Staff Software Engineer, Backend - Scale (Relocate to Singapore) jobs in United States
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Airwallex · 14 hours ago

Staff Software Engineer, Backend - Scale (Relocate to Singapore)

Airwallex is a unified payments and financial platform for global businesses, empowering over 200,000 companies worldwide. They are seeking a Staff Software Engineer for the Scale team to develop and maintain multi-tenant infrastructure, design technical solutions for enterprise prospects, and collaborate with cross-functional teams to innovate in the financial services space.

FinanceFinancial ServicesFinTechPayments
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H1B Sponsor Likelynote

Responsibilities

Build and maintain the multi-tenant infrastructure powering companies like Brex, Rippling, Navan, Qantas, and SHEIN
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
Design integrations for enterprise prospects by translating their business requirements into technical solutions
Your work will directly impact the growth and success of businesses worldwide
Work alongside a team of talented engineers, product managers, and designers to bring our Embedded Finance products from concept to launch
Dive deep into the needs and challenges of our customers
Leverage data to drive decisions

Qualification

JavaSpring BootSolutions ArchitecturePostgreSQLRedisKafkaCloud PlatformsFintech ExperiencePerformance TuningMulti-tenant SaaSOAuth2.0API DesignCross-region DeploymentCustomer-facing Experience

Required

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

Preferred

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

Benefits

Be Part of Something Big: Join a team that's redefining the future of finance. Your work will have a direct impact on our mission to revolutionize financial services.
Grow With Us: At Airwallex, we're committed to your professional development. You'll have opportunities to learn, grow, and shape your career path in a fast-paced, innovative environment.
Collaborate With the Best: Work with a team of talented and passionate individuals who are driven by the desire to create something extraordinary.

Company

Airwallex

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Airwallex is a global payments and financial platform that provides business accounts, payment solutions, and spend management tools.

H1B Sponsorship

Airwallex has a track record of offering H1B sponsorships. Please note that this does not guarantee sponsorship for this specific role. Below presents additional info for your reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (16)
2024 (6)
2022 (2)

Funding

Current Stage
Late Stage
Total Funding
$1.53B
Key Investors
AdditionSquare Peg CapitalLone Pine Capital
2025-12-08Series G· $330M
2025-05-21Series F· $150M
2025-05-21Secondary Market· $150M

Leadership Team

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Jack Zhang
Co-Founder & CEO
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Jacob Dai
Co-Founder & CTO
Company data provided by crunchbase