Senior Software Engineer III

Job Description

Senior Software Engineer II

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 looking for an experienced Senior Software Engineer II — ideally with a background in FinTech — to help build and scale the platform that powers our industry-leading payment engine, moving hundreds of millions every day.

You’ll join a collaborative team focused on designing new functionality and enhancing existing capabilities to drive speed, cost-efficiency, and scalability. Success here means more than writing great code: it’s about problem-solving pragmatically, taking ownership as a team, and delivering impact that’s felt across Flywire and our clients worldwide.

What You’ll Do

• ✍️ Write clean, secure, high-quality, testable, and maintainable code
• 🐞 Resolve complex bugs and production issues, ensuring system stability
• 🧠 Analyse challenging problems where multiple variables demand thoughtful solutions
• ⚖️ Exercise sound judgement when selecting methods, tools, and evaluation criteria
• ⚡ Drive improvements in scalability and performance across our systems
• 🔄 Lead change and improvement through all phases of the development lifecycle
• 🤝 Collaborate with Product Managers and stakeholders to shape product vision
• 🌱 Mentor teammates and take initiative in leading technical projects
• 🎯 Support recruitment by identifying and inspiring great engineering talent
• ✅ Ensure the best possible performance, quality, and responsiveness of our applications

Qualifications

What We’re Looking For

• 8+ years of experience in web application development
• Proven expertise in building scalable, performant, and reliable distributed systems
• Strong foundations in object-oriented programming and relational databases
• Skilled in test-driven and behaviour-driven development (TDD/BDD)
• Hands-on experience with CI/CD pipelines and modern development practices
• Ability to partner effectively with QAs, Product, and SREs in a cross-functional team
• Excellent communication skills — able to convey complex ideas clearly
• Fluent in English (our company’s working language)
• Experience in FinTech or the payments industry (a plus, not required)
• A passion for delivering high-quality code and continuously learning

Technologies We Use ⚙️

• ☕ Java
• 🌱 Spring & Hibernate frameworks
• 🗄️ MySQL
• 💻 JavaScript, HTML5, CSS3
• ☁️ AWS Cloud

⚡ Why Join Us?
At Flywire, you’ll have the freedom to innovate, the scale to make a global impact, and the support of a culture that values collaboration, curiosity, and excellence. Every line of code you write helps power the movement of money across borders — making payments faster, smarter, and more efficient worldwide 🌍💸.

Additional Information

What We Offer:

• Competitive compensation, including Restricted Stock Units
• Employee Stock Purchase Plan (ESPP)
• Flying Start - Our immersive Global Induction Program
• Work with brilliant people that will keep you on your toes, learn more about their journeys by checking out #InsideFlywire on social media
• Dynamic & Global Team (we have been collaborating virtually for years!)
• Wellbeing Programs (Mental Health, Wellness) with Global FlyMates
• Be a meaningful part in our success - every FlyMate makes an impact
• Competitive time off including FlyBetter Days to volunteer in a cause you believe in and
• 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. #LI-Remote

Flywire is an equal opportunity employer.

#LI-Hybrid #LI-Remote