Top Ruby Jobs in Chicago, IL

The Principal Software Engineer will architect and lead the development of scalable systems, drive technical excellence, mentor teams, and promote best practices at a fintech company.

As a Software Engineer, you will build and maintain a native advertising platform, collaborating with teams to enhance user interfaces and improve ad campaign effectiveness.

As a Senior Software Engineer, you will design and maintain systems, mentor team members, and improve both code quality and team practices.

The Senior Software Engineer will design, develop, and enhance fraud tools for PayPal's Braintree, focusing on code quality and observability.

Seeking a Senior Software Engineer for full-stack development with 6+ years experience, focusing on Ruby on Rails and cloud technologies, in a remote US position.

As a Mid-Level Full Stack Developer, the role involves building and maintaining web applications, implementing new features, and optimizing performance using Ruby on Rails in a remote setting.

The Senior Full Stack Developer will build end-to-end solutions, collaborate in a remote environment, and write technical documentation. The role requires expertise in Ruby on Rails and various programming paradigms.

As a Software Engineer, you will help train large-language models in code evaluation and training, focusing on Ruby, with an emphasis on code review and improvement.

Review, rank, and improve AI-generated code across languages, focusing on Ruby. Repair/refactor code, provide detailed written justifications, and inject ratings/edits/test results into the RLHF pipeline to help train models.

As a Sr Software Engineer, you will design and build solutions for merchant onboarding, solve complex engineering problems, and contribute to various products across PayPal, Braintree, Venmo, and Hyperwallet.

Develop and maintain customer-facing features in Ruby on Rails, collaborating cross-functionally to drive user experience and business impact through AI-enhanced tools and practices.

Develop and maintain customer-facing Ruby on Rails features, collaborating with cross-functional teams to drive measurable business impact and user experience improvements.

Seeking a mid-level Ruby developer to enhance and maintain backend web applications in a fast-paced startup environment, focusing on cloud services and collaborating with teams.

Mudflap seeks software engineers to build and scale their payments platform using Ruby on Rails, collaborating cross-functionally and owning features end-to-end.

As a Senior Software Developer, you'll implement new features, improve user experiences, and help mentor less experienced developers while ensuring code quality and optimal workflow processes.

As a Flow Engineer, you'll build and maintain features with Ruby on Rails and React, design data visualizations, and optimize workflows for healthcare operations.

Join a technology company as a Fullstack Developer focusing on backend services and APIs, building scalable microservices architectures and collaborating with product teams.