Software Engineer II, Payments Platform
External
Flywire1 · València, SpainPrepare for this interview
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About the role
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.
Responsibilities
- 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.
Requirements
- 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 (o11y) 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
Benefits
Additional Information
Software Engineer II, Payments Platform ✨ Work for a global payments leader, consistently ranked one of the best companies to work for. ✨ 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. With 4,000+ clients in 240+ countries and territories, transactions in 140+ currencies, and 1,200+ FlyMates representing 40+ nationalities, we're just getting started. 🚀
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