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Senior Backend Engineer, Cards at Airwallex - Singapore | Apply Now!

Airwallex

Senior Backend Engineer, Cards at Airwallex - Singapore | Apply Now!

full-timePosted: Jan 16, 2026

Job Description

Senior Backend Engineer, Spend Team (Cards) - Airwallex, Singapore

About Airwallex

Airwallex is revolutionizing global finance for modern businesses. We provide a unified platform encompassing business accounts, global payments, spend management, and treasury solutions. With our proprietary infrastructure and software, we empower over 200,000 businesses worldwide, including industry leaders like Brex, Rippling, Navan, Qantas, and SHEIN, enabling them to operate globally with unprecedented efficiency.

Founded in Melbourne and now boasting a team of over 2,000 innovative professionals across 26 global offices, Airwallex is valued at US$8 billion. We are backed by world-renowned investors such as T. Rowe Price, Visa, Mastercard, Robinhood Ventures, Sequoia, Salesforce Ventures, DST Global, and Lone Pine Capital. Join us at the forefront of building the future of global payments and financial infrastructure.

Attributes We Value

We seek individuals with a builder's mindset, entrepreneurial spirit, and a drive for real impact. We value strong expertise, sharp analytical skills, and a passion for our mission, guided by our operating principles. We encourage rapid, well-informed action, deep curiosity, and first-principles thinking, balancing speed with thoroughness.

We look for humble, collaborative individuals who can transform zero-to-one ideas into tangible products and deliver end-to-end results. Embrace AI to enhance your work, solve problems efficiently, and tackle complex, high-impact challenges alongside exceptional colleagues. Develop your career as we collectively shape the future of global banking. If you're ready to make a significant contribution, let's build together.

About the Engineering Team

The Airwallex Engineering team is a diverse collective of innovators, builders, and problem-solvers united by a shared mission: to empower businesses to operate seamlessly, anywhere, anytime. We thrive in a collaborative, fast-paced environment where we constantly push the boundaries of financial technology. We prioritize technical excellence, continuous learning, and a strong sense of ownership, working together to create scalable, reliable, and secure products that enable businesses of all sizes to grow without borders.

About the Cards Team

The Cards team at Airwallex is responsible for building and maintaining the distributed systems that allow businesses to issue debit cards and manage their expenses at scale. We address complex requirements related to compliance, security, and the evolving needs of our global user base. We support millions of seamless card transactions and deliver robust, reliable expense management solutions for companies worldwide.

Role Overview: Senior Backend Engineer, Spend Team (Cards)

As a Senior Backend Engineer on the Cards team in Singapore, you will play a crucial role in designing and building the scalable backend systems that power our card issuance and expense management products. You will collaborate with cross-functional teams to deliver reliable, secure features while mentoring engineers and influencing the technical direction of the platform.

A Day in the Life

  • Design, develop, and deploy high-performance backend services for card issuance and expense management.
  • Participate in architectural discussions and contribute to the evolution of our backend systems.
  • Write clean, testable, and maintainable code, adhering to engineering best practices.
  • Collaborate with product managers, frontend engineers, and other stakeholders to define and deliver new features.
  • Mentor junior engineers, providing guidance and support to help them grow their skills.
  • Participate in code reviews, providing constructive feedback to improve code quality.
  • Troubleshoot and resolve production issues, ensuring the stability and reliability of our platform.
  • Stay up-to-date with the latest technologies and trends in backend development.

Why Singapore?

Singapore is a global hub for innovation and technology, offering a vibrant and diverse ecosystem for engineers. Airwallex's presence in Singapore provides an opportunity to work in a dynamic market, collaborate with talented colleagues from around the world, and contribute to the growth of a leading fintech company.

Career Path

At Airwallex, we are committed to investing in the growth and development of our employees. As a Senior Backend Engineer, you will have the opportunity to advance your career through various paths, including:

  • Technical Leadership: Lead a team of engineers, providing technical guidance and mentoring.
  • Architect: Focus on designing and implementing the architecture of our backend systems.
  • Principal Engineer: Drive innovation and technical excellence across the organization.
  • Management: Lead an engineering team, managing resources and driving project execution.

Salary and Benefits

Airwallex offers a competitive salary and benefits package, including:

  • Competitive base salary commensurate with experience and location
  • Equity in a rapidly growing company
  • Comprehensive health, dental, and vision insurance
  • Generous paid time off policy
  • Professional development opportunities
  • Flexible work arrangements
  • Company-sponsored events and activities
  • Modern and collaborative office environment

Airwallex Culture

Our culture is built on a foundation of collaboration, innovation, and customer focus. We are passionate about empowering businesses to operate globally and are committed to providing our employees with the resources and support they need to succeed. We believe in fostering a diverse and inclusive work environment where everyone feels valued and respected.

How to Apply

If you are a passionate and talented backend engineer looking for an opportunity to make a significant impact, we encourage you to apply. Please submit your resume and cover letter through our online application portal. We look forward to hearing from you!

FAQ

  1. What programming languages do you use?

    We primarily use Java, Go, and Python for backend development.

  2. What is the interview process like?

    The interview process typically involves a technical phone screen, a coding challenge, and on-site interviews with members of the engineering team.

  3. What are the opportunities for professional development?

    We offer a variety of professional development opportunities, including training courses, conferences, and mentorship programs.

  4. What is the work-life balance like?

    We believe in fostering a healthy work-life balance and offer flexible work arrangements to support our employees.

  5. What is the company culture like?

    We have a collaborative, innovative, and customer-focused culture. We value diversity and inclusion and are committed to providing our employees with the resources and support they need to succeed.

  6. What are the main responsibilities of a Senior Backend Engineer?

    Designing, developing, and maintaining scalable and reliable backend systems; collaborating with cross-functional teams; mentoring junior engineers; and contributing to the technical direction of the platform.

  7. What kind of experience are you looking for in a candidate?

    We are looking for candidates with 5+ years of experience in backend software engineering, strong knowledge of distributed systems, and experience with card issuance or expense management systems is a plus.

  8. What are the key technologies used by the Cards team?

    Java, Go, Python, Spring Boot, gRPC, Protocol Buffers, Kafka, Docker, Kubernetes, AWS.

  9. How does Airwallex support employee growth?

    We offer various growth opportunities, including technical leadership roles, architectural roles, and management positions. We also provide ongoing training and mentorship to help employees develop their skills and advance their careers.

  10. What makes Airwallex a great place to work?

    Airwallex offers a unique opportunity to work on cutting-edge technology, make a significant impact on the future of global finance, and collaborate with a diverse and talented team. We are also committed to fostering a supportive and inclusive work environment where everyone can thrive.

Locations

  • Singapore, Singapore, Singapore

Salary

Estimated Salary Rangemedium confidence

132,000 - 198,000 USD / yearly

Source: ai estimated

* This is an estimated range based on market data and may vary based on experience and qualifications.

Skills Required

  • Backend Developmentintermediate
  • Distributed Systemsintermediate
  • Card Issuanceintermediate
  • Expense Managementintermediate
  • Microservices Architectureintermediate
  • API Designintermediate
  • Cloud Computing (AWS, GCP, Azure)intermediate
  • Database Management (SQL, NoSQL)intermediate
  • DevOps Practicesintermediate
  • CI/CD Pipelinesintermediate
  • Software Engineeringintermediate
  • Agile Methodologiesintermediate
  • Problem-Solvingintermediate
  • Mentoringintermediate
  • Technical Leadershipintermediate
  • Javaintermediate
  • Gointermediate
  • Pythonintermediate
  • Kotlinintermediate
  • Spring Bootintermediate
  • gRPCintermediate
  • Protocol Buffersintermediate
  • Kafkaintermediate
  • Dockerintermediate
  • Kubernetesintermediate
  • Observability (Monitoring, Logging, Tracing)intermediate
  • Security Best Practicesintermediate
  • Testing (Unit, Integration, End-to-End)intermediate

Required Qualifications

  • Bachelor's degree in Computer Science or related field. (experience)
  • 5+ years of experience in backend software engineering. (experience)
  • Experience designing and building scalable, secure distributed systems. (experience)
  • Strong understanding of microservices architecture and API design principles. (experience)
  • Proficiency in one or more backend programming languages (e.g., Java, Go, Python). (experience)
  • Experience with cloud computing platforms (e.g., AWS, GCP, Azure). (experience)
  • Experience with database technologies (SQL and NoSQL). (experience)
  • Experience with DevOps practices and CI/CD pipelines. (experience)
  • Experience with card issuance and expense management systems is a plus. (experience)
  • Strong problem-solving and analytical skills. (experience)
  • Excellent communication and collaboration skills. (experience)
  • Experience mentoring junior engineers. (experience)
  • Experience contributing to the technical vision of a product. (experience)
  • Understanding of security best practices in software development. (experience)
  • Experience with observability tools (e.g., Prometheus, Grafana, ELK stack). (experience)

Responsibilities

  • Design and implement scalable, secure backend services that power the Cards product.
  • Contribute to the architecture and long-term technical vision of our backend systems.
  • Own end-to-end delivery of new features and improvements—from design to production.
  • Write high-quality, testable code with attention to reliability and maintainability.
  • Promote and uphold engineering best practices, including observability and API design.
  • Collaborate with cross-functional teams including product, infrastructure, and security.
  • Mentor junior engineers and provide technical guidance.
  • Participate in code reviews and contribute to improving code quality.
  • Troubleshoot and resolve production issues in a timely manner.
  • Stay up-to-date with the latest technologies and trends in backend development.
  • Contribute to the development of engineering standards and best practices.
  • Participate in the on-call rotation to ensure system availability and reliability.
  • Work closely with product managers to define and prioritize features.
  • Translate business requirements into technical specifications and designs.
  • Ensure compliance with relevant industry regulations and security standards.

Benefits

  • general: Competitive salary and equity package.
  • general: Comprehensive health insurance.
  • general: Generous paid time off.
  • general: Professional development opportunities.
  • general: Flexible work arrangements.
  • general: Employee assistance program.
  • general: Company-sponsored events and activities.
  • general: Commuter benefits.
  • general: Free snacks and drinks.
  • general: Modern and collaborative workspace.
  • general: Opportunity to work on cutting-edge technology.
  • general: Be part of a rapidly growing global company.
  • general: Make a significant impact on the future of global finance.
  • general: Work with a diverse and talented team.
  • general: Exposure to a wide range of technologies and business challenges.
  • general: Relocation assistance (if applicable).
  • general: Visa sponsorship (if applicable).
  • general: Learning and development budget.
  • general: Employee referral program.
  • general: Parental leave benefits.

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Tags & Categories

BackendEngineeringCardsSingaporeFintechFull-timeSenior LevelBackend EngineerSenior Backend EngineerCards TeamAirwallexFinancial TechnologyPaymentsGlobal PaymentsCard IssuanceExpense ManagementDistributed SystemsMicroservicesJavaGoPythonAWSCloud ComputingAPI DesignScalabilitySecurityDevOpsCI/CDSoftware EngineeringTechnical LeadershipMentoringCareerJobHiringRecruitingFinTechPaymentsEngineeringProduct

Answer 10 quick questions to check your fit for Senior Backend Engineer, Cards at Airwallex - Singapore | Apply Now! @ Airwallex.

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Airwallex logo

Senior Backend Engineer, Cards at Airwallex - Singapore | Apply Now!

Airwallex

Senior Backend Engineer, Cards at Airwallex - Singapore | Apply Now!

full-timePosted: Jan 16, 2026

Job Description

Senior Backend Engineer, Spend Team (Cards) - Airwallex, Singapore

About Airwallex

Airwallex is revolutionizing global finance for modern businesses. We provide a unified platform encompassing business accounts, global payments, spend management, and treasury solutions. With our proprietary infrastructure and software, we empower over 200,000 businesses worldwide, including industry leaders like Brex, Rippling, Navan, Qantas, and SHEIN, enabling them to operate globally with unprecedented efficiency.

Founded in Melbourne and now boasting a team of over 2,000 innovative professionals across 26 global offices, Airwallex is valued at US$8 billion. We are backed by world-renowned investors such as T. Rowe Price, Visa, Mastercard, Robinhood Ventures, Sequoia, Salesforce Ventures, DST Global, and Lone Pine Capital. Join us at the forefront of building the future of global payments and financial infrastructure.

Attributes We Value

We seek individuals with a builder's mindset, entrepreneurial spirit, and a drive for real impact. We value strong expertise, sharp analytical skills, and a passion for our mission, guided by our operating principles. We encourage rapid, well-informed action, deep curiosity, and first-principles thinking, balancing speed with thoroughness.

We look for humble, collaborative individuals who can transform zero-to-one ideas into tangible products and deliver end-to-end results. Embrace AI to enhance your work, solve problems efficiently, and tackle complex, high-impact challenges alongside exceptional colleagues. Develop your career as we collectively shape the future of global banking. If you're ready to make a significant contribution, let's build together.

About the Engineering Team

The Airwallex Engineering team is a diverse collective of innovators, builders, and problem-solvers united by a shared mission: to empower businesses to operate seamlessly, anywhere, anytime. We thrive in a collaborative, fast-paced environment where we constantly push the boundaries of financial technology. We prioritize technical excellence, continuous learning, and a strong sense of ownership, working together to create scalable, reliable, and secure products that enable businesses of all sizes to grow without borders.

About the Cards Team

The Cards team at Airwallex is responsible for building and maintaining the distributed systems that allow businesses to issue debit cards and manage their expenses at scale. We address complex requirements related to compliance, security, and the evolving needs of our global user base. We support millions of seamless card transactions and deliver robust, reliable expense management solutions for companies worldwide.

Role Overview: Senior Backend Engineer, Spend Team (Cards)

As a Senior Backend Engineer on the Cards team in Singapore, you will play a crucial role in designing and building the scalable backend systems that power our card issuance and expense management products. You will collaborate with cross-functional teams to deliver reliable, secure features while mentoring engineers and influencing the technical direction of the platform.

A Day in the Life

  • Design, develop, and deploy high-performance backend services for card issuance and expense management.
  • Participate in architectural discussions and contribute to the evolution of our backend systems.
  • Write clean, testable, and maintainable code, adhering to engineering best practices.
  • Collaborate with product managers, frontend engineers, and other stakeholders to define and deliver new features.
  • Mentor junior engineers, providing guidance and support to help them grow their skills.
  • Participate in code reviews, providing constructive feedback to improve code quality.
  • Troubleshoot and resolve production issues, ensuring the stability and reliability of our platform.
  • Stay up-to-date with the latest technologies and trends in backend development.

Why Singapore?

Singapore is a global hub for innovation and technology, offering a vibrant and diverse ecosystem for engineers. Airwallex's presence in Singapore provides an opportunity to work in a dynamic market, collaborate with talented colleagues from around the world, and contribute to the growth of a leading fintech company.

Career Path

At Airwallex, we are committed to investing in the growth and development of our employees. As a Senior Backend Engineer, you will have the opportunity to advance your career through various paths, including:

  • Technical Leadership: Lead a team of engineers, providing technical guidance and mentoring.
  • Architect: Focus on designing and implementing the architecture of our backend systems.
  • Principal Engineer: Drive innovation and technical excellence across the organization.
  • Management: Lead an engineering team, managing resources and driving project execution.

Salary and Benefits

Airwallex offers a competitive salary and benefits package, including:

  • Competitive base salary commensurate with experience and location
  • Equity in a rapidly growing company
  • Comprehensive health, dental, and vision insurance
  • Generous paid time off policy
  • Professional development opportunities
  • Flexible work arrangements
  • Company-sponsored events and activities
  • Modern and collaborative office environment

Airwallex Culture

Our culture is built on a foundation of collaboration, innovation, and customer focus. We are passionate about empowering businesses to operate globally and are committed to providing our employees with the resources and support they need to succeed. We believe in fostering a diverse and inclusive work environment where everyone feels valued and respected.

How to Apply

If you are a passionate and talented backend engineer looking for an opportunity to make a significant impact, we encourage you to apply. Please submit your resume and cover letter through our online application portal. We look forward to hearing from you!

FAQ

  1. What programming languages do you use?

    We primarily use Java, Go, and Python for backend development.

  2. What is the interview process like?

    The interview process typically involves a technical phone screen, a coding challenge, and on-site interviews with members of the engineering team.

  3. What are the opportunities for professional development?

    We offer a variety of professional development opportunities, including training courses, conferences, and mentorship programs.

  4. What is the work-life balance like?

    We believe in fostering a healthy work-life balance and offer flexible work arrangements to support our employees.

  5. What is the company culture like?

    We have a collaborative, innovative, and customer-focused culture. We value diversity and inclusion and are committed to providing our employees with the resources and support they need to succeed.

  6. What are the main responsibilities of a Senior Backend Engineer?

    Designing, developing, and maintaining scalable and reliable backend systems; collaborating with cross-functional teams; mentoring junior engineers; and contributing to the technical direction of the platform.

  7. What kind of experience are you looking for in a candidate?

    We are looking for candidates with 5+ years of experience in backend software engineering, strong knowledge of distributed systems, and experience with card issuance or expense management systems is a plus.

  8. What are the key technologies used by the Cards team?

    Java, Go, Python, Spring Boot, gRPC, Protocol Buffers, Kafka, Docker, Kubernetes, AWS.

  9. How does Airwallex support employee growth?

    We offer various growth opportunities, including technical leadership roles, architectural roles, and management positions. We also provide ongoing training and mentorship to help employees develop their skills and advance their careers.

  10. What makes Airwallex a great place to work?

    Airwallex offers a unique opportunity to work on cutting-edge technology, make a significant impact on the future of global finance, and collaborate with a diverse and talented team. We are also committed to fostering a supportive and inclusive work environment where everyone can thrive.

Locations

  • Singapore, Singapore, Singapore

Salary

Estimated Salary Rangemedium confidence

132,000 - 198,000 USD / yearly

Source: ai estimated

* This is an estimated range based on market data and may vary based on experience and qualifications.

Skills Required

  • Backend Developmentintermediate
  • Distributed Systemsintermediate
  • Card Issuanceintermediate
  • Expense Managementintermediate
  • Microservices Architectureintermediate
  • API Designintermediate
  • Cloud Computing (AWS, GCP, Azure)intermediate
  • Database Management (SQL, NoSQL)intermediate
  • DevOps Practicesintermediate
  • CI/CD Pipelinesintermediate
  • Software Engineeringintermediate
  • Agile Methodologiesintermediate
  • Problem-Solvingintermediate
  • Mentoringintermediate
  • Technical Leadershipintermediate
  • Javaintermediate
  • Gointermediate
  • Pythonintermediate
  • Kotlinintermediate
  • Spring Bootintermediate
  • gRPCintermediate
  • Protocol Buffersintermediate
  • Kafkaintermediate
  • Dockerintermediate
  • Kubernetesintermediate
  • Observability (Monitoring, Logging, Tracing)intermediate
  • Security Best Practicesintermediate
  • Testing (Unit, Integration, End-to-End)intermediate

Required Qualifications

  • Bachelor's degree in Computer Science or related field. (experience)
  • 5+ years of experience in backend software engineering. (experience)
  • Experience designing and building scalable, secure distributed systems. (experience)
  • Strong understanding of microservices architecture and API design principles. (experience)
  • Proficiency in one or more backend programming languages (e.g., Java, Go, Python). (experience)
  • Experience with cloud computing platforms (e.g., AWS, GCP, Azure). (experience)
  • Experience with database technologies (SQL and NoSQL). (experience)
  • Experience with DevOps practices and CI/CD pipelines. (experience)
  • Experience with card issuance and expense management systems is a plus. (experience)
  • Strong problem-solving and analytical skills. (experience)
  • Excellent communication and collaboration skills. (experience)
  • Experience mentoring junior engineers. (experience)
  • Experience contributing to the technical vision of a product. (experience)
  • Understanding of security best practices in software development. (experience)
  • Experience with observability tools (e.g., Prometheus, Grafana, ELK stack). (experience)

Responsibilities

  • Design and implement scalable, secure backend services that power the Cards product.
  • Contribute to the architecture and long-term technical vision of our backend systems.
  • Own end-to-end delivery of new features and improvements—from design to production.
  • Write high-quality, testable code with attention to reliability and maintainability.
  • Promote and uphold engineering best practices, including observability and API design.
  • Collaborate with cross-functional teams including product, infrastructure, and security.
  • Mentor junior engineers and provide technical guidance.
  • Participate in code reviews and contribute to improving code quality.
  • Troubleshoot and resolve production issues in a timely manner.
  • Stay up-to-date with the latest technologies and trends in backend development.
  • Contribute to the development of engineering standards and best practices.
  • Participate in the on-call rotation to ensure system availability and reliability.
  • Work closely with product managers to define and prioritize features.
  • Translate business requirements into technical specifications and designs.
  • Ensure compliance with relevant industry regulations and security standards.

Benefits

  • general: Competitive salary and equity package.
  • general: Comprehensive health insurance.
  • general: Generous paid time off.
  • general: Professional development opportunities.
  • general: Flexible work arrangements.
  • general: Employee assistance program.
  • general: Company-sponsored events and activities.
  • general: Commuter benefits.
  • general: Free snacks and drinks.
  • general: Modern and collaborative workspace.
  • general: Opportunity to work on cutting-edge technology.
  • general: Be part of a rapidly growing global company.
  • general: Make a significant impact on the future of global finance.
  • general: Work with a diverse and talented team.
  • general: Exposure to a wide range of technologies and business challenges.
  • general: Relocation assistance (if applicable).
  • general: Visa sponsorship (if applicable).
  • general: Learning and development budget.
  • general: Employee referral program.
  • general: Parental leave benefits.

Target Your Resume for "Senior Backend Engineer, Cards at Airwallex - Singapore | Apply Now!" , Airwallex

Get personalized recommendations to optimize your resume specifically for Senior Backend Engineer, Cards at Airwallex - Singapore | Apply Now!. Takes only 15 seconds!

AI-powered keyword optimization
Skills matching & gap analysis
Experience alignment suggestions

Check Your ATS Score for "Senior Backend Engineer, Cards at Airwallex - Singapore | Apply Now!" , Airwallex

Find out how well your resume matches this job's requirements. Get comprehensive analysis including ATS compatibility, keyword matching, skill gaps, and personalized recommendations.

ATS compatibility check
Keyword optimization analysis
Skill matching & gap identification
Format & readability score

Tags & Categories

BackendEngineeringCardsSingaporeFintechFull-timeSenior LevelBackend EngineerSenior Backend EngineerCards TeamAirwallexFinancial TechnologyPaymentsGlobal PaymentsCard IssuanceExpense ManagementDistributed SystemsMicroservicesJavaGoPythonAWSCloud ComputingAPI DesignScalabilitySecurityDevOpsCI/CDSoftware EngineeringTechnical LeadershipMentoringCareerJobHiringRecruitingFinTechPaymentsEngineeringProduct

Answer 10 quick questions to check your fit for Senior Backend Engineer, Cards at Airwallex - Singapore | Apply Now! @ Airwallex.

Quiz Challenge
10 Questions
~2 Minutes
Instant Score

Related Books and Jobs

No related jobs found at the moment.