Staff Site Reliability Engineer, Spend Foundations

Airwallex is the only unified payments and financial platform for global businesses. Powered by our unique combination of proprietary infrastructure and software, we empower over 150,000 businesses worldwide – including Brex, Rippling, Navan, Qantas, SHEIN and many more – with fully integrated solutions to manage everything from business accounts, payments, spend management and treasury, to embedded finance at a global scale.

Proudly founded in Melbourne, we have a team of over 1,800 of the brightest and most innovative people in tech across 26 offices around the globe. Valued at US$6.2 billion and backed by world-leading investors including Visa, Airtree, Blackbird, Sequoia, DST Global, Greenoaks, Salesforce Ventures, Lone Pine, and Square Peg, Airwallex is leading the charge in building the global payments and financial platform of the future. If you’re ready to do the most ambitious work of your career, join us.

We hire successful builders with founder-like energy who want real impact, accelerated learning, and true ownership. You bring strong role-related expertise and sharp thinking, and you’re motivated by our mission and operating principles. You move fast with good judgment, dig deep with curiosity, and make decisions from first principles, balancing speed and rigor.

You're humble and collaborative; turn zero‑to‑one ideas into real products, and you “get stuff done” end-to-end. You use AI to work smarter and solve problems faster. Here, you’ll tackle complex, high‑visibility problems with exceptional teammates and grow your career as we build the future of global banking. If that sounds like you, let’s build what’s next.

The Engineering team at Airwallex is a diverse group of innovators, builders, and problem solvers, driven by a mission to empower businesses to operate anywhere, anytime. We thrive in a collaborative and fast-paced environment, constantly pushing the boundaries of what's possible in financial technology. We value technical craftsmanship, continuous learning, and strong ownership, building scalable, reliable, and secure products that enable global business growth.

Our SRE team pioneers new engineering solutions to complex challenges, setting standards and frameworks for other teams. We take ownership of the availability, performance, monitoring, and capacity planning of our global services, driving operational excellence at scale.

As a Staff Site Reliability Engineer, you will be a technical leader and strategist within the SRE function, shaping the future of Airwallex’s reliability and infrastructure landscape. You’ll partner closely with product and engineering leadership to define the SRE roadmap, driving large-scale infrastructure projects and reliability initiatives that have global impact.

You will mentor senior engineers, lead cross-team collaborations, and influence engineering culture and processes across the company. You’ll own the architecture and delivery of highly complex infrastructure systems, lead incident management at the highest level, and champion automation, observability, and operational excellence across critical services.

This role can be based in Singapore or Melbourne.

• Drive the strategic vision and roadmap for Site Reliability Engineering at Airwallex, aligned with business objectives and product goals.

• Architect and oversee the implementation of highly scalable, secure, and resilient cloud infrastructure for new services and platform-wide initiatives.

• Lead and mentor senior engineers and cross-functional teams in reliability engineering best practices, automation, and incident management.

• Champion and evolve operational excellence through advanced observability, SLO management, runbooks, and proactive risk mitigation.

• Lead incident response for high-severity incidents, facilitating post-mortems and driving continuous improvements.

• Collaborate closely with Product, Engineering, Security, and DevOps leadership to ensure compliance, resilience, and alignment across functions.

• Influence and shape engineering culture around reliability, scalability, and DevOps principles across multiple teams.

• Advocate for innovation in tooling, automation, and infrastructure to improve developer productivity and service uptime.

We're looking for people who meet the minimum qualifications for this role. The preferred qualifications are great to have, but are not mandatory.

• 10+ years of experience in SRE, DevOps, or infrastructure engineering roles, with progressive responsibility.

• Proven ability to lead SRE strategy and execution for large-scale, complex, cross-functional projects.

• Deep expertise with cloud platforms (AWS/GCP), Kubernetes, container orchestration, observability, and incident response frameworks.

• Strong experience supporting production systems with stringent high availability, compliance, and security requirements.

• Demonstrated leadership in mentoring and growing technical teams.

• Excellent collaboration and communication skills, able to influence stakeholders at all levels.

• Degree in Computer Science or related field.

• Experience in a fintech or similarly regulated industry

• Familiarity with data streaming, analytics pipelines, or financial data systems

Airwallex is proud to be an equal opportunity employer. We value diversity and anyone seeking employment at Airwallex is considered based on merit, qualifications, competence and talent. We don’t regard color, religion, race, national origin, sexual orientation, ancestry, citizenship, sex, marital or family status, disability, gender, or any other legally protected status when making our hiring decisions. If you have a disability or special need that requires accommodation, please let us know.

Airwallex does not accept unsolicited resumes from search firms/recruiters.  Airwallex will not pay any fees to search firms/recruiters if a candidate is submitted by a search firm/recruiter unless an agreement has been entered into with respect to specific open position(s).  Search firms/recruiters submitting resumes to Airwallex on an unsolicited basis shall be deemed to accept this condition, regardless of any other provision to the contrary. If you are approached by someone claiming to represent Airwallex, please verify with our team.