
Experience using Git for version control
Upper-Intermediate level of English and higher

**Will be a plus**
Knowledge of SQL
Familiarity with AdTech industry
Experience with AWS
Passion for following SOLID Design Principles