Senior Backend Software Engineer (Ruby on Rails)

🌍 About Sortlist At Sortlist , we connect businesses with the right marketing and creative agencies. Our mission is to help teams make better decisions, faster — by combining technology, data, and human expertise. We’re a fast-moving, product-led company with a strong engineering culture built around autonomy, technical excellence, and impact . 💡 Your Role As a Senior Backend Software Engineer , you’ll be a cornerstone of one of our two cross-functional tribes, helping us evolve our Ruby on Rails-based platform and shape the future of B2B matchmaking. This role goes beyond writing code — you’ll act as a technical leader , bringing product thinking , architectural clarity , and operational excellence . You’ll help guide technical direction, ensure long-term maintainability, and mentor peers — while staying close to the product and user problems that drive our roadmap. 🔧 What You’ll Do 🏁 1. Own and Deliver Impact Solve real problems that create the most value for users and the business. Design and implement backend solutions balancing performance , simplicity , and scalability . Make pragmatic trade-offs — whether through code, configuration, or process. 🧱 2. Lead by Example Promote clean architecture , robust testing , and clear documentation . Elevate our engineering standards around code reviews , CI/CD , observability , and performance monitoring . Help your team make sound, informed technical decisions. 🚀 3. Operate What You Build Own the full lifecycle : from design to deployment to monitoring in production. Improve reliability, developer experience, and runtime performance. Participate in incident reviews and contribute to a culture of operational excellence . 🤝 4. Mentor and Collaborate Coach and empower medior engineers through pairing, feedback, and leadership. Collaborate closely with your Product Manager, Product Designer to shape bets from concept to delivery. Foster a culture of ownership , curiosity , and psychological safety . 🧰 Our Tech Stack We operate a modern stack built for developer happiness , scalability , and simplicity : Backend: Ruby on Rails 7 (API-only) Frontend: React / Next.js Databases: PostgreSQL, Google BigQuery Infrastructure: Kubernetes, AWS, Terraform, Docker Observability: DataDog, Sentry, structured logs CI/CD: GitHub Actions You’ll have space to influence and evolve this stack — we value engineers who care deeply about developer productivity and maintainable architecture. 🧩 What We’re Looking For 5+ years of experience building web applications (ideally with Ruby on Rails ). Solid understanding of web architecture , scalability , and database design . Experience operating apps in production — logging, monitoring, debugging, optimizing. A strong ownership mindset — you care about maintainable, observable, and resilient systems. Collaborative spirit and comfort working in cross-functional teams. Balance between pragmatism and perfectionism — knowing when to polish and when to ship. Fluent in English and French (our working languages). Bonus points for: ✨ Mentoring experience or technical leadership. ☁️ Cloud infrastructure (AWS) and IaC tools (Terraform). 📦 Experience with distributed systems or event-driven architecture. 💼 What We Offer Modern equipment: MacBook or high-end Linux setup — your choice. Hybrid work: 3 days in-office, 2 days remote — flexible for trips or family needs. Autonomy: Engineers at Sortlist are trusted to make real technical decisions. Learning budget: €1,000/year for courses, conferences, and growth. Competitive benefits: Meal vouchers, mobility budget or company car, health insurance, progressive holidays, and net allowances. Real work-life balance: No weekend pings, no on-call grind. Rest is valued. Team culture: Tight-knit, humble, and supportive. We celebrate learning and ownership over hierarchy. 🚀 Why Join Sortlist You’ll be joining a company that believes great products come from small, empowered ... (truncated, view full listing at source)