Senior Software Engineer - Ruby About LegendAt Legend, we're building next-level player experiences. With 20+ years of proven success we’re the world's leading Sports and Gaming marketing company.Our people are our edge. 600+ sharp, ambitious Legends across 22+ countries who move fast, learn quickly and win together. Here growth isn’t a perk, it’s the standard. You’ll stretch, level-up and carve out a career as bold as the products we build. We celebrate wins and create experiences that people talk about for years - for our players & for each other. If you’re ready to shape the future of player experience and enjoy the ride while you do it, this is where you’ll thrive.The Role Legend is hiring a Senior Software Engineer reporting directly to our Senior Engineering Manager. This is an opportunity to shape the technical foundation of a high-growth product in the competitive gaming space — a market scaling rapidly worldwide. You’ll help design and implement the backend and platform architecture that powers real-time tournaments, delivering scalable, secure, and high-performing systems players rely on. You’ll collaborate closely with engineers, product managers, and designers to deliver high-quality solutions while applying modern practices like Domain-Driven Design, SOLID, and GRASP. If you thrive in fast-paced environments, enjoy tackling tough scaling challenges, and want to shape the future of competitive gaming, this is your chance to make your mark. In this role, we value diverse perspectives and encourage you to apply even if you don’t meet every qualification listed.\nYour Impact Design and implement application architecture that is scalable, maintainable, observable, and high-performing. Write clean, efficient, and well-documented Ruby/JavaScript (or other backend language) code. Conduct code reviews, review architecture, and contribute to engineering best practices. Identify and optimise performance bottlenecks across systems. Collaborate closely with cross-functional teams to deliver impactful features. Ensure application security, implementing safeguards against vulnerabilities. What You'll Bring Proven experience delivering large-scale systems in production. Strong grounding in Domain-Driven Design, API-first architecture, and software design patterns. Proficiency in JavaScript (React/Next) or another backend language, with knowledge of Ruby. Experience with Pub/Sub, websockets, and Server-Sent Events (SSE). A strong product engineering mindset — able to translate requirements into technical designs and ship features end-to-end. The Interview Process Initial Chat with Talent Partner (45 mins via Zoom) Interview with our Technical team (1 hour video via Zoom) Technical Interview with coding exercise with our Technical team (1.5 hour video via Zoom or 2x 1hr interview via Zoom depending on your preference) Interview with our Non-Technical team (1 hour video via Zoom) Final Interview with our Technical Leadership Team (1 hour video via Zoom). Why Legend Starting salary from 3000 EUR per month. Super smart colleagues to work alongside and learn from, with company-wide team-building events twice a year, including great entertainment, catering, and accommodation in a beautiful hotel. Engaging development opportunities at all levels. Tailored flexibility for your work-life balance. Exciting global Legend events, where we unite in person to ignite our shared passion and unveil the exciting strategies for the year ahead! Unlock your full potential by joining the Legend team. To support you on this journey, we provide an extensive array of benefits and perks, as outlined in our global offerings above. For country specific benefits please reach out to your talent partner. \nLegend is an Equal Opportunity Employer, but that’s just the start. We believe different perspectives help us grow and achieve more. That’s why we’re dedicated to hiring and developing the most talented and diverse team- which includes individuals with different backgrounds, abilities, identities and experiences. If you require any reasonable adjustments throughout your application process, please speak to your Talent Partner or contact the team on talent@l1.com, and we'll do all we can to support you.