Job TitleSenior Software Developer (Ruby on Rails)LocationDublin, Ireland, with a healthy balance between remote work and time on-site with the team. 1 day a week onsite in Dublin City Centre.AboutA growing and successful SaaS startup (in business since 2018) helping businesses gain real-time visibility and control over their costs. They focus on solving real customer problems with simple, well-built software. Product is used by hundreds of customers across the globe.They are still small enough that every developer has real influence, but established enough that the product is live and generating good revenue. They are evolving, with an ambitious roadmap for 2026.The RoleWe're looking for a Senior Software Developer with at least 8 years of experience who enjoys building, leading, and taking ownership. You'll be a hands-on contributor while also helping shape how the engineering team works as the team further grow.You'll report directly to the CTO (Founder) and work very closely with the Product Owner (also a Founder), with real input into product direction, technical decisions, and delivery.This role is ideal for someone who has "been there before" and wants to apply that experience in a very ambitious startup environment.What You'll DoBuild, evolve, and maintain core parts of the platform using Ruby on RailsTake responsibility for technical quality, performance, and scalabilityHelp lead and manage a RoR team, mentoring developers and setting standardsReview code and promote pragmatic best practices (clean code, testing, security)Work closely with the founders to turn product ideas into shipped featuresBalance speed and quality in an Agile environmentContribute to shaping engineering processes as the company scalesWhat We're Looking For10+ years overall software development experience7+ years of hands-on Ruby on Rails experience and 3+ years full stack experienceStrong experience building and running production systemsProven ability to lead, manage, and mentor developersThe flexibility needed in a startup environmentClear communicator who can work directly with founders and non-technical stakeholdersStrong problem-solving mindset and practical engineering judgementNice to Have (Not Required)Experience with React Native (Mobile Development)Use of AI to develop Value Add product featuresHow they WorkHybrid setup: remote flexibility with regular on-site collaboration in Dublin, 1 or 2 days per week in beautiful vibrant environment.Small team, direct communication, minimal process overheadDecisions made quickly, with real ownership and accountabilityWhat is on Offer:Competitive salary and benefitsDirect access to founders and real influence on product and tech directionA senior role with autonomy and trustOpportunity to grow with the company and shape the engineering functionIf you feel you meet the requirements and live lose in Dublin, with ability to travel to the office at least a day a week, please APPLY NOW.