Employers' requirements for Ruby developers of mid and especially senior levels may include:
• strong teamwork skills - the ability to get along with other people and cross-functional teams;
• tolerance for stressful situations ;
• ability to work in a company without a rigid hierarchy ( an especially important requirement for many startups);
• strongly developed written and spoken communication skills;
• proactivity;
• responsibility;
• ability to meet deadlines;
• an entrepreneurial, product-oriented mindset.