Middle/Senior Ruby on Rails Developer (AdTech Platform Development)

  • Remote (Ukraine only)
  • Ruby

Are you an experienced Ruby on Rails Developer willing to join the development of an AdTech Platform for our US-based client. As a Ruby on Rails Developer, you will be an important part of the team that works on our proprietary ad server. This is no small responsibility: As an AdTech company, the ad server is our cornerstone technology.

If you’re excited by and have experience working in high traffic environments, building public-facing APIs, and take pride in your well-factored code, this might be the role for you!


Our customer is a US-based technology company that builds the next generation of advertising products and premium video experiences.

The company pioneered the engagement-based ad model and now delivers effective advertising for on-demand, interactive media. Having a solid belief that ads should be enabling rather than interruptive, it has built the definitive engagement advertising system around the core product. The latter one delivers on the promise of “zero waste” advertising. Thus, our customer provides the best advertising experience for consumers, the best monetization for premium publishers, and the best return for brand advertisers.


The project is about developing a bar-raising platform that serves and supports advertising campaigns to maximize viewer, advertiser, and publisher benefit.

The team uses data engineering, data science, big data, and full-stack engineering with the help of technologies such as Python/Ruby, Scala/Elixir, SQL, Angular/React, AWS (mostly DynamoDB and Kinesis), Databricks/EMR, Spark and Spark Streaming, Redshift/Athena and high traffic: 10GB of streaming data is consumed per day, public APIs. There are hundreds of TBs of data in our data lake.

Meet your team!
  • 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 Science, 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, both within the ad server, as well as to the overall backend platform, with an eye toward fault tolerance and low latency
    • Triage and debug operational issues and outages
  • Requirements

    • Bachelor’s Degree in Computer Science or equivalent experience in the software development field
    • 5+ years of complete software lifecycle experience
    • Proven experience with Ruby, Rust, Golang or NodeJS and/or other modern languages
    • Prior experience delivering highly resilient, distributed micro services on public/private cloud infrastructures
    • Experience working with AWS services like EC2, Lambda, RDS, S3, SQS, etc.
    • Experience working in Agile teams
    • Great team player with can do attitude and sterling sense of ownership