Skill needed: Supabase, Typescript, SQL, PostgreSQL, Node.js, Backend, Architecture.
Employer: Dolfin
🌟 Senior Backend Engineer @ Dolfin — Build the Future of Sales Compensation 💰Location: Barcelona 🇪🇸Hybrid mode (minimum 2 days onsite) Type: Full-timeAbout DolfinDolfin is redefining how companies understand, design, and optimize their sales compensation strategies. Our platform helps organizations see how compensation drives behavior and revenue — and empowers sales teams with clarity, confidence, and motivation.We're a small, fast-moving team 🚀 with huge ambitions. If you love building real products, shipping fast, owning big pieces of the stack, and seeing your work directly impact customers… you'll love it here. ❤️The RoleWe're looking for a hands-on Senior Backend Engineer who is obsessed with building great software. Someone who thrives in startup environments, loves solving hard problems 🧠, and takes pride in writing clean, scalable, reliable code.You'll work across multiple parts of the platform, influence core architecture decisions 🏗️, and collaborate closely with product and founders. Your work will shape how thousands of salespeople understand their performance and compensation.What You'll DoDesign, build, and maintain backend services that power Dolfin's compensation engine ⚙️Own complex features end-to-end, from architecture to delivery 🛣️Work with large datasets 💾 and optimize performance-critical queriesCollaborate with product, frontend, and data to shape roadmap and execution 🤝Improve the reliability, scalability, and observability of our systems 📈Contribute to a strong engineering culture built on ownership, clarity, and craftsmanship ✨Who You AreA builder at heart — you love coding, shipping, iterating, and seeing real users benefit from your work 💻Deeply hands-on: this is not a managerial role; you will spend most of your time writing and reviewing codeStartup-minded: you thrive in dynamic environments and want your work to have direct, visible impact 💥Team player with strong communication skills and zero ego 🧘You care about quality and readability, not just getting things to "work"Motivated by meaningful problem spaces (data, incentives, revenue optimization, behavioral analytics) 📊Required SkillsStrong experience building and maintaining backend systemsExcellent SQL skills — query design, optimization, data modeling 🔍Solid understanding of backend architecture, APIs, services, and scalingComfortable working autonomously and making technical decisions 🧭Required EducationBachelor's degree in Computer Science, Software Engineering, or a related field, OR equivalent practical experience demonstrating strong CS fundamentals (data structures, algorithms, distributed systems, architecture, etc.)We care about your ability to think, build, and solve problems — not where you learned it. 💡Nice to HaveExperience with TypeScript, Node.js, or serverless architecturesFamiliarity with compensation, financial systems, or analytics platformsExperience with Supabase, PostgreSQL, or distributed systems ☁️Why You'll Love Working at DolfinHuge ownership and ability to influence the product and technical roadmap 🗺️Zero bureaucracy — we move fast and trust our teamWork directly with founders on a product used by revenue teams every dayA culture built around passion, craftsmanship, and continuous learning 🌱Opportunity to shape the foundation of a fast-growing company 🏗️