Experteer Overview Las cualificaciones, habilidades y toda la experiencia relevante necesaria para este puesto se pueden encontrar en la descripción completa a continuación. As a Senior Backend Software Engineer at Mambu, you will build secure, high-performance bank connectivity and payment automation features. You’ll own architectural decisions for complex backend systems and collaborate with cross-functional teams to deliver scalable fintech solutions. You’ll shape the technical direction, mentor peers, and drive security-by-design across public and internal APIs. This role offers impact at scale within a fast-paced, innovative fintech environment. You’ll work on critical, high-stakes production issues and help accelerate product velocity.Compensaciones / Incentivos• Develop bank connectivity and payment automation features with emphasis on security, stability, and performance• Own architectural decisions for complex, high-impact projects and guide technical direction• Collaborate with Product Managers and DevOps engineers to maintain fast,



iterative delivery• Apply security-by-design principles to APIs and systems• Solve architectural challenges to reduce complexity while delivering value• Mentor and upskill junior/mid-level engineers through code reviews and pairing• Define and execute the technical roadmap to improve velocity and manage technical debt• Serve as technical reference for critical incidents and production issuesResponsabilidades• 5+ years of professional software engineering experience, with strong Golang expertise• Background in fintech, banking, or payments (SEPA, Swift, Ebics…)• Proven track record designing and owning distributed backend systems in production• Strong relational database and SQL skills, including high-concurrency and transactional integrity xqbhyrx • Experience building high-volume SaaS platforms with maintainable and well-documented code• Advanced API design skills with focus on security, versioning, and documentation• Proven ability to mentor engineers and raise engineering standards• Curious, product-oriented mindset with high autonomyRequisitos principales• Competitive base salary• Company equity for all• Learning and development opportunities• Hybrid/Remote working (location dependant)• 60 day working abroad• 4 week paid sabbatical after 5 years service

📌 Senior Software Engineer (Barcelona)
🏢 Mambu
📍 Barcelona