Software Engineer II, Payments Platform Are you ready to trade your job for a journey? At Flywire, passion, excitement, and global collaboration are core to who we are. We’re on a mission to power the world’s most important and complex payments. Using our Flywire Advantage – the combination of next‑gen payments platform, proprietary global payment network, and vertical‑specific software – we help clients get paid, and their customers pay with ease, no matter where they are in the world.

The Opportunity We’re seeking a Software Engineer II to help build and scale the platform that powers our industry‑leading payment engine – moving hundreds of millions daily. You’ll design new features, improve existing functionality, and ensure our systems deliver speed, cost efficiency, and scalability. This role is perfect for someone who thrives on collaborative problem‑solving, writing clean and secure code, and taking full ownership of product quality within a cross‑functional team.

What you’ll do

Build, maintain, and optimise scalable and secure services.

Write clean, testable, maintainable, and extendable code.

Solve complex technical challenges and production issues.

Evaluate data and scenarios to make sound design and technical decisions.

Improve scalability, performance, and reliability across our systems.

Contribute to product vision, collaborating with Product Managers, Designers, and Engineers globally.

Mentor and support fellow developers to grow their skills.

What we’re looking for

2+ years’ experience in application development.

Strong expertise in web services and REST architecture.

Proven experience building scalable, distributed systems.

Product‑oriented mindset with focus on business impact.





Hands‑on experience with cloud platforms (AWS, Azure, etc.).

Understanding of observability tools and principles.

Experience with agentic development tools like Claude Code or OpenAI Codex.

Knowledge of relational databases.

Strong fundamentals in object‑oriented design.

Experience collaborating in cross‑functional teams (QA, Product, SRE).

Fluent in English.

FinTech or payments industry experience is a plus.

Tech stack you’ll work with

Backend

Java, Ruby

Frontend

React, JavaScript, HTML5, CSS3

Databases & systems:

Linux, MySQL, MongoDB, Redis, Sidekiq, AMQP, ElasticSearch

Cloud

AWS

Version control & CI/CD:

GitLab

Agentic AI

Claude Code, Cursor

We Offer

Competitive compensation

Employee Stock Purchase Plan (ESPP)

Flying Start – Our immersive Global Induction Program

Dynamic & Global Team (collaborating virtually for years)

Wellbeing Programs (Mental Health, Wellness) with Integral FlyMates

Meaningful impact – every FlyMate contributes to our success

Competitive time off, including FlyBetter Days to volunteer in a cause you believe in

Digital Disconnect Days

Great Talent & Development Programs

Submit today and get started!

We are excited to get to know you! Throughout our process you can expect to meet with different FlyMates including the Hiring Manager, peers on the team, the VP of the department, and a skills assessment. Your Talent Acquisition Partner will walk you through the steps and be your “go-to” person for any questions.

Flywire is an equal opportunity employer. With over 30 nationalities across 12 different offices, and diversity and inclusion at the core of our people agenda, we believe our FlyMates are our greatest asset, and we’re excited to watch our unique culture evolve with each new hire.

📌 Software Engineer II, Payments Platform (Madrid)
🏢 Flywire
📍 Madrid