Ruby on Rails Developer Job Description: We’re looking for a Ruby on Rails Developer to build, enhance, and maintain scalable software systems that align with Sage’s long-term business objectives. You’ll work on meaningful products, solve complex technical challenges, and collaborate with cross-functional teams to deliver high-quality solutions. Experience with Ruby on Rails is essential; interest or experience in AI integration is a strong plus. This is a hybrid role requiring 3 days per week in our Newcastle or Barcelona office. Your First 90 Days • 30 days – Get up to speed with our architecture, development tools, and team practices. Understand product goals and familiarise yourself with our codebase and deployment workflows. • 60 days – Start contributing to core product development. Take ownership of well-defined features, write high-quality Ruby code, and collaborate with peers across engineering, product, and design. • 90 days+ – Lead feature development from design to release. Drive improvements in performance and maintainability, mentor junior developers, and proactively suggest enhancements across the stack. What You’ll Do • Build and maintain scalable software using Ruby on Rails • Design and implement features, APIs, and integrations with modern technologies • Collaborate with product owners, designers, and developers to deliver projects • Participate in the full development lifecycle: design, development, testing, deployment • Ensure clear documentation of code, logic, and technical decisions • Continuously improve existing systems with a focus on performance and user value • Mentor junior developers and contribute to a collaborative team culture • Stay updated on relevant technologies, including AI and cloud tools Meet the Team You’ll report to an Engineering Team Lead and work within a collaborative, cross-functional product team. You’ll regularly interact with subject matter experts, designers, and other developers to build solutions aligned with business and user needs. The team promotes a supportive, agile working culture with a strong focus on technical excellence and mentorship. How Success Will Be Measured • Delivery of high-quality, scalable, and maintainable code • Contribution to team goals and successful completion of sprint commitments • Effective collaboration and communication across teams • Proactive engagement in code reviews, documentation, and process improvement • Mentorship and support of junior developers • Continuous learning and application of new tools or technologies (e.g., AI, cloud) Skills You’ll Gain • Deepened expertise in Ruby on Rails and modern backend architecture • Experience working with cloud platforms like AWS • Exposure to AI-related integration and emerging technologies • Enhanced collaboration and leadership skills in a cross-functional agile environment • Familiarity with frontend development (React) and monitoring tools (New Relic) Key Responsibilities: Snapshot of Your Day-to-Day You’ll write and review Ruby code, develop APIs, and solve technical problems that have real business impact. Expect to pair with team members, participate in stand-ups and sprint planning, and contribute to both new feature development and system optimisation. Qualifications • Solid hands-on experience with Ruby on Rails • Strong understanding of software engineering principles and best practices • Experience working in Agile environments (Scrum, XP) • Proven ability to work autonomously and deliver results • Strong collaboration and communication skills Nice to Have • Experience with JavaScript or React • Familiarity with AWS or other cloud providers • Exposure to monitoring tools like New Relic • Interest or experience in AI integration At Sage, we offer you an environment where you can grow professionally without compromising your personal well-being. Our benefits package is designed to provide stability, flexibility, and balance: • Benefits video –https://youtu.be/TCMtTYUUiuU • Comprehensive health, dental and vision coverage • Work away scheme for up to 10 weeks a year • On-going training and professional development • Paid 5 days yearly to volunteer through our Sage Foundation • Flexible work patterns and hybrid working #LI-AL2 Function: Product Delivery Country: United Kingdom Office Location: Newcastle Work Place type: Hybrid Advert Working at Sage means you’re supporting millions of small and medium sized businesses globally with technology to work faster and smarter. We leverage the future of AI, meaning business owners spend less time doing routine tasks, like entering invoices and generating reports, and more time pursuing their ambitions. Our colleagues are the best of the best. It’s why we were awarded 2024 Best Places to Work by Glassdoor. Because to achieve extraordinary outcomes, we need extraordinary teams. This means infusing Sage with people who knock down barriers, continuously innovate, and want to experience their potential. Learn more about working at Sage:sage.com/en-gb/company/careers/working-at-sage/ Watch a video about our culture:youtube.com/watch?v=qIoiCpZH-QE We celebrate individuality and welcome you to join us if you embrace all backgrounds, identities, beliefs, and ways of working. If you need support applying, reach out atcareers@sage.com. Learn more about DEI at Sage:sage.com/en-gb/company/careers/diversity-equity-and-inclusion/ Equal Employment Opportunity (EEO) Sage is committed to Equal Employment Opportunity and providing reasonable accommodations to applicants with physical and/or mental disabilities. In order to provide equal employment and advancement opportunities to all individuals, employment decisions at Sage will be based on merit, qualifications, and abilities. Sage does not discriminate in employment opportunities or practices on the basis of race, color, religion, sex, national origin, age, protected disability, veteran status, sexual orientation, gender identity, genetic information, or any other characteristic protected by applicable law.