Senior Software Engineer III, Payments Platform

Senior Software Engineer III, Payments Platform

Location: Valencia hybrid but will consider Spain remote for the right calibre of candidate

The Opportunity:

Work for a global payments leader, consistently ranked one of the best companies to work for 🌍.

At Flywire, we’re on a mission to simplify and modernize payments for businesses and institutions worldwide. Every day, our platform moves hundreds of millions of dollars, and we’re looking for a Senior Software Engineer III to help us scale faster, smarter, and more securely.

If you enjoy solving complex problems, building reliable systems at scale, and mentoring peers, you’ll thrive here. Success is more than writing great code: it’s about making a real impact across our products, teams, and global clients.

What You’ll Do:

• Build clean, secure, high-quality, testable, and maintainable code that powers global payments

• Resolve complex production issues and ensure system reliability and stability

• Analyze challenging problems and design pragmatic, scalable solutions

• Lead improvements across performance, scalability, and developer experience

• Collaborate with Product Managers, QAs, SREs, and stakeholders to shape product vision

• Mentor teammates and drive technical initiatives

• Support recruitment by attracting and inspiring engineering talent

• Influence all stages of the development lifecycle, from design to production