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Staff software engineer, scale

London
Airwallex
Software engineer
€115,000 a year
Posted: 19h ago
Offer description

What the Scale Team Does

* Embedded Finance Platform: Build and maintain the multi‑tenant infrastructure powering companies like Rippling, Navan, Qantas, and SHEIN. Architect systems that aggregate requests from all platform customers, meeting enterprise‑grade SLAs for availability, latency and throughput while handling cross‑data‑center scenarios.
* Cross‑Domain Product Features: Own features that require synthesizing knowledge across business, regulatory and technical domains—areas where no single existing team has full coverage, such as tax systems, compliance‑driven flows or monetization tools.
* Solutions Architecture: Design integrations for enterprise prospects by translating their business requirements into technical solutions. Architectural decisions directly influence deal outcomes—enabling multi‑million dollar contracts and differentiating in competitive sales.


Who You Are

* Have 8+ years of software engineering experience (8+ for Staff) in Java/Spring Boot.
* Excel at making the right level of abstraction—balancing flexibility and simplicity in system/component design.
* Demonstrate clean communication across technical and non‑technical stakeholders.
* Make pragmatic decisions on when to optimize for performance versus velocity based on business impact.
* Thrive in cross‑functional environments spanning Product, Design, Compliance and Sales.
* Design for scale, maintainability and production excellence.
* Have led multi‑team initiatives with measurable technical or business impact.


Bonus if you have

* Fintech, payments or regulated industry experience.
* High‑scale performance tuning (100k+ QPS, large user bases, strict latency SLAs).
* Multi‑tenant SaaS or platform architecture background.
* Proficiency with PostgreSQL, Redis, Kafka or cloud platforms (AWS/GCP/Azure).
* Experience with OAuth2.0, API design or developer documentation.
* Cross‑region deployment or data residency compliance experience.
* Solutions engineering or customer‑facing technical experience.


Why Join Us

* Build Something That Matters: Your work directly impacts how millions of people use financial services. Companies like Rippling and SHEIN rely on infrastructure you’ll build.
* Grow Beyond Engineering: You'll develop expertise that extends beyond technical skills—understanding customer business models, navigating regulatory landscapes, influencing enterprise sales.
* Join a World‑Class Team: Work with exceptional engineers, product thinkers and designers across the globe.

Compensation Range: £95,000 - £177,000 + bonus + RSU


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.

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