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.

Responsabilidades

- 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

Requisitos principales

- 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

- hands-on
- low-ego
- clear communication
- Java
- Spring Boot
- PostgreSQL

📌 Fullstack developer - barcelona
🏢 Experis
📍 Barcelona