Senior Software Engineer III, Payments Platform

Job Description

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

Qualifications

What We’re Looking For:

• 8+ years of experience in web application development

• Expertise in building scalable, high-performance distributed systems

• Strong foundations in OOP and relational databases

• Skilled in TDD/BDD and modern CI/CD practices

• Experience collaborating in cross-functional teams

• Excellent communication skills, fluent in English

• Background in FinTech or payments is a plus, but not required

• Passion for delivering high-quality code and continuous learning

Technologies You’ll Use:

• Ruby (Sinatra, Sequel, ActiveRecord) 💎

• Modern Java ☕

• MySQL, Postgres, Redis, Kinesis 🗄️

• Claude Code, Cursor, Copilot, Bedrock 🤖

• React, HTMX, Tailwind 💻

• AWS ECS microservices ☁️

• Domain Driven Design 🏗️

Why You’ll Love Working Here:

• Make a direct impact on global payments that affect millions of people

• Work in a collaborative, supportive team that values innovation and learning

• Enjoy flexible work arrangements and opportunities for career growth

• Be part of a mission-driven company recognized as one of the best places to work

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