Senior Software Engineer – Ruby on Rails (Dublin)

Senior Software Engineer – Ruby on Rails (Dublin)Hybrid - 1 day a week in the officeWe have an opportunity in a fast-growing SaaS company delivering a cloud-based platform that provides organisations with real-time operational and financial insight. The product is live, revenue-generating, used internationally, and built with AI-driven capabilities at its core. This is a product-led, founder-backed environment where engineering decisions move quickly into production. No slow corporate release cycles, the work you do is visible to customers almost immediately.The OpportunityThis is more than a typical Senior Engineer role. You’ll join as a hands-on technical leader with architectural ownership, working directly with the CTO (Founder) and Product leadership. You’ll help lead and mentor a small Ruby on Rails team (including offshore engineers), with a clear and structured pathway into Engineering Management.What You’ll Be DoingDesign, build, and scale core platform services using Ruby on RailsOwn performance, scalability, and reliability in productionHelp lead and mentor a small RoR teamDrive architecture decisions alongside the CTOSet technical standards and promote best practicesCollaborate closely with founders and product leadershipTranslate product ideas — including AI-driven features — into shipped solutionsContribute to the evolution of engineering processes as the company growsWhat We’re Looking For5–7+ years hands-on Ruby on RailsStrong experience building scalable production systemsArchitecture and system design capabilityExperience in startup or scale-up environmentsProven ability to mentor or lead engineersStrong communicator, comfortable working directly with foundersA genuine ambition to step into Engineering ManagementNice to have:React Native / mobile experienceAI feature development experienceSaaS backgroundWhy This Role Stands OutClear progression into Engineering ManagementDirect collaboration with founding leadershipHigh autonomy and visible impactAI-leaning product with a strong roadmapProfitable, stable SaaS businessHybrid flexibility with a collaborative culture