Experteer Overview
As a (Senior) Software Engineer at Taxfix Group, you will build core features for our flagship tax-app and turn complex tax scenarios into simple, reliable experiences. You work in a cross-functional team, owning work end-to-end from discovery to deployment, with a focus on scalable, maintainable software and AI-first development. You’ll collaborate with product, design, and platform teams to solve real customer problems and drive measurable outcomes. This role offers hands-on coding, architecture input, and opportunities to shape technical direction in a fast-growing, international fintech environment.

Compensaciones / Beneficios
• Partner with product, design and engineering to shape pragmatic solutions and deliver measurable outcomes
• Own end-to-end delivery from discovery through release, monitoring and iteration
• Turn ambiguity into action and balance speed with long-term maintainability
• Contribute to technical direction and product vision
• Leverage AI-assisted tools to accelerate development while maintaining high engineering standards
• Evaluate and troubleshoot AI-generated outputs and implement safeguards
• Share AI practices and help teammates adopt responsible experimentation




• Improve developer experience with automation and practices enabling reliable, frequent delivery
• Collaborate across product and platform teams and support a growth-oriented learning culture

Responsabilidades
• Professional software engineering experience with React and Node.js
• Backend services and APIs design experience
• Experience with frontend (React) and ideally React Native
• Ability to work across system boundaries and collaborate with non-primary engineers
• Experience with public cloud environments (Google Cloud, AWS, or Azure)
• Familiarity with DevOps concepts including CI/CD, observability, production operations
• Understanding of authentication, databases, distributed systems, cloud infra, and API integrations
• Builder-first, pragmatic mindset focused on shipping customer value
• Passion for maintainable, elegant code and continuous improvement
• Collaborative, constructive attitude and willingness to challenge ideas

Requisitos principales
• free mental health coaching
• yoga
• monthly versátil spending allowance
• employee stock options
• 30 annual vacation days
• flexible working hours

📌 Senior Software Engineer (Madrid)
🏢 Taxfix
📍 Madrid