We build the testing platform used by our customers (Facebook, WhatsApp, Microsoft) and 20,000 professional testers around the world.

Why work with us?

• You’ll be working in a fast feedback and deploy environment
  • Deploy multiple times a day to production
  • DevOps Environment: Kubernetes, Prometheus, Grafana, Graylog, Sentry, NewRelic, GitHub, Concourse, Slack & JIRA
• You’ll use the latest technology and principles 
  • Backend: Ruby 2.4, Ruby on Rails 5.1, RSpec, Eslint, Rubocop
  • Frontend: React v16.0, ES6, ES7, Jest, Redux, GraphQL, Webpack
  • Coding Principles: Static Code Analysis, Code Review, SOLID 
• You’ll grow personally and professionally
  • Leadership: Mentoring, Personalised development plans, 1:1s
  • Team: Friday tech talks, Retrospectives, knowledge sharing
  • Quickstart: Bootcamp, Buddy System, First-day release to production. 

Compensation & Benefits

• Negotiable salary, but within 2800 – 5000 EUR net a month on a VAT invoice (B2B), depending on your experience and quality of your code
• Paid holidays (all holidays in your country + up to 20 days)
• Permanent contract with a 6 months trial period

• Designing and implementing new features with modular, secure and well tested full-stack code which has a clear separation of responsibility
• Optimizing applications for maximum speed and scalability if needed– leading a project or feature from time to time
• Solving various interesting problems around virtual machines, tester management, tester scoring, semi-automated test execution, spam activity detection (also ML, natural language processing, neural networks down the line if you’re interested)– suggesting technologies that fit the problem at hand
• You'll work closely with other engineering teams so you can pioneer new technologies
• You'll improve the team and company – you will be an active participant in our culture (mentorship for less experienced developers, interviewing, and new initiatives)
  
  

• Min 3 - 4  years of commercial experience for senior
• Have built highly scalable and robust systems in the past– designing and implementing complex applications (code complexity and data model complexity)
• Creating database schemas that represent and support business processes– integration with various internal and external APIs using open source and custom built API connectors
• Data migration, transformation and scripting
• Outputting data in different formats
  
  

• Good understanding of Ruby and Ruby on Rails
• Good understanding of TDD and it’s benefits to be able to code with and without it while keeping the code quality high (you need appropriate mindset when coding)
• Understanding of few of the SOLID principles
• Good understanding of front-end technologies and platforms, such as React, Redux, JavaScript, HTML5, and CSS3
• Good understanding of git code versioning tool
• Good written and spoken English communication skills (a must)
• Ability to learn fast
• Focus on delivering and self-management
  
  

• Any experience with building NodeJS apps (both frontend and server apps)
• Any experience in latest ReactJS, ES6, ES7, Redux, Elixir, Phoenix
• Good understanding of how to apply SOLID principles in practice so you can help with training the team
• Any experience with AI (ML, NLP, Neural Networks of various types, Swarm Intelligence, Genetic Algorithms, etc.)
  
  

• You can work from a modern office in Kraków in Zabłocie area with table football