Senior Software Engineer, Edge Team

Airwallex; Singapore; On-site; SGD 75,000 - 95,000; Full time

Job summary

A global financial technology company in Singapore seeks a Senior Software Engineer to architect and build edge infrastructure. You will work on high-quality code, design scalable services, and have end-to-end ownership of features that improve performance and security. With over 5 years of back-end experience and proficiency in languages like Java, Go, or Python, you'll collaborate with product and security teams to deliver impactful solutions. This is an opportunity to grow within a pioneering company.

Qualifications

• 5+ years of back-end development experience, building large-scale, high-throughput services.
• Proficient in one or more programming languages with strong software-design skills.
• Comfortable partnering across product, platform, and security teams.

Responsibilities

• Architect and ship new gateway and CDN features.
• Build libraries and pipelines for security controls embedded in the edge stack.
• Create CLI/plugins and frameworks for API registration and traffic insights.
• Analyze metrics for performance and reliability, delivering optimizations.

Skills

Back-end development

Java

Go

Python

Software design

System thinking

Education

Bachelor’s degree in Computer Science or related field

Job description

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 200,000 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 2,000 of the brightest and most innovative people in tech across 26 offices around the globe. Valued at US$8 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 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.

About the Role

We are looking for skilled Senior Software Engineers to help shape and evolve Airwallex’s edge infrastructure—you’ll architect and build the software foundations that power Airwallex’s global edge. You’ll write high‑quality code, design scalable services, and own end‑to‑end features that make our API gateway, CDN layer, DNS routing, and perimeter security smarter, faster, and more resilient.

You’ll partner closely with product, platform, and security experts to translate real‑world requirements into clean, maintainable code—and see your work go live for millions of requests every day.

What You’ll Be Doing

• Next‑Gen Edge Services: Architect and ship new gateway and CDN features (think plugin‑driven routing, smart cache policies, dynamic purge APIs).

• Security as Code: Build libraries and pipelines for rate‑limits, WAF/filter rules and bot‑detection, all embedded directly into our edge stack.

• Self‑Service Tooling: Create CLI/plugins and lightweight frameworks so other teams register APIs, enforce policies, and preview traffic insights in seconds.

• Rock‑Solid Reliability: Dive into metrics, pinpoint latency or fail‑over gaps, and deliver code‑level optimizations to keep every request fast and flawless.

Minimum Qualifications

• Bachelor’s degree or above in Computer Science, Engineering, or a related field.

• 5+ years of back‑end development experience, building large‑scale, high‑throughput services.

• Proficient in one or more languages such as Java, Go, Python, or similar, with strong software‑design and system‑thinking skills.

• Comfortable partnering across product, platform, and security teams; able to explain complex ideas clearly.

Preferred Qualifications

• 3+ years designing and operating distributed, low‑latency systems (API gateway, cache, etc) or security‑focused development

• Use data to identify performance or reliability bottlenecks and deliver targeted, code‑level improvements.

• Thrive in a fast‑paced environment, take full ownership of your work, and continuously iterate based on feedback.

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 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 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.