Experteer Overview Senior Software Engineer at Kompanion to help build an AI-native platform for tax, accounting, and financial workflows. You’ll own features end-to-end and influence product and engineering culture in a small, growing team. You work across the stack, improve reliability, security, and performance, and collaborate with Tax, Accounting, Growth, and Operations. This is a hands-on role with broad ownership and a clear impact on product and platform quality. Compensaciones / Ventajas • Own features end to end from definition to production and validation • Build across the stack with emphasis on backend systems and business logic • Operate the platform in production, improving reliability, performance, observability, and security • Collaborate closely with Tax, Accounting, Growth, and Operations • Develop integrations, automations, internal tools, and AI-powered features • Improve architecture, developer experience, testing,



and engineering standards • Review code, mentor engineers, and participate in hiring Responsabilidades • 5+ years of experience building and operating production software • Strong backend engineering experience • Proficiency with Java and Spring Boot or ability to become productive quickly • Solid PostgreSQL knowledge (data modeling and query performance) • Ability to work with React or Next.js when needed • Experience owning systems in production • Strong fundamentals in clean code, testing, security, and system design • High autonomy and ability to convert ambiguous problems into shipped products • Degree in Computer Science, Software Engineering, or related field welcome but not required Requisitos principales •

📌 Fullstack developer (Barcelona)
🏢 Experis
📍 Barcelona