Senior Software Engineer, Payments Platform

Compensation

€125K – €160K • Offers Equity • Offers Bonus

Airwallex promotes fair compensation practices in accordance with applicable national, federal, state, and local law.

These expected base pay ranges are based on information at the time this post was generated and represent the company’s good faith minimum and maximum ranges for this role at the time of posting.

The actual compensation offered to a candidate will be dependent upon multiple factors, including but not limited to relevant experience, skills and other qualifications, geographic location as noted, internal equity, and other external market factors.

Certain roles may be eligible for other compensation including, but not limited to, annual bonuses, commissions, RSUs, or other forms of compensation in addition to the established salary range.

Benefits vary by country and employment type in accordance with local statutory requirements. All employees receive at least the statutory minimum for paid annual leave and public holidays, with many of our locations offering additional company-provided vacation days.

For example, for US-based employees, they are eligible to participate in medical, dental, and vision insurance, a 401(k) plan, short-term and long-term disability, basic life insurance, and well-being benefits. US-based employees also receive 20 paid days of vacation and 12 paid days of company holidays in a calendar year.

Further details about our compensation and benefits package are available upon request by contacting our Talent Acquisition team.

Senior Software Engineer, Payments Platform

How you'll make impact

You'll help build the infrastructure that makes international payments reliable, scalable, and easier for businesses to accept across markets.

• Design and implement new capabilities across Airwallex's international payments platform, helping businesses accept and process payments reliably across markets.

• Build REST services and integration components within a backend microservices architecture, connecting with our React frontend.

• Shape the next generation of Payment Acceptance infrastructure, keeping merchant needs and business outcomes at the centre of your decisions.

• Conduct architectural reviews, address technical debt, and improve the operational effectiveness of current and upcoming solutions.

• Partner with the Payments Product team and, where needed, engineering teams at external partners.

You'll work in a hybrid setup, spending three days in the office.

What we're looking for

Essentials

• Over four years of experience using contemporary engineering methodologies, with an emphasis on continuous integration and quality engineering.

• Experience taking concepts from inception through implementation, with a focus on delivering thoroughly tested, high-quality solutions.

• Strong computer science fundamentals and recent hands-on experience with Java or Kotlin and Spring or Spring Boot.

• Experience designing and building REST APIs and working with high-volume distributed systems.

• Experience with Kafka event streams and distributed data storage systems such as Cassandra, Hazelcast, Oracle Coherence, or similar technologies.

• Experience with cloud platforms such as GCP or AWS, including services such as EC2, RDS, ELB, or CloudFront.

• Experience with containerisation technologies such as Docker and Kubernetes.

• Familiarity with operational tooling such as New Relic, StatsD, ELK, Datadog, or Prometheus.

Preferred

• Extensive experience developing payment gateways, acquiring platforms, issuing platforms, or equivalent payment systems.

• Experience integrating local payment methods such as iDEAL, Klarna, or Trustly.

• Experience working with major card schemes such as Visa or Mastercard.

You'll thrive here if

• You've worked in a high-growth or scaling environment and know what it takes to build systems that need to grow with the business.

• You own the outcome and you don't wait for permission to fix what's broken.

• You're comfortable with ambiguity. Give you a problem, not a prescription, and you'll run with it.

• You say what you mean. You're direct, but you lead with respect.

• You value in-person collaboration and are happy being in the office three days a week.

Learn more about your team

Payments Platform at Airwallex builds the infrastructure that turns global payment complexity into reliable, scalable payment experiences, helping businesses accept and process money across markets with less friction. The challenge is balancing performance, reliability, local complexity, and commercial outcomes in the same system, where small improvements can materially affect conversion and failures are immediately visible. You'll do well here if you're thoughtful, pragmatic, and motivated by making complex problems feel simple to customers. If you want to build the platform that makes payments work seamlessly for businesses around the world, this is the team at the center of that mission.