Staff Software Engineer, Backend

Staff Software Engineer, Backend - Scale

Airwallex

Location:
Singapore , Singapore

Category:
IT - Software Development

Contract Type:
Not provided

Salary:

240000.00 - 300000.00 SGD / Year

Save Job

Apply Position

Job Description:

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.

Job Responsibility:

Embedded Finance Platform: Build and maintain the multi-tenant infrastructure powering companies like Brex, Rippling, Navan, Qantas, and SHEIN. You'll 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, like tax systems, compliance-driven flows, or monetization tools
Solutions Architecture: Design integrations for enterprise prospects by translating their business requirements into technical solutions. Your architectural decisions directly influence deal outcomes—from enabling multi-million dollar contracts to differentiating in competitive sales
Develop and Innovate: Your work will directly impact the growth and success of businesses worldwide
Collaborate and Create: Work alongside a team of talented engineers, product managers, and designers to bring our Embedded Finance products from concept to launch. Your input will be crucial in shaping the future of finance
Understand and Empathize: Dive deep into the needs and challenges of our customers. Your good product sense will enable you to design and implement solutions that truly resonate with our users
Measure and Optimize: Leverage data to drive decisions. Your keen data sense will help you measure the success of our products and identify opportunities for optimization and growth

Requirements:

Have 5+ 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 vs. velocity based on business impact
Thrive in cross-functional environments spanning Product, Design, Compliance, and Sales
Design for scale, maintainability, and production excellence
(Staff) Have led multi-team initiatives with measurable technical or business impact

Nice to 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

What we offer:

Offers Equity
US-based employees are eligible to participate in medical, dental, and vision insurance, a 401(k) plan, short-term and long-term disability, basic life insurance, and well-being benefits
US-based employees also receive 20 paid days of vacation and 12 paid days of company holidays in a calendar year

Additional Information:

Job Posted:
February 21, 2026

Employment Type:

Fulltime

Work Type:

On-site work

Airwallex - All Job Offers

Job Link Share: