Skip to Main Content

Job Title


Senior Backend Engineer, Financial Markets


Company : Airwallex


Location : Melbourne, Victoria


Created : 2026-01-31


Job Type : Full Time


Job Description

Senior Backend Engineer, Financial MarketsJoin to apply for the Senior Backend Engineer, Financial Markets role at Airwallex.About the CompanyAirwallex is the only unified payments and financial platform for global businesses. Powered by our unique combination of proprietary infrastructure and software, we empower over 200,000 businesses worldwideincluding Brex, Rippling, Navan, Qantas, SHEIN and many moreto manage business accounts, payments, spend management, treasury, and embedded finance at a global scale. Proudly founded in Melbourne, we have a team of over 2,000 of the brightest and most innovative people in tech across 26 offices worldwide. Valued at US$8 billion and backed by worldleading investors, we are building the global payments and financial platform of the future.Attributes We ValueWe hire successful builders with founderlike energy who want real impact, accelerated learning, and true ownership. You bring strong rolerelated 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 zerotoone ideas into real products, and you "get stuff done" endtoend. You use AI to work smarter and solve problems faster. Here, you''ll tackle complex, highvisibility problems with exceptional teammates and grow your career as we build the future of global banking.About the Team: Financial MarketsThe Financial Markets team powers the core FX and liquidity technology at Airwallex. Within this team, our liquidity platform ensures that funds are always in the right place at the right time, optimising flows, enabling seamless internal transfers across currencies, and supporting global business needs. From forecasting liquidity requirements to solving complex scaling challenges, we build datadriven, precise solutions that keep Airwallex running at speed.What You''ll DoDesign, build and own backend services for FX pricing, execution and risk management, with a focus on performance, correctness and reliability.Contribute to the evolution of our FX platform architecture (microservices, eventdriven workflows, Kafka, gRPC, SQL/NoSQL datastores), keeping latency low and throughput high.Implement and maintain robust controls for pricing, limits, risk, reconciliation and monitoring, ensuring our systems behave predictably under stress and failure scenarios.Work endtoend on features: from requirements and solution design to implementation, automated testing, deployment and operational runbooks.Collaborate with Product, Treasury, Risk, Data and other engineering teams to design APIs and data contracts that are easy to use, observable and backward compatible.Instrument services with metrics, logs and tracing, and use these to drive capacity planning, performance optimisation and incident resolution.Participate in code reviews, technical design discussions and knowledgesharing sessions; mentor lessexperienced engineers where appropriate.Take part in our oncall rotation (with strong observability, runbooks and support from the team) to ensure the FX platform remains reliable and highly available.Who You AreYou are a experienced backend engineer who is comfortable working in complex domains like financial markets, payments or other highintegrity distributed systems. You care deeply about correctness, simplicity and operability, and you''re happy to engage with product and nontechnical stakeholders on tradeoffs. You''re pragmatic: you can balance ideal architectures with the realities of delivery, and you''re comfortable iterating on systems that are already in production.Minimum Qualifications5+ years of experience building and operating backend systems in production.Strong programming experience in one or more JVM languages (e.g. Kotlin, Java) or a comparable backend stack, and a willingness to work primarily in the JVM ecosystem.Solid understanding of distributed systems fundamentals: concurrency, data consistency, idempotency, retries, backoff, and failure modes in networked services.Experience designing and working with REST and/or gRPC APIs, and persistence layers using relational databases (e.g. PostgreSQL) and/or keyvalue stores.Proficiency with eventdriven architectures and message brokers/streams (e.g. Kafka or similar).Strong focus on testing and quality: unit, integration and contract tests; familiarity with CI/CD pipelines.Good grasp of observability: metrics, logging, tracing and alerting, and how to use them to debug production issues.Clear written and verbal communication skills; comfortable working with crossfunctional partners in a fastpaced environment.Why Join UsImpact: Contribute to a platform that is transforming the fintech landscape and supporting thousands of businesses worldwide.Growth: Advance your career with opportunities to lead projects and initiatives in an environment that supports your professional development.Innovation: Work with the latest technologies and be part of a culture that dares to challenge the status quo.Culture: Join a team that values transparency, inclusivity, and collaboration.Benefits: Enjoy competitive salaries, comprehensive health benefits, and a flexible work environment that respects worklife balance.Applicant Safety Policy: Fraud and ThirdParty RecruitersTo protect you from recruitment scams, please be aware that Airwallex will not ask for bank details, sensitive ID numbers (i.e. passport), or any form of payment during the application or interview process. All official communication will come from an @airwallex.com email address. Please apply only through careers.airwallex.com or our official LinkedIn page.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.Equal OpportunityAirwallex is proud to be an equalopportunity employer. We value diversity and anyone seeking employment at Airwallex is considered based on merit, qualifications, competence and talent. We don''t regard colour, 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.Other DetailsSeniority level: MidSenior levelEmployment type: FulltimeJob function: Engineering and Information TechnologyReferrals increase your chances of interviewing at Airwallex by 2x.#J-18808-Ljbffr