Senior Backend Software Engineer II, Platform; FX

Senior Backend Software Engineer II Payments Platform (FX)

Location:

London with Hybrid / Remote Options too

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

At Flywire we are building and scaling the core platform that powers global money movement, processing hundreds of millions every day for clients across industries. We’re looking for an experienced Senior Software Engineer II ideally with a background in Fin Tech to play a pivotal role in strengthening the very heart of our payments engine.

Your work won’t just be about clean code: it will drive end-to-end automation in payment processing (from 0 to 80%) reduce manual effort in FX trading and deliver clear visibility into significant yearly savings. By automating and optimising processes you’ll enable our Payments Operations team to focus on higher‑value ROI‑driven work multiplying your impact across the business.

• Design build and maintain clean secure testable and scalable code
• Resolve challenging bugs and production issues ensuring reliability of the global platform
• Evaluate complex technical problems using sound judgement to select the right methods and approaches
• Improve performance and scalability of our systems as we expand worldwide
• Drive automation initiatives that reduce manual effort and unlock measurable business savings
• Collaborate with Product Managers and stakeholders to shape product vision and deliver real business value
• Mentor teammates and take initiative in leading technical projects
• Support recruitment efforts by helping identify and inspire great engineering talent

• 8 years of experience in professional software engineering.
• Proven experience with scalable, performant and reliable distributed systems.
• Strong background in TDD, BDD, CI/CD practices.
• Understanding of relational databases.
• Strong fundamentals in object‑oriented design.
• Excellent collaboration skills across functions (QA, Product, SRE, Stakeholders).
• A passion for delivering high‑quality code and a mindset of continuous learning.
• Fin Tech or payments industry experience is a major plus.

• Backend:
  Ruby, Java
• Frontend: HTMX, React
• Databases & systems:
  Linux, MySQL, Postgres, Redis, AMQP, Open Search
• Cloud: AWS

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.

• 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 #Inside Flywire on social media
• Dynamic & Global Team (we have been collaborating virtually for years!)
• Wellbeing Programs (Mental Health & Wellness) with Global Fly Mates
• Be a meaningful part in our success – every Fly Mate makes an impact
• Competitive time off including Fly Better 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 Fly Mates 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 Fly Mates are our greatest asset and we’re excited to watch our unique culture evolve with each new hire.

Flywire is an equal opportunity employer.

Remote Work:
Yes

Employment Type:

Full-time

Spring,.NET,C / C++,Go,React,OOP,C#,AWS,Data Structures,Software Development,Java,Distributed Systems

Experience:

years

Vacancy: 1