Senior Software Engineer, Infrastructure (Citizen Dev)

About Airwallex

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 250,000 businesses worldwide – including Brex, 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 2,300 of the brightest and most innovative people in tech across 27 offices around the globe. Valued at US$11 billion and backed by world-leading investors including T. Rowe Price, Visa, Mastercard, Robinhood Ventures, Sequoia, Salesforce Ventures, DST Global, and Lone Pine Capital, 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.

Attributes We Value

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 andoperating 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.

About The Team

TheCitizen Developers Infrastructure team sits within theInfrastructure & Productivity organization and is responsible for the internal platform that powers critical business processes at Airwallex.

We build and operate a citizen‑developer platform that lets non‑product engineering groups safely build and run workflows and automations. Our goal is to make it easy and safe for these “citizen developers” to ship value quickly while embedding security, compliance, and software engineering best practices by default.

This role is based inSingapore.

What You’ll Do

As aSenior/Staff Software Engineer on the Citizen Developers Infrastructure team, you will design, build, and operate theplatform services that underpin Airwallex’s citizen‑developer ecosystem and internal workflow automation.

You will partner closely with application teams and citizen developers to define tooling, patterns, and development processes, while continuously improving the platform abstractions and paved paths they build on. You’ll be responsible both for thedeveloper experience and guardrails of the platform, and for theunderlying workflow infrastructure that makes it reliable and scalable.

Responsibilities

• Design, build, and evolve thecitizen‑developer platform and tools that make it easy to create and operate automation / applications without deep infrastructure knowledge.

• Establishsecure SDLC and guardrails for citizen‑developer‑built applications so compliance and security are baked in by default.

• Buildself‑serve development and operations tooling that reduce dependence on central platform engineers.

• Design, build, and maintain theTemporal‑based workflow infrastructure, addressing challenges such as multi‑tenancy, high availability, and cost effectiveness.

• Contribute to theKubernetes and GitOps foundation (ArgoCD, Helm, Terraform) that powers the platform, ensuring deployments are safe, repeatable, and auditable.

• Participate incode reviews, technical design discussions, and on‑call rotation for workflow‑related services, leading incident response and driving long‑term fixes where needed.

• Document standards, best practices, and reference architectures so teams building on top of the platform have clear, self‑serve guidance.

Who You Are

You are a backend/platform engineer who enjoysbuilding shared platforms, cares deeply aboutdeveloper experience, correctness, and operability, and is comfortable working at the intersection ofapplication code and infrastructure.

You get energy from enabling other teams to move faster safely, through well‑designed abstractions, tooling, and guardrails.

Qualifications

• 6+ years of experience inSoftware / Platform Engineering roles, building and operating backend or platform services in production.

• Strong hands‑on experience with at least onestrongly typed backend language (e.g., Golang, Java) and familiarity withPython or Bash for tooling/automation.

• Experiencedesigning and building internal platforms or developer tooling used by multiple teams, with a strong focus on developer experience.

• Experience withKubernetes andGitOps practices/tooling (ideally ArgoCD and Terraform).

• Experience building platforms or tooling fornon‑product engineering users (e.g., operations, finance, analysts) orlow‑code/no‑code / citizen‑developer environments is a strong plus.

• Proven experience withTemporal or similar workflow/orchestration systems (e.g., Cadence, Step Functions, Airflow) or large‑scale stateful workloads (e.g., Redis clusters, Cassandra, HBase) in production is a huge plus.

• Comfortable working inhighly collaborative, multi‑team environments, able to translate platform constraints into clear APIs, contracts, and paved paths for application teams and citizen developers.

• Practical, proactive problem solver who cannavigate ambiguity, break down complex technical problems, and drive them to closure.

Applicant Safety Policy: Fraud and Third-Party Recruiters

To 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 throughcareers.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 opportunity

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.