Senior Full Stack Software Engineer I

Flywire; Adelaide; On-site; AUD 130,000 - 170,000; Full time

Benefits offered by this job

Competitive compensation

Employee Stock Purchase Plan (ESPP)

Global induction program

Job summary

Flywire, a global payments software company, is seeking a Senior Software Engineer to join the billing and payments product team in Australia. You will design, build and maintain high‑value features that move hundreds of millions daily, working independently while collaborating with product, engineering and client teams across time zones.

The role emphasizes Java, Spring, and front‑end basics, with opportunities to use AI‑assisted tools, ensure security and performance, and contribute to

Qualifications

• 10+ years of professional application development experience.
• Proven production Java developer.
• Experience in FinTech or Higher Education sectors is highly appreciated.
• Ability to deliver high‑quality code in a fast‑paced environment.

Responsibilities

• Design, develop and maintain high‑quality, testable and maintainable code in the billing and payments system.
• Use AI‑tools to analyse codebases, answer architectural questions and accelerate system understanding.
• Ensure security, quality, scalability and performance are maintained at all times.
• Diagnose issues using tools and provide timely solutions.
• Communicate effectively with engineering, product and client teams; participate in client meetings when required.
• Engage in solutioning meetings, debating design choices in a collaborative manner.

Skills

Java development

Relational databases MySQL

Front-end basics HTML CSS JS

Spring Core / Spring MVC / Hibernate

AI-assisted tooling

Unit testing

Excellent communication

Tools

Git

Jenkins

IntelliJ/IDE

Job description

Are you ready to trade your job for a journey? Become a FlyMate!

Passion, excitement and global collaboration are core to what it means to be a FlyMate. At Flywire, we’re on a mission to deliver the world’s most important and complex payments. We use our Flywire Advantage – the combination of our next‑gen payments platform, proprietary payment network and vertical specific software – to help our clients get paid and help their customers pay with ease no matter where they are in the world.

Flywire is a global payments enablement and software company that has built solutions for high‑stakes, high‑value payments across education, healthcare, travel and B2B industries. With more than 5,100 clients in 240 countries and 140 currencies and a team of 1,400+ global FlyMates across 15 offices worldwide, we are looking for new colleagues to help us grow.

The Opportunity

We are looking for an experienced Senior Software Engineer to join our billing and payments product team in Australia. This full‑stack role will design, build and improve high‑value features that support the movement of hundreds of millions of dollars every day. You will work independently while collaborating with product, engineering and client teams across the globe.

Key Responsibilities

• Design, develop and maintain high‑quality, testable and maintainable code in the billing and payments system.
• Use AI‑tools to analyse codebases, answer architectural questions and accelerate system understanding.
• Ensure security, quality, scalability and performance are maintained at all times.
• Diagnose issues using tools and provide timely solutions.
• Communicate effectively with engineering, product and client teams; participate in client meetings when required.
• Engage in solutioning meetings, debating design choices in a collaborative manner.

Technical Requirements

• Strong Java development experience.
• Deep knowledge of relational databases (MySQL) and object‑oriented concepts.
• Spring Core / Spring MVC / Hibernate experience is a plus.
• Front‑end skills: HTML, CSS, JavaScript and JSP.
• Comfortable using AI‑assisted development tools and writing comprehensive tests for new code.

Qualifications

• Self‑reliant, proactive engineer who owns tasks and seeks leadership when needed.
• Adaptable learner able to work with legacy code and deliver on time.
• Good at turning high‑level goals into actionable technical designs.
• Excellent communicator, comfortable working with diverse teams across time zones.
• 10+ years of professional application development experience.
• Proven production Java developer.
• Experience in FinTech or Higher Education sectors is highly appreciated.
• Ability to deliver high‑quality code in a fast‑paced, evolving environment.

What We Offer

• Competitive compensation.
• Employee Stock Purchase Plan (ESPP).
• Immersive Global Induction Program.
• Well‑being programs (mental health, wellness and fitness classes).
• Generous paid time off and volunteering opportunities.
• Digital disconnect days and other benefits for a balanced life.
• Talent development programs for emerging leaders.

Submit today and get started! We are excited to meet you and will guide you through our hiring process.

Flywire is an equal opportunity employer and follows a policy of administering all employment decisions and personnel actions without regard to race, colour, religion, sex, pregnancy, gender identity, national origin, age, ancestry, physical or mental disability, sexual orientation, genetic disposition or carrier status, veteran status, or any other category protected under applicable national, federal, state or local law.