Senior Software Engineer with Ruby

Our Client, an American software company is opening a new branch in Warsaw and we are looking for a Senior Software Engineer with Ruby to join a growing team. About the Position This role focuses on enhancing and maintaining a robust platform, supporting new project initiatives, and delivering scalable solutions that improve the user experience for both industry professionals and individual clients. The ideal candidate is proactive, collaborative, and committed to delivering high-quality, scalable software. This is a hybrid role based in Warsaw, Poland. Key Responsibilities • Design and implement new functionalities for a cutting-edge platform • Develop and manage APIs to enable smooth integration with financial and sales partners • Build secure and scalable services designed for sustained performance • Support agile development practices and help ensure consistent, impactful sprint results • Mentor team members and contribute to a positive engineering culture through knowledge-sharing • Maintain and take responsibility for services you develop, including participating in the on-call rotation • Requirements • Minimum 5 years of professional experience as a Software Engineer • Strong proficiency with Ruby on Rails • Excellent communication skills and experience working in cross-functional teams • Familiarity with React and component-based front-end frameworks • Working knowledge of JavaScript and/or TypeScript • Ability to perform in a hybrid (office/remote) work environment • Advanced written and spoken English (please provide your CV in English) • Nice to have • Experience with GraphQL