Senior Backend Engineer, Expenses jobs in United States
cer-icon
Apply on Employer Site
company-logo

Airwallex · 1 day ago

Senior Backend Engineer, Expenses

positionSan Francisco, CA
timeFull-time
remoteOnsite
senioritySenior Level
money$147K/yr - $252K/yr
date6+ years exp

Airwallex is a unified payments and financial platform for global businesses, empowering over 200,000 businesses worldwide. The Senior Backend Engineer will take full ownership of critical backend systems for the expenses product, driving technical direction and architecture while ensuring high performance and security of the platform.

FinanceFinancial ServicesFinTechPayments
check
H1B Sponsor Likelynote

Responsibilities

Lead the design, architecture, and implementation of backend services, ensuring they are robust, scalable, and secure
Write clean, maintainable, and testable code, setting the standard for engineering excellence across the team
Drive technical discussions, design reviews, and code reviews, fostering a culture of high quality engineering
Design and maintain high-performance REST APIs, adhering to best practices in API design and security
Proactively address system reliability, scalability, and observability, implementing the right monitoring and alerting strategies
Collaborate closely with product managers, designers, and other engineers to deliver high impact solutions
Mentor and coach other engineers, guiding them on technical and architectural decisions
Contribute to technical strategy and long term engineering roadmap

Qualification

Backend software developmentRESTful APIsCloud platformsModern programming languagesCI/CD practicesSpring BootKubernetesObservability toolsFinancial domain experience

Required

Bachelor's degree in Computer Science, Software Engineering, or related field
6+ years of professional backend software development experience
Strong foundation in computer science fundamentals
Proven experience building and scaling RESTful APIs and working with modern backend technologies
Proficiency with at least one modern programming language (Java, Kotlin, Go, Python, etc.)
Experience with cloud platforms (AWS, GCP, or Azure)
Strong understanding of CI/CD, automated testing, and code quality practices

Preferred

Experience with Spring Boot or another modern backend framework
Exposure to cloud infrastructure tools such as Kubernetes or similar
Familiarity with observability tools (e.g., Grafana, Prometheus, or Splunk)
Interest or experience in the financial domain

Company

Airwallex

twittertwittertwitter
Glassdoor3.4
company-logo
Airwallex is a global payments and financial platform that provides business accounts, payment solutions, and spend management tools.
dateFounded in 2015
location
Singapore, Central Region, SGP
people-size1001-5000 employees
web-link
http://www.airwallex.com

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

leader-logo
Jack Zhang
Co-Founder & CEO
linkedin
leader-logo
Jacob Dai
Co-Founder & CTO

Recent News

Mobile World Live
Airwallex targets Europe with €200M Dutch investment
2026-01-06
DealStreetAsia
Airwallex to invest $234m in the Netherlands marking shift from APAC base
2026-01-06
Electronic Payments International
Airwallex to invest in Netherlands as it ramps up Europe shift – report
2026-01-06
Company data provided by crunchbase