Ruby on Rails [Rzeszow]


Job Description: RubyOnRails Developer

Title: RubyOnRails Developer


Are you ready to help build ground-breaking applications for our clients? We are helping small and large companies put their ideas into reality. Our projects include anything from web/mobile applications, Big Data, Machine Learning, or building large scale web crawlers (billions of documents) and fine-tuning Search Engines.

If this is you, we’ve been waiting for you.


  • You take pride in your work by implementing cutting-edge technologies and writing state-of-the-art code.
  • You own your projects from software design to implementation and deployment.
  • You emphasize simplicity and pragmatism, which is reflected in your elegant code that other developers emulate.
  • You love to learn and develop new skills continuously.
  • You thrive on working with new technologies.
  • You challenge the status quo when needed.
  • You have the drive to get results and not let anything get in your way.
  • You have the habit of leaving the code cleaner than when you found it


  • Simsar is a quickly growing Software Development House based in San Jose, California and Rzeszow, Poland with work opportunities around the globe
  • We help companies put their ideas into reality
  • We work with StartUps and Large Enterprises
  • Our projects include Web and Mobile applications, Big Data, Machine Learning (NLP and Computer Vision), Data Acquisition and Search Engines
  • We think big, move fast and have strong opinions.
  • We frame things up and expect you to fill in the blanks.
  • We are open to great ideas and are willing to experiment.
  • We believe in work flexibility and respect your need to work in your own space.
  • Everyone executes and delivers.


  • Languages: Ruby / Python
  • Frameworks: RoR / Sinatra / Django
  • Databases: PostgreSQL / MySQL / MongoDB / Redis / S3


  • Expertise in RubyOnRails (v. 5+)
  • Good knowledge of Sintatra is a plus
  • Ability to take tasks from requirements to deployment quickly and independently
  • Ability to function as a project leader as well as an individual contributor
  • Ability to work within distributed, multidisciplinary teams
  • Design and build scalable, high-availability mission-critical systems and APIs
  • High bar for quality and a phenomenal attention to detail
  • Working knowledge of deployment process (Capistrano), user authentication and authorization (Devise), and testing


  • B.S. in Computer Science, Computer Engineering, or equivalent field
  • 7+ years of building highly scalable applications
  • Extensive experience in web service deployments